Oil Companies


613 oil companies100's of Oil and Gas Companies to be contacted directly for job opportunities.

Abraxas Petroleum Corp. Abraxas Petroleum Corporation is an independent natural gas and crude oil exploitation and production company based in San Antonio, Texas. Robert L.G. Watson, the company's President and CEO, founded Abraxas in 1977 and took the company public in 1991. Today, the company concentrates on developing its existing asset base while acquiring leases that fit strategically within its current portfolio. Abraxas targets conventional reservoirs, as well as emerging resource plays, in its primary operating areas in the Rocky Mountain, Mid-Continent and Permian Basin / Texas Gulf Coast Basin.


Abu Dhabi National Oli Co. (ADNOC)

Abu Dhabi National Oil Company (ADNOC) was established in 1971, to operate in all areas of the oil and gas industry and since then has steadily broadened its activity establishing companies and subsidiaries and creating an integrated oil and gas industry in Abu Dhabi. Today, the company manages and oversees oil production of more than 2.7 million barrels a day which ranks it among the top ten oil and gas companies in the world.


Afren Plc

An independent oil & gas company listed on the Main Market of the London Stock Exchange, with a diversified portfolio of production, development and exploration assets.


Aladdin Middle East Ltd

Aladdin Middle East Ltd. ("AME") is an independent American oil and gas exploration and production company organized in 1961 for oil exploration in Turkey. Outside the main office in Wichita, Kansas, company's operational headquarters is located in Ankara, Turkey, as well as field offices, where AME's production leases are being operated.  AME also has the branch office in Cairo Free Zone (Egypt) to facilitate drilling contracting.


Alpine Drilling


Altima Resources Ltd.

Altima Resources Ltd Altima Resources Ltd 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.


Ambit Energy Corporation

Ambit Energy Corporation is a privately held, international oil and gas exploration and production company with its initial focus on building value from oil and gas assets in the Niger Delta Basin in Nigeria and other West African jurisdictions.


Armstrong Energy Corp.

Armstrong Energy Corporation is a privately held oil and gas exploration and production company headquartered in Roswell, New Mexico. Armstrong Energy Corporation is also the general partner of Slash Exploration Limited Partnership.  Slash Exploration Limited Partnership was formed in 2006 in order to make a large and successful purchase of oil and gas properties.  Slash Exploration Limited Partnership continues to own the majority of the assets, of which Armstrong Energy Corporation is the operator.The company operates nearly 100 properties, owns a non-operated interest in more than 400 other properties, and holds more than 80,000 acres of leasehold interests.


Anadarko Petroleum Corporation

Among the largest independent oil and natural gas exploration and production companies in the world, with approximately 2.3 billion barrels of oil equivalent (BBOE) of proved reserves at year-end 2009. Anadarko's portfolio of assets encompasses premier positions in nearly a dozen major U.S. onshore natural gas resource plays. The company also is the largest independent deepwater producer in the Gulf of Mexico, and has production and/or exploration in Alaska, Algeria, Brazil, China, Indonesia, Mozambique and West Africa.


Anderson Energy Ltd.

Anderson Energy Ltd. is a publicly traded oil and gas company engaged in the exploration, acquisition, development and production of oil and natural gas in Western Canada. Anderson Energy Ltd.’s principle property is in Central Alberta. The company's development strategy is focused on shallow gas.


Angle Energy Inc.

Angle focuses its exploration and development activities in Alberta’s west central region, which typically yields liquids-rich, long-life natural gas reserves and high quality light crude oil. The Company has four areas of operation in west central Alberta: Harmattan, Ferrier, Lone Pine and Deanne.


Antero Resources

Antero Resources is an independent exploration and production (E&P) company engaged in the acquisition, development, and production of unconventional natural gas resources in the United States. Unconventional play types for Antero include tight sands and fractured shales. Corporate headquarters are located in Denver, Colorado. Antero has properties in the Piceance Basin in Colorado, the Arkoma and Ardmore Basins in Oklahoma, and the Appalachian Basin in West Virginia and Pennsylvania.


Anterra Energy Inc.

Anterra Energy Inc. is an independent exploration, development and production company with an emerging focus on the use of advanced technologies including 3-D imaging, horizontal drilling and multi stage completions to systematically develop its portfolio of conventional and non conventional oil and gas projects. Complementing this strong exploitation and development focus, the Company owns and operates fee-based midstream facilities in western Canada.


Apache Corp.

Apache Corporation is an independent energy company that explores for, develops and produces natural gas, crude oil and natural gas liquids. Our mission is to grow a profitable company for the long-term benefit of our shareholders by building a portfolio of core areas which provide long-term growth opportunities.


Approach Resources Inc.

Since our inception in 2002, Approach Resources Inc. has been engaged in the exploration, development, production and acquisition of unconventional natural gas and oil properties. We focus on natural gas reserves in tight gas sands and shale gas areas. We currently operate or have interests in Texas, New Mexico and Kentucky. Our management and technical team has extensive experience finding and exploiting unconventional reservoirs by applying advanced drilling, fracturing and completion techniques.


ARC Energy Trust

ARC Energy Trust has operated as a sound and conservative oil and gas company, structured as a trust, since 1996. An industry leader, a socially responsible operator and a key contributor to the communities in which we work, ARC has a proven track record of performance.


Arcan Resources Ltd.

Arcan Resources Ltd. is a high-growth junior producer with a balanced portfolio of assets located in the Deer Mountain, McLeod and Hamburg areas. The Company achieved a public listing through the RTO amalgamation of Desco Energy Ltd. and Arcan Resources Ltd. Arcan began trading on the TSX Venture exchange under the symbol “ARN” on January 09, 2007.


Arelian Oli & Gas

Aurelian’s focus remains on re-emerging Central Europe, one of the oldest and most prolific oil provinces in the world. Almost untouched by the technology of the last thirty years developed elsewhere, new and potentially large reserves can be expected to be found within countries which lie in the EU with its stability of title, its close access to markets and its attractive fiscal terms for production.


Arena Resources

Arena Resources, Inc. (NYSE: ARD) is an Oklahoma-based oil and gas exploration, development and production company with current operations in Texas, Oklahoma, Kansas and New Mexico. Founded in 2000, the experienced management team has aggressively sought to acquire select properties in their "back yard" which provides immediate positive cash flow and development opportunities for future years.


Argenta Oil & Gas Inc.

Azabache Energy Inc. is a Canadian-based emerging resource company focused on Latin America and the Caribbean with existing assets in Argentina and Colombia. Azabache's strong management team has significant local and international experience and the expertise to screen, analyze and capture market-to-resource projects in the Company's focus area.


Arsenal Energy

Arsenal Energy Inc. is an energy exploration and production company with producing properties in Canada and the United States. Corporate headquarters are located in Calgary, Alberta, Canada.


Artex Oil Company

Artex Oil Company has become one of the largest oil and gas producers in Ohio. Today we pay out millions of dollars per year in royalties to landowners. This would be impossible without the cooperation of numerous landowners granting thousands of oil and gas leases. Artex invests significant funds to explore on these leases using state of the art seismic and drilling techniques. These techniques greatly increase our success as well as the royalties paid to the landowners.  Artex is currently responsible for the creation and continuation of at least 500 jobs in our area of operations.


ATP Oil & Gas Corp.

ATP Oil & Gas Corporation (NASDAQ: ATPG) is engaged in the acquisition, development and production of natural gas and oil properties in the Gulf of Mexico and the North Sea. ATP acquires and develops properties, many of which have proved undeveloped reserves (“PUD’s”) at the time of acquisition that are economically attractive to ATP, but not strategic to exploration-oriented oil and gas companies. Such strategy provides ATP with the assets to develop and produce without the risk, cost and time involved in traditional exploration. Since its inception in 1991, the company has had an exceptionally strong development success record of 98% of taking projects to production that were previously undeveloped and non-producing. ATP is headquartered in Houston, Texas, with additional offices in Guildford, Surrey (U.K.) and IJmuiden (Netherlands).




B&R Energy

Barnes Energy Group is the umbrella name for two businesses that work together to more fully serve our investors' interests: 1. B&R Energy LLC Oil & gas exploration, drilling, operating, marketing, and investment - 2. BWOC, Inc. Oil & gas exploration, production, and marketing


Bankers Petroleum

Bankers Petroleum Ltd. is a Canadian-based oil and gas exploration and production company focused on developing large oil and gas reserves in Albania. The Company operates and has the rights to develop the Patos-Marinza heavy oil field and has a 100% interest in the Kucova oil field


Barnwell of Canada, Ltd.

Barnwell engages in oil and natural gas exploration, development, production and sales in Canada.


Base Oil & Gas

On October 8, 2009, Torrential Energy Ltd. acquired the Coutts property in exchange for shares. A new management team and Board of Directors were appointed and the company name was changed to Base Oil & Gas Ltd.Base Oil & Gas Ltd. is currently establishing a portfolio of developmental opportunities.


Baseline Oil & Gas

Baseline Oil & Gas Corp. (OTCBB: BOGA) is an independent oil and gas exploration and development company with three core properties: a 100% operated working interest in 2,700 acres located in the Blessing Field area of, Matagorda County, Texas; a 100% operated working interest in a 4,600 acre waterflood located in the Stephens County, Texas Eliasville Field; and an average 18.5% non-operated working interest in leases covering approximately 171,000 gross acres in the New Albany Shale play, located in the Illinois Basin of southern Indiana.


Baytex Energy Ltd.

Baytex Energy Trust is a Calgary, Alberta based conventional oil and gas trust engaged in the acquisition, development and production of oil and natural gas in the Western Canadian Sedimentary Basin. The trust also has an emerging presence in the United States. With changes to trust taxation laws in Canada set to take effect January 1, 2011, Baytex's current plan is to convert to a corporation, executing a growth-and-income model by the end of 2010. Baytex is committed to maintaining its production and asset base through internal property development and delivering consistent returns to its unitholders.


Bellamont Exploration

Bellamont Exploration Ltd. is a publicly traded junior energy company centered in the Peace River Arch area of Alberta.  Our growth strategy is focused on Montney oil resource plays which are being successfully developed via horizontal drilling and multi-stage fracture stimulation techniques. The Company is building a quality reserve, production and cash flow base through acquiring, developing and exploring. The 2010 capital program is weighted 84% to oil projects.

Bellatrix Exploration Ltd.

Bellatrix Exploration is a growth oriented exploration and production company based in Calgary, Alberta, Canada. Bellatrix is powered by a diverse asset base, focused on sustainable growth both in its people and in its properties. Bellatrix has a significant multi-year drilling inventory of locations in Alberta, Saskatchewan and British Columbia.


Berens Energy Ltd.

Berens Energy Ltd. (“Berens”) is a growth-oriented oil and natural gas exploration and production company with concentrated production and land bases in the Pembina, Lanfine, and Deep Basin regions of Alberta.


Berry Petroleum Co.

Berry Petroleum Company is an independent energy company engaged in the production, development, acquisition, exploitation and exploration of crude oil and natural gas. Publicly traded since 1987, Berry traces its roots in California heavy oil production back to 1909. Currently, Berry's principal reserves and producing properties are in California, Utah (Uinta basin), Colorado (Piceance) and Texas (Haynesville, Permian basin).


BG Group

A leading player in the global energy market, BG Group is a dynamic growing business with operations in more than 25 countries over five continents. While our headquarters are in United Kingdom (UK), over 60% of the talented professionals who make up the BG team are located outside the UK.


BHP Billiton

We are a world-class business. We have a diverse range of products, customers and markets, outstanding management depth and an enviable portfolio of growth opportunities.


Bill Barrett Corp

Since its inception in March 2002, Bill Barrett Corporation has assembled a portfolio of development and exploratory properties in the Rocky Mountain region of the United States.


Birchcliff Energy Ltd.

Birchcliff Energy Ltd. is an intermediate oil and gas exploration, development and production company based in Calgary, Alberta.


Black Diamond Energy

Black Diamond Energy, Inc. will be an industry leader in the energy syndication market. We will design drilling programs that satisfy landowner and environmental issues. We will make it our focus to provide our partners and landowners with full and timely reporting. This will provide Black Diamond Energy the ability to be an effective independent operator into the future.


Black Hills Corp.

We are a diversified energy company operating principally in the United States with two major business groups – Utilities and Non-regulated Energy.


BlueStone Natural Resources

BlueStone Natural Resources was formed in February of 2006 to identify, acquire and exploit Drilling and Acquisition opportunities for Oil and Natural Gas. Though the Company’s primary areas of focus are South and East Texas, BlueStone has the experience and expertise to work in many of the major producing basins around the country.


BoMar Oil&Gas

Incorporated by Lloyd Bob Preston, Margaret A Preston, Bomar Oil & Gas, Inc. is located at 3508 Greenville Ave Ste 8 Dallas, TX 75206. Bomar Oil & Gas, Inc. was incorporated on Thursday, January 28, 1982 in the State of TX and is currently active. L B Preston represents Bomar Oil & Gas, Inc. as their registered agent.


Bonavista Energy Trust

Bonavista Energy Trust is a Calgary-based oil and gas royalty trust created through the reorganization of Bonavista Petroleum Ltd. in July 2003. Bonavista Energy Trust is one of North America's largest energy trusts, with a market capitalization of approximately $3.6 billion CDN as at April 1, 2010, and trades on the Toronto Stock Exchange under the symbol of BNP.UN. Our base of operations are geographically focused within Alberta, Saskatchewan and North Eastern British Columbia, and possess a high level of company operated properties allowing for timely and low cost production additions. Production for 2010 is expected to average approximately 64,500 - 65,500 BOE per day, and is well balanced consisting of 62% natural gas and 38% oil and liquids.


Bonterra Oil & Gas Ltd.

Bonterra Energy Corp. is a high-yield, dividend paying oil and gas company headquartered in Calgary, Alberta. Bonterra has paid a monthly dividend (formerly a distribution) since inception and intends to pay approximately 60 to 75 percent of funds flow to investors.



BP operates at the frontiers of the energy industry. We use world-class assets, technology, capability and know-how to meet energy needs and deliver long-term value. Find out how a revitalized BP is driving efficiency, momentum and growth


BPZ Resources Inc

Houston based BPZ Energy is an oil and gas exploration and production company which has exclusive license contracts for oil and gas exploration and production covering approximately 2.4 million acres in four Blocks in northwest Peru. The Company is currently developing the Corvina oil field in offshore Block Z-1 as well as the redevelopment of the Albacora oil field approximately 16 miles north of the Corvina field. The first well in Albacora will be spud late third quarter 2009. The Company is also executing a gas-to-power strategy to monetize the natural gas in the Corvina field. A potential partnership is being negotiated for the generation and sales of electricity in Peru. BPZ Energy is a rapidly growing company with proved reserves, a stable balance sheet, and world class assets.


BreitBurn Energy Co. LLC

BreitBurn Energy Partners L.P. (Nasdaq: BBEP) is an independent oil and gas limited partnership, focused on the acquisition, exploitation and development of oil and gas properties for the purpose of generating cash flow to achieve our goal of providing our unitholders with stable and growing cash distributions. Our assets consist primarily of producing and non-producing crude oil and natural gas reserves located in the Los Angeles Basin in California, the Wind River and Big Horn Basins in central Wyoming, the Sunniland Trend in Florida, the Antrim Shale in Michigan and the New Albany Shale in Indiana and Kentucky.


Bridge Energy AS

Bridge Energy AS is a Norwegian registered E&P company with focus on the remaining exploration potential on the Norwegian Continental Shelf. The management and staff have experience from 30 years activity in Norway and from prominent international oil and gas provinces.The company was formed in 2005 and capitalised in June 2006. The capital base is mainly through Lime Rock Partners, an international private equity fund. Bridge Energy was qualified as licensee in Norway late 2006 and qualified as NCS operator in 2009.


Brigham Exploration Co.

We are an independent exploration, development and production company that utilizes advanced exploration, drilling and completion technologies to systematically explore for, develop and produce domestic onshore oil and natural gas reserves. We focus our activities in provinces where we believe these technologies, including horizontal drilling, multi-stage isolated fracture stimulations and 3-D seismic imaging, can be used to effectively maximize our return on invested capital.


Buccaneer Energy

Buccaneer is an upstream oil and gas company. It specialises in the development and expansion of behind-pipe proved and probable reserves and low-risk exploration plays with growth potential. Buccaneer’s growth strategy is focused on the progressive expansion of oil and gas production and reserves by acquiring significant working interests in low-cost, low-risk development properties that possess a significant undeveloped upside.




Cabot Oil & Gas Corp.

Cabot Oil & Gas Corporation, headquartered in Houston, Texas, is a leading independent North American natural gas producer. The company’s reserves are focused in both conventional and unconventional basins in Appalachia, the Rocky Mountains, the Mid-Continent and the Gulf Coast.


Cairn Energy Plc

Cairn Energy is one of Europe's largest independent oil and gas exploration and production companies.  We are listed on the London Stock Exchange and based in Edinburgh.  Our business is divided into two key units: one focused on developing the Rajasthan resource base in India; the other on exploring frontier basins in Greenland.


Callon Petroleum Co.

Callon Petroleum Company is an independent oil and gas company focused on building reserves and production through efficient operations and low finding and development costs. Since 1950, Callon has operated onshore and offshore in the Gulf Coast region.  The Company’s principal operations are located in the Gulf of Mexico and onshore in the Permian Basin of West Texas and in northern Louisiana.


Calvalley Petroleum

Calvalley Petroleum Inc. is a junior international oil and gas company based in Calgary, Alberta. The Company operates its 50% working interest in Block 9 in the Masila Basin of the Republic of Yemen and 100% working interest in the Gimbi and Metema Blocks in Ethiopia. Calvalley is well-financed and debt-free and expects to maintain a healthy balance sheet by funding its 2009 capital program from cash generated by operating activities. Calvalley's common shares are listed on the Toronto Stock Exchange under the symbol "CVI.A."


Canacol Energy

Canacol Energy Ltd. is a Canadian-based international junior energy company with production and exploration operations located in South America. The Corporation’s operations are focused in Colombia, Brazil, and Guyana, with offices located in Calgary, Bogota and Rio de Janeiro. The mandate of the Corporation is to build a stable operated production platform, and leverage operational expertise to grow through exploration in each of its focus countries. To date, the Corporation has been successful in acquiring producing assets with low risk development upside in Colombia and Brazil, and building a significant portfolio of opportunities that exposes Canacol to a wide range of exploration prospectivity. Canacol is a qualified operator in both Colombia and Brazil, which enables the Corporation to participate as operator in regularly scheduled exploration and marginal field bid rounds, and directly negotiate exploration contracts with government entities.


Canadian Natural Resources Ltd

The combination of our low cost profile and extensive exploitation-based focus on the basins we operate, make us a natural consolidator of properties throughout our core regions. Often counter-cyclical, our major acquisitions have made us a stronger and more diverse company. Most of these major acquisitions were comprised of a strong footing in our core regions but also provided entry into a new strategic basin.


Canadian Spirit

CANADIAN SPIRIT RESOURCES INC. , (“CSRI”) is a natural resources company focusing on the identification and development of opportunities in the unconventional gas sector of the energy industry. The mission of the Corporation is to develop 1 tcf of natural gas from resource plays in western Canada.


Candax Energy Inc.

Candax is a Toronto-based oil and natural gas company engaged in the exploration for, and the acquisition, development and production of, natural gas and crude oil, with emphasis on Africa and the Middle East.


Canext Energy


Carrizo Oil & Gas

Carrizo Oil & Gas, Inc. is a Houston based independent energy company engaged in the exploration, development and production of natural gas and oil.  Our current operations are focused in the Barnett Shale area in North Texas, in the Marcellus Shale of Appalachia, along the onshore Gulf Coast in Texas and Louisiana, and in the U.K. North Sea where two significant Carrizo generated discoveries were made in the 2nd quarter of 2007.


Castex Energy

Castex Energy, Inc. is a privately owned, Houston based oil and gas exploration and production company. The company was formed in 1987 and operates exclusively in South Louisiana.


Celtic Exploration

Celtic Exploration Ltd. is a growth-oriented oil and gas exploration and production company, based in Calgary, Alberta.Since commencing active oil and gas operations in September 2002, the Company has rapidly grown its production base, resulting in record-high revenue and earnings in 2006.


Cenovus Energy

Cenovus Energy is a leading integrated oil company headquartered in Calgary, Alberta. Our operations include our growing enhanced oil projects and established natural gas and crude oil production in Alberta and Saskatchewan. We also have ownership interest in two high-quality refineries in Illinois and Texas.


Centric Energy

Centric Energy Corp. (CTE) is focused on acquiring hydrocarbon assets in areas where the application of new technology and concepts can find new hydrocarbon resources, and optimizing these through strategic partnerships and joint-ventures. Our interest in the longer-term exploration play in an under-explored Mesozoic graben in Mali, provides an exciting portfolio of near and longer-term potential for significant hydrocarbon discoveries and production.



We are an integrated energy company operating predominately in the UK and North America. Upstream we source, generate, process, trade and store energy. Downstream we supply gas and electricity to millions of homes and businesses and offer a distinctive range of home energy solutions and low-carbon products and services.


Century Energy Ltd.

Century Energy Ltd. (CEY: TSX-V) is a junior oil and gas exploration company actively pursuing exploration opportunities in North and South America.



CEPSA has been in the market for almost 80 years. Thanks to its flexibility and ability to adapt, CEPSA has become one of the leading companies in its sector in Spain. Through the progressive internationalisation of its activities, it also has business interests in Algeria, Brazil, Canada, Colombia, Egypt, Panama, Peru and Portugal, and sells its products all over the world.


CGX Energy

CGX Energy Inc. is a Canadian-based oil and gas company focused on exploring for oil in the Guyana-Suriname basin. Our Licences in Guyana cover 9.5 million gross acres, 7.2 million net. In 1996, the founders of CGX began negotiations with the Government of Guyana to acquire an offshore concession to explore for oil. CGX and others view the Guyana-Suriname Basin as attractive for high-risk exploration for hydrocarbons. The United States Geological Survey (USGS) has identified the Guyana-Suriname Basin as having the second highest resource potential after Greenland among unexplored oil basins in the world. The USGS estimates mean recoverable oil reserves of 15.2 billion bbls and gas reserves of 42 trillion cubic ft.


Chalker Energy Partners

Build a successful, oil and gas orientedE&P company through an opportunisticapproach to acquisitions and exploitationin the major basins of Texas.


Chaparral Energy

We seek to grow reserves and production profitably through a balanced mix of developmental drilling, acquisitions, enhancements, EOR projects and a modest number of exploration projects. Further, we strive to control our operations and costs and to minimize commodity price risk through a conservative financial hedging program.


Chariot Oil & Gas Ltd

Chariot Oil and Gas Limited (AIM: CHAR) is an independent oil and gas exploration company with interests in Namibia. Enigma Oil and Gas Exploration (Pty) Limited is a wholly owned subsidiary of Chariot and is the operator of the licence areas.


Chesapeake Energy Corp.

We're one of the largest producers of natural gas and the most active driller of new wells in the U.S.  Headquartered in Oklahoma City, the company's operations are focused on discovering and developing unconventional natural gas and oil fields onshore in the U.S. Chesapeake owns leading positions in the Barnett, Fayetteville, Haynesville, Marcellus and Bossier natural gas shale plays and in the Eagle Ford, Granite Wash and various other unconventional oil plays. The company has also vertically integrated its operations and owns substantial midstream, compression, drilling and oilfield service assets.


Chevron Corp.

At Chevron, our businesses work in concert to provide the energy that drives human progress. Explore Chevron’s companies to learn how we use our global resources, determination and ingenuity to meet today’s complex energy challenges.



Cimarex Energy, Co. (NYSE, XEC) is a Denver-based independent oil and gas exploration and production company with principal operations in the Mid-Continent, Permian Basin and Gulf Coast areas of the U.S. Our business approach is centered on increasing shareholder value through consistent profitable growth in proved reserves and production through our drilling program and optimizing production rates. Year-end 2009 proved reserves totaled 1.5 trillion cubic feet equivalent (77% natural gas and 77% developed).


Cinch Energy Corp.

Cinch Energy Corp.'s mission is to grow both production and reserves on a capital efficient basis through exploration/development and strategic acquisitions. Management's goal is to maximize shareholder value, enhancing both the net asset value and cash flows of the company, while continuing to be a responsible and upstanding corporate citizen.


Cirrus Production

Depuis sa fondation en 1996, Cirrus Communications se donne pour mission de développer et de produire des œuvres télévisuelles et cinématographiques qui se distinguent par leur originalité, leur pouvoir d’attraction et leur capacité d’émouvoir le public.


Clayton Williams Energy

Clayton Williams Energy, Inc. (stock symbol -- CWEI) is an independent exploration and production company that develops and produces oil and natural gas. Clayton W. Williams, who has over 50 years of experience in the energy industry, founded the company.





"To create shareholder value by investing cash flow at rates of return above our cost of capital."


Coastal Energy Company

Coastal Energy Company is an international oil and gas exploration and production company with assets in Thailand. The Company is focused on acquiring discovered, underdeveloped oil and gas opportunities with significant upside potential, primarily in Southeast Asia. The Company also seeks to leverage the experience of management to pursue similar opportunities on a global basis.


Colt Energy Inc.

Colt Energy Inc is a private company categorized under Oil and Gas Exploration and Development and located in Fairway, KS. Current estimates show this company has an annual revenue of $500,000 to $1 million and employs a staff of approximately 5 to 9.


Compton Petroleum Corp.

Compton Petroleum Corporation is a public company actively engaged in the exploration, development and production of natural gas, natural gas liquids, and crude oil in western Canada. Our strategy is focused on creating value for shareholders by providing appropriate investment returns through the effective development and optimization of assets.


Comstock Resources


Concho Resources

We are an independent oil and natural gas company engaged in the acquisition, development and exploration of oil and natural gas properties. Our operations are primarily focused in the Permian Basin of Southeast New Mexico and West Texas. We intend to grow our reserves and production through development drilling and exploration activities on our multi-year project inventory and through acquisitions that meet our strategic and financial objectives.


Connacher Oil&Gas Ltd.


Conoco Phillips

ConocoPhillips uses its pioneering spirit to responsibly deliver energy to the world. This purpose transcends all of ConocoPhillips’ operations. The company conducts its business to return maximum value to shareholders while utilizing a wealth of knowledge and resources from its employees and acting responsibly in all communities in which it operates.


Constellation Energy Partners

Constellation Energy Partners (NYSE Arca: CEP) is a limited liability company focused on the acquisition, development and production of oil and natural gas properties as well as related midstream assets. Approximately 99% of our production is natural gas, which is recovered primarily from coalbed methane.  All of our proved reserves are located in the Black Warrior Basin in Alabama, the Cherokee Basin in Oklahoma and Kansas and the Woodford Shale in the Arkoma Basin in Oklahoma.


Continental Resources

Continental Resources is an independent oil and natural gas exploration and production company with operations in the Rocky Mountain, Mid-Continent and Gulf Coast regions of the United States. We focus our exploration activities in large new or developing plays that provide opportunities to acquire large, undeveloped acreage positions for future drilling operations. We have been successful in targeting unconventional resource plays, such as the Bakken Shale in Montana and North Dakota, where horizontal drilling, advanced fracture stimulation and enhanced recovery technologies facilitate the economic production of oil and natural gas reserves.




Corridor Resources Inc.

Corridor Resources Inc. is a junior resource company engaged in the exploration for petroleum and natural gas onshore in New Brunswick, Prince Edward Island and Québec and offshore in the Gulf of St. Lawrence and the development and production of natural gas in New Brunswick.


Crawford Energy

Crawford Energy is a Houston-based E&P company founded in 1986 by A. Gail Crawford. Our current exploration program is focused in the onshore Texas and Louisiana Gulf Coast areas. Historically, we have worked in North, East, South-Central Texas in addition to the Gulf Coast. As of August 2004, we have successfully completed 30 out of 35 wells drilled by our subsidiary, Crawford Energy Operating Company.


Crescent Point Energy

Since Day 1, Crescent Point has successfully implemented a three-part business strategy to drive shareholder growth in reserves, production and cash flow.



Crescent Petroleum has been operating as a regional upstream oil and gas company in the United Arab Emirates for almost forty years. It began its activities in the early 1970’s and was the first regional, independent, privately-owned Middle Eastern petroleum company to engage in the acquisition, exploration and development of petroleum concessions; and the production and sale of crude oil, petroleum products and natural gas.


Crew Energy Inc.

Crew Energy Inc. is a growth-oriented oil and natural gas producer. Crew's activities are concentrated in central Alberta and northeast British Columbia and focus on the development and expansion of its core natural gas and light oil producing areas and exploration of its large, undeveloped land base. Crew’s experienced management team is committed to the pursuit of sustainable per share growth through a balanced mix of financially responsible exploration and development, complemented by strategic acquisitions.


Crimson Exploration

Crimson Exploration is engaged in the acquisition, exploitation , and exploration of oil and natural gas. Crimson’s assets and activities are concentrated in the onshore producing regions of the U.S., primarily in Texas, Louisiana and Colorado.


Cue Energy Inc.

Cue Energy Resources Limited is an oil and gas exploration and production company with a focus on SE Asia and Australasia. We have petroleum assets in Papua New Guinea, Indonesia, New Zealand and Australia. It is our intention to continue to grow through hydrocarbon exploration and production.


Cygam Energy Inc.

Cygam Energy Inc. is a publicly traded exploration company listed on the TSX Venture Exchange in Canada. The Company has producing oil and gas properties in Canada and extensive international exploration concessions. The main focus of the Corporation is the creation of shareholder value through the acquisition, exploration and development of international permits, primarily in Italy, Tunisia and the Mediterranean area. Cygam currently holds various interests in six exploratory concessions in Italy and four exploratory concessions in Tunisia, encompassing 3.5 million gross acres (over 1.8 million net acres).




Dana Petroleum plc

Dana Petroleum plc is a leading British independent oil company, commited to maximising shareholder value throught the creation and execution of high impact opportunities.


Daylight Energy

Daylight Energy is a growth-oriented intermediate oil and gas company that currently declares dividends to shareholders on a monthly basis. Daylight has proven that it can grow through both acquisitions and through drilling. The company has production of approximately 40,000 barrels of oil equivalent per day and an enterprise value of more than two billion dollars. Daylight is focused on exploiting numerous resource plays on its extensive land base in the Deep Basin of Alberta and north east British Columbia. The company has a balanced mix of crude oil, liquids-rich natural gas and resource play natural gas and has the flexibility to focus our capital investments on the commodity that provides the best economics.


Deethree Exploration

DeeThree Exploration Ltd. ("DeeThree") is a growth-oriented, Calgary-based oil and gas exploration and production company with common shares trading on the TSX Venture Exchange under the symbol "DTX". DeeThree has a team of dedicated and experienced professionals that is largely comprised of members of management from Devlan/Dual Exploration Ltd. and Cequel/Cyries Energy Inc. Our management team is focused on the creation of shareholder value through exploration for crude oil and natural gas reserves in western Canada, complemented with strategic acquisition and development activities.


Delphi Energy Corp.

Delphi Energy is a Calgary-based public junior oil and natural gas company with operations focused in northwestern Alberta and northeast British Columbia. Delphi is well-positioned for organic growth with a large inventory of development opportunities complemented by a high-impact exploration program.


Delta Petroleum

Delta Petroleum Corporation is a Denver, Colorado based independent energy company engaged in the exploration for, and the acquisition, development, and production of natural gas and crude oil. Our core areas of operation include the Gulf Coast and Rocky Mountain regions. We have significant leaseholds in the Columbia River Basin in eastern Washington, which is a prospective frontier resource province. Recently, we have divested of a number of non-core properties in order to increase focus our core areas of development.

Denali Oil & Gas

Denali Oil & Gas was formed in February 2003 with an initial goal of becoming the most cost effective and efficient operator of deep tight gas in the prolific
South Texas region.  Since then, the company has enjoyed great success in South Texas, as well as other domestic basins. In seven years, Denali has discovered or acquired interest in thirty-three oil and gas fields and has drilled seventy-three wells. Sixty-four of the wells were operated by Denali and thirty-two were drilled to depths between 13,000' and 17,500'.  Utilizing a total of $149 million of investor capital, our projects have generated revenues of $340 million.


Derek Oil & Gas Corp.

Derek Oil & Gas Corporation is an oil exploration, development and production company that utilizes enhanced oil recovery ("EOR") techniques to develop new production from reservoirs containing significant quantities of oil. Derek's current focus is on the further development and increasing production from their prime property located in NE Wyoming's Powder River Basin.


Devon Energy


Diaz Resources Ltd.

Diaz is an oil and gas exploration and development company with land holdings and production in Canada and the United States. The Company’s principal business is the exploration for and marketing of natural gas with the majority of the Company’s revenue being generated from gas production in Alberta and Texas. The Company's current focus is on the development of a heavy oil pool near Lloydminster, Alberta, and oil exploration in Alberta and Saskatchewan.


Dominion Petroleum Ltd


Dominion's early entry and its strong local partners have enabled the company to gain a significant acreage holding in Africa. The company has one Production Sharing Agreement offshore Tanzania (Block 7) and three onshore - Mandawa, Kisangire (which includes the Lukuliro licence) and Selous. Dominion also holds a 95% interest in Ugandan Exploration Area 4B in the Albertine Rift Basin, the site of almost thirty recent oil discoveries. In the Democratic Republic of Congo, Dominion has signed a Production Sharing Agreement for Block 5 together with partners Soco International and the State Oil Company although it remains subject to Presidential ratification.


Drillsearch Energy Ltd.

Drillsearch Energy Limited is an ASX-listed oil and gas exploration and production company with over 20 years of petroleum exploration and production experience. Drillsearch is primarily focused on the Cooper / Eromanga Basins, Australia's premier onshore oil and gas basins, which span South West Queensland and the North East of South Australia. Drillsearch is now the largest acreage holder in these basins. Drillsearch has a balanced portfolio of high-impact exploration, development and production interests presenting significant growth potential with oil well drilling and development of the company's significant wet gas discoveries along with the expansion of the company's holdings in key production interests.


Dugan Production


Dune Energy

Dune Energy, Inc. is an independent exploration and development company, with operations focused along the Louisiana/Texas Gulf Coast. Dune operates over 90% of its production and typically maintains a 100% WI.  Proved reserves as of January 1, 2010 totaled 105.5 Bcfe.  Dune will continue to exploit its existing asset base, seek accretive acquisitions, and enter into additional joint venture drilling programs.


Dynamic Offshore

Dynamic Offshore Resources, LLC is a private oil and gas company focused on acquiring and developing producing properties in the Gulf of Mexico.
The company was formed in January 2008 with significant equity contributions from Riverstone Holdings LLC and management. As a well-capitalized private company with an experienced management team, Dynamic Offshore Resources pursues an aggressive growth strategy as a consolidator and developer of producing assets which have been deemphasized by traditional operators. These assets still provide attractive development opportunities. The company is headquartered in Houston, TX.




E-ON Ruhrgas E&P

E.ON Ruhrgas E&P combines international strength with local competence and technical expertise, thus offering exciting employment opportunities in the energy sector.


Eagle Oil and Gas

Operating under the name Eagle Oil & Gas Co., and through predecessor and affiliate companies, Eagle has been active in the acquisition, development and exploration of oil and gas reserves for over 60 years. Eagle was founded and is controlled by the Bolin family, who has had a well-known & respected name in the independent oil and gas business for
three generations.


Ecopetrol SA

Ecopetrol S.A. is the largest company in the country and the principal petroleum company in Colombia. Because of its size, Ecopetrol S.A. belongs to a group of the 40 largest petroleum companies in the world and it is one of the four principal petroleum companies in Latin America.


Edmiston Oil Company


Egyptian General Petroleum Corp.

EGPC is the first economic corporation constituted in Egypt according to the Law no. 135 of 1956 under the name of "The General Corporation of Petroleum Affairs" subjoined to the Ministry of Industry; having its legal personality. The corporation establishment law was amended by the Law no. 332 for the year 1956 at 10/9/1956 to be under the auspices of the Ministry of Industry. In 1976, the Law no. 20 of 1976 was issued to establish "The Egyptian General Petroleum Corporation" (EGPC) EGPC working as a holding corporation owns 12 public sector companies, sharing in 58-petroleum companies with foreign partners. EGPC and its companies sharing in 39 companies with a total paid capital of $938 million and 2.6 billion Egyptian pound.


El Paso Corporation

El Paso Corporation conducts meaningful work—day in, day out. We provide natural gas and related energy products in a safe, efficient, and dependable manner. We are organized around two core businesses—pipelines and exploration and production. We own North America’s largest interstate natural gas pipeline system—approximately 42,000 miles—transporting more than a quarter of the natural gas consumed in the country each day. Some of our pipeline assets are owned by El Paso Pipeline Partners, our master limited partnership (Learn more at www.eppipelinepartners.com).Our E&P operation ranks in the top 10 domestic independent producers, operating in high-quality basins across the United States and in Brazil and Egypt.


EMM Energy Inc.

EMM Energy Inc. is a public oil and gas exploration and production company based in Calgary, Alberta. The company's operations are focused in southern Alberta targeting sweet oil and gas in shallow horizons, generally less than 2000 meters.EMM Energy Corporation commenced operations as a private company in December 2001.In June 2003, Karisma Capital Corp. acquired the EMM Energy Corporation in a reverse take over. The company name was changed to EMM Energy Inc. and EMM was listed on the TSX Venture Exchange under the symbol, M. EMM Energy Inc. has grown production through acquisitions, drilling and farm outs of opportunities. All the company operations are in Alberta. EMM operates and holds 100% working interest in its Willesden Green, Carrot Creek, Lomond and Queenstown properties. The company also operates properties in Worsley, Marwayne, Caroline and Cherhill. Non-operated properties include Glen Park, Davey and Ricinus.



We are among the largest natural gas companies in North America. Focused on natural gas exploration and the development of resource plays, we have a diversified portfolio of assets and hold a highly competitive land and resource position in a number of North America's most promising shale and tight gas resource plays.


Encore Energy Partners

Encore Energy Partners LP is a growth-oriented master limited partnership formed on February 13, 2007 by Encore Acquisition Company which was subsequently acquired by Denbury Resources Inc. (NYSE: DNR) on March 9, 2010. As an upstream partnership, we are focused on acquiring, exploiting and developing oil and natural gas properties currently located in the Big Horn Basin in Wyoming and Montana, the Williston Basin in North Dakota and Montana, the Permian Basin in West Texas and New Mexico, and the Arkoma Basin in Arkansas and Oklahoma.


Energen Corporation

Energen Corporation is a growing oil and gas exploration and production company complemented by a small, single-state natural gas utility. Energen is weathering challenging economic times by capitalizing on its financial strength and capital discipline. In 2009 Energen common stock generated a total shareholder return of 61.6 percent.


Energy XXI

Since the company’s IPO in October 2005, Energy XXI has implemented an “acquire and exploit” growth strategy to build a geographically focused portfolio with some of the highest per-unit margins in the industry. The company has focused on developing the acquired properties while ramping up a complementary exploration program in the ultra-deep shelf where its first two attempts led to major successes at Davy Jones and Blackbeard. Energy XXI has completed four major acquisitions totaling approximately $1.4 billion, creating a company with more than 76 million barrels of oil equivalent (BOE) of proved reserves and about 28,000 BOE per day of production, 64% of which is oil. The company’s core properties are located on- and offshore Louisiana.


EnerPlus Resources

Enerplus has a diversified portfolio of crude oil and natural gas assets located in western Canada and the United States. Our strategy has been to build a balanced portfolio of properties that produce both crude oil and natural gas and offers diversity both geographically and geologically. This approach helps us to mitigate risks associated with any one commodity as well as gives us exposure to many play types across the Western Canadian Sedimentary Basin. Our operations are focused on resource plays which are areas where there are large deposits of oil and gas and the challenge is extracting the reserves economically and efficiently versus finding them. Our resource plays include shallow gas/coal bed methane, tight gas, crude oil waterfloods, Bakken/Tight oil and oil sands located in British Columbia, Alberta, Saskatchewan and Manitoba.



Eni is an integrated energy company, committed to developing its activities in research, production, transport, transformation and marketing of oil and natural gas


EOG Resources

EOG Resources, Inc. is one of the largest independent (non-integrated) oil and natural gas companies in the United States with proved reserves in the United States, Canada, Trinidad, the United Kingdom and China. EOG Resources, Inc. is listed on the New York Stock Exchange and is traded under the ticker symbol “EOG.”

At December 31, 2009, EOG’s estimated net proved natural gas reserves were 8,898 Bcf and estimated net proved crude oil, condensate and natural gas liquids reserves were 313 million barrels for a total of 10,776 Bcfe. Approximately 75 percent of EOG’s reserves on a natural gas equivalent basis were located in the United States, 16 percent in Canada, 9 percent in Trinidad and less than 1 percent in the United Kingdom North Sea and China. At year-end 2009, EOG had approximately 2,100 employees.


Epsilon Energy Ltd.

Epsilon Energy is engaged in the acquisition, exploration, development and production of oil and natural gas reserves in North America, the Middle East and Africa.Epsilon Energy's strategy involves developing a well-balanced inventory of oil and natural gas projects in North American, the Middle East and Africa, including high potential oil properties in the Republic of Yemen and the Federal Democratic Republic of Ethiopia, coupled with lower risk properties within the Appalachian basin in the United States and the provinces of Saskatchewan and Quebec in Canada.


EQT Corp.

Not every company can say it mixes the experience and strength of a 120-year-old company with the attitude and innovation of a startup, but EQT does just that.Through our production activities, EQT has developed smarter and cleaner drilling technologies, enabling us to have grown to be the Appalachian Basin’s largest natural gas producer, and one of the largest in the country. Operating in four states, we are a technology-driven leader in the integration of air and horizontal drilling.Through our midstream business, we are fulfilling a need for safer, more technologically-advanced energy infrastructure by building and operating new pipelines, processing plants, and storage facilities. We are committed to meeting the country’s growing demand for clean energy, while continuing to promote safety, provide a rewarding workplace, and enrich the communities where our employees live and work. EQT stands out from the pack with its vision, innovation, sound business practices, and environmental conscientiousness.


Exall Energy Corp.

Exall Energy Corporation (“Exall Energy” or the “Company”) is a Canadian based junior oil & gas exploration and production (E & P), company developing a number of currently producing, long life oil & gas assets in the prolific Western Canadian Sedimentary Basin, particularly in Alberta.  Exall’s recent Marten Mountain oil discovery, made in 2010, is part of a trend which the Company has been drilling since 2007.  The new Marten Mountain oil discovery has the potential to substantially increase Exall's oil production.  Internationally, Exall Energy has producing natural gas assets in Texas, USA.Exall Energy was formed in December 2006 as a result of a spin-out of oil & gas assets previously held by Exall Resources Limited, which changed its name to Gold Eagle Mines Ltd., upon the successful completion of a merger with its partner, Southern Star Resources Inc., and the acquisition of Kingsmere Exploration Ltd. in January 2007.Exall Energy is a pure oil & gas company that will continue to build its production and asset base through "the drill bit", and through strategic acquisitions. Exall Energy is listed on the Toronto Stock Exchange under the symbol “EE”.



We are the world's largest publicly traded international oil and gas company, providing energy that helps underpin growing economies and improve living standards around the world.




Fairborne Energy

Fairborne’s portfolio is concentrated in four main core areas in Alberta, Saskatchewan and Manitoba. Fairborne operates a large proportion of its production and maintains high working interests in its key properties.


Flash Gas & Oil Southwest


Forest Oil Corp.

Forest Oil and its subsidiaries are engaged in the exploration, acquisition, development, production and marketing of natural gas and crude oil in North America and in selected international locations. Corporate headquarters are located in Denver, Colorado, with principal reserves and producing properties in Arkansas, Louisiana, New Mexico, Oklahoma, Texas, Utah, and Wyoming, and in Canada. Forest Oil was launched in northwestern Pennsylvania in 1916, incorporated in 1924, and has been publicly held since 1969. The Company operates five distinct geographic Business Units, which include Canada, Eastern, Southern, Western and International.


Frontera Resources

Frontera Resources is a Houston, Texas based international oil and gas company that was founded in 1996. The company was organized to pursue international exploration and production opportunities in emerging markets. Today, Frontera's core operations are in the country of Georgia.




Galleon Energy Inc.

Galleon Energy Inc. is part of an exclusive group of mid-sized oil and natural gas explorers and producers operating in Western Canada. The company has the largest contiguous land block ever assembled on Alberta’s Peace River Arch and one of the strongest technical teams
in the sector.


Gasco Energy

Denver-based Gasco Energy, Inc. (NYSE Amex: GSX) is a rapidly growing independent oil and gas company focused on building shareholder value through the development of large natural gas deposits in the U.S. Rocky Mountain region. Focused primarily on Utah's Uinta Basin, Gasco targets multiple, tight-gas sands and shales that are regionally extensive across its leasehold. Gasco's SEC-defined proved reserves at year-end 2009 were approximately 46.9 billion cubic feet of natural gas equivalent, comprised 94% of natural gas and 100% of the quantities are proved developed. The Company operates over 100 producing wells in its core Riverbend Project in the Uinta Basin.


Gastar Exploration Ltd.

Gastar Exploration Ltd. is an exploration and production company focused on finding and developing natural gas assets in North America. The Company pursues a strategy combining deep natural gas exploration and development with lower risk CBM and shale resource development. The Company owns and operates exploration and development acreage in the deep Bossier gas play of East Texas and Marcellus Shale play in West Virginia and Pennsylvania. Gastar's CBM activities are conducted within the Powder River Basin of Wyoming.



Gazprom is one of the world’s largest energy companies. Its major business lines are geological exploration, production, transportation, storage, processing and marketing of hydrocarbons as well as generation and marketing of heat and electric power. Gazprom’s mission is to ensure maximally efficient and balanced gas supply to Russian customers and reliably fulfill long-term gas export contracts.


Gazprom Neft

Gazprom Neft is one of the largest and fastest growing oil and gas producers in Russia. The key areas of the Company's operations include the exploration, development, production and sale of crude oil and gas, as well as oil refining and the marketing of petroleum products. Gazprom Neft operates in the largest oil and gas regions in Russia such as Khanty-Mansyisk Autonomous District, Yamalo-Nenets Autonomous District, Tomsk and Omsk regions. The Company's major oil refineries are located in the Omsk, Moscow, and Yaroslavl regions.


Genel Energy

 Genel Energy plc is an Anglo-Turkish exploration and production company with world-class oil and gas assets. We own a portfolio of high-quality assets with robust growth options over the short, medium and long-term. An excellent capital base and a high-calibre board and management team underpin these assets. With these strengths, Genel Energy is building a leading E&P business, founded on a set of assets in the Kurdistan Region, that places us in the top tier of independent E&Ps.


GeoMet Operating Co.

GeoMet, Inc. is an independent energy company primarily engaged in the exploration for and the development and production of natural gas from coal seams (coalbed methane or CBM) and non-conventional shallow gas. Our principal operations and producing properties are located in the Cahaba Basin in Alabama and the Central Appalachian Basin in West Virginia. We also control additional coalbed methane and oil and gas development rights, principally in Alabama, British Columbia, Virginia and West Virginia.


GMX Resources

GMXR is a 'Pure Play', E & P Company with one of the most concentrated H/B Hz Shale Operations in East Texas. The Company has 355 BCFE in proved reserves (YE2009), 94% of which are natural gas. The Company's proved reserves are 81% operated and consist of 19.0 gross/18.6 net H/B Hz producers, 324 gross / 186.9 net Cotton Valley Sand ("CVS") producers and 47 net Travis Peak / Hosston Sands & Pettit producers. These multiple resource layers provide high probability and the potential for repeatable, organic growth and contain 273 net H/B Hz un-drilled locations and 1,382 net CVS un-drilled locations.


Goodrich Petroleum Corp.

Goodrich Petroleum Corporation is an independent exploration and production company that drills for, acquires, develops and produces natural gas and crude oil primarily in the Haynesville Shale and Cotton Valley Trend in East Texas and North Louisiana, and the Eagle Ford Shale oil window of South Texas.


Grand Mesa Operating Co.


GranTierra Energy

Gran Tierra Energy Inc. is an international oil and gas exploration and production company headquartered in Calgary, Canada, incorporated and traded in the United States and operating in South America. The Company currently holds interests in producing and prospective properties in Colombia, Argentina and Peru. The Company strategy is focused on establishing a portfolio of drilling opportunities to exploit undeveloped reserves to grow production, as well as undertaking exploration drilling to grow future reserves.

Great Plains Exploration Inc.

The Great Plains management team has personal experience in pursuing – and achieving – our planned growth model. In previous ventures, we attained timely, profitable growth in production, reserves, cash flow and net asset value. This experience was gained through more than one corporate cycle of company formation, acquisitions, rationalization, internal growth and monetization, and through more than one commodity price cycle. We are confident of this model’s ability to maximize shareholder value. Our track record suggests we can execute it successfully at Great Plains.


Greentree Gas & Oil Ltd.

Greentree Gas & Oil Ltd. is an Ontario-based junior oil and gas exploration and production company. The Company focuses on its core areas in southwestern Ontario, where it continues to explore and develop long-life reserves of natural gas and light oil.

Gulfport Energy Corp.

Our Company is a value-driven, growth oriented oil and gas exploration and production company headquartered in Oklahoma City, Oklahoma.  Operating areas include targeted exploration and exploitation using new technologies in areas with known major oil resources in place whether in Southern Louisiana, the Permian Basin and the Bakken Shale.  Exploration opportunities are pursued in areas where capital investment can generate tremendous upside as shown by exploration and exploitation activities in the Canadian oil sands, natural gas exploration in northern Thailand, and oil and gas exploration activities in Belize




Hardy Oil and Gas

Hardy Oil and Gas plc is an international oil and gas exploration and production company primarily focused on India with some development interests in Nigeria. The Group has assembled an attractive portfolio of exploration, development and production assets. Ordinary shares of Hardy trade on the Main Market of the London Stock Exchange under the trading mnemonic HDY.L.


Hawk Exploration

Hawk is a company engaged in the exploration, development and production of conventional crude oil and natural gas in western Canada and is based in Calgary, Alberta.


Hellenic Petroleum SA

A dynamic Group, with solid foundations and a continuous profitability holds a leading position in the Greek energy sector as well as in the greater area of Southeast Europe. The Group’s range of activities includes: Refining of crude oil and  fuel supply.Retailing of oil products, including sales abroad.Production and trading of petrochemicals and chemicals.Oil & Gas exploration and production. Production and trading of power generation through Elpedison, the 50/50 joint venture with Italy's Edison.Participation in the natural gas market, through the 35% stake in DEPA S.A. Provision of consulting and engineering services to hydrocarbon related project.Production and trading of any other form of energy.Participation in the transportation of crude oil and products (pipe-lines, sea transportation). The Group’s entrepreneurial programme includes investments mainly in the refining sector, in power production, as well as investments concerning the expansion of its international activities, with priority set in S. E. Europe and particularly in  the Balkan region.


Hemisphere Energy Corp.

Hemisphere Energy Corporation (TSX-V: HME) is an emerging Canadian oil and gas company engaged in the exploration, development and production of oil and natural gas reserves. Hemisphere Energy has an experienced team dedicated to delivering growth in production, reserves and cash flow per share with a balanced strategy of developing, exploring and acquiring oil and natural gas assets in Western Canada.




HighMount E&P LLC

HighMount is the combined energy of people with a passion for our industry and our future. We focus on the development of long-life natural gas in a creative and open culture that values the contribution of every employee. Leveraging the diverse talents of our dedicated employees, we bring a dynamic perspective to the industry and an unwavering commitment to integrity, safety and the environment. At HighMount, we energize people to achieve their full potential. At HighMount, we are energized to realize the unlimited potential of the ideal transition energy to the future.


Holloman Energy Corp.

Holloman Energy explores for oil and gas in Australia. We trade on the US OTC BB under the Symbol “HENC”. Our controlling shareholder is Houston-based Holloman Corporation, one of the largest employee-owned engineering and construction companies in the United States. As a result of that relationship, we have the benefit of support generally unavailable to companies our size.


Holmes Western Oil


Houston American Energy

Houston American Energy Corp. (HUSA) is an oil and gas exploration and production company. Our oil and gas exploration and production activities are focused on properties in the U.S. onshore Gulf Coast Region, principally Texas and Louisiana, and on the development of concessions in the South American country of Colombia. We seek to utilize the contacts and experience of our founder and chief executive officer, John F. Terwilliger; the expertise in oil and gas geology, engineering and production provided by our Board of Directors; and the financial acumen of our Chief Financial Officer, James J. Jacobs to seek out and evaluate favorable drilling opportunities. We generally seek to form partnerships and joint ventures to spread the cost and risks to us of drilling while maximizing our potential returns.


Howard Energy Corp.

Since the Company's inception, Howard Energy has sought to establish its reserve base through exploration, acquisition, and technical enhancement of known reserves. Howard Energy has also established subsidiaries to further its investments in the energy sector.

Howard Energy uses the most up-to-date geophysical technology available. Howard Energy's geophysical experience includes incorporating gravity, magnetics, and seismic data to produce a comprehensive geophysical interpretation with the primary focus on seismic data. Howard Energy processes all of its proprietary seismic data internally, and Howard Energy scientists have written proprietary software to help solve statics in difficult data areas.




Imperial Oil

As an integrated energy company, we explore for, produce, refine and market products essential to society. 

Inland Ocean Inc.


Insignia Energy Ltd.

The Company will pursue high quality prospects in the “deep basin” area of Western Canada. Prospects will be generated internally with full cycle programs including land purchases, exploration, development and production. In addition, strategic and focused acquisitions will be pursued.

International Sovereign


InterOil E&P

Interoil Exploration & Production ASA is an international independent petroleum company with headquarter in Oslo. The company is engaged in the acquisition, exploration, development and operation of oil and natural gas properties. Interoil E&P serves as operator or active license partner in several production and exploration assets in Peru, Colombia, and Ghana.


Intl. Frontier Resources

International Frontier Resources Corporation is a publically traded junior oil & gas company. Our shares are listed on the TSX-V Exchange trading under the symbol ~ IFR. The company's principal properties are located in N.W. Montana, USA and in the Central Mackenzie Valley, Northwest Territories, Canada. Our properties are discussed in the body of our web site.


Ironhorse Oil & Gas Inc.

 Ironhorse Oil & Gas Inc. (TSX-V:IOG) is a Calgary-based junior oil and natural gas exploration and production company with an interest in producing/developed acreage in southwest Saskatchewan and west
central Alberta.


Iteration Energy

Chinook Energy Inc. has expanded its footprint in Canada through a business combination with Iteration Energy Ltd. The combined company currently has production of 15,000 boed and was publicly listed on the TSX as aChinook Energy Inc. July 6, 2010. The combined company will have strong gas weighted growth potential in Western Canada and strong oil growth potential in North Africa.




JKX Oil & Gas PLC

JKX Oil & Gas plc is an exploration and production company listed on the London Stock Exchange.  The Company’s principal interests are located in Ukraine and Russia, with additional interests in Bulgaria, Hungary and Slovakia.


JW Operating




Kallisto Energy

Kallisto Energy Corp. is a Calgary-based junior oil and natural gas exploration and production company.



 KazMunaiGas Exploration Production is one of the largest employers in the area of its operations. The Company employs over 14,000 people.


Key Petroleum

Key Petroleum Ltd is a Perth based, ASX listed Australian Company (ASX code: KEY) that is internationally focused, securing assets in Australia, England, Tanzania, Italy, and Suriname.


Kinder Morgan Production Company

 Kinder Morgan is one of the largest pipeline transportation and energy storage companies in North America with more than 37,000 miles of pipelines and 180 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, coal, petroleum coke and steel.

Kirkpatrick Oil Company

John E. Kirkpatrick, a prominent Oklahoma business and civic leader, founded Kirkpatrick Oil Company. To this day, Kirkpatrick Oil remains a well-established, family-owned oil and natural gas exploration and production company. Headquarters are in Oklahoma City with District Offices in Denver, CO and Midland, TX and a field office in Hennessey, OK. Shaped by a combination of successful drilling and acquisition ventures, Kirkpatrick Oil Company takes pride in its history and looks forward to further growth and success.


Kuwait Oil Company

In 1934 the Kuwait Oil Company Ltd. was established by the Anglo-Persian Oil Company, now known as the British Petroleum Company, and Gulf Oil Corporation, now known as Chevron Corporation. The Company activities had extended to include exploration operations, on-shore and off-shore surveys, drilling of test wells, and developing of producing fields in addition to crude and natural gas exploration.




Lario Oil & Gas

 Lario Oil & Gas Company is a privately owned independent oil and gas company with interests and operations in the Permian Basin of West Texas and New Mexico, the Greater Green River Basin of Colorado and Wyoming, the Williston Basin of Montana and North Dakota, the Denver Julesburg Basin, the Mid Continent Region (Oklahoma and Kansas), the Arkoma Basin (Eastern Oklahoma), South Texas, the Sacramento Basin of California, and internationally in the Canadian provinces of Alberta and Saskatchewan.


Legacy Reserves

Specializing in Oil and Natural Gas Operations, Acquisitions and Development in the Permian Basin, Mid-Continent, and Rocky Mountain Regions.
We are an independent oil and natural gas 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 Mountains regions of the United States.


Lenapa Resources



Linn Energy

 Thanks to the steadfast commitment of our employees, LINN Energy has grown from a handful of natural gas wells in 2003 to a top-20 independent U.S. oil and natural gas development company with more than 2.4 Tcfe of proved reserves in producing U.S. basins as of year-end 2009 (pro forma for closed and pending acquisitions in 2010). Since LINN became the first publicly traded independent oil and natural gas limited liability company in January 2006, it has consistently paid a quarterly distribution to its unitholders. The Company delivered a 100 percent rate of return to unitholders in 2009 and now has 700 employees spread across more than two dozen locations in the U.S. Headquartered in Houston, Texas, the Company's core areas of operation are the Mid-Continent, Permian Basin, California and Michigan.



LUKOIL is a major international vertically-integrated oil & gas company, accounting for 2.2% of global output of crude oil.




Maersk Oil

Maersk Oil is now producing oil from the Danish and UK sections of the North Sea, Qatar, Algeria and Kazakhstan. It conducts exploration activities in those areas as well as offshore Norway, the U.S. Gulf of Mexico, Brazil, Angola and Oman.


Magnum Hunter Resources

 Magnum Hunter Resources Corporation and subsidiaries (NYSE: MHR, the “Company”) are a Houston, Texas based independent exploration and production company engaged in the acquisition of producing properties and exploratory leases, secondary enhanced oil recovery projects, exploratory drilling, and production of crude oil, natural gas liquids and natural gas in the onshore United States. The Company changed its name to Magnum Hunter Resources Corporation and its common share ticker symbol to ‘MHR’ from Petro Resources Corporation (NYSE Amex: PRC) on July 14, 2009. The corporate name changed followed the appointment of Gary C. Evans as Magnum Hunter’s Chairman on May 23, 2009.




Marathon Oil Corp.


Maritek Resources

Maritech Resources, Inc., is a wholly owned subsidiary of TETRA Technologies, Inc. , a rapidly growing, results oriented, oil and gas company. Maritech, with its talented team of engineers, geologists, geophysicists, landmen, marketing staff, operations group, accountants, and support personnel, has put together a tremendous track record in the Gulf of Mexico.


McCombs Energy

McCombs Energy is a privately owned oil and gas exploration and production company that is based in Houston, Texas.


McMoran Exploration Co.

McMoRan Exploration Co. is an independent public company engaged in the exploration, development and production of natural gas and oil in the shallow waters of the GOM Shelf and onshore in the Gulf Coast area.


Meade Energy Corp.


Melrose Resources

Melrose Resources plc is an Edinburgh-based oil and gas exploration, development and production company with interests in Egypt, Bulgaria, Romania, United States, France and Turkey. Melrose was founded in the 1990's and was listed on the Main Market of the London Stock Exchange in 1999.


Meridian Resource Corp.


Merit Energy

Merit Energy Company is a private firm specializing in direct investments in oil and gas assets. Our dedicated and proven investment strategy has been implemented since the Company was formed in 1989 and has been successful year after year. The senior management team has worked together for over a decade embracing the same investment philosophy and instilling a culture within the organization of respect and responsibility at every level of the Company. This, combined with our intensive engineering and operational focus, has enabled us to consistently create value for our investors and create a dynamic environment for our employees.


Merrion Oil & Gas

"THAT's the deal.  TAKE it or LEAVE it!" demanded J. Greg Merrion in as diplomatic a fashion as he could muster.  He was trying to peddle a San Juan Basin Gallup-Dakota prospect on family-owned minerals in the late 1950's.  Well... they left it.  But what J. Greg lacked in diplomacy, he more than made up for in moxie.  So, after nine years as a petroleum engineer wth the British American Oil Producing Company, he set out on his own in 1960.  Risking it all, he quit his job, moved his young family from Midland, TX to Farmington, NM, then begged, borrowed, and scraped together enough money to drill the Edna 1 (a Gallup oil well named after his mother).  The successful well beat back the creditors, and was the "big bang" that began the evolution from J. Greg's dream into the company that would become Merrion Oil & Gas.


Midnight Oil Exploration


Midway Energy Ltd.

Midway's experienced management team has a proven track record of aggressively growing oil and natural gas companies and creating value for shareholders. The Company is strategically focused on repeatable drilling opportunities for light oil in the Garrington and Swan Hills areas of Alberta.


Miesen Development Corp.

Miesen Development Corp ("MDC") was incorporated in Texas by Dale Miesen in March 2002 to primarily develop "proven reserves" of natural gas, oil and mineral rights in the USA by providing private investment opportunities that can provide strong income and tax benefits with moderate risk.  The increasing demand for energy and unique tax benefits for domestic drilling and development, of up to 100% tax write-off, make for a timely opportunity. Income streams from producing wells and/or royalty from mineral rights are ideal for many private investors


Missan Oil Company


MKJ Exploration Inc.


MOL Group


Monterey Exploration

On July 12, 2010 Monterey Exploration and Pengrowth Corporation announced that they had entered
into an arrangement agreement pursuant to which Pengrowth would acquire all of the issued and outstanding common shares of Monterey. The transaction closed on September 15, 2010 


Murex Petroleum Corp.

Murex Petroleum Corporation is engaged in the acquisition, development and operation of oil and gas properties in North America. Since incorporating in 1996, Murex has enjoyed tremendous growth and success to become the 5th largest operator in South Dakota, the 11th largest operator in North Dakota and the 25th largest operator in the Rocky Mountain Region. Murex has also been ranked the 38th largest privately held oil and gas company by the Oil & Gas Financial Journal. 


Murphy Oil Co.

Murphy Oil Corporation is an international oil and gas company that conducts business through various operating subsidiaries. The Company produces oil and natural gas in the United States, Canada, the United Kingdom, Malaysia, and Republic of the Congo and conducts exploration activities worldwide. The Company owns marketing operations in the United States and the United Kingdom, including a refinery in Milford Haven, Wales.




National Oil Corporation

The National Oil Corporation (NOC) was established on 12 November 1970 , under Law No: 24/1970, replacing the general Libyan Petroleum Corporation which established under Law No. 13 of 1968  to assume the responsibility of the oil sector operations . It was later reorganized under decision No :10/1979 by the General Secretariat of the General People's Congress, to undertake the realization of the objectives of the development plan in the areas of petroleum , supporting the national economy through increasing , developing and exploiting the oil reserves and operating and investing in those reserves , to realize optimum returns. In carrying out its activities, NOC may enter into participation agreements with other companies and corporations carrying out similar activities.


Nautical Petroleum

Nautical Petroleum plc intends to become a significant producer of oil, initially in the United Kingdom Continental Shelf (UKCS) and in Europe.Our aim is to secure further oil discoveries in the UKCS and EU through acquisitions, farmins and licensing rounds. We aim to achieve near term production on current assets and enhance crude value and mitigate risk through our relationships. We will acquire oil exploration blocks with low to moderate commitments and farmout to mitigate portfolio risk, with the overall aim of enhancing shareholder value.


NCL Natural Resources


Nelson Energy

Nelson Energy is a privately held Minneapolis-based company specializing in the development of the hydroelectric potential at existing dams and closed system pumped storage.  Nelson Energy is managed by Douglas A. Spaulding, P.E. and Robert P. Larson.


Newfield Exploration Co.

Newfield Exploration Company (NYSE:NFX) is an independent crude oil and natural gas exploration and production company headquartered in The Woodlands, Texas.


Newton Energy

Newton Energy (NTN:TSX-V)  is a junior oil exploration company focused on the underdeveloped basin in the East Midlands Basin in the United Kingdom. Newton’s licenses, 100% non-coal petroleum, comprise a contiguous 150,000 acres, east of Nottingham 



Nexen is a Canadian-based energy company with operations in strategic locations around the world including the North Sea, the Gulf of Mexico, offshore West Africa, Canada, Yemen and Colombia. With more than 3,800 employees worldwide, our primary offices are located in Calgary, Houston, Uxbridge and Aberdeen.


Nigerian National

In addition to its exploration activities, the Corporation was given powers and operational interests in refining, petrochemicals and products transportation as well as marketing. Between 1978 and 1989, NNPC constructed refineries in Warri, Kaduna and Port Harcourt and took over the 35,000-barrel Shell Refinery established in Port Harcourt in 1965.


Niko Resources

With its head office located in Calgary, Canada, Niko has operations in India, Bangladesh, Indonesia, Kurdistan Iraq, Madagascar, Pakistan and Trinidad. High impact plays are the key component in Niko's strategy.


NM EXCO Resources

A natural gas and oil company engaged in the exploration, exploitation, development and production of onshore natural gas and oil properties. Our operations are focused in certain key natural gas and oil producing regions of the United States. Our primary goal is to build value for our shareholders by enhancing the value of our assets through efficient operations, a high technology drilling program, development of our properties and exploitation of unproved upside.


Noble Energy

Noble Energy, Inc. is a leading independent energy company with a diverse portfolio of high-quality assets, a track record of success and a sound strategy for the future. Our broad-based operations include the exploration, development and production of crude oil and natural gas in the U.S. and internationally. Committed to superior performance and returns, we measure success in the value we deliver to our investors, business partners and employees.


Nordic Oil & Gas

Nordic Oil and Gas Ltd. is an independent oil and gas company actively engaged in the exploration, development and production of oil, natural gas and Coal Bed Methane (CBM) in Alberta and Saskatchewan.



Noreco has a significant and balanced portfolio of licenses under development and producing fields. In addition, exploration is a central part of our business. We focus our activities to North-west Europe, and today operate in Norway, Denmark and the UK.


North Oil Company

North Oil Company ( N.O.C. ) is a state company within the Ministry of Oil of Iraq, the scope it’s work being oil and gas production.  The company’s geographical operation area spans the following governorates : Kirkuk , Nineveh , Erbil , Baghdad , Diyala and part of Hilla and Kut .The company carries out the duties of producing crude oil and natural gas from oil and gas Fields situated in the northern half of Iraq . The company contains more than fifty installations comprising pump stations, process units , oil tank fields ,degassing stations , gas compressor stations , water treatments plants, electric  generation stations , and a large number of oil wells which are connected with a network of flow lines and pipelines dispersed throughout the company’s area of operation. N.O.C. supplies crude oil of different types to Iraqi refineries and associated gas to North Gas Company units and to electric generation stations as well as  for export through a network of pipeline system toward north and west of the country for export from terminals in Turkey and Syria


North Peace Energy Corp.


Northern Petroleum

Northern Petroleum Plc is an EU oil company that acquires low entry cost exploration, production and development assets and is committed to adding high value to shareholders from production and asset sales.



We are Russia’s largest independent natural gas producer and the second-largest natural gas producer in Russia after Gazprom, in each case according to the CDU-TEK for 2010. We are principally engaged in the exploration, production, processing and marketing of natural gas and liquid hydrocarbons and have over 15 years of operational experience in the Russian oil and natural gas sector. In 2010, we accounted for approximately 6% of the natural gas produced in Russia, providing approximately 10% of total natural gas deliveries through the UGSS to the domestic market, according to the CDU-TEK


Nunaoil A/S

Greenland has a reputation of being covered by ice and surrounded by icebergs and sea ice with Polar Bears walking the streets of the capital Nuuk. Apart from the fact, that the interior of Greenland is covered by ice, this is all fiction. Offshore the southwest coast of Greenland, in the southern Davis Strait and the northeastern Labrador Sea, icebergs are infrequent, sea ice is not present at all, and offshore operations are possible year-round. In the Northwest Greenland region sea ice forms annually in the Baffin Bay area and progresses southwards to the the northern Davis Strait area. This sea ice retreats during the summer and leaves room for operational windows until late autumn where sea ice formation starts anew.




Occidental Petroleum Corp.

Occidental Petroleum Corporation (NYSE:OXY) is an international oil and gas exploration and production company — the fourth-largest in the U.S., based on market capitalization — and our OxyChem subsidiary is a major North American chemical manufacturer.


Odyssey Petroleum Corp.

Odyssey Petroleum has changed its name to Petrichor Energy Inc. The new company, Petrichor Energy is an emerging oil and gas exploration company focused on sourcing and developing new oil and natural gas reserves in North and South America. The company expects to have its new website published on the Internet in the next few weeks.


OGDCL (Pakistan)

OGDCL is the national oil & gas company of Pakistan and the flagship of the country’s E&P sector. The Company is the local market leader in terms of reserves, production and acreage, and is listed on all three stock exchanges in Pakistan and also on the London Stock Exchange since December 2006. The Company is all set to ride the wave of E&P activity, equipped with its Vision & Mission, Business and Strategic Plan, a debt-free and robust balance sheet and healthy cash reserves. The Company is ready to take on the challenges of a volatile E&P industry. 


Oil & Natural Gas

Open Range Energy Corp.

Open Range Energy Corp. is a publicly traded Canadian energy company based in Calgary, Alberta with focused operations in the Deep Basin region of west central Alberta. Since its founding in late 2005 Open Range has grown from production of approximately 400 boe per day to a rate of 2,451 boe per day in Q4 2008. This growth has been achieved entirely through the drill bit.


Orca Exploration

Orca Exploration is an international public company engaged in hydrocarbon exploration, development and supply of natural gas in Tanzania, oil exploration in Italy and the development of high potential oil exploration and production opportunities in Europe, the Middle East and Africa. Orca and its employees are committed to ethically, socially and environmentally responsible development.


Orleans Energy

RMP Energy Inc. is a junior oil and gas company with high-quality assets concentrated in West Central Alberta and southeastern Saskatchewan.


Osage Energy Resources

Osage Energy Resources LLC, is a privately held oil and gas exploration and production company located in northeast Oklahoma. The corporate office is located in Bartlesville with a field office in Pawhuska. The Main shareholders have considerable interests in Africa, India UK and now USA




Pacific Rubiales

Pacific Rubiales is a public company listed on the Toronto and Colombian stock exchanges. The Company is the largest independent oil and gas exploration and production company in Colombia. Pacific Rubiales owns 100% of Pacific Stratus and Meta Petroleum Limited, two Colombian oil & gas operators which operate and own interests in, amongst others, the Rubiales and Piriri oil fields in Colombia’s Llanos Basin and the La Creciente natural gas field in northern Colombia.


Painted Pony Petroleum Ltd.

Painted Pony operations are focused in two core areas of the Western Canadian Sedimentary Basin. Our operations are focused in SE Saskatchewan for high netback, light, sweet oil and in NE British Columbia for high impact, multi zone, sweet gas.


Pan Orient Energy Corp.

Pan Orient is a Canadian publicly listed (TSX-V: POE) junior oil and natural gas company based in Calgary, Alberta, Canada. The Company's principal properties are divided into three distinct groups: 1) partially developed concessions located on-shore Thailand;  2) interests in production sharing contracts on-shore Indonesia; and 3) Canadian oil sand properties;


Panhandle Oil & Gas

The Company was founded in Range, Texas County, the Oklahoma Panhandle, in 1926, as Panhandle Cooperative Royalty Company and operated as a Co-op until 1979. At that time the Company was merged into Panhandle Royalty Company and its shares were registered with the SEC. On April 2, 2007 the Company’s name was changed to Panhandle Oil and Gas Inc


Paramount Resources

Paramount Resources Ltd. is a Canadian energy company which explores for, develops, processes, transports and markets petroleum and natural gas. Paramount has four operating units with distinct operating staff, capital budgets and targets in Kaybob; Grande Prairie; the Northern area which includes Northwest Alberta, the Liard Basin in the Northwest Territories and Northeast British Columbia; and the Southern area which includes production from southern Alberta, Montana and North Dakota. Paramount has adapted to a multitude of operating climates over the past 32 years and continues to record sustainable growth in value for shareholders.


Pearl Exploration and Production

Pearl Exploration and Production Ltd. ("Pearl" or the "Company") is a publicly held Canadian oil and gas company listed on the Toronto Stock Exchange under the symbol "PXX" and on the First North, (OMX Nordic Exchange) under the symbol "PXXS". The Company's focus is North American oil and gas interests, in particular, Alberta, Saskatchewan, Texas and California.


Penn Virginia Oil & Gas Corp

Headquartered in Radnor, PA and a member of the S&P SmallCap 600 Index, Penn Virginia Corporation (NYSE: PVA) is an independent oil and gas company engaged primarily in the development, exploration and production of oil and natural gas in various domestic onshore regions including Texas, Appalachia, the Mid-Continent and Mississippi.


Penn West

 In January 2011 Penn West Petroleum Ltd. converted from an income trust into an exploration and production company with Penn West now operating under the trade name Penn West Exploration (TSX: PWT, NYSE: PWE). Penn West is one of the largest conventional oil and natural gas producers in Canada. Penn West operates a significant portfolio of opportunities with a dominant position in light oil in Canada. Based in Calgary, Alberta, Penn West operates throughout western Canada on a land base encompassing over six million acres.




Petro Energy

Petro Energy  E&P is an oil & gas operating company with main objective is to explore, develop, and produce oil & gas in block 6 – Sudan



Petro Vista Energy

Petro Vista Energy Corp. (TSX.V:PTV) is an independent oil and gas exploration company currently in production in South America. The Company has exploration, development and production rights to over 727,031 gross leasehold acres (197,697 net) in Brazil and Colombia. The Company's goal is to build an upstream oil and gas company with exploration and production focused in the highest resource potential and commercially attractive countries in South America.


Petrobank Energy

Petrobank Energy and Resources Ltd. is an innovative Calgary-based oil and natural gas exploration, production and technology company with operations in Western Canada.




Petroleo Brasileiro SA (Petrobras)

We are a publicly traded corporation, the majority stockholder of which is the Government of Brazil, and we perform as an energy company in the following sectors: exploration and production, refining, oil and natural gas trade and transportation, petrochemicals, and derivatives, electric energy, biofuel and other renewable energy source distribution.


Petroleos de Venezuela, SA (PDVSA)


Petroleos Mexicanos


Petroleum Development of Oman (PDO)

PDO is the premier hydrocarbon exploration and production company in the Sultanate of Oman, and we hope that you will find this site both informative and interesting. We've tried to put together a mix of information that will give you an idea of who we are, what we do, how we do it and why.



Gran Tierra Energy Inc. is an international oil and gas exploration and production company headquartered in Calgary, Canada, incorporated and traded in the United States and operating in South America. The Company currently holds interests in producing and prospective properties in Colombia, Argentina, Peru and Brazil. The Company strategy is focused on establishing a portfolio of drilling opportunities to exploit undeveloped reserves to grow production, as well as undertaking exploration drilling to grow future reserves. 




PetroQuest Energy

PetroQuest Energy, Inc. is an independent energy company engaged in the exploration, development, acquisition and production of oil and natural gas reserves in East Texas, Arkoma Basin, South Louisiana and the shallow waters of the Gulf of Mexico.


Petro-reef Resources Ltd.

Petro-Reef Resources Ltd. is a Calgary- based crude oil and natural gas exploration and production company with producing properties in Alberta, Canada.



The Petroleum, Oil and Gas Corporation of South Africa (SOC) Limited (PetroSA), is South Africa's national oil company. It owns, operates and manages South Africa's petroleum industry commercial assets




Petsec Energy




Pine Cliff Energy Ltd.

Pine Cliff Energy Ltd. is a public company actively engaged in the acquisition of interests in petroleum and natural gas rights and the exploration, development and production of petroleum and natural gas.


Pinnacle Gas Resources, Inc.

Pinnacle Gas Resources, Inc. is an independent energy company engaged in the acquisition, exploration, and development of domestic onshore natural gas reserves. We strive to be a partner of choice with landowners, mineral owners, investors, and other energy developers, while acting as a model corporate citizen that positively impacts the communities where we live and work. Our corporate headquarters are located on historic Main Street in downtown Sheridan, Wyoming


Pioneer Natural Resources

Pioneer Natural Resources Company is a large independent exploration and production company with operations in the United States and South Africa.


Plains Exploration and Production Company


Polaris Resources


Premier Oil

Premier Oil plc is a growing FTSE 250 oil and gas exploration and production company with current interests in nine countries around the world. Our target is to deliver growth by building three quality businesses, in the North Sea, the Middle East/Pakistan and South East Asia.


ProspEx Resources

ProspEx has demonstrated that applying horizontal, multi-stage fracturing technology can revitalize conventional natural gas reservoirs in a challenging commodity price environment


Provident Energy

Provident Energy Ltd. is a Calgary-based corporation that owns and operates high quality midstream assets that include NGL extraction, fractionation, storage, transportation and marketing with access to markets across North America.




Qatar Petroleum Company


Quicksilver Resources

 Our company is widely recognized as a leader in the development and production of unconventional resources, including coal bed methane, shale gas, and tight sand gas in North America.




Ram Energy Resources

We are an independent oil and natural gas company engaged in the acquisition, development, exploitation, exploration and production of oil and natural gas properties, primarily in Texas, Louisiana and Oklahoma. Our producing properties are located in highly prolific basins with long histories of oil and natural gas operations. We have been active in our core producing areas of Texas, Oklahoma and Louisiana since our inception in 1987 and have grown through a balanced strategy of acquisitions, development and exploratory drilling. We have completed over 24 acquisitions of producing oil and natural gas properties and related assets for an aggregate purchase price in excess of $700.0 million. On November 29, 2007, we acquired Ascent Energy in a cash and stock transaction valued at $303.8 million. Through December 31, 2010, we have drilled or participated in the drilling of over 846 oil and natural gas wells, approximately 94% of which were successfully completed and produced hydrocarbons in commercial quantities. Our management team has extensive technical and operating expertise in all areas of our geographic focus.


Range Resources

Range Resources Limited (“Range” or the “Company”) is an oil and gas exploration, development and production company, which is dual-listed on the ASX (RRS) and AIM (RRL).Its principal activities are directed towards finding and delineating hydrocarbons with interests in Puntland, Somalia; the Republic of Georgia, onshore Texas, USA and Trinidad.


Repsol YPF


Rex Energy Corp.

Rex Energy Corporation is an independent energy company engaged in the acquisition, production, exploration and development of oil and gas, with properties concentrated in the Appalachian Region, Illinois Region and Rockies Region. We pursue a balanced growth strategy of exploiting our sizeable inventory of lower risk developmental drilling locations, pursuing our higher potential exploration drilling prospects and actively seeking to acquire complementary oil and natural gas properties. Our success is the result of the Company's seasoned and diversified management team comprised of expert personnel, using the latest technologies, and sound business practices.


Rio Petroleum

Rio Petroleum, Inc. began doing business in 1979, as the operating company of Barrett W. Pierce.  RIO, a Texas Corporation, is a regional oil and gas operator based in Amarillo. RIO currently serves as operator of producing oil and gas leases in Texas and Oklahoma.  The company has a full-time staff and several part-time employees and consultants.  RIO's staff devotes its time to the physical and administrative operation of the leases and to the evaluation and completion of new oil and gas related



 Roc Oil Company Limited (ROC) is one of Australia's leading independent upstream oil and gas companies. Incorporated in Australia, ROC listed on the Australian Securities Exchange (ASX) in 1999. ROC currently has approximately 713 million shares on issue. The company has a global workforce of approximately 180, located mainly in the Sydney and Beijing offices.


Rock Energy Inc.


Rosetta Resources

 Rosetta Resources is an independent oil and gas company based in Houston, Texas engaged in the exploration, development and exploitation of onshore energy resources in the United States of America. Our largest producing area is located in the Eagle Ford shale in South Texas and we hold a large exploratory position in the Southern Alberta Basin in northwest Montana.




Royal Dutch/Shell





Sandridge Energy

SandRidge Energy, Inc. is an oil exploration and production company headquartered in Oklahoma City, Oklahoma. SandRidge’s drilling activities are focused on its oil properties in the Permian Basin and Mid-Continent. The Company also maintains production in the regions of West Texas, the Gulf Coast and the Gulf of Mexico. In addition, Lariat Services, Inc., a wholly owned subsidiary of SandRidge, owns and operates a drilling rig and related oil field services business. 


Santos, Ltd. 

 An Australian energy pioneer since 1954, Santos is one of the country’s leading gas producers, supplying Australian and Asian customers. Santos has been providing Australia with natural gas from the remote outback for more than 40 years. The company today is the largest producer of natural gas to the Australian domestic market, supplying 16% of the nation’s gas needs.


Saudi Aramco

The world’s need for energy is growing, but so too is our ability to meet that demand. Our teams have been discovering new and better ways of delivering petroleum energy since 1933. Find out more about our leadership, our history and the people who make us the world’s leading integrated petroleum enterprise.

Saxet Petroleum 


Saxon Oil Company

Saxon Oil, a Tier One Texas-based Canadian company, is an independent oil and gas company engaged in the acquisition, development and production of oil and natural gas reserves. Saxon seeks to deliver strong shareholder returns through an effective exploration and development program that incorporates sound business practices with the latest oil field technologies. The goal is to steadily increase proven reserves of oil and natural gas – which, in turn, will lead to enhanced cash flows and earnings per share. 


Sea Dragon Energy

Sea Dragon Energy (SDX-TSX.V) Sea Dragon is primarily focused on North Africa and Sub-Saharan Africa. Currently our activities are concentrated in Egypt, where we have interests in two large concessions with short- and long-term potential. Our strategy also calls for gaining entry into other countries that offer significant potential and opportunities that would enhance the Company's growth within a reasonable timeframe.


Second Wave

Second Wave Petroleum is a growth-oriented junior oil and gas company focused on the production of crude oil and natural gas in Western Canada. Second Wave is defined by its focus on oil resource plays, specifically at Judy Creek, Alberta and its unparalleled drilling inventory. The company is well-capitalized and is run by an experienced team of oil and gas industry professionals. Second Wave trades on the TSX under the symbol "SCS".


Seneca Resources

Seneca Resources Corporation, the exploration and production segment of National Fuel Gas Company, headquartered in Houston, Texas, explores for, develops and purchases natural gas and oil reserves in the Appalachian Region including the Marcellus Shale, and in California. 


Sentinel Rock Oil 

Senex Energy


ShaMaran Petroleum

ShaMaran Petroleum Corp. is a Kurdistan focused oil development and exploration vehicle. Its initial four projects in the region are the Pulkhana development/appraisal block, the Arbat and K42 exploration blocks as well as the newly acquired Atrush block. These projects are nearby and on trend with existing fields and recent discoveries.
Kurdistan lies within the northern extension of the Zagros Folded Belt. The area is highly underexplored and is currently undergoing a significant exploration and development campaign by over 40 mid to large size international oil companies.




Slawson Exploration

Slawson Exploration Company, Inc. is a privately held oil and gas exploration company founded by Donald C. Slawson in 1957.  Since its inception, SECI has drilled over 3500 wells in 10 states employing advanced techniques like 2D Seis/Strat in the early 80's, Horizontal drilling in the late 80's, large scale 3D AVO in California gas basins in the 90's and record-holding staged fracs for hydrocarbon harvesting in the oil resource plays throughout the Rockies


Sonangol Sonatrach

Sonatrach est la plus importante compagnie d’hydrocarbures en Algérie et en Afrique. Elle intervient dans l’exploration, la production, le transport par canalisations, la transformation et la commercialisation des hydrocarbures et de leurs dérivés.


South Oil Company - Iraq 

South oil company one of the major fundamental formations of Iraqi national oil company (INOC) ,it's the first nucleus and the basic of national direct investment projects in the seventies ,where the SOC was subsidiary to national company .Events and activities have escalated steadily and rapidly rising since the beginning of the seventies where investment and development stages of the north Rumaila field were completed,in three stages lead to rates production (42)million tons per year ,coincided with the expansion of works in all fields ,the expansion began with drilling works ,building and expanding production facilities and implementing investment projects associated with natural gas field in north and south Rumaila ,also developing new fields in Luhais , Saba , Nuhran Ben Ummer and oil fields inMaysan lay out exporting pipe line , expanding export facilities , infrastructure sites for the company . Coupled with provisional of service, housing and health care to company's staff, and achieve ambitious plans in fields of rehabilitation, development and creating institutes and centers for training, technical and administrative development. During the mid – seventies decree to nationalize the Basra oil company (BPC),also activities of Erab company in Maysan attachment to the oil operation and establishment to the national oil company ,the SOC classified as first company in Iraq and the eighth in production rating for global oil companies . The company activities were covered an area of geographical limits of their effectiveness (180)th/m² stretching from the Arabic Gulf to Hadeth .During the seventies period the maximum rates production from the south fields (2.75) million barrels /day ,and the plans were designed to reach the limits of (4) million barrels /day.


Southwestern Energy Co.


Spartan Exploration


St. Mary Land and Exploration Co.

 St. Mary Land & Exploration Company stockholders have approved a name change to SM Energy Company.  The name and logo change are a natural part of the transformation that the company has undergone over the last few years.  To learn more about the history of the St. Mary name and the rationale behind the name change,



Stealth Ventures

 Stealth Ventures Ltd. is a Canadian oil & gas company with its head office in Calgary, Alberta and its shares are listed for trading on the TSX Venture exchange under the symbol SLV. Stealth is focused on the exploration for, and the acquisition, development and production of, conventional and unconventional hydrocarbons, with a more detailed focus on the unconventional geological plays for the production of hydrocarbons derived primarily from shale, Coalbed Methane (CBM) and tight sand reservoirs


Stone Energy Corp.

 The MISSION of Stone Energy Corporation is to provide our shareholders with exceptional rates of return by helping to meet the world’s growing energy demand through the exploration, development and production of oil and natural gas reserves.The VISION of Stone Energy is to appropriately manage the risks inherent in the oil and gas industry while growing net asset value by focusing in margin advantaged, world class hydrocarbon basins. We also aspire to maintain top quartile share price performance relative to our peer group.


Storm Resources

 Storm Resources Ltd. is a new junior exploration and production company led by Brian Lavergne as President and CEO, Don McLean as CFO and Rob Tiberio as COO, along with other members of the Storm senior management team. Storm Resources Ltd. commenced operations on August 17, 2010 after certain assets were transferred to Storm as part of the Plan of Arrangement involving the sale of Storm Exploration Inc. to ARC Energy Trust. The primary asset transferred to the new entity was undeveloped lands totalling approximately 117,200 net acres in the Horn River Basin ("HRB"), Umbach and Cabin/Kotcho/Junior areas in north eastern British Columbia, plus undeveloped land in the Red Earth area of Alberta. In addition, Storm Resources Ltd. retained share ownership positions in Storm Gas Resource Corp., Bellamont Exploration Ltd., Bridge Energy Norge ASA and Chinook Energy Inc.


Stream Oil & Gas

Stream Oil & Gas Ltd ("Stream") is a Canadian based emerging oil & gas production, development, and exploration company.
Stream is currently focused on the re-activation and re-development of its currently producing Albanian projects: three on-shore heavy oil fields, Cakran-Mollaj, Ballsh-Hekal and Gorisht-Kocul and one onshore producing gas field, Delvina. Under petroleum agreements with Albpetrol SH.A, the Albanian state exploration and production company and 25-year license agreements with Albania's National Petroleum Agency (AKBN), Stream has the right to takeover all wells in the four fields, and is entitled to a share of current baseline production and 100% of all incremental production. Stream, led by a technically experienced management team, is implementing modern and enhanced recovery techniques for carbonate reservoirs.


Suncor Energy



 Oil and gas producer Surgutneftegas is one of the largest companies in the Russian oil sector. It accounts for almost 13% of the country’s crude output and 25% of gas produced by domestic oil companies. Over many years, the company has been leading the industry in terms of exploratory and development drilling, as well as the number of production wells brought on stream. The company was the first in Russia to develop the complete cycle of gas production and processing, gas-based power generation, and output of finished products and petrochemical feedstock. Fifty-nine divisions of the company are involved in the whole range of prospecting and reservoir management operations, construction of facilities and pipelines, environmental safety, and process automation. Surgutneftegas’ crucial competitive advantage lies in advanced petroleum production technology successfully applied by its own service subdivisions. Oil is supplied to Russian refineries and exported to CIS and Western Europe.


Swift Energy Corp.

Our founder, the late A. Earl Swift, believed that the mission and culture of an organization defined its reason for being. During 2007 and 2008, Swift Energy Company formalized and elaborated on its operating philosophy using a participatory process consistent with the company's founding principles.
At the end of this process, with input from our employees, we developed the updated vision and mission statements.




Talisman Energy

Talisman Energy Inc. is a global, diversified, upstream oil and gas company, headquartered in Canada. Talisman's three main operating areas are North America, the North Sea and Southeast Asia. The Company also has a portfolio of international exploration opportunities. Talisman is committed to conducting business safely, in a socially and environmentally responsible manner, and is included in the Dow Jones Sustainability (North America) Index. Talisman is listed on the Toronto and New York Stock Exchanges under the symbol TLM.


Tammany Oil & Gas

Tammany Oil & Gas LLC is a Houston based firm that began operation in 2002. Acquiring mature oil and gas properties for the purpose of enhancing the overall asset value is the company’s main focus. Tammany operates in Louisiana and Texas with holdings offshore in Texas and Louisiana OCS waters. In addition to broad-based, in-house expertise, Tammany has affiliations that provide access to cutting edge technology in producing, drilling and completion methodology.


Taylor Hill Exploration Ltd.

 Taylor Hill Exploration Ltd. is a private oil and gas exploration and development company with a large inventory of plays and oil and gas interests in Alberta, Canada. This site shows a number of oil and gas business opportunities and geologic exploration projects owned by Taylor Hill. The company is incorporated in Alberta, Canada and has an office located south of Calgary, Alberta and one in downtown Calgary. The company explores for Canada's oil and gas resources in the Western Canadian sedimentary basin. Taylor Hill has an experienced management, which works with equally experienced oil and gas consultants who, in many cases, participate with Taylor Hill in oil and gas exploration and development activity.


Terra Energy Corp.

Terra Energy Corp. is a junior exploration and production company engaged in the exploration for, and development and production of, natural gas and oil in Western Canada. Our operations are concentrated primarily in northeastern British Columbia and the Peace River Arch region of Albert


Tethys Petroleum




Toce Energy

 Toce Oil and Toce Energy are companies engaged in exploration, exploitation, and acquisition of oil and gas properties located in South Louisiana. Toce has originated and marketed all of the oil and gas prospects it has been involved in since the company’s inception. It sells fractional working interests in its oil and gas prospects to listed and unlisted public corporations, drilling funds, and individuals. The company is responsible for the drilling, completion, and operation of most of the prospects generated; however, from time to time it has been a non-operator on a few of its prospects.




TRAFINA Energy Ltd.

 Trafina is a junior explorer and producer with significant heavy oil prospects in the McMullen area of northeast Alberta. The Company also has production and prospects in Pembina, Alberta and Rangeview /Divide in southwest Saskatchewan


Trans Pacific Oil

The history of oil exploration and production in Kansas goes back almost 100 years and that history is still being written today. Kansas ranks in the top 10 of oil and gas producing states, and it remains a fertile area for discovery of new petroleum resources. Kansas oil exploration and production has been dominated throughout its history by independent oil companies. Trans Pacific Oil Corporation has been a part of Kansas industry since 1980. As a small independent company, Trans Pacific Oil Corporation can take advantage of the conditions that make the Kansas oil business attractive for investment.


TransAtlantic Petroleum

TransAtlantic Petroleum Ltd. is a vertically integrated, international energy company engaged in the acquisition, development, exploration, and production of crude oil and natural gas. The Company holds interests in developed and undeveloped oil and gas properties in Turkey, Morocco, Bulgaria and Romania. The Company owns its own drilling rigs and oilfield service equipment, which it uses to develop its properties in Turkey and Morocco. In addition, the Company's drilling services business provides oilfield services and drilling services to third parties in Turkey and Iraq.


TransGlobe Energy

TransGlobe’s combined properties contain a multi-year prospect inventory in prolific international hydrocarbon basins, focused in the Middle East /North Africa Region. TransGlobe became an international operator through its farm-in at Nuqra inthe Arab Republic of Egypt ("Egypt") in July 2004, attaining an objective the Company’s management team had focused on for a number of years. Additional acquisitions in Egypt, notably in the West Gharib area, followed in 2007 and 2008. TransGlobe’s team quickly demonstrated its significant technical and operational skills, applying technology and capital to the low-risk, development-oriented fields and achieving production increases in short order. In January 2010, TransGlobe farmed in on a 50% working interest in the East Ghazalat Concession in the Western Desert of Egypt.  In March 2011, TransGlobe announced the signing of a Sale and Purchase Agreement to acquire a 100% working interest in the West Bakr Concession agreement in Egypt from The Egyptian Petroleum Development Co. Ltd. (of Japan), subject to customary due diligence, closing conditions and the approval of the Egyptian Government.


Triangle Petroleum

Triangle’s strategy is dually focused on the acquisition and development of acreage in the North Dakota Bakken Shale oil play and the development and exploitation of its existing asset base in the Maritimes Basin of Nova Scotia, where it currently holds an 87% interest in approximately 474,000 gross acres. In North Dakota, the company is actively seeking to build on its current 81,000 net acreage position by acquiring additional leasehold interests throughout the Williston Basin. Technology advancements in drilling and completion techniques have unlocked the significant resource potential of the Bakken Shale, expanded the scope of the play, and increased the potential reserve additions and production profile of successful wells. Management is focused on capturing this resource for the benefit of Triangle shareholders at an attractive cost.


Tullow Oil


Tuscany Energy

Tuscany is focused on growth through oil exploration and development. With its extensive prospect inventory, developed over the past two years, Tuscany believes it can achieve significant growth by continuing to develop its Dina oil properties at Evesham and Macklin, and adjacent Lloydminster heavy oil projects from available working capital and cashflows.





Ultra Petroleum

Ultra Petroleum is a leading independent energy company actively engaged in the exploration and production of oil and natural gas. We are uniquely focused on delivering profitable growth and consistent, sustainable financial performance.




Vaalco Energy

VAALCO employs nearly one hundred people in total on two continents. About half of this number is located in Gabon supporting our exploration and production activities. In Angola, VAALCO employs approximately ten people taking care of the exploration and administrative matters in that country. The Houston headquarters employs approximately thirty people of whom nearly twenty are highly experienced technical staff with disciplines in production engineering, reservoir engineering, facilities engineering, civil and electrical engineering, geology, geophysics, and drilling.


Valiant Petroleum


Vanguard Natural Resources

 We are a publicly traded limited liability company focused on the acquisition and development of mature, long-lived oil and natural gas properties. Our primary business objective is to generate stable cash flows allowing us to make monthly cash distributions to our unitholders, and over time to increase our monthly cash distributions. Our properties are located in the Permian Basin in West Texas and New Mexico, the Big Horn Basin in Wyoming and Montana, the Arkoma Basin in Arkansas and Oklahoma, the Williston Basin in North Dakota and Montana, Mississippi, and South Texas.


Vecta Energy Corporation


Venoco Inc.


Vision Exploration LLC




W&T Offshore


Warren Resources, Inc.


West Energy Ltd.


West Isle Energy




WestFire Energy Ltd.


Whiting Petroleum Corp.


WhitMar Exploration Company


Williams Cos


Wintershall Holding AG


Woodside Petroleum





Yangarra Resources Ltd.


Yoho Resources


Zapata Energy Corp.


Zargon Energy

 Our core competency is oil exploitation, which we define as the application of technology to increase the recovery of undrained oil in existing reservoirs. It is a technically complex business and each oil reservoir is treated differently depending on the interrelationships of the reservoir rock, fluids, pressures, wells and surface facilities. We work in all three phases of oil reservoir exploitation: primary, secondary and, more recently, tertiary recovery projects.

Zone Energy LLC

Our objective is to seek capital appreciation and income generation principally through investments in various assets related to the oil and gas industry. Zone Energy acquires assets that consist primarily of producing and non-producing crude oil and gas reserves located in 58 target basins. We focus on properties with long-lived reserves and stable production profiles.


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