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Abraxas Petroleum Corporation (NasdaqCM:AXAS) is a San Antonio based crude oil and natural gas exploration and production company with operations across the Rocky Mountain, Permian Basin and onshore Gulf Coast regions of the United States.

Advantage Oil & Gas Ltd. (TSX:AAV.TO; NYSE:AAV) is a growth-oriented corporation focused entirely on development of its significant position in the Montney natural gas and liquids resource play. The Corporation's head office in Calgary, Alberta, Canada.

Algonquin Power & Utilities Corp. (TSX:AQN.TO) owns and operates a diversified $3.7 billion portfolio of regulated and non-regulated utilities in North America. The regulated utility business provides water, electricity and natural gas utility services to over 480,000 customers through a portfolio of regulated generation, transmission and distribution utility systems.

AltaGas Ltd. (TSX: ALA.TO) is an energy infrastructure company with a focus on natural gas, power and regulated utilities. AltaGas creates value by growing and optimizing its energy infrastructure, including a focus on clean energy sources.

Altai Resources Inc. (TSX.ATI.V) is a Canadian resource company with a diversified portfolio of natural gas, oil & gold properties in Canada. Altai holds a large, non joint ventured, land package with 100% interest in the heart of the St. Lawrence Lowlands Utica Shale gas play in Quebec - the Sorel-Trois Rivieres natural gas property of five permits aggregating to 68,483 hectares (169,221 acres), with significant potential for hydrocarbon production and storage. In addition, Altai retains a 15% gross royalty in the adjoining permit of 12,334 hectares (30,477 acres) held by Talisman Energy Canada.

Altima Resources Ltd. (TSX:ARH.V) is a junior energy company engaged in the exploration and development of petroleum and natural gas in Western Canada. It is the Company's intent to focus on new long life petroleum and natural gas prospects in select core areas and grow its reserve base through drilling. The company focuses its activities where it can participate in moderate depth, multi-zone prospects that are near known pools or in areas that are clearly understood geologically. Attention is given to exploring for liquids rich high impact gas targets and light gravity oil targets for value acceleration.

Altura Energy Inc. (TSX:ATU.V) is a public oil and gas corporation active in the exploration and development of oil and natural gas in east central Alberta.

Alvopetro Energy Ltd. (TSX:ALV.V) vision is to be the premier independent exploration and production company in Brazil , maximizing shareholder value by applying innovation to underexploited opportunities. Our strategy is to focus on three core opportunities including lower risk development drilling on our mature fields, shallow conventional exploration, and the development of the significant hydrocarbon potential present in our deep Gomo tight-gas resource play. Our efforts in the near-term are concentrated on building a natural gas business by finalizing a unitization agreement and securing a gas sales contract for our 197(2) discovery.

Ameren Corporation (NYSE:AEE) St. Louis-based Ameren Corporation powers the quality of life for 2.4 million electric customers and more than 900,000 natural gas customers in a 64,000-square-mile area through its Ameren Missouri and Ameren Illinois rate-regulated utility subsidiaries. Ameren Illinois provides electric delivery and transmission service as well as natural gas delivery service while Ameren Missouri provides vertically integrated electric service, with generating capacity of 10,200 megawatts, and natural gas delivery service. Ameren Transmission of Illinois develops regional electric transmission projects.

American Power Group Corporation (OTC:APGI) subsidiary, American Power Group, Inc. provides cost effective products and services that promote the economic and environmental benefits of our alternative fuel and emission reduction technologies. Our patented Turbocharged Natural Gas® Dual Fuel Conversion Technology is a unique non-invasive software driven solution that converts existing vehicular and stationary diesel engines to run concurrently on diesel and various forms of natural gas including compressed natural gas, liquefied natural gas, conditioned well-head/ditch gas or bio-methane gas with the flexibility to return to 100% diesel fuel operation at any time. Depending on the fuel source and operating profile, our EPA and CARB approved dual fuel conversions seamlessly displace 45% - 65% of diesel fuel with cleaner burning natural gas resulting in measurable reductions in nitrous oxides (NOx) and other diesel-related emissions. Through our Trident Associated Gas Capture and Recovery Technology, we provide oil and gas producers a flare capture service solution for associated gases produced at their remote and stranded well sites. These producers are under tightening regulatory pressure to capture and liquefy the flared gases at their remote and stranded well sites or face significant oil output reductions. With our proprietary Flare to Fuel™ process technology we can convert these captured gases into natural gas liquids ("NGL") which can be sold as heating fluids, emulsifiers, or be further processed by refiners. Given pending federal methane capture regulations, we anticipate our next generation NGL processing systems will have the capability to convert the residual flared methane into pipeline quality natural gas that can be sold for a variety of dedicated and dual fuel vehicular, stationary, industrial and household uses.

Anadarko Petroleum (NYSE:APC) mission is to deliver a competitive and sustainable rate of return to shareholders by exploring for, acquiring and developing oil and natural gas resources vital to the world's health and welfare. It is one of the world's largest independent exploration and production companies.

ANTERO Midstream GP LP (NYSE:AMGP) owns the general partner of Antero Midstream Partners LP (AM) ("Antero Midstream") and incentive distribution rights in Antero Midstream and has elected to be classified as an entity taxable as a corporation for U.S. federal income tax purposes. Antero Midstream GP LP is a Delaware limited partnership that owns the general partner of Antero Midstream and incentive distribution rights in Antero Midstream. - To best support its growing production, Antero Resources formed Antero Midstream Partners LP to create a seamless and highly effective system of gathering pipelines and compressor stations in the Marcellus and Utica Shales. Our midstream natural gas system is comprised of gathering pipelines and compressor stations, processing and fractionation plants, and water handling and treatment infrastructure. Our system provides the link between exploration and production of natural gas from the wellhead and the delivery of natural gas and its by-products to industrial, commercial, and residential end-users.

Antrim Energy Inc. (TSX:AEN.V; LSE:AEY.L) is an oil and gas exploration and production company. Antrim's high impact oil and gas exploration is focused in the United Kingdom and Ireland. Antrim is based in Calgary, Canada with an office in the United Kingdom.

ARC Resources Ltd. (TSX:ARX.TO) is one of Canada's leading conventional oil and gas companies. Our operations are focused in five core areas across western Canada, and provide us with an extensive resource base of high quality oil and natural gas development opportunities.

Arsenal Energy Inc. (TSX: AEI.TO) is an oil and gas exploration, development and production Company headquartered in Calgary, Alberta, Canada. Arsenal's operates in the US in North Dakota and in Canada in Alberta and British Columbia with activities focused at Stanley and Lindahl in North Dakota and at Princess in Alberta. The Company produces light oil in North Dakota at Stanley and Lindahl and in Alberta at Evi and medium oil in Alberta at Provost, Chauvin and Princess. Natural gas is produced at Desan in British Columbia and in Alberta at Chauvin, Princess and Provost.

Atlantica Yield PLC (NasdaqGS:AY) owns, and manages renewable energy natural gas, power, electric transmission lines, and water assets in North America, South America, Spain, Algeria, and South Africa. As of December 31, 2017, it had 22 assets, including 1,446 megawatts (MW) of renewable energy generation assets comprising solar power and wind plants; 300 MW of natural gas power generation assets that produce electricity and steam from natural gas; 1,099 miles of electric transmission lines; and desalination plants with an aggregate capacity of 10.5 million cubic feet per day.

Atmos Energy (NYSE:ATO) headquartered in Dallas, is one of the country's largest natural-gas-only distributors, serving over three million natural gas distribution customers in over 1,400 communities in eight states from the Blue Ridge Mountains in the East to the Rocky Mountains in the West. Atmos Energy also manages company-owned natural gas pipeline and storage assets, including one of the largest intrastate natural gas pipeline systems in Texas and provides natural gas marketing and procurement services to industrial, commercial and municipal customers primarily in the Midwest and Southeast.

Avista Corp. (NYSE:AVA) is an energy company involved in the production, transmission and distribution of energy as well as other energy-related businesses. Avista Utilities is our operating division that provides electric service to 369,000 customers and natural gas to 329,000 customers. Its service territory covers 30,000 square miles in eastern Washington, northern Idaho and parts of southern and eastern Oregon, with a population of 1.6 million. Alaska Energy and Resources Company is an Avista subsidiary that provides retail electric service in the city and borough of Juneau, Alaska, through its subsidiary Alaska Electric Light and Power Company

Baker Hughes Inc. (NYSE:BHI) is a leading supplier of oilfield services, products, technology and systems to the worldwide oil and natural gas industry. The company's employees today work in more than 80 countries helping customers find, evaluate, drill, produce, transport and process hydrocarbon resources.

Barnwell Industries (NYSE MKT:BRN) and its subsidiaries are principally engaged in oil and natural gas exploration, development, production and sales in Canada; real estate and contract drilling in the USA.

Baytex Energy Corp (TSX:BTE.TO; NYSE:BTE) is an oil and gas corporation based in Calgary, Alberta. The company is engaged in the acquisition, development and production of crude oil and natural gas in the Western Canadian Sedimentary Basin and in the Eagle Ford in the United States.

Bellatrix Exploration Ltd. (TSX:BXE.TO; NYSE:BXE) is a Calgary, Alberta-based intermediate energy producer focused on exploration and development of light oil and liquids-rich natural gas opportunities in some of the most exciting plays in the Western Canada Sedimentary Basin. Currently the Company is focusing on developing its two core resource plays, the Cardium and the Notikewin/Falher intervals in Western Canada. The Notikewin/Falher in Alberta's deep basin boasts abundant, liquids-rich natural gas with compelling economics. The Cardium is a highly economic investment that has the potential to add substantial reserves, production and long term economic value for our shareholders. Both plays have thick resource rich reservoirs with exceptional subsurface control which have proven to be predictable and repeatable with the application of modern drilling and completion techniques.

BHP Billiton Ltd. (NYSE:BHP; ASX:BHP.AX) discovers, acquires, develops, and markets natural resources worldwide. Our Petroleum Business includes exploration, development, production and marketing activities. We have a high-quality resource base concentrated in the United States and Australia. Our core production operations are located in the US Gulf of Mexico, Australia, Trinidad and Tobago (conventional) and Onshore US (unconventional). We produce crude oil and condensate, gas and natural gas liquids (NGLs).

Bill Barrett Corp (NYSE:BBG) headquartered in Denver, Colorado, develops oil and natural gas in the Rocky Mountain region of the United States.

BIRCHCLIFF ENERGY LTD (TSX:BIR.TO) is a Calgary, Alberta based intermediate oil and gas company that explores for, develops and produces natural gas, light oil and natural gas liquids. All of Birchcliff's operations are concentrated in the Peace River Arch area of Alberta.

Black Hills Corp. (NYSE:BKH) is a growth-oriented, vertically-integrated energy company with a tradition of improving life with energy and a vision to be the energy partner of choice. Based in Rapid City, S.D., the company serves 1.2 million natural gas and electric utility customers in 8 states. The company also generates wholesale electricity and produces natural gas and oil.

Blacksands Petroleum Inc. (OTC:BSPE) is an oil and natural gas company engaged in the exploration for, and the acquisition, development and production of, oil and natural gas reserves in the United States.

BlackStar Energy Group, Inc (OTC:BEGI) an independent oil and gas company, focuses on the acquisition, exploration, development, production, and sale of natural gas and crude oil.

Boardwalk Pipeline Partners, LP (NYSE:BWP) is a midstream master limited partnership that provides transportation, storage, gathering and processing of natural gas and liquids for its customers.

Bonanza Creek Energy Co. (NYSE: BCEI) is an independent oil and natural gas Company engaged in the acquisition, exploration, development and production of onshore oil and associated liquids-rich natural gas in the United States.

Bonavista Energy Corporation (TSX:BNP.TO) is a mid-sized energy corporation committed to maintaining its emphasis on operating high quality oil and natural gas properties, capitalizing and operating these properties efficiently and effectively and ensuring financial strength and sustainability.

BP plc (NYSE:BP) Bonavista Energy Corporation (TSX:BNP.TO) operates as an integrated oil and gas company worldwide. It operates through three segments: Upstream, Downstream, and Rosneft. The Upstream segment engages in the oil and natural gas exploration, field development, and production; midstream transportation, storage, and processing; and marketing and trading of natural gas, including liquefied natural gas (LNG), and power and natural gas liquids (NGLs). It also owns and manages crude oil and natural gas pipelines; processing facilities and export terminals; and LNG processing facilities and transportation, as well as NGLs extraction business.

Cabot Oil & Gas (NYSE:COG) headquartered in Houston, Texas is a leading independent natural gas producer, with its entire resource base located in the continental United States.

CALFRAC WELL SERVICES LTD (TSX:CFW.TO) is an innovative pressure pumping services provider focused on North America's premier unconventional natural gas and light oil plays plus strategic international markets.

Canacol Energy Ltd. (TSX:CNE.TO; OTC: CNNEF; Bogota:CNEC) is an exploration and production company with operations focused in Colombia and Ecuador. The Corporation's common stock trades on the TSX, the OTCQX in the United States of America, and the Colombia Stock Exchange under ticker symbols CNE, CNNEF, and CNEC, respectively. Natural Gas Exploration is focused in Colombia.

Canada Energy Partners Inc. (TSX:CE.V) is an emerging Canadian natural gas exploration and development company with a concentrated land position in high-impact multi-zone potential areas in northeastern British Columbia.

Canadian Natural Resources Limited (TSX:CNQ.TO) is a senior oil and natural gas production company, with continuing operations in its core areas located in Western Canada, the U.K. portion of the North Sea and Offshore Africa.

Canadian Spirit Resources Inc. (TSX:SPI.V) is a natural resources company focusing on the identification and development of opportunities in the unconventional natural gas sector of the energy industry.

Ceiba Energy Services Inc. (TSX:CEI.V) provides specialized services to the energy sector, specifically to companies involved in the exploration, extraction and production of oil and natural gas in Western Canada. Ceiba develops and constructs facilities in proximity to its customers to provide treatment of crude oil emulsion, terminalling, storage and marketing of oil and disposal of production water.

Cenovus Energy Inc. (TSX:CVE.TO, NYSE: CVE) is a Canadian integrated oil company. It is committed to applying fresh, progressive thinking to safely and responsibly unlock energy resources the world needs. Operations include oil sands projects in northern Alberta which use specialized methods to drill and pump the oil to the surface and established natural gas and oil production in Alberta and Saskatchewan. The company also has 50% ownership in two U.S. refineries. Natural Gas

CenterPoint Energy, Inc. (NYSE:CNP) headquartered in Houston, Texas, is a domestic energy delivery company that includes electric transmission & distribution, natural gas distribution and energy services operations. The company serves more than five million metered customers primarily in Arkansas, Louisiana, Minnesota, Mississippi, Oklahoma, and Texas. The company also owns a 55.4 percent limited partner interest in Enable Midstream Partners, a publicly traded master limited partnership it jointly controls with OGE Energy Corp., which owns, operates and develops natural gas and crude oil infrastructure assets. CenterPoint Energy and its predecessor companies have been in business for more than 140 years.

Centrica plc (OTC:CPYYY; LSE:CNA.L) operates as an integrated energy company worldwide. The company engages in the generation, trading, and optimization of power from its gas-fired power stations, wind farms, thermal plants, and nuclear power stations. It also provides energy-related and energy management solutions. In addition, the company is involved in the exploration, production, processing, trading, and optimization of oil and gas in the Atlantic basin primarily in the North Sea and Canada; and gas storage activities. Further, it engages in the installation, repair, and maintenance of central heating, plumbing and drains, gas appliances, and kitchen appliances; installation and maintenance of heating, ventilation, and air conditioning equipment, as well as water heaters and solar power generating equipment; and provision of breakdown services. Additionally, the company offers solutions, such as payment options, online account management capabilities, various price plans, and emergency breakdown services; and insurance related products. Centrica plc offers its products and services to residential, business, commercial, and industrial customers. Natural Gas

Cequence Energy Ltd. (TSX:CQE.TO) is a publicly traded Canadian energy company involved in the acquisition, exploitation, exploration, development and production of natural gas and crude oil in western Canada.

Changfeng Energy Inc. (TSX:CFY.V) is a natural gas service provider with operations located throughout the People's Republic of China. The Company services industrial, commercial and residential customers, providing them with natural gas for heating purposes and fuel for transportation. The Company has developed a significant natural gas pipeline network as well as urban gas delivery networks, stations, substations and gas pressure regulating stations in Sanya City & Haitang Bay. Through its network of pipelines, the Company provides safe and reliable delivery of natural gas to both homes and businesses. The Company is headquartered in Toronto, Ontario.

Chaparral Energy, Inc. (NYSE:CHAP) is an independent oil and natural gas exploration and production company headquartered in Oklahoma City. Founded in 1988, Chaparral is a leading Mid-Continent operator with focused operations in Oklahoma's fast-growing STACK Play. The company has potential production reserves of more than 1 billion barrels of oil equivalent and approximately 400,000 net surface acres, of which approximately 110,000 acres are in the highly economic STACK Play.

CHEETAH OIL & GAS (OTC:COHG) engages in the exploration for and production of oil and natural gas primarily in Mississippi, the United States.

Cheniere Energy, Inc. (NYSE MKT:LNG) is a Houston-based energy company primarily engaged in LNG-related businesses and owns and operates the Sabine Pass LNG terminal and Creole Trail Pipeline in Louisiana. Cheniere is pursuing related business opportunities both upstream and downstream of the Sabine Pass LNG terminal. Through its subsidiary, Cheniere Partners, Cheniere is developing a liquefaction project at the Sabine Pass LNG terminal adjacent to the existing regasification facilities for up to six Trains, each of which is expected to have a nominal production capacity of approximately 4.5 mtpa of LNG. Construction has begun on Trains 1 through 5 of the Sabine Pass Liquefaction Project. Cheniere is also developing liquefaction facilities near Corpus Christi, Texas. The Corpus Christi Liquefaction Project is being designed for up to five Trains, with expected aggregate nominal production capacity of approximately 22.5 mtpa of LNG, four LNG storage tanks with capacity of approximately 13.5 Bcfe and two LNG carrier docks. Construction has begun on the first two Trains of the Corpus Christi Liquefaction Project. Cheniere has agreed in principle to partner with Parallax Enterprises, LLC for the development of up to 11 mtpa of LNG production capacity through Parallax's two mid-scale natural gas liquefaction projects, Live Oak LNG and Louisiana LNG.

Chesapeake Energy (NYSE:CHK) is the second-largest producer of natural gas and the 12th largest producer of oil and natural gas liquids in the U.S. Headquartered in Oklahoma City, the company's operations are focused on discovering and developing its large and geographically diverse resource base of unconventional oil and natural gas assets onshore in the U.S. The company also owns substantial marketing and compression businesses.

Chesapeake Utilities Corp. (NYSE:CPK) is a diversified energy company engaged in natural gas distribution, transmission, gathering and processing, and marketing; electricity distribution; propane gas distribution and wholesale marketing; and other related services.

Chevron Corporation (NYSE:CVX) is one of the world's leading integrated energy companies. The company is involved in virtually every facet of the energy industry. Chevron explores for, produces and transports crude oil and natural gas; refines, markets and distributes transportation fuels and lubricants; manufactures and sells petrochemicals and additives; generates power and produces geothermal energy; and develops and deploys technologies that enhance business value in every aspect of the company's operations. Chevron is based in San Ramon, Calif.

China National Offshore Oil Corporation/CNOOC Ltd. (NYSE:CEO) is the largest producer of offshore crude oil and natural gas in China and one of the largest independent oil and gas exploration and production companies in the world. The Group mainly engages in exploration, development, production and sale of oil and natural gas.

CHINA NATURAL GAS (OTC:CHNGQ) is one of the leading providers of pipeline natural gas for industrial, commercial and residential use and compressed natural gas (CNG) for vehicular fuel in Xi'an, China and the first China-based natural gas company publicly traded in the US. It currently owns and operates a 120 kilometer long compressed natural gas pipeline in Xi'an, China, a fast growing Chinese city supported by a population of approximately 8.5 million and is the "gateway" to the broad Western regions of China. CHNG has three profitable business segments: retail natural gas at company-owned natural gas fueling stations; end user delivery of natural gas services to residential, commercial and industrial customers; and conversion of gasoline-fueled vehicles to hybrid (natural gas/gasoline) powered vehicles.

China Petroleum & Chemical Corp.(Sinopec) (NYSE:SNP) is one of the largest integrated energy and chemical companies with upstream, midstream and downstream operations in China. Its principal operations include: the exploration and production, pipeline transportation and sales of petroleum and natural gas; the sales, storage and transportation of petroleum products, petrochemical products, synthetic fibre, fertilizer and other chemical products; import & export, as well as import and export agency business of oil, natural gas, petroleum products, petrochemical and chemical products, and other commodities and technologies; and research, development and application of technologies and information.

Chinook Energy Inc. (TSX:CKE.TO) is a Calgary-based public oil and natural gas exploration and development company with multi-zone conventional production and resource plays in western Canada.

Cimarex Energy Co. (NYSE:XEC) Denver-based Cimarex Energy Co. is an independent oil and gas exploration and production company with principal operations in the Anadarko and Permian Basins of the U.S.

Clayton Williams (NasdaqGS:CWEI) is an independent oil and gas company engaged in the exploration for and production of oil and natural gas primarily in Texas, New Mexico and Louisiana.

Clean Energy Fuels Corp. (NasdaqGS:CLNE) is the largest provider of natural gas fuel for transportation in North America. We build and operate CNG and LNG fueling stations; manufacture CNG and LNG equipment and technologies for ourselves and other companies; develop RNG production facilities; and deliver more CNG, LNG, and Redeem RNG fuel than any other company in the U.S.

Clontarf Energy (LSE:CLON.L) is an emerging oil & gas Exploration & Production company focused on Africa and South America. Natural Gas deposit located in Boliva

CMS Energy Corp. (NYSE:CMS) is a Michigan-based company that has an electric and natural gas utility, Consumers Energy, as its primary business and also owns and operates independent power generation businesses.

Companhia Energetica de Minas Gerais (CEMIG) (NYSE:CIG) is one of the most solid and important groups in the electric energy segment in Brazil, as it owns or has stakes in 103 companies and 15 consortia. An open capital company controlled by the Government of the State of Minas Gerais and has 114,000 shareholders in 44 countries. Cemig has operations in 22 Brazilian states, in addition to the Distrito Federal, and in Chile, where it operates a transmission line as part of consortium with Alusa. The company has expanded its stake in Light, assuming control of this energy distribution company which serves the city of Rio de Janeiro and other cities in the state of the same name. It also has equity stakes in electric energy transmission companies (TBE and Taesa), investments in the natural gas segment (Gasmig), telecommunications (Cemig Telecom) and energy efficiency (Efficientia). Cemig is also the only electric energy utility company in Latin America to be included in The Global Dow Index. Cemig is third among the largest generators in Brazil, and has, through its wholly-owned subsidiary, controlled and affiliated generating companies, 65 operating plants, of which 59 are hydroelectric power plants, three are thermo-electric and three are wind power plants, with 6,925 GW of installed capacity.

Comstock Resources (NYSE:CRK) is an independent energy company based in Frisco, Texas and is engaged in oil and natural gas acquisitions, exploration and development primarily in Texas and Louisiana.

Concho Resources, Inc. (NYSE:CXO) is an independent oil and natural gas company engaged in the acquisition, development and exploration of oil and natural gas properties. The Company's operations are primarily focused in the Permian Basin of southeast New Mexico and west Texas.

ConocoPhillips (NYSE:COP) is the world's largest independent E&P company based on production and proved reserves. Headquartered in Houston, Texas, ConocoPhillips has operations and activities in 25 countries. We have a leading natural gas position in Western Canada, a strong in-situ oil sands position in Northern Alberta and significant assets in Canada's Arctic.

Constellation Energy (NYSE:EXC) an Exelon company, is a leading competitive supplier of power, natural gas, renewable energy and energy management products and services for homes and businesses across the continental US. We provide integrated energy solutions-from electricity and natural gas procurement and renewable energy supply to demand-side management solutions-that help customers strategically buy, manage and use their energy.

Contango Oil & Gas Company (NYSE MKT:MCF) is a Houston, Texas based, independent energy company engaged in the exploration, development, exploitation, production and acquisition of natural gas and crude oil properties offshore in the shallow waters of the Gulf of Mexico and in the onshore Texas Gulf Coast and Rocky Mountain regions of the United States.

Corning Natural Gas Corp. (OTC:CNIG) a subsidiary of Corning Natural Gas Holding Corp. is a local distribution company with nearly 450 miles of mains that sells or transports natural gas to approximately 15,000 customers. Gas deliveries are made across 23 towns and villages, over 400 square miles, throughout the Southern Tier and central regions of New York State.

CORRIDOR RESOURCES INC (TSX:CDH.TO) is an Eastern Canadian junior resource company engaged in the exploration for and development and production of petroleum and natural gas onshore in New Brunswick and Québec and offshore in the Gulf of St. Lawrence. Corridor currently has natural gas production and reserves in the McCully Field near Sussex, New Brunswick. In addition, Corridor has discovered unrecoverable resources in Elgin, New Brunswick and a 21.67% interest in Anticosti Hydrocarbons, a joint venture which has undiscovered resources on Anticosti Island, Québec.

Cosan Limited (NYSE:CZZ) together with its subsidiaries, engages in sugar and ethanol, fuel, logistics services, lubricants, and piped natural gas businesses primarily in Brazil, rest of South America, Europe, the Middle East, Asia, and North America.

Crescent Point Energy Corp (TSX:CPG.TO) acquires, explores, develops, and produces oil and natural gas properties in Western Canada and the United States. The company's oil and natural gas properties, and related assets are located in the provinces of Saskatchewan, Alberta, and Manitoba; and the states of North Dakota, Montana, Colorado, and Utah.

CREW ENERGY INC (TSX:CR.TO) is a dynamic, growth-oriented oil and natural gas exploration and production company, focused on increasing long-term production, reserves and cash flow per share through the development of our world-class Montney resource. Crew is based in Calgary, Alberta.

Cross Border Resources, Inc. (OTC:XBOR) an independent natural gas and oil company, engages in the acquisition, exploration, development, and exploitation of natural gas and oil reserves in North America. The company focuses on the southeastern New Mexico.

Cuda Oil and Gas Inc. (TSXV: CUDA.V) is engaged in the business of exploring for, developing and producing oil and natural gas, and acquiring oil and natural gas properties across North America. The Cuda management team has worked closely together for over 20 years in both private and public company environments and has an established track record of delivering strong shareholder returns. Cuda will continue to implement its proven strategy of exploring, acquiring, and exploiting with a long term focus on large, light oil resource based assets across North America including significant operational experience in the United States. The Cuda management team brings a full spectrum of geotechnical, engineering, negotiating and financial experience to its investment decisions.

DCP Midstream Partners LP (NYSE:DPM) is a midstream master limited partnership engaged in the business of gathering, compressing, treating, processing, transporting, storing and selling natural gas; producing, fractionating, transporting, storing and selling NGLs and recovering and selling condensate; and transporting, storing and selling propane in wholesale markets. DCP Midstream Partners, LP is managed by its general partner, DCP Midstream GP, LP, which in turn is managed by its general partner, DCP Midstream GP, LLC, which is 100 percent owned by DCP Midstream, LLC, a joint venture between Phillips 66 and Spectra Energy Corp.

Delphi Energy Corp.(TSX:DEE.TO) is a Calgary-based company that explores, develops and produces oil and natural gas in Western Canada. The Company is managed by a proven technical team.

Denbury Resources Inc. (NYSE:DNR) is an independent oil and natural gas company with operations focused in two key operating areas: the Gulf Coast and Rocky Mountain regions. The Company's goal is to increase the value of its properties through a combination of exploitation, drilling and proven engineering extraction practices, with the most significant emphasis relating to carbon dioxide enhanced oil recovery ("CO2 EOR") operations.

Delta Natural Gas Co. Inc. (NasdaqGS:DGAS) distributes or transports natural gas in central and southeastern Kentucky. It operates through two segments, Regulated and Non-Regulated. The Regulated segment sells and distributes natural gas to its retail customers primarily in 23 rural counties. This segment also transports natural gas to industrial customers on its system who purchase natural gas in the open market, as well as transports natural gas on behalf of local producers and other customers not on its distribution system. This segment serves customers primarily in Nicholasville, Corbin, and Berea areas. The Non-Regulated segment purchases natural gas in the open market, primarily from Kentucky producers, and resells this gas to industrial customers on its distribution system and to others not on its system. This segment also produces and sells natural gas in the open market, as well as natural gas liquids.

Devon Energy Corporation (NYSE:DVN) is a leading independent energy company engaged in finding and producing oil and natural gas. Based in Oklahoma City and included in the S&P 500, Devon operates in several of the most prolific oil and natural gas plays in the U.S. and Canada with an emphasis on a balanced portfolio. The Company is the second-largest oil producer among North American onshore independents

Dominion Energy (NYSE: D) Nearly 6 million customers in 19 states energize their homes and businesses with electricity or natural gas from Dominion Energy (NYSE: D), headquartered in Richmond, Va. The company is committed to sustainable, reliable, affordable, and safe energy and is one of the nation's largest producers and transporters of energy with over $78 billion of assets providing electric generation, transmission and distribution, as well as natural gas storage, transmission, distribution, and import/export services. As one of the nation's leading solar operators, the company intends to reduce its carbon intensity 50 percent by 2030. Through its Dominion Energy Charitable Foundation, as well as EnergyShare and other programs, Dominion Energy plans to contribute more than $30 million in 2018 to community causes throughout its footprint and beyond.

Dorchester Minerals LP (NasdaqGS:DMLP) is a Dallas based owner of producing and non-producing crude oil and natural gas mineral, royalty, overriding royalty, net profits, and leasehold interests

DTE Energy Corporation (NYSE:DTE) is a Detroit-based diversified energy company involved in the development and management of energy-related businesses and services nationwide. Its operating units include an electric utility serving 2.1 million customers in Southeastern Michigan and a natural gas utility serving 1.2 million customers in Michigan. The DTE Energy portfolio includes non-utility energy businesses focused on power and industrial projects, natural gas pipelines, gathering and storage, and energy marketing and trading. As one of Michigan's leading corporate citizens, DTE Energy is a force for growth and prosperity in the 450 Michigan communities it serves in a variety of ways, including philanthropy, volunteerism and economic progress.

Duke Energy Corp (NYSE:DUK) Is the largest electric power holding company in the United States, supplying and delivering energy to approximately 7.3 million U.S. customers. We have approximately 57,500 megawatts of electric generating capacity in the Carolinas, the Midwest and Florida - and natural gas distribution services in Ohio and Kentucky. Our commercial and international businesses own and operate diverse power generation assets in North America and Latin America, including a portfolio of renewable energy assets. Headquartered in Charlotte, N.C., Duke Energy is a Fortune 250 company.

Dundee Energy Limited (TSX:DEN.TO) is a Canadian-based oil and natural gas company with a mandate to create long-term value for its shareholders through the exploration, development, production and marketing of oil and natural gas, and through other high impact energy projects. Dundee Energy holds interests, both directly and indirectly, in the largest accumulation of producing oil and gas assets in Ontario and, through a preferred share investment, in certain exploration and evaluation programs for oil and natural gas offshore Tunisia.

DXI Energy (TSX:DXI.TO) (formerly Dejour Energy) is an upstream oil and natural gas exploration and production company operating projects in Colorado's Piceance Basin (39,998 net acres) and in the Peace River Arch region in British Columbia (14,444 net acres). DXI Energy Inc. maintains offices in Calgary and Vancouver, Canada

EMERGE ENERGY SERVICES LP (NYSE:EMES) is a growth-oriented limited partnership engaged in the business of mining, producing, and distributing silica sand, a key input for the hydraulic fracturing of oil and natural gas wells, through its subsidiary Superior Silica Sands LLC.

Empire District Electric Company, The (NYSE:EDE) is an investor-owned, regulated utility providing electric, natural gas (through its wholly owned subsidiary, The Empire District Gas Company) and water service, with customers in Missouri, Kansas, Oklahoma, and Arkansas. A subsidiary of the Company also provides fiber optic services.

Empire Energy Group (ASX:EEG.AX) engages in the acquisition, development, production, exploration, development, and sale of oil and natural gas in the United States. The company primarily focuses on onshore long-life oil and gas fields.

Enbridge Energy Partners LP (NYSE:EEP) owns and operates a diversified portfolio of crude oil and, through its interests in Midcoast Energy Partners, L.P. ("Midcoast Partners"), natural gas transportation systems in the United States. Its principal crude oil system is the largest pipeline transporter of growing oil production from western Canada and the North Dakota Bakken formation. The system's deliveries to refining centers and connected carriers in the United States account for approximately 17 percent of total U.S. oil imports. Midcoast Partners' natural gas gathering, treating, processing and transmission assets, which are principally located onshore in the active U.S. Mid-Continent and Gulf Coast areas, deliver approximately 2.2 billion cubic feet of natural gas daily. Enbridge Partners is recognized by Forbes as one of the 100 Most Trustworthy Companies in America.

Enbridge Inc (NYSE:ENB; TSX:ENB.TO) a Canadian Company, exists to fuel people's quality of life, and has done so for more than 65 years. A North American leader in delivering energy, Enbridge has been ranked on the Global 100 Most Sustainable Corporations index for the past seven years. Enbridge operates the world's longest crude oil and liquids transportation system across Canada and the United States and has a significant and growing involvement in natural gas gathering, transmission and midstream business, as well as an increasing involvement in power transmission. Enbridge owns and operates Canada's largest natural gas distribution company, serving residential, commercial and industrial customers in Ontario, Quebec, New Brunswick and New York State. Enbridge has interests in renewable and alternative generating capacity, and continues to expand into wind, solar and geothermal power. Enbridge was ranked as one of Canada's Top 100 Employers for 2015.

EnCana Corporation (TSX:ECA.TO; NYSE:ECA) is a leading North American energy producer that is focused on developing its strong portfolio of resource plays, held directly and indirectly through its subsidiaries, producing natural gas, oil and natural gas liquids (NGLs). By partnering with employees, community organizations and other businesses, Encana contributes to the strength and sustainability of the communities where it operates.

Eneabba Gas Limited (ASX:ENB.AX) an energy company, owns and operates a portfolio of energy projects in Australia. It operates through three segments: Energy and Electricity Generation, Petroleum Exploration, and Mineral Exploration. The company focuses on the construction and operation of a 168 megawatt gas-fired Centauri 1 power station near Dongara, Western Australia. It also focuses on developing onshore gas projects in the Perth basin, including the Ocean Hill gas project and exploration permit 447.

Energen Corp (NYSE:EGN) is an oil and gas exploration and production company with headquarters in Birmingham, Alabama. The company has approximately 775 million barrels of oil-equivalent proved, probable, and possible reserves and another 2.5 billion barrels of oil-equivalent contingent resources. These all-domestic reserves and resources are located primarily in the Permian Basin in west Texas. Energen also has operations in the San Juan Basin in northern New Mexico (natural gas).

Energy Transfer Equity, L.P. (NYSE:ETE) is a master limited partnership which owns the general partner and 100% of the incentive distribution rights (IDRs) of Energy Transfer Partners, L.P. (ETP) and Sunoco LP (SUN) and approximately 2.6 million ETP Common Units, approximately 81.0 million ETP Class H Units, which track 90% of the underlying economics of the general partner interest and the IDRs of Sunoco Logistics Partners L.P. (SXL), and 100 ETP Class I Units. On a consolidated basis, ETE's family of companies owns and operates approximately 71,000 miles of natural gas, natural gas liquids, refined products, and crude oil pipelines.

Energy Transfer Partners, L.P (NYSE:ETP) is a master limited partnership owning and operating one of the largest and most diversified portfolios of energy assets in the United States. ETP's subsidiaries include Panhandle Eastern Pipe Line Company, LP (the successor of Southern Union Company) and Lone Star NGL LLC, which owns and operates natural gas liquids storage, fractionation and transportation assets. In total, ETP currently owns and operates more than 62,500 miles of natural gas and natural gas liquids pipelines. ETP also owns the general partner, 100% of the incentive distribution rights, and approximately 67.1 million common units in Sunoco Logistics Partners L.P. (SXL), which operates a geographically diverse portfolio of crude oil and refined products pipelines, terminalling and crude oil acquisition and marketing assets. Additionally, ETP owns fuel distribution and retail marketing assets and approximately 50.8% of the limited partner interests in Sunoco LP (formerly Susser Petroleum Partners LP) (SUN), a wholesale fuel distributor and convenience store operator. ETP's general partner is owned by Energy Transfer Equity, L.P. (ETE)

Energy World Corporation Ltd (ASX:EWC.AX) is a profitable integrated energy company based in Hong Kong and listed in Australia. The Company has primary gas and power operations located at Sengkang, South Sulawesi in Indonesia; and also produces gas, power and LNG in Australia. EWC is an independent, integrated energy company primarily engaged in the production and sale of power and natural gas. In power generation, we own and operate two gas-fired power plants that are located in Sengkang, South Sulawesi, Indonesia and in Alice Springs, Northern Territory Australia. EWC gas interests comprise interests in the Sengkang Contract Area in South Sulawesi, Indonesia and also interests in various gas fields in the Australian state of Queensland. The focus of EWC's future development is on the expansion of LNG business. Natural gas transported to end markets in Asia in the form of LNG, is likely to be an increasingly important energy source given Asia's growing energy requirements and the environmental advantages of natural gas as a comparatively clean fossil fuel.

EnerJex Resources, Inc (NYSE MKT:ENRJ) is an independent exploration and production company focused on the acquisition and development of oil and natural gas properties located in the Rocky Mountain and Mid-Continent regions of the United States. The Company owns oil and gas leases covering nearly 100,000 acres in multiple prolific hydrocarbon basins located in Colorado, Kansas, Nebraska, and Texas. EnerJex's producing assets are characterized by long lived reserves with low production decline rates, and the Company has identified hundreds of drilling locations within its existing properties. Through its large acreage footprint in the Denver-Julesburg ("DJ") Basin, EnerJex also has exposure to emerging oil resource plays including the horizontal Niobrara and Codell plays in Weld County, Colorado. The Company's management team has more than 100 years of combined experience in the oil and gas exploration and production industry, including geology, engineering, operations, and finance. EnerJex's headquarters are located in San Antonio, Texas.

Engie (Paris: ENGI.PA) (formerly GDF Suez) is a global energy player and an expert operator in the three key sectors of electricity, natural gas and energy services.

Eni SpA (NYSE:E) engages in oil and natural gas exploration, field development and production, as well as in the supply, trading and shipping of natural gas, LNG, electricity, fuels and chemical products. Through refineries and chemical plants, Eni processes crude oil and other oil-based feedstock to produce fuels, lubricants and chemical products that are supplied to wholesalers or through retail networks or distributors. Furthermore, Eni operates in engineering, oilfield services and construction both offshore and onshore, focusing on the execution of technologically-advanced mega-projects mainly located in frontier areas.

Enterprise Products Partners LP (NYSE: EPD) is one of the largest publicly traded partnerships and a leading North American provider of midstream energy services to producers and consumers of natural gas, NGLs, crude oil, refined products and petrochemicals. Our services include: natural gas gathering, treating, processing, transportation and storage; NGL transportation, fractionation, storage and import and export terminals; crude oil gathering, transportation, storage and terminals; petrochemical and refined products transportation, storage and terminals; and a marine transportation business that operates primarily on the United States inland and Intracoastal Waterway systems.

EOG Resources, Inc. (NYSE:EOG) is one of the largest independent (non-integrated) crude oil and natural gas companies in the United States with proved reserves in the United States, Canada, Trinidad, the United Kingdom and China.

EP Energy Corp. (NYSE: EPE) The EP Energy team has a passion for finding and producing the oil and natural gas that enriches people's lives. As a leading North American oil and natural gas producer, EP Energy has a proven strategy, a significant reserve base, multi-year drilling opportunities, and a strategic presence in a number of the country's leading unconventional resource areas. EP Energy is active in all phases of the E&P value chain-exploring for, acquiring, developing and producing oil and natural gas.

EQT Corp. (NYSE:EQT) is an integrated energy company with emphasis on Appalachian area natural gas production, gathering, and transmission. With more than 125 years of experience, EQT continues to be a leader in the use of advanced horizontal drilling technology - designed to minimize the potential impact of drilling-related activities and reduce the overall environmental footprint. Through safe and responsible operations, the Company is committed to meeting the country's growing demand for clean-burning energy, while continuing to provide a rewarding workplace and enrich the communities where its employees live and work. EQT also owns a 90% limited partner interest in EQT GP Holdings, LP. EQT GP Holdings, LP owns the general partner interest, all of the incentive distribution rights, and a portion of the limited partner interests in EQT Midstream Partners, LP.

Eurogas International Inc. (CSE: EI) is an oil and natural gas exploration company with a mandate to identify, pursue and develop large-scale, high-impact energy projects worldwide.

EV Energy Partners LP (NasdaqGS: EVEP) is a master limited partnership engaged in acquiring, producing and developing oil and natural gas properties.

Eversource Energy (NYSE:ES) a public utility holding company, through its subsidiaries, engages in the energy delivery business. The company operates in three segments: Electric Distribution, Electric Transmission, and Natural Gas Distribution. It is involved in the generation, transmission, and distribution of electricity; and distribution of natural gas. The company serves residential, commercial, and industrial customers in Connecticut, Massachusetts, and New Hampshire, the United States. It provides energy delivery services to approximately 3.6 million electric and natural gas customers. The company was formerly known as Northeast Utilities and changed its name to Eversource Energy in February 2015. Eversource Energy was founded in 1927 and is based in Springfield, Massachusetts.

EXCO Resources Inc. (NYSE:XCO) is an oil and natural gas exploration, exploitation, acquisition, development and production company headquartered in Dallas, Texas with principal operations in Texas, North Louisiana and Appalachia.

Exterran Corporation (NYSE:EXTN) is a market leader in compression, production and processing products and services, serving customers throughout the world engaged in all aspects of the oil and natural gas industry. Its global product lines include natural gas compression, process & treating and production equipment and water treatment solutions. Outside the United States, Exterran Corporation is a leading provider of full-service natural gas contract compression and a supplier of new, used, OEM and aftermarket parts and services. Exterran Corporation is headquartered in Houston, Texas, and operates in approximately 30 countries

Extraction Oil & Gas, Inc. (NasdaqGS:XOG) Denver-based Extraction Oil & Gas, Inc is an independent energy exploration and development company focused on exploring, developing and producing crude oil natural gas and NGLs primarily in the Wattenberg Field in the Denver-Julesburg Basin of Colorado.

Exxon Mobil Corp. (NYSE:XOM) the largest publicly traded international oil and gas company, uses technology and innovation to help meet the world's growing energy needs. ExxonMobil holds an industry-leading inventory of resources and is one of the world's largest integrated refiners, marketers of petroleum products and chemical manufacturers. Natural Gas

Fieldpoint Petroleum Corp. (NYSE MKT:FPP) is engaged in oil and natural gas exploration, production and acquisition, primarily in Louisiana, New Mexico, Oklahoma, Texas and Wyoming.

FREEHOLD ROYALTIES LTD. (TSX:FRU.TO) is a dividend-paying oil and gas company based in Calgary, Alberta. Our royalty interests are a major contributor to our operating and financial performance and are not subject to expenses such as operating and capital costs. Our assets generate income from crude oil, natural gas, natural gas liquids, and potash. Growth is achieved through ongoing development activity on our extensive land base spanning approximately three million gross acres, and through acquisitions. Freehold has no employees. Day-to-day operations are managed by a wholly owned subsidiary of Rife Resources Ltd.

Freeport-McMoRan Inc. (NYSE:FCX) is a premier U.S.-based natural resources company with headquarters in Phoenix, Arizona. FCX operates large, long-lived, geographically diverse assets with significant proven and probable reserves of copper, gold, molybdenum, cobalt, oil and natural gas. FCX has a dynamic portfolio of operating, expansion and growth projects in the copper industry. FCX is the world's largest publically traded copper producer, the world's largest producer of molybdenum and a significant gold, oil and natural gas producer. FCX's portfolio of oil and natural gas assets includes significant oil production facilities and growth potential in the Deepwater Gulf of Mexico (GOM), established oil production onshore and offshore California, large onshore natural gas resources in the Haynesville shale play in Louisiana, natural gas production from the Madden area in central Wyoming, and a position in the Inboard Lower Tertiary/Cretaceous natural gas trend located onshore in South Louisiana.

Gas Natural, Inc. (NYSE MKT:EGAS) a holding company, distributes and sells natural gas to end-use residential, commercial, and industrial customers. It distributes natural gas to approximately 69,000 customers through regulated utilities operating in Montana, Ohio, Pennsylvania, Maine, North Carolina and Kentucky. The Company's other operations include interstate pipeline, natural gas production, and natural gas marketing. The Company's Montana public utility was originally incorporated in 1909. Its strategy for growth is to expand throughput in its markets, while looking for acquisitions that are either adjacent to its existing utilities or in under saturated markets.

Gas2Grid Limited (ASX:GGX.AX) engages in the exploration of oil and natural gas in the Philippines and France.

Gastar Exploration, Ltd. (NYSE MKT:GST) is an independent energy company engaged in the exploration, development and production of oil, condensate, natural gas and natural gas liquids in the United States. Gastar's principal business activities include the identification, acquisition, and subsequent exploration and development of oil and natural gas properties with an emphasis on unconventional reserves, such as shale resource plays.

Gear Energy Ltd. (TSX:GXE.TO) engages in acquiring, exploring, and developing petroleum and natural gas properties and assets in east Central Alberta and west Central Saskatchewan. The company is headquartered in Calgary, Canada.

Genie Energy Ltd. (NYSE:GNE) is comprised of two operating divisions, Genie Retail Energy (GRE) and Genie Oil and Gas (GOGAS). GRE operates retail energy providers and brokerage and marketing services. GRE's retail energy providers market electricity and natural gas to residential and commercial customers in deregulated markets in the United States. GOGAS is a global oil and gas exploration company operating an exploratory program in Northern Israel.

GeoGlobal Resources Inc. (OTC:GGLR) headquartered in Calgary, Alberta, Canada is a U.S. publicly traded oil and gas company which, through its subsidiaries is engaged in the pursuit of petroleum and natural gas in high exploration targets through exploration and development in India and Colombia.

GEOPETRO RESOURCES COMPANY (OTC:GEOR) is an independent oil and natural gas company headquartered in San Francisco, California. GeoPetro currently has projects in the United States and Australia. GeoPetro has developed an oil and gas property in its Madisonville Field Project in Texas. Elsewhere, GeoPetro has a geographically-diversified portfolio of exploratory and appraisal prospects.

Georox Resources Inc. (TSX:GXR.V) is a public oil and natural gas exploration, exploitation and development company focusing on conventional oil and gas reservoirs in Western Canada. Georox will use its experience to develop, acquire and drill assets with potential for primary and secondary recovery.

Geospatial Holdings, Inc. (OTC:GSPH) utilizes integrated technologies to determine the accurate location and position of underground pipelines, conduits and other underground infrastructure data allowing Geospatial to create accurate three-dimensional (3D) digital maps and models of underground infrastructure. Geospatial's solution provides innovate technologies to accurately map Oil & Gas underground infrastructure including Oil & Gas transmission, gathering, distribution and production facilities. Geospatial's project managers are specialists and technological advancements in data acquisition are specialists in current regulations and developments in both the Oil & Gas industries including natural gas shale plays, green energy initiatives, and technical advancements. In addition to x,y,z underground pipeline mapping, Geospatial locates all crossing lines, valves fittings and other prominent features; we provide geo-referenced video of all above ground features; and we integrate all acquired GIS data with existing AutoCAD drawings of wells and compressor stations.

Greenfields Petroleum Corporation (TSX:GNF.V) is a junior oil and natural gas company focused on the development and production of proven oil and gas reserves principally in the Republic of Azerbaijan. The Company plans to expand its oil and gas assets through further farm-ins, and acquisitions of Production Sharing Agreements from foreign governments containing previously discovered but under-developed international oil and gas fields, also known as "greenfields".

Gulfport Energy Corporation (NasdaqGS:GPOR) is an Oklahoma City-based independent oil and natural gas exploration and production company with its principal producing properties located in the Utica Shale of Eastern Ohio and along the Louisiana Gulf Coast. In addition, Gulfport holds a sizeable acreage position in the Alberta Oil Sands in Canada through its 25% interest in Grizzly Oil Sands ULC.

Gulfslope Energy (OTC:GSPE) is an independent oil and natural gas company focused on exploring offshore U.S. Gulf of Mexico.

Hess Corporation (NYSE: HES) is a leading global independent energy company engaged in the exploration and production of crude oil and natural gas.

High Arctic Energy Services Inc (TSX: HWO.TO) principal focus is to provide drilling and specialized well completion services, equipment rentals and other services to the oil and gas industry. High Arctic's largest operation is in Papua New Guinea where it provides drilling and specialized well completion services and supplies rig matting, camps and drilling support equipment on a rental basis. The Canadian operation provides snubbing services, nitrogen supplies and equipment on a rental basis to a large number of oil and natural gas exploration and production companies operating in Western Canada.

Hillcrest Petroleum Ltd.(TSX:HRH.V) headquartered in Houston Texas, is a publicly traded independent oil and gas production company. Hillcrest is currently producing and selling oil and natural gas from onshore wells located in Newton County Texas. Upon formal closing of the recently announced joint venture with a private Alberta Company, Hillcrest will add production of oil and gas from the Western Canada assets included in the joint venture. Hillcrest Petroleum Ltd. is focused on adding, creating and increasing value through the acquisition, development and production of conventional oil and gas assets in the United States and Canada. The Company's business plan in any acquisition or asset development is to be the operator of the asset or to hold a majority working interest where available.

Hong Kong and China Gas Co. (Towngas) (OTC:HOKCY; HongKong: 0003.HK) Founded in 1862, The Hong Kong and China Gas Company Limited (Towngas) was Hong Kong's first public utility. Today, we are one of the largest energy suppliers in Hong Kong, operating with world-class corporate management and leading-edge business practices. For the past years, Towngas has been growing with Hong Kong, evolving from the simple gas company supplying fuel for street lamps to our current leading position in the energy industry in the greater China region.

Houston American Energy Corp (NYSE MKT:HUSA) is an independent energy company with interests in oil and natural gas wells and prospects. The Company's business strategy includes a property mix of producing and non-producing assets with a focus on Colombia, Texas and Louisiana.

Husky Energy Inc. (TSX:HSE.TO) is one of Canada's largest integrated energy companies. It is headquartered in Calgary, Alberta, Canada. Husky operates in Western and Atlantic Canada, the United States and the Asia Pacific Region, with Upstream and Downstream business segments. The Company's conventional oil and natural gas assets, heavy oil production and upgrading, and transportation infrastructure in Western Canada supports major growth opportunities in the Asia Pacific Region, the Oil Sands and the Atlantic Region. Upstream includes the exploration, development and production of crude oil, bitumen and natural gas. Downstream operations include commodity marketing, pipeline transportation and storage, upgrading and refining crude oil, power co-generation and marketing gasoline, diesel, jet fuel, asphalt, ethanol and related products in Canada and the United States.

IGas Energy Plc (LSE:IGAS.L) is a leading British oil and natural gas explorer and developer. IGas has played a key role in Britain's onshore energy production; safely exploring, developing and producing onshore oil and gas at our sites for over three decades. Our management and technical teams have many years of experience in onshore energy production and most live and work in the communities in which we operate. IGas is extremely well positioned for the future as we move closer to unlocking Britain's untapped unconventional oil and gas resources.

Imperial Oil Limited (TSX:IMO.TO; NYSE MKT:IMO) After more than a century, Imperial continues to be an industry leader in applying technology and innovation to responsibly develop Canada's energy resources. As Canada's largest petroleum refiner, a major producer of crude oil and natural gas, a key petrochemical producer and a leading fuels marketer from coast to coast, our company remains committed to high standards across all areas of our business.

International Frontier Resources Corp. (TSX:IFR.V) is a Canadian publicly traded company with a demonstrated track record of advancing oil and gas projects. Through its Mexican subsidiary, Petro Frontera S.A.P.I de CV (Frontera) and strategic joint ventures, it is advancing the development of petroleum and natural gas assets in Mexico.

Ironhorse Oil & Gas Inc. (TSX:IOG.V) a junior oil and natural gas company, engages in the exploration, development, and production of petroleum and natural gas reserves in Western Canada.

Isramco Inc. (NasdaqCM:ISRL) is an independent oil and natural gas company engaged in the exploration, development and production of oil and natural gas properties located onshore in the United States and ownership of various royalty interests in oil and gas concessions located offshore Israel. The Company also operates a well service company that provides well maintenance, workover services, well completion and recompletion services. Our properties are primarily located in Texas, New Mexico and Oklahoma. We also act as the operator of a certain number of these properties. Historically, we have grown through acquisitions, with a focus on properties within our core operating areas that we believe have significant development and exploration opportunities and where we can apply our technical experience and economies of scale to increase production and proved reserves, while lowering lease operating costs. Isramco, Inc. together with its subsidiaries, engages in the acquisition, development, production, and exploration of oil and natural gas properties in the United States and Israel.

Jones Energy, Inc. (NYSE:JONE) is an independent oil and natural gas company engaged in the development and acquisition of oil and natural gas properties in the Anadarko and Arkoma basins of Texas and Oklahoma.

Just Energy Group, Inc. (TSX:JE.TO; NYSE:JE) is a leading consumer company specializing in electricity and natural gas commodities, energy efficiency solutions, and renewable energy options. With offices located across the United States, Canada, the United Kingdom, Germany, Ireland and Japan, Just Energy serves approximately 1.7 million residential and commercial customers providing homes and businesses with a broad range of energy solutions that deliver comfort, convenience and control. Just Energy Group Inc. is the parent company of Amigo Energy, Green Star Energy, Hudson Energy, EdgePower Inc., Tara Energy and terrapas

Kelt Exploration Ltd. (TSX:KEL.TO) is an oil and gas company based in Calgary, Alberta, Canada. The company focuses on exploration, development and production of crude oil and natural gas resources, primarily in west central Alberta and northeastern British Columbia

KEYERA Corp. (TSX:KEY.TO) operates one of the largest natural gas midstream businesses in Canada . Its business consists of natural gas gathering and processing as well as the processing, transportation, storage and marketing of Natural Gas Liquids (NGLs), the production of iso-octane and crude oil midstream activities. Keyera's gas processing plants and associated facilities are strategically located in the west central, foothills and deep basin natural gas production areas of the Western Canada Sedimentary Basin. Its NGL and crude oil infrastructure, including pipelines, terminals and processing and storage facilities, as well as its iso-octane facility, are located in Edmonton and Fort Saskatchewan, Alberta , a major North American NGL hub. Keyera markets propane, butane, condensate and iso-octane to customers in Canada and the United States

KFG Resources Ltd (TSX:KFG.V) engages in the exploration and production of crude oil and natural gas in the United States. It develops onshore oil and gas reserves located in Concordia and Catahoula parishes, Louisiana; Adams, Jefferson, and Wilkinson counties, Mississippi; and Comanche County, Kansas.

Kinder Morgan Inc. (NYSE:KMI) is the largest energy infrastructure company in North America. We own an interest in or operate approximately 84,000 miles of pipelines and approximately 165 terminals. Our pipelines transport natural gas, refined petroleum products, crude oil, carbon dioxide (CO2) and more. We also store or handle a variety of products and materials at our terminals such as gasoline, jet fuel, ethanol, petroleum coke and steel.

Kodiak Energy, Inc (OTC:KDKN) together with its subsidiaries, explores for, develops, produces, and sells oil and natural gas in the United States and Canada. It owns interests in Cougar Trout Properties, Alberta; First Nations Joint Venture Project, Alberta; and Lucy, British Columbia, as well as acquired a 100% interest in 55,000 acres of property located in northeast New Mexico.

Lakes Oil NL (ASX:LKO.AX) is the oldest Australian oil and natural gas explorer still operating in the country. The company, together with its subsidiaries, invests in and explores for hydrocarbon properties in Australia and the United States.

Laredo Petroleum, Inc. (NYSE: LPI) is an independent energy company with headquarters in Tulsa, Oklahoma. Laredo's business strategy is focused on the acquisition, exploration and development of oil and natural gas properties primarily in the Permian Basin in West Texas.

Legacy Reserves LP (NasdaqGS: LGCY) is a master limited partnership headquartered in Midland, Texas, focused on the acquisition and development of oil and natural gas properties primarily located in the Permian Basin, Mid-Continent and Rocky Mountain regions of the United States.

Leucrotta Exploration Inc. (TSX:LXE.V) is an oil and natural gas company, actively engaged in the acquisition, development, exploration, and production of oil and natural gas reserves in northeastern British Columbia, Canada.

Lion Energy Ltd. (ASX:LIO.AX) is an ASX listed oil & gas exploration & production company focused on Indonesia, where it has been operating for over fifteen years.

Liquefied Natural Gas Limited (ASX:LNG.AX) is an Australian public company based in Perth, Western Australia. Our business is to bring a dynamic concept of mid-scale liquefied natural gas ("LNG") projects to the international energy market.

Lucas Energy, Inc. (NYSE MKT:LEI) is engaged in the development of crude oil and natural gas in the Austin Chalk and Eagle Ford formations in South Texas.

Madalena Energy (TSX:MVN.V) is an independent, Canadian-based, international and domestic upstream oil and gas company whose main business activities include exploration, development and production of crude oil, natural gas liquids and natural gas. Madalena holds a large land position in Argentina and efficiently executes full cycle operations across all aspects of its oil and gas business.

Marine Petroleum Trust (NasdaqCM: MARPS) operates as a royalty trust in the United States. It has overriding royalty interests in oil and natural gas leases located in the Central and Western areas of the Gulf of Mexico off the coasts of Louisiana and Texas. Marine Petroleum Trust was founded in 1956 and is based in Dallas, Texas.

MarkWest Energy Partners, LP (NYSE:MPLX) a wholly owned subsidiary of MPLX LP (NYSE: MPLX), is engaged in the gathering, processing, and transportation of natural gas; the transportation, fractionation, storage and marketing of NGLs; and the gathering and transportation of crude oil.

Martin Midstream Partners L.P. (NasdaqGS:MMLP) is a publicly traded limited partnership with a diverse set of operations focused primarily in the United States Gulf Coast region. The Partnership's primary business lines include: (1) terminalling, storage and packaging services for petroleum products and by-products; (2) natural gas liquids transportation and distribution services and natural gas storage; (3) sulfur and sulfur-based products processing, manufacturing, marketing and distribution; and (4) marine transportation services for petroleum products and by-products.

MasTec, Inc. (NYSE:MTZ) is a leading infrastructure construction company operating mainly throughout North America across a range of industries. The Company's primary activities include the engineering, building, installation, maintenance and upgrade of energy, utility and communications infrastructure, such as: electrical utility transmission and distribution; natural gas and petroleum pipeline infrastructure; wireless, wireline and satellite communications; power generation, including renewable energy infrastructure; and industrial infrastructure.

Matador Resources Corp. (NYSE: MTDR) is an independent energy company engaged in the exploration, development, production and acquisition of oil and natural gas resources in the United States, with an emphasis on oil and natural gas shale and other unconventional plays. Its current operations are focused primarily on the oil and liquids-rich portion of the Wolfcamp and Bone Spring plays in the Permian (Delaware) Basin in Southeast New Mexico and West Texas. Matador also operates in the Eagle Ford shale play in South Texas and the Haynesville shale and Cotton Valley plays in Northwest Louisiana and East Texas.

Melbana Energy (ASX:MAY.AX) an independent oil and gas company, explores for, appraises, and develops oil and gas, methanol, and LNG properties. MEO Australia Limited is an Australian ASX listed, independent oil and gas company that has a portfolio of exploration, appraisal and development stage opportunities in Cuba, New Zealand and on the North West Shelf, Ashmore Cartier and Bonaparte Gulf regions in Australia. Formerly MEO Australia.

Metalore Resources Ltd (TSX:MET.V) has been actively engaged in the exploration and development of precious metals and hydrocarbons throughout Canada (and elsewhere) for over 50 years and is the leading inland producer of natural gas from the Silurian formation in Ontario.

Metgasco Limited (ASX:MEL.AX) is a petroleum (oil and gas) exploration and production company, listed on the Australian Stock Exchange (MEL). Our business is finding, producing, marketing and delivering oil and gas from natural oil and gas reserves, both conventional and unconventional. Since listing in 2004, Metgasco has concentrated its exploration efforts in the Clarence Moreton Basin, in the north east corner of New South Wales.

MetroGAS S.A. (OTC:MGSBF) operates as a natural gas distribution company in Argentina. The company distributes natural gas through pipelines. It serves 2.3 million customers, including residential, industrial, and commercial customers, as well as governmental entities, power plants, and suppliers and dealers in compressed natural gas. The company was founded in 1992 and is based in Buenos Aires, Argentina. MetroGAS S.A. operates as a subsidiary of Gas Argentino S.A.

Mexco Energy Corporation (NYSE MKT:MXC) a Colorado corporation, is an independent oil and gas company located in Midland, Texas engaged in the acquisition, exploration and development of oil and gas properties. Mexco focuses primarily on the exploration for and development primarily of natural gas reserves and secondarily oil reserves.

MGE Energy, Inc. (NasdaqGS:MGEE) is an investor-owned public utility holding company headquartered in the state capital of Madison, Wis. It is the parent company of Madison Gas and Electric, which generates and distributes electricity in Dane County, Wis., and purchases and distributes natural gas in seven south-central and western Wisconsin counties.

Mount Dakota Energy Corp. (TSX:MMO.V) engages in the acquisition, development, and production of petroleum and natural gas properties in Canada.

Murphy Oil CP Holding (NYSE:MUR) is a global independent oil and natural gas exploration and production company, with proved reserves of 756 million barrels of oil equivalent at year-end 2014. The Company`s diverse resources base includes offshore production in South East Asia, Canada and Gulf of Mexico; as well as, North American onshore plays in the Eagle Ford Shale and Montney.

National Fuel Gas Co. (NYSE:NFG) is an integrated energy company comprised of the following five operating segments: Exploration and Production, Pipeline and Storage, Gathering, Utility, and Energy Marketing.

National Grid plc (NYSE:NGG: LSE:NG.L) transmits and distributes electricity and gas. The company operates through UK Electricity Transmission, UK Gas Transmission, UK Gas Distribution, and US Regulated segments. The UK Electricity Transmission segment owns and operates high voltage electricity transmission networks in Great Britain. The UK Gas Transmission segment owns gas transmission network in Great Britain and liquefied natural gas (LNG) storage facilities in the United Kingdom. The UK Gas Distribution segment operates gas distribution system in Great Britain. National Grid US: National Grid is an electricity and natural gas delivery company that connects nearly 7 million customers to vital energy sources through its networks in New York, Massachusetts and Rhode Island. It is the largest distributor of natural gas in the Northeast. Through its U.S. Connect21 strategy, National Grid is transforming its electricity and natural gas networks to support the 21st century digital economy with smarter, cleaner, and more resilient energy solutions. Connect21 is vital to our communities' long-term economic and environmental health and aligns with regulatory initiatives in New York (REV:Reforming the Energy Vision) and Massachusetts (Grid Modernization).

Natural Gas Services Group Inc. (NYSE:NGS) is a leading provider of small to medium horsepower, wellhead compression equipment to the natural gas industry with a primary focus on the non-conventional gas and oil industry. The Company manufactures, fabricates, rents, sells and maintains natural gas compressors and flare systems for gas and oil production and plant facilities. NGS is headquartered in Midland, Texas with fabrication facilities located in Tulsa, Oklahoma and Midland, Texas and service facilities located in major gas and oil producing basins in the U.S.

NEW FORTRESS ENERGY LLC (NasdaqGS: NFE) is a global energy infrastructure company founded to help accelerate the world's transition to clean energy. The company funds, builds and operates natural gas infrastructure and logistics to rapidly deliver fully integrated, turnkey energy solutions that enable economic growth, enhance environmental stewardship and transform local industries and communities. New Fortress Energy is majority-owned by a fund managed by an affiliate of Fortress Investment Group.

New Jersey Resources Corp. (NYSE:NJR) is a Fortune 1000 company that provides safe and reliable natural gas and clean energy services, including transportation, distribution and asset management.

Newfield Exploration Company (NYSE:NFX) is an independent energy company engaged in the exploration, development and production of crude oil, natural gas and natural gas liquids. We are focused on North American resource plays and our principal areas of domestic operation include the Mid-Continent, the Rocky Mountains and onshore Texas.

New Western Energy Corp. (OTC:NWTR) an oil and gas and mineral exploration and production company with current projects located in Kansas and Montana. Our principal business is in the acquisition, exploration and development of, and production from oil, gas and mineral properties. We plan to explore new oil and natural gas wells and continue on recovery from stripper wells. A stripper well or "marginal well" is an oil well that is nearing the end of its economical life. Oil wells are generally classified as stripper wells when they produce ten barrels per day or less for any twelve month period. We plan to acquire working interests in oil and natural gas production companies in the United States that are located in oil and gas producing areas. We believe that there are opportunities in these areas for the development of oil and gas reserves. Such new reserves might come from the development of existing but as yet undeveloped reserves as well as from future success in exploration.

New Zealand Energy Corp. (TSX:NZ.V) focused on the production, development and exploration of oil and natural gas prospects in New Zealand.

Nisource Inc. (NYSE:NI) is one of the largest fully-regulated utility companies in the United States, serving natural gas customers and electric customers across seven states through its local Columbia Gas and NIPSCO brands. Based in Merrillville, Indiana, NiSource's employees are focused on safely delivering reliable and affordable energy to our customers and communities we serve. NiSource has been designated a World's Most Ethical Company by the Ethisphere Institute since 2012 and is a member of the Dow Jones Sustainability - North America Index.

Noble Energy Inc (NYSE:NBL) is a global independent oil and natural gas exploration and production company. The company's diverse resource base includes positions in four premier unconventional U.S. onshore plays - the DJ Basin, Eagle Ford Shale, Delaware Basin, and Marcellus Shale - and offshore in the U.S. Gulf of Mexico, Eastern Mediterranean and West Africa. Driven by its purpose, Energizing the World, Bettering People's Lives®, the company is committed to safely and responsibly providing energy to the world while positively impacting the lives of our stakeholders.

North American Energy Partners Inc. (NYSE:NOA) is the premier provider of heavy construction and mining services in Canada. For more than 50 years, NAEP has provided services to large oil, natural gas and resource companies, with a principal focus on the Canadian oil sands. The Company maintains one of the largest independently owned equipment fleets in the region.

Northland Power Inc. (TSX:NPI.TO; NPI-PA.TO) is an independent power producer founded in 1987, and publicly traded since 1997. Northland develops, builds, owns and operates facilities that produce 'clean' (natural gas) and 'green' (wind, solar, and hydro) energy, providing sustainable long-term value to shareholders, stakeholders, and host communities

Northwest Natural Gas Co. (NYSE:NWN) is headquartered in Portland, Ore., and provides natural gas service to residential, commercial, and industrial customers through 14,000 miles of mains and service lines in western Oregon and southwestern Washington. It is the largest independent natural gas utility in the Pacific Northwest. NW Natural and its subsidiaries currently own and operate underground gas storage facilities with designed storage capacity of approximately 31 Bcf in Oregon and California.

Northwestern Corp. (NYSE:NWE) provides electricity and natural gas in the Upper Midwest and Northwest, serving customers in Montana, South Dakota and Nebraska.

NuVista Energy Ltd. (TSX:NVA.TO) is an oil and natural gas company actively engaged in the exploration for, and the development and production of, oil and natural gas reserves in Western Canadian Sedimentary Basin. NuVista's primary focus is on the scalable and repeatable condensate-rich Montney formation in the Wapiti area of the Alberta Deep Basin. This play has the potential to create significant shareholder value due to the high-value condensate volumes associated with the natural gas production and the large scope of this resource play.

OASIS MIDSTREAM PARTNERS LP (NYSE:OMP) is a growth-oriented, fee-based master limited partnership initially formed by Oasis Petroleum to own, develop, operate and acquire a diversified portfolio of midstream assets in North America that are integral to the oil and natural gas operations of Oasis Petroleum and strategically positioned to capture volumes from other producers. Oasis Midstream's initial assets are located in the Williston Basin area of North Dakota and Montana.

Oil Search Limited (ASX:OSH.AX) is an oil and gas exploration and development company which was established in Papua New Guinea (PNG) in 1929. Oil Search has interests in, and operates all of, PNG's currently producing oil fields. Following the successful delivery of the PNG LNG Project in 2014, Oil Search is now working closely with its co-venture partners on the next phase of LNG development in PNG, focused on commercialising existing discovered gas resources.

One Gas Inc (NYSE:OGS) provides natural gas distribution services to customers in Oklahoma, Kansas and Texas. ONE Gas is one of the largest publicly traded, 100 percent regulated, natural gas utilities in the United States. ONE Gas is headquartered in Tulsa, Okla.

Oneok Inc. (NYSE:OKE) is the general partner and as of Sept. 30, 2015, owns 41.2 percent of ONEOK Partners, L.P. (OKS), one of the largest publicly traded master limited partnerships, which owns one of the nation's premier natural gas liquids (NGL) systems, connecting NGL supply in the Mid-Continent, Permian and Rocky Mountain regions with key market centers and is a leader in the gathering, processing, storage and transportation of natural gas in the U.S. ONEOK is a FORTUNE 500 company and is included in Standard & Poor's (S&P) 500 Stock Index.

Oneok Partners LP (NYSE:OKS) is one of the largest publicly traded master limited partnerships and owns one of the nation's premier natural gas liquids (NGL) systems, connecting NGL supply in the Mid-Continent, Permian and Rocky Mountain regions with key market centers and is a leader in the gathering, processing, storage and transportation of natural gas in the U.S. Its general partner is a wholly owned subsidiary of ONEOK, Inc., a pure-play publicly traded general partner, which owns 41.2 percent of the overall partnership interest.

ORCA EXPLORATION GROUP INC. (TSX:ORC-B.V; TSX:ORC-A.V) is an international public company engaged in natural gas exploration, development and supply in Tanzania through its wholly-owned subsidiary, PAET, as well as oil and gas appraisal in Italy.

Origin Energy Limited (ASX:ORG.AX) an integrated energy company, engages in oil and gas exploration and production, and electricity business primarily in Australia and New Zealand. The company operates through Energy Markets, Exploration & Production, and LNG segments.

Pacific Exploration & Production Corp. (TSX:PEN.TO; Colombia:PREC) is a Canadian public company and a leading explorer and producer of natural gas and crude oil, with operations focused in Latin America . The Company has a diversified portfolio of assets with interests in more than 85 exploration and production blocks in seven countries including Colombia, Peru, Guatemala, Brazil, Guyana, Papua New Guinea, Mexico and Belize. The Company's strategy is focused on sustainable growth in production & reserves and cash generation. Pacific Exploration & Production is committed to conducting business safely, in a socially and environmentally responsible manner.

Painted Pony Petroleum Ltd. (TSX:PPY.TO) is a publicly-traded natural gas corporation based in Western Canada. The Corporation is primarily focused on the development of natural gas and natural gas liquids from the Montney formation in northeast British Columbia.

Pan Orient Energy Corp. (TSX:POE.V) is a Calgary, Alberta based oil and natural gas exploration and production company with operations currently located onshore Thailand and Indonesia and in Western Canada.

Panhandle Oil & Gas, Inc. (NYSE: PHX) is engaged in the exploration for and production of natural gas and oil. The Company's oil and gas holdings, including its mineral acreage and its interests in producing wells, both working interests and royalty interests, are centered in Oklahoma.

Paramount Resources Ltd. (TSX:POU.TO) is an independent, publicly traded, Canadian corporation that explores for and develops conventional petroleum and natural gas prospects, pursues longer-term non-conventional exploration and pre-development projects and holds investments in other entities. The Company's properties are primarily located in Alberta, British Columbia and the Northwest Territories.

Parsley Energy Inc. (NYSE: PE) is an independent oil and natural gas company with operations in the Permian Basin, where we develop unconventional oil and natural gas reserves. As we efficiently and responsibly grow reserves, production, and cash flow by developing our liquids rich resource base, we seek to create value for shareholders, employees, energy consumers, and the communities in which we work. Over the past several years we have grown - primarily through the drill bit - from a two-person start-up to a large-scale operation that operates several hundred wells. With a substantial inventory of vertical and horizontal drilling locations in the prolific core of the Midland Basin, we look forward to continued growth at superior rates of return.

Patterson-UTI Energy Inc (NasdaqGS:PTEN) subsidiaries provide onshore contract drilling and pressure pumping services to exploration and production companies in North America. Patterson-UTI Drilling Company LLC and its subsidiaries operate land-based drilling rigs in oil and natural gas producing regions of the continental United States and western Canada. Universal Pressure Pumping, Inc. and Universal Well Services, Inc. provide pressure pumping services primarily in Texas and the Appalachian region.

PDC Energy, Inc. (NasdaqGS:PDCE) is a domestic independent exploration and production company that produces, develops, acquires and explores for crude oil, natural gas and NGLs with primary operations in the Wattenberg Field in Colorado and in the Utica Shale in southeastern Ohio. The Wattenberg Field operations are focused on the liquid-rich horizontal Niobrara and Codell plays and the Ohio operations are focused in the condensate and wet gas portion of the Utica Shale play. PDC is included in the S&P SmallCap 600 Index and the Russell 2000 Index of Companies.

Pengrowth Energy Corp. (TSX:PGF.TO; NYSE:PGH) is a dividend-paying, intermediate Canadian producer of oil and natural gas, headquartered in Calgary, Alberta. Pengrowth's assets include the Cardium light oil, Lindbergh thermal and Swan Hills light oil projects.

Penn Virginia Corp. (OTC:PVAC) is an independent oil and gas company engaged in the exploration, development and production of oil, natural gas liquids and natural gas in various domestic onshore regions of the United States, with a primary focus in the Eagle Ford Shale in south Texas.

Penn West Petroleum Ltd. (TSX:PWT.TO; NYSE:PWE) is one of the largest conventional oil and natural gas producers in Canada . Our goal is to be the company that redefines oil & gas excellence in western Canada. Based in Calgary, Alberta, Penn West operates a significant portfolio of opportunities with a dominant position in light oil in Canada on a land base encompassing approximately 4 million acres.

Permex Petroleum Corporation (CSE:OIL) is a uniquely positioned junior Oil & Gas company with assets and operations across the Permian Basin of west Texas and the Delaware Sub-Basin of south east New Mexico. The Company has a current focus on identifying, evaluating and acquiring oil and natural gas assets in North America and enhancing and developing its currently held oil and natural gas assets in Texas and New Mexico. The Company owns and operates on Private, State and Federal land.

Perpetual Energy Inc. (TSX:PMT.TO) is an oil and natural gas exploration, production and marketing company headquartered in Calgary, Alberta. Perpetual operates a diversified asset portfolio, including liquids-rich natural gas assets in the deep basin of west central Alberta, heavy oil and shallow natural gas in eastern Alberta, with longer term opportunities through undeveloped oil sands leases in northern Alberta.

Petrichor Energy Inc. (TSX:PTP.V) is an emerging oil and gas exploration company focused on acquiring, exploring and developing new oil and natural gas reserves in North and South America. The company has been developing its current properties, located in the southern United States, for the past three years. Petrichor Energy is growing its operations by implementing two primary objectives. The first is exploiting the potential of its low risk oil and gas fields in Texas and Mississippi. The second is to find new and highly prospective exploration projects in both North and South America - and to develop them into commercially feasible operations. By applying the latest geophysical and geological technologies when selectively drilling new wells, the company expects to increase its success ratio, as well as reduce the risk typically associated with oil and gas exploration.

Petro-Victory Energy Corp. (TSX:VRY.V) through its subsidiaries, engages in the petroleum and natural gas exploration, and other energy activities in Latin America.

Petrobras SA (NYSE:PBR) operate as an integrated energy company in these sectors: exploration and production, refining, marketing, transportation, petrochemicals, oil product distribution, natural gas, electricity, chemical gas, and biofuels.

PetroChina Co Ltd. (NYSE:PTR) is the largest oil and gas producer and distributor, playing a dominant role in the oil and gas industry in China. It is not only one of the companies with the biggest sales revenue in China, but also one of the largest oil companies in the world. PetroChina commits itself to becoming an international energy company with strong competitiveness and one of the major producers and distributors of petroleum and petrochemical products in the world. It engages in wide range of activities related to oil and natural gas, including: exploration, development, production and marketing of crude oil and natural gas; refining, transportation, storage and marketing of crude oil and oil products; the production and marketing of primary petrochemical products, derivative chemicals and other chemicals; transportation of natural gas, crude oil and refined oil, and marketing of natural gas. PetroChina, under the guidance of the concept of scientific development, is dedicated to implementing three strategies of resources, markets and internationalization. PetroChina is committed to accelerating the transformation of economic growth, improving the self-innovation capacity, establishing long-efficient mechanism of safety, environmental protection and energy conservation and creating a harmonious enterprise, in order to transform itself to an international energy company with strong competitiveness. China National Petroleum Corporation (CNPC) is the sole sponsor and controlling shareholder of PetroChina. It is a large petroleum and petrochemical corporate group, established in July 1998, in accordance with Plan for the Organizations Structure Reform of the State Council. CNPC is a large state-owned enterprise managed by the investment organs authorized by the state and State-owned Assets Supervision and Administration Commission.

Petrodorado Energy Ltd. TSX:PDQ.V) is engaged in petroleum and natural gas exploration and development activities in Colombia. Its head office is located in Calgary, Alberta, Canada.

Petrolympic Ltd. (TSX: PCQ.V; OTCQB: PCQRF) is a Canadian junior oil and gas company actively exploring for premium light crude oil and natural gas in North America. The Company is presently focused on its near-term conventional oil and natural gas production assets in the Gaspe Peninsula, Province of Quebec, Canada. The Company also holds natural gas assets in the Utica Fairway of Quebec and an 8,000+ acre asset in the oil-prolific Maverick Basin of Texas, USA. The land position in Quebec consists of 100% interest in 5 exploration permits over 239,296 acres (96,840 hectares), 30% interest in 36 exploration permits totaling 1,601,466 acres (648,093 hectares) and 12% interest in 19,768 acres (8,000 hectares). Petrolympic is targeting hydrothermal dolomite and naturally fractured hosted conventional light oil and natural gas in areas where hydrocarbon shows have been previously documented in geological outcrop sampling and coring programs together with its private joint venture partner Ressources et Energie Squatex Inc. The partnership has recently discovered a conventional gas reservoir, heavy oil and condensates in the Masse structure located in the Gaspe Peninsula.

PetroQuest Energy Inc. (NYSE:PQ) is an independent energy company engaged in the exploration, development, acquisition and production of oil and natural gas reserves in Texas, Oklahoma, Louisiana and the shallow waters of the Gulf of Mexico.

Peyto Exploration & Development Corp. (TSX:PEY.TO) is a natural gas weighted E & P that is committed to building value through the exploration and development of high quality gas properties.

PG&E Corporation (NYSE: PCG) is an energy-based holding company headquartered in San Francisco. It is the parent company of Pacific Gas and Electric Company. PG&E Corporation subsidiaries provide customers with public utility services, and services relating to the generation of energy, transmission of electricity and natural gas, generation of electricity, and the distribution of energy.

Piedmont Natural Gas Company (NYSE:PNY) is an energy services company primarily engaged in the distribution of natural gas to more than one million residential, commercial, industrial and power generation customers in portions of North Carolina, South Carolina and Tennessee, including customers served by municipalities who are wholesale customers. Our subsidiaries are invested in joint venture, energy-related businesses, including unregulated retail natural gas marketing, regulated interstate natural gas transportation and storage, and regulated intrastate natural gas transportation businesses.

Pine Cliff Energy Ltd. (TSX:PNE.TO) is an Alberta based natural gas company that is focused on acquiring and developing long life assets that are cash flow positive even in a low commodity price environment.

Plains All American Pipeline LP (NYSE:PAA) is a publicly traded master limited partnership that owns and operates midstream energy infrastructure and provides logistics services for crude oil, natural gas liquids ("NGL"), natural gas and refined products. PAA owns an extensive network of pipeline transportation, terminalling, storage and gathering assets in key crude oil and NGL producing basins and transportation corridors and at major market hubs in the United States and Canada. On average, PAA handles over 4.4 million barrels per day of crude oil and NGL on its pipelines. PAA is headquartered in Houston, Texas.

PrairieSky Royalty Ltd. (TSX:PSK.TO) s a royalty-focused company, generating royalty revenues as petroleum and natural gas are produced from its properties. PrairieSky has a diverse portfolio of properties that have a long history of generating free cash flow and that represent the largest and most concentrated independently-owned fee simple mineral title position in Canada.

Prairie Provident Resources Inc. (TSX:PPR:TO) is a Calgary-based company engaged in the exploration and development of oil and natural gas properties in Alberta. The Company's strategy is to grow organically in combination with accretive acquisitions of conventional oil prospects, which can be efficiently developed. Prairie Provident's operations are primarily focused at Wheatland and Princess in Southern Alberta targeting the Ellerslie and Lithic Glauc formation, along with an early stage waterflood project at Evi in the Peace River Arch. The Company also holds a large acreage position of approximately 240,000 net acres in the Utica shale in Quebec's Saint Lawrence lowlands. Prairie Provident protects its balance sheet through an active hedging program and manages risk by allocating capital to opportunities offering maximum shareholder returns.

PrimeEnergy Corp. (NasdaqCM:PNRG) is an independent oil and gas company actively engaged in acquiring, developing and producing oil and natural gas, and providing oilfield services, primarily in Texas, Oklahoma, West Virginia, New Mexico, Colorado and Louisiana.

Profire Energy Inc. (NasdaqCM:PFIE) assists energy production companies in the safe and efficient production and transportation of oil and natural gas. As energy companies seek greater safety for their employees, compliance with more stringent regulatory standards, and enhanced margins with their energy production processes, Profire Energy's burner management and chemical injection systems are increasingly becoming part of their solution. Profire Energy has offices in Lindon, Utah; Houston, Texas; Shelocta, Pennsylvania; Greeley, Colorado; and Spruce Grove, Alberta, Canada.

Public Service Enterprise Group Inc. (NYSE:PEG) through its subsidiaries, operates as an energy company primarily in the northeastern and Mid Atlantic United States.. It sells electricity, natural gas, emissions credits, and a series of energy-related products that are used to optimize the operation of the energy grid. The company also transmits electricity; and distributes electricity and gas to residential, commercial, and industrial customers, as well as invests in solar generation projects, and implements energy efficiency and demand response programs. In addition, it offers appliance services and repairs to customers. Public Service Enterprise Group Incorporated was founded in 1985 and is headquartered in Newark, New Jersey.

Puissant Industries, Inc. (OTC:PSSS) explores, develops, and produces oil and natural gas properties focusing on the onshore United States. The company holds oil and gas interests in the Raccoon Mountain, Wofford, Woodbine, and Rockholds Fields located in Clay and Whitley counties in Kentucky.

Questor Technology Inc. (TSX:QST.V) is an international environmental oilfield services provider founded in late 1994 and headquartered in Calgary, Alberta, Canada with a field office located in Grande Prairie, Alberta. The Company is focused on clean air technologies with activities in Canada, the United States, Europe and Asia. Questor designs and manufactures high combustion efficiency waste gas incinerators for sale or for use on a rental basis and also provides combustion-related oilfield services. The Company's proprietary incinerator technology destroys noxious or toxic hydrocarbon gases, which enables regulatory compliance, environmental protection, public confidence and reduced operating costs for customers. Questor is recognized for its particular expertise in the combustion of sour gas (H2S). The technology creates an opportunity to utilize the heat generated from efficient combustion which can be been used for water vapourization, process heat and power generation, through ClearPower Solutions (a subsidiary of Questor). While Questor's current customer base operates primarily in the crude oil and natural gas industry, the Company's combustion technology is applicable to other industries such as landfills, water and sewage treatment, tire recycling and agriculture.

Quintana Energy Services Inc. (NYSE: QES) is a growth-oriented provider of diversified oilfield services to leading onshore oil and natural gas exploration and production companies operating in both conventional and unconventional plays in all of the active major basins throughout the U.S. QES's primary services include: directional drilling, pressure pumping, pressure control and wireline services. The Company offers a complementary suite of products and services to a broad customer base that is supported by in-house manufacturing, repair and maintenance capabilities.

Range Resources Corporation (NYSE:RRC) is a leading U.S. independent oil and natural gas producer with operations focused in stacked pay projects in the Appalachia Basin. The Company pursues an organic growth strategy targeting high return, low-cost projects within its large inventory of low risk, development drilling opportunities. The Company is headquartered in Fort Worth, Texas.

Repsol (OTC:REPYY) an integrated energy company, engages in upstream and downstream activities worldwide. The company is involved in the exploration, development, and production of crude oil and natural gas; transportation of oil products, liquefied petroleum gas (LPG), and natural gas; refining and production of a range of oil products; and retail of oil products, oil derivatives, petrochemicals, LPG, and natural gas. It also engages in the generation, transportation, distribution, and supply of electricity.

Reserve Petroleum Co. (OTC:RSRV) engages in oil and natural gas exploration and development, and minerals management primarily in Texas, Oklahoma, Kansas, Arkansas, and South Dakota. The company was founded in 1931 and is based in Oklahoma City, Oklahoma.

Rex Energy Corporation (NasdaqGS:REXX) Headquartered in State College, Pennsylvania, Rex Energy is an independent oil and gas exploration and production company operating in the Appalachian and Illinois Basins within the United States. The company's strategy is to pursue its higher potential exploration drilling prospects while acquiring oil and natural gas properties complementary to its portfolio.

RGC Resources Inc. (NasdaqGM:RGCO) provides energy and related products and services to customers through its operating subsidiaries Roanoke Gas Company, RGC Midstream, LLC and RGC Ventures of Virginia, Inc.

RMP Energy Inc. (TSX:RMP.TO) is an Alberta-based crude oil and natural gas company actively engaged in the exploration, development, and production of crude oil and natural gas reserves in Western Canada. Our portfolio of high-quality assets is strategically positioned with solid growth potential. Our oil and gas exploration and production base is West Central Alberta's Ante Creek, Waskahigan, Grizzly, Kaybob and Pine Creek areas. We have also established land positions in Alberta's Ricinus area as well as Big Muddy in Saskatchewan. RMP's priority is a significant oil resource drilling program at Ante Creek and Waskahigan. RMP's leadership team possesses a wealth of experience and knowledge about operating large and small capitalized petroleum companies

Royal Dutch Pet ADR (NYSE:RDS-A; RDS-B) operates as an independent oil and gas company worldwide. It operates through Upstream and Downstream segments. The company explores for and extracts crude oil, natural gas, and natural gas liquids. It also converts natural gas to liquids to provide fuels and other products; markets and trades natural gas; extracts bitumen from mined oil sands and converts it to synthetic crude oil; and generates electricity from wind energy. In addition, the company engages in manufacturing, supplying, and shipping crude oil; selling fuels, lubricants, bitumen, and liquefied petroleum gas (LPG) for home, transport, and industrial use; converting crude oil into a range of refined products, including gasoline, diesel, heating oil, aviation fuel, marine fuel, lubricants, bitumen, sulphur, and LPG; producing and marketing petrochemicals, such as the raw materials for plastics, coatings, and detergents for industrial customers; and alternative energy business. Further, it trades hydrocarbons and other energy-related products; provides shipping services; and produces base chemicals comprising ethylene, propylene, and aromatics, as well as intermediate chemicals, such as styrene monomer, propylene oxide, solvents, detergent alcohols, ethylene oxide, and ethylene glycol. It sells fuels under the Shell V-Power brand. Royal Dutch Shell plc is headquartered in The Hague, the Netherlands.

Royale Energy Inc. (OTC:ROYL) is an independent exploration and production company focused on the acquisition, development, and marketing of natural gas. Incorporated under the laws of the State of California, Royale Energy owns and operates wells in the Sacramento and San Joaquin basins in California and in the U.S. Gulf Coast. It markets approximately 15,000,000 cubic feet of natural gas per day to its customers.

RPC Inc. (NYSE:RES) provides a broad range of specialized oilfield services and equipment primarily to independent and major oilfield companies engaged in the exploration, production and development of oil and natural gas properties throughout the United States, including the Gulf of Mexico, mid-continent, southwest, Appalachian and Rocky Mountain regions, and in selected international markets.

Sahara Energy Ltd. (TSX:SAH.V) is a junior oil and gas company focused on the acquisition, exploration, exploitation and development of oil and natural gas in western Canada.

Sanchez Energy Corporation (NYSE:SN) is an independent exploration and production company focused on the acquisition and development of U.S. onshore unconventional oil and natural gas resources, with a current focus on the Eagle Ford Shale in South Texas where we have assembled over 335,000 net acres.

SandRidge Energy, Inc (NYSE:SD) is an oil and natural gas exploration and production company headquartered in Oklahoma City, Oklahoma with its principal focus on developing high-return, growth-oriented projects in the Mid-Continent region of the United States. In addition, SandRidge owns and operates a saltwater gathering and disposal system and a drilling and related oil field services business.

SandRidge Mississippian Trust I (NYSE:SDT) owns royalty interests in oil and natural gas properties in the Mississippian formation in Alfalfa, Garfield, Grant and Woods counties in Oklahoma and is entitled to receive proceeds from the sale of production attributable to the royalty interests.

Santos Ltd (ASX.STO.AX) is one of the leading independent oil and gas producers in the Asia-Pacific region, supplying the energy needs of homes, businesses and major industries across Australia and Asia. Underpinned by a portfolio of high-quality liquefied natural gas (LNG), pipeline gas and oil assets, Santos seeks to deliver long-term value to shareholders.

SemGroup Corporation (NYSE:SEMG) is a publicly traded midstream service company providing the energy industry the means to move products from the wellhead to the wholesale marketplace. SemGroup provides diversified services for end users and consumers of crude oil, natural gas, natural gas liquids, refined products and asphalt. Services include purchasing, selling, processing, transporting, terminalling and storing energy.

Sempra Energy (NYSE:SRE) based in San Diego, is a Fortune 500 energy services holding company. The Sempra Energy companies' employees serve more than 32 million consumers worldwide. Sempra Energy's California utilities, San Diego Gas & Electric and SoCalGas, serve more than 20 million consumers. And its other businesses - Sempra U.S. Gas & Power and Sempra International - develop and operate critical energy infrastructure and provide gas and electricity services in North America and South America

Sensor Technologies Inc. (CSE:SENS) - formerly Mooncor Oil and Gas Corp - is a leading solutions provider to various sectors including the oil and gas industry. With non-intrusive technologies including fiber-optic sensors and electric field mapping EFM systems. Sensor Technologies Corp is able to accurately measure changes that could negatively impact our client's operations. SENS F.O. sensors are a non-invasive tool for monitoring pipeline defects in real time. consist of non-intrusive sensors, monitor & software. SENS's EFM monitoring of isolated pit formation & growth using a non-permanent modular design based on electrical resistance measurements, monitoring locations may be placed hundreds of feet away from the sensors. Software operates in continuous or scheduled reporting modes. SENS's latest tech, is its leak detection system, for use in application such as Pipe sections at remote facilities Monitoring of Military, Scientific installations for corrosive liquids in harsh environments , in tank farms, pipe sections, Water leak detection in data centers & buildings.

Serinus Energy Inc. (TSX:SEN.TO) is an international upstream oil and gas exploration and production company that owns and operates projects in Tunisia and Romania.

Seven Generations Energy Ltd. (TSX:VII.TO) is a low-cost, high-growth Canadian natural gas developer generating long-life value from its liquids-rich Kakwa River Project, located about 100 kilometres south of its operations headquarters in Grande Prairie, Alberta.

Sintana Energy Inc. (TSX:SEI.V) is engaged in petroleum and natural gas exploration and development activities in the Magdalena Basin, Colombia. The Company's exploration strategy is to acquire, explore, develop and produce superior quality assets with significant reserve potential. The Company's private participation interests in Colombia include 100% of the conventional and 30% of the unconventional resource in the 43,158 acre VMM-37 Block and a 15% carried private participation interest in the conventional and unconventional formations of the 154,909 acre VMM-4 Block. These interests are subject to all applicable regulatory and government approvals, including those of Colombia's National Hydrocarbon Agency (the ANH).

SM Energy Co (NYSE: SM) is an independent energy company engaged in the acquisition, exploration, development, and production of crude oil, natural gas, and natural gas liquids in onshore North America.

SMART SAND, INC. (NasdaqGS:SND) is a pure-play, low-cost producer of high-quality Northern White raw frac sand, which is a preferred proppant used to enhance hydrocarbon recovery rates in the hydraulic fracturing of oil and natural gas wells. Northern White raw frac sand, which is found predominantly in Wisconsin and limited portions of Minnesota and Illinois, is highly valued by oil and natural gas producers as a preferred proppant due to its favorable physical characteristics.

SOLARIS OILFIELD INFRASTRUCTURE, INC. (NYSE: SOI) manufactures and provides patented mobile proppant management systems that unload, store and deliver proppant at oil and natural gas well sites, and its systems are deployed in many of the most active oil and natural gas basins in the United States, including the Permian Basin, the Eagle Ford Shale and the SCOOP/STACK formation.

South Jersey Industries Inc. (NYSE:SJI) an energy services holding company based in Folsom, NJ, operates its business through two primary subsidiaries. South Jersey Gas, one of the nation`s fastest growing natural gas utilities, delivers clean, efficient natural gas and promotes energy efficiency to approximately 370,000 customers in southern New Jersey. SJI`s non-regulated businesses, under South Jersey Energy Solutions, promote efficiency, clean technology and renewable energy by developing, owning and operating on-site energy production facilities - including Combined Heat and Power, Solar, and District Heating and Cooling projects; acquiring and marketing natural gas and electricity for retail customers; providing wholesale commodity marketing and fuel supply management services; and offering HVAC and other energy-efficiency related services.

Southwest Gas Corp. (NYSE:SWX) provides natural gas service to more than 1.9 million customers in Arizona, Nevada, and California.

Southwestern Energy Company (NYSE:SWN) is an independent energy company whose wholly-owned subsidiaries are engaged in natural gas and oil exploration, development and production, natural gas gathering and marketing.

Sparton Resources Inc. (TSXV:SRI.V) an exploration and development stage company, focuses on the exploration and evaluation of properties in Canada and China. The company's primary projects are the Chebucto natural gas field located in the Sable Island area of offshore Nova Scotia; and the VanSpar vanadium and battery commissioning projects in China. It also provides contract drilling services.

Spectra Energy Corp (NYSE:SE) a FORTUNE 500 company, is one of North America's leading pipeline and midstream companies. Based in Houston, Texas, the company's operations in the United States and Canada include natural gas, natural gas liquids, and crude oil pipelines; natural gas storage; crude oil storage; as well as natural gas gathering, processing, and local distribution operations. Spectra Energy is the general partner of Spectra Energy Partners (SEP), one of the largest pipeline master limited partnerships in the United States and owner of the natural gas and crude oil assets in Spectra Energy's U.S. portfolio. Spectra Energy also has a 50 percent ownership in DCP Midstream, the largest producer of natural gas liquids and the largest natural gas processor in the United States. Spectra Energy has served North American customers and communities for more than a century.

Spectra Energy Partners, LP (NYSE:SEP) is a Houston-based, master limited partnership, formed by Spectra Energy Corp (NYSE: SE). SEP is one of the largest fee-based MLPs in North America and owns interests in pipelines and storage facilities that connect growing supply areas to high-demand markets for natural gas, natural gas liquids, and crude oil. These assets include transmission and gathering pipelines, natural gas storage, and crude oil storage

SSE plc (LSE:SSE.L) generates, transmits, distributes, and supplies electricity in the United Kingdom and Ireland. It also produces, stores, distributes, and supplies natural gas, as well as is involved in energy portfolio management activities. The company generates electricity from gas, oil, coal, water, and wind. It operates in three segments: Networks, Retail, and Wholesale. The company's electricity networks transmit and distribute electricity to approximately 3.7 million businesses, offices, and homes through approximately 130,000 kilometers of overhead lines and underground cables; and gas networks distribute gas to approximately 5.7 million homes, offices, and businesses through 75,000 kilometers of gas mains. It also supplies electricity and gas to approximately 9.1 million households and businesses under the SSE, Scottish Hydro, Southern Electric, SWALEC, Atlantic, and Airtricity brands. The company owns or has an ownership interest in approximately 11,665 megawatts of generation capacity. In addition, it provides street and highway lighting; designs, builds, owns, and operates networks for electricity, gas, water, and heat; network capacity, bandwidth, and data center services through 13,700 kilometers of fiber optic cable, leased lit fiber, and microwave radio networks, as well as 17 data centers; and water and sewerage services. Further, the company offers energy-related products and services, including home services, such as gas boiler, central heating and wiring maintenance and installation, telephone line rental, and calls and broadband services; supplying, installing, maintaining, and reading meters in the household, commercial, industrial, and generation sectors; and instrumentation engineering services. It was formerly known as Scottish and Southern Energy plc

Stone Energy Corporation (NYSE:SGY) is an independent oil and natural gas exploration and production company headquartered in Lafayette, Louisiana with additional offices in New Orleans, Houston and Morgantown, West Virginia. Stone is engaged in the acquisition, exploration, development and production of properties in the Gulf of Mexico and Appalachian basins.

Storm Resources Ltd. (TSX:SRX.V) acquires, explores, develops, and produces oil, natural gas, and natural gas liquids in Canada. It primarily owns interests in lands located in Umbach, as well as interests situated in Horn River Basin, Northeast British Columbia.

Strikewell Energy Corp. (TSX:SKK.V) engages in the exploration and production of petroleum and natural gas interests in Alberta, Canada

SugarBud Craft Growers Corp. (TSX:RRL.V) - formerly Relentless Resources Ltd - is a Calgary based emerging cannabis and oil and natural gas company engaged in the development, acquisition and production of cannabis and natural gas and crude oil reserves in Alberta.

Sundance Energy Australia Limited (ASX:SEA.AX) is an Australian-based, independent energy exploration company, with a wholly owned US subsidiary, Sundance Energy Inc., located in Denver, Colorado, USA. The Company is focused on the acquisition and development of large, repeatable oil and natural gas resource plays in North America. Current activities are focused in the Eagle Ford and Greater Anadarko Basins.

Sunset Pacific Petroleum Ltd. (TSX:SPK.V) since 2005 has been engaged in exploration, development and production of oil and natural gas mainly in Western Canada. The Company has recently changed its focus to The Middle East North Africa Region ("MENA") and on May 9, 2016 was awarded the Beni Khedache block (formerly known as the El Hamra block) in southern Tunisia on the border with Algeria.

Synergy Resources Corp. (NYSE MKT: SYRG) is a domestic oil and natural gas exploration and production company. Synergy's core area of operations is in the Wattenberg Field of the Denver-Julesburg Basin. The Denver-Julesburg Basin encompasses parts of Colorado, Wyoming, Kansas, and Nebraska. The Company's corporate offices are located in Denver, Colorado.

Tanager Energy Inc. (TSX: TAN.V) is an oil and natural gas and mineral exploration company headquartered in Calgary, Alberta, with executive offices in Houston, Texas.

Targa Resources Partners LP (NYSE:TRGP) is a publicly traded Delaware limited partnership formed in October 2006 by its parent, Targa Resources Corp., to own, operate, acquire and develop a diversified portfolio of complementary midstream energy assets. The Partnership is a leading provider of midstream natural gas and NGL services in the United States, with a growing presence in crude oil gathering and petroleum terminaling. The Partnership is engaged in the business of gathering, compressing, treating, processing and selling natural gas; storing, fractionating, treating, transporting and selling NGLs and NGL products, including services to LPG exporters; gathering, storing and terminaling crude oil; and storing, terminaling and selling refined petroleum products

TC Pipelines LP (NYSE:TCP) is a Delaware master limited partnership with interests in seven federally regulated U.S. interstate natural gas pipelines which serve markets in the Western, Midwestern and Eastern United States. The Partnership is managed by its general partner, TC PipeLines GP, Inc., a subsidiary of TransCanada Corporation.

TORC Oil & Gas Ltd. (TSX:TOG.TO) is a Calgary based company active in the acquisition, exploration, development and production of crude oil and natural gas in Western Canada.

Touchstone Exploration Inc. (TSX:TXP.TO) is a Calgary based company engaged in the business of acquiring interests in petroleum and natural gas rights, and the exploration, development, production and sale of petroleum and natural gas. Touchstone is currently active in onshore properties located in the Republic of Trinidad and Tobago.

Tourmaline Oil Corp. (TXS:TOU.TO) is a Canadian intermediate crude oil and natural gas exploration and production company focused on long-term growth through an aggressive exploration, development, production and acquisition program in the Western Canadian Sedimentary Basin.

Trans Energy Inc. (OTC:TENG) is a pure play Marcellus Shale producer that engages in the acquisition, exploration, development, exploitation, and production of oil and liquids-rich natural gas.

TransAlta Corporation (TSX:TA.TO; NYSE:TAC) is a power generation and wholesale marketing company focused on creating long-term shareholder value. TransAlta maintains a low-to-moderate risk profile by operating a highly contracted portfolio of assets in Canada, the United States and Australia. TransAlta's focus is to efficiently operate wind, hydro, natural gas facilities in order to provide customers with a reliable, low-cost source of power. For over 100 years, TransAlta has been a responsible operator and a proud contributor to the communities in which it works and lives. TransAlta has been selected by Sustainalytics as one of Canada's Top 50 Socially Responsible Companies since 2009 and is recognized globally for its leadership on sustainability and corporate responsibility standards by FTSE4Good.

TransAtlantic Petroleum Corp. (NYSE MKT:TAT;TSX:TNP.TO) is an international oil and natural gas company engaged in the acquisition, exploration, development and production of oil and natural gas. The Company holds interests in developed and undeveloped properties in Turkey, Albania and Bulgaria.

TransCanada Corp. (NYSE:TRP; TSX:TRP.TO) With more than 65 years' experience, TransCanada is a leader in the responsible development and reliable operation of North American energy infrastructure including natural gas and liquids pipelines, power generation and gas storage facilities. TransCanada operates a network of natural gas pipelines that extends more than 68,000 kilometres (42,100 miles), tapping into virtually all major gas supply basins in North America. TransCanada is one of the continent's largest providers of gas storage and related services with 368 billion cubic feet of storage capacity. A growing independent power producer, TransCanada owns or has interests in over 11,500 megawatts of power generation in Canada and the United States. TransCanada is developing one of North America's largest liquids delivery systems.

Traverse Energy Ltd. (TSX:TVL.V) is a publicly traded company engaged in the exploration, development and production of petroleum and natural gas in Alberta, Canada. Traverse Energy's current production consists of natural gas, oil and associated liquids. The Company aims to focus future growth opportunities in the exploration and development of natural gas and light oil.

Tribute Resources Inc. (TSX:TRB.V) primary focus is on adding value to shareholders by developing and maintaining a long-term interest in renewable energy projects and in market-based priced underground natural gas storage assets in Canada. Tribute's objective is to build a company capable of delivering and sustaining long-term per share growth by developing energy projects that will generate stable long-term cash flow when fully operational. Tribute's business plan is to build upon its current asset base to identify, permit, develop, and construct projects that meet its threshold return criteria. Tribute creates value by identifying project opportunities, providing the expertise to develop the projects and maintaining an interest in the completed assets to build long-term stable utility quality cash flow from a strong and diversified energy related asset base.

Trilogy Energy Corp. (TSX:TET.TO) is a petroleum and natural gas-focused Canadian energy corporation that actively develops, produces and sells natural gas, crude oil and natural gas liquids. Trilogy's geographically concentrated assets are primarily high working interest properties that provide abundant low-risk infill drilling opportunities and good access to infrastructure and processing facilities, many of which are operated and controlled by Trilogy.

U.S. Energy Corp. (NasdaqCM:USEG) is an independent exploration and production company focused on exploring, developing and producing oil and natural gas in the United States. Through numerous drilling ventures with proven operators, the Company has a diverse portfolio of oil and gas prospects located in the Williston Basin of North Dakota, the Eagle Ford shale and conventional plays in South Texas and onshore Gulf Coast.

UGI Corp. (NYSE:UGI) is a distributor and marketer of energy products and services. Through subsidiaries, UGI operates natural gas and electric utilities in Pennsylvania, distributes propane both domestically and internationally, manages midstream energy and electric generation assets in Pennsylvania, and engages in energy marketing in the Mid-Atlantic region. UGI, through subsidiaries, is the sole General Partner and owns 26% of AmeriGas Partners, L.P. (APU), the nation's largest retail propane distributor.

United States Natural Gas Fund (NYSEArca: UNG) is an exchange-traded security that is designed to track in percentage terms the movements of natural gas prices. The investment objective of UNG is for the daily changes in percentage terms of its shares' net NAV to reflect the daily changes in percentage terms of the price of natural gas delivered at the Henry Hub, Louisiana, as measured by the daily changes in the Benchmark Futures Contract, less UNG's expenses. The Benchmark is the futures contract on natural gas as traded on the NYMEX. If the near month contract is within two weeks of expiration, the Benchmark will be the next month contract to expire. The natural gas contract is natural gas delivered at the Henry Hub, Louisiana. UNG invests primarily in listed natural gas futures contracts and other natural gas related futures contracts, and may invest in forwards and swap contracts. These investments will be collateralized by cash, cash equivalents, and US government obligations with remaining maturities of two years or less.

Unitil Corp. (NYSE:UTL) provides energy for life by safely and reliably delivering natural gas and electricity in New England. We are committed to the communities we serve and to developing people, business practices, and technologies that lead to the delivery of dependable, more efficient energy. Unitil Corporation is a public utility holding company with operations in Maine, New Hampshire and Massachusetts. Other subsidiaries include Usource, Unitil's non-regulated business segment.

USA Compression Partners, LP (NYSE: USAC) is a growth-oriented Delaware limited partnership that is one of the nation's largest independent providers of compression services in terms of total compression unit horsepower. The company partners with a broad customer base composed of producers, processors, gatherers and transporters of natural gas and crude oil. USA Compression focuses on providing compression services to infrastructure applications primarily in high volume gathering systems, processing facilities and transportation applications.

VAALCO Energy, Inc. (NYSE:EGY) is a Houston based independent energy company principally engaged in the acquisition, exploration, development and production of crude oil. VAALCO's strategy is to increase reserves and production through the exploration and exploitation of oil and natural gas properties with the emphasis on international opportunities. The Company's properties and exploration acreage are located primarily in Gabon, Angola and Equatorial Guinea in West Africa.

Valeura Energy Inc. (TSX:VLE.TO) is a Canada-based public company currently engaged in the exploration, development and production of petroleum and natural gas in Turkey.

Vanguard Natural Resources, LLC (NasdaqGS:VNR) is a publicly traded limited liability company focused on the acquisition, production and development of oil and natural gas properties. Vanguard's assets consist primarily of producing and non-producing oil and natural gas reserves located in the Green River Basin in Wyoming, the Arkoma Basin in Arkansas and Oklahoma, the Anadarko Basin in Oklahoma and North Texas, the Permian Basin in West Texas and New Mexico, the Big Horn Basin in Wyoming and Montana, the Piceance Basin in Colorado, the Gulf Coast Basin in Texas, Louisiana and Mississippi, the Williston Basin in North Dakota and Montana, the Wind River Basin in Wyoming and the Powder River Basin in Wyoming.

Vectren Corp. (NYSE:VVC) is an energy holding company headquartered in Evansville, Ind. Vectren's energy delivery subsidiaries provide gas and/or electricity to customers in adjoining service territories that cover nearly two-thirds of Indiana and west central Ohio. Vectren's nonutility subsidiaries and affiliates currently offer energy-related products and services to customers throughout the U.S. These include infrastructure services and energy services.

Vermilion Energy, Inc (TSX:VET.TO) is an international energy producer that seeks to create value through the acquisition, exploration, development and optimization of producing properties in North America, Europe and Australia. Our business model targets annual organic production growth along with providing reliable and increasing dividends to investors. Vermilion is targeting growth in production primarily through the exploitation of light oil and liquids-rich natural gas conventional resource plays in Canada and the United States, the exploration and development of high impact natural gas opportunities in the Netherlands and Germany, and through drilling and workover programs in France and Australia. Vermilion also holds an 18.5% working interest in the Corrib gas field in Ireland.

Victoria Oil & Gas PLC (LSE:VOG.L) has become a significant domestic energy supplier in Africa through its wholly owned subsidiary: Gaz du Cameroun S. A. (GDC). With operations located in the industrial port-city of Douala, Cameroon, customers are converting their operations to take natural gas supplied by our production wells and pipeline infrastructure. GDC is the sole gas supplier in the area, providing a cheaper, more efficient, reliable, and cleaner energy alternative to Heavy Fuel Oil use. Our teams of engineering advisors are on hand to help customer's cost and implement the change to GDC's energy products

W&T Offshore, Inc. (NYSE:WTI) is an independent oil and natural gas producer with operations offshore in the Gulf of Mexico. We have grown through acquisitions, exploration and development and currently hold working interests in offshore fields in federal and state waters. A substantial majority of our daily production is derived from wells we operate offshore.

WesternZagros Resources (TSX:WZR.V) is an international natural resources company focused on acquiring properties and exploring for, developing and producing crude oil and natural gas in Iraq. WesternZagros, through its wholly-owned subsidiaries, holds a 40 percent working interest in two Production Sharing Contracts with the Kurdistan Regional Government in the Kurdistan Region of Iraq.

Westport Fuel Systems Inc. (NasdaqGS:WPRT; TSX:WPRT.TO) engineers the world's most advanced natural gas engines and vehicles. More than that, we are fundamentally changing the way the world travels the roads, rails and seas. We work with original equipment manufacturers (OEMs) worldwide from design through to production, creating products to meet the growing demand for vehicle technology that will reduce both emissions and fuel costs.

WGL Holdings Inc. (NYSE:WGL) headquartered in Washington, D.C., is a leading source for clean, efficient and diverse energy solutions. With activities and assets across the U.S., WGL consists of Washington Gas, WGL Energy, WGL Midstream and Hampshire Gas. WGL provides natural gas, electricity, green power and energy services, including generation, storage, transportation, distribution, supply and efficiency.

Williams Companies Inc (NYSE:WMB) is a premier provider of large-scale infrastructure connecting North American natural gas and natural gas products to growing demand for cleaner fuel and feedstocks. Headquartered in Tulsa, Okla., Williams owns approximately 60 percent of Williams Partners L.P. WPZ), including all of the 2 percent general-partner interest.

Williams Partners (NYSE:WPZ) is an industry-leading, large-cap master limited partnership with operations across the natural gas value chain from gathering, processing and interstate transportation of natural gas and natural gas liquids to petchem production of ethylene, propylene and other olefins. With major positions in top U.S. supply basins and also in Canada, Williams Partners owns and operates more than 33,000 miles of pipelines system wide - including the nation's largest volume and fastest growing pipeline - providing natural gas for clean-power generation, heating and industrial use. Williams Partners' operations touch approximately 30 percent of U.S. natural gas.

Woodside Petroleum Limited (ASX:WPL.AX) engages in the exploration, evaluation, development, production, marketing, and sale of hydrocarbons in Australia and internationally. The company's products include liquefied natural gas, pipeline natural gas, condensate, liquefied petroleum gas, and crude oil. It holds interests in the North West Shelf project located in Western Australia; and operates five floating oil production, storage, and offloading vessels in Australia. The company's exploration portfolio includes emerging and frontier provinces in Australia and the Asia-Pacific region, the Atlantic margins and Latin America, and Sub-Saharan Africa.

WorleyParsons Limited (ASX:WOR.AX) delivers projects, provides expertise in engineering, procurement and construction and offers a wide range of consulting and advisory services. We cover the full lifecycle, from creating new assets to sustaining and enhancing operating assets, in the hydrocarbons, mineral, metals, chemicals and infrastructure sectors. Our resources and energy are focused on responding to and meeting the needs of our customers over the long term and thereby creating value for our shareholders. Natural Gas

Xcel Energy Inc. (NYSE:XEL) is a major U.S. electricity and natural gas company that provides a comprehensive portfolio of energy-related products and services to electricity customers and natural gas customers through its regulated operating companies in eight Western and Midwestern states. Company headquarters are located in Minneapolis

Xebec Adsorption Inc. (TSX:XBC.V) provides gas purification and filtration solutions for the natural gas, field gas, biogas, helium, and hydrogen markets. Xebec designs, engineers and manufactures innovative products that transform raw gases into marketable sources of clean energy

Yangarra Resources Ltd. (TSX:YGR.TO) is a junior oil and gas company engaged in the exploration, development and production of natural gas and oil with operations in Western Canada, with a main focus on Central Alberta, where the Company has extensive infrastructure and land holdings.

YPF S. A. (NYSE:YPF) operates in the upstream and downstream activities in Argentina. It engages in the exploration, development, and production of crude oil, natural gas, and liquefied petroleum gas (LPG). The company is also involved in the refining, marketing, transportation, and distribution of oil, petroleum products, petroleum derivatives, petrochemicals, LPG, and bio-fuels; and gas separation and natural gas distribution operations.

Zargon Oil & Gas (TSX:ZAR.TO) is a Calgary based oil and natural gas company working in the Western Canadian and Williston sedimentary basins and is focused on oil exploitation projects (waterfloods and recently tertiary ASP) that profitably increase oil production and recovery factors from existing oil reservoirs.

Zenith Energy Ltd. (TSX:ZEE.V; LSE:ZEN.L) operates the largest onshore oilfield in Azerbaijan through its fully owned subsidiary, Zenith Aran Oil Company Limited, and has a number natural gas producing concession in Italy, through its subsidiary, Canoel Italia Srl. The Company's Italian operations also include the production of electricity and condensate.

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Our site does not give specific recommendations and encourages investors to complete their own due diligence. Our lists are compiled from internal and external research sources. Our lists are to be used only as a partial source of due diligence.