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TERMINOLOGY

E&P Companies

Abarta Oil and Gas Company ("AOG")
A leading independent developer of natural gas and oil reserves in the Appalachian Basin and other targeted areas within North America.

Abraxas Petroleum Corporation
Natural gas and crude oil exploration and production company with operations concentrated in western Canada, Texas and Wyoming.

Acclaim Energy Trust
A Calgary-based royalty trust focused on the development and acquisition of oil and gas reserves in Western Canada.

Adams Resources & Energy, Inc.
Engaged in the business of marketing crude oil, natural gas and petroleum products; tank truck transportation of liquid chemicals; and oil and gas exploration and production.

Aera Energy LLC
California's leading oil and gas producer, operating properties extending from the LA Basin in the south to Coalinga in the north. Aera Energy is jointly owned by Shell and ExxonMobil.

AGE Refining
Based in San Antonio, Texas, manufactures, refines and markets jet fuels, diesel products, solvents and other highly specialized fuels.

Agência Nacional do Petróleo (Brazil)
Brazilian oil company.

Alliance Resource Partners
Diversified producer and marketer of coal to major United States utilities and industrial users.

AltaCanada Energy Corp
Canadian based oil and gas exploration company.

Amadeus Energy Ltd
Oil and gas producer and explorer based in Perth, Western Australia and oil and gas fields in the USA, primarily in Texas and Southern Oklahoma.

Amerada Hess Corporation
Global independent energy company, operations in the United States, United Kingdom, Norway, Denmark, Equatorial Guinea, Gabon, Azerbaijan, Thailand and Indonesia.

American Energy Production
An Oil and Gas Lease Acquisition Company. The Company will specialize in acquiring oil and gas leases that have potential for increased oil and natural gas production utilizing new technologies, well workovers and fracture stimulation systems. Focus on the United States.

American International Petroleum Corporation
Involved in oil and gas exploration and development in Kazakhstan, and in refining, marketing and transportation of petroleum products in the United States.

American Shoreline, Inc.
Concentrates exploration activities from Colorado and Fort Bend Counties south to the Rio Grande River, Texas.

Ameritex Minerals, Inc.
A privately owned Texas based independent oil and gas exploration company utilizing 3-D seismic technology to generate large reserve exploration opportunities.

Aminex PLC
Currently produces oil and gas in the American states of Texas and Louisiana and in the Russian Republic of Tatarstan.

Ampak Oil Company
An independent oil and gas producer with a concentration of operations in south Texas.

Anadarko Petroleum Corporation
Actively explore in all of North America's high-potential areas, including the deepwater Gulf of Mexico, the prolific Texas and Louisiana basins, the deep basin and overthrust plays in the Western States, a variety of plays in Western Canada, and in both the North Slope and Foothills regions of Alaska.

Ancap
Uruguay energy producing company.

Anderson Oil Ltd
Texas oil and gas operator.

Anderson-Drake Partners
To build investment funds that offer the greatest amount of flexibility, diversification, tax benefits and partner-participation. Headquartered Dallas, Texas.

Anglo-Suisse Offshore Partners (ASOP)
A privately-owned, independent Oil and Gas Company headquartered in Houston, Texas.

Antares Energy
Independent exploration and production company in Australia.

Antero Resources Corporation
Exploration and production (E&P) company focused on acquiring and developing non-conventional natural gas properties in the Mid-Continent and Rocky Mountain Regions of the United States. Non-conventional play types for Antero include tight sands, refracture stimulation of tight sand reservoirs, fractured shale and coal bed methane.

Antioch Energy
Organize and manage operations in upstream activities; explore, acquire, exploit, develop and produce oil and natural gas in Texas.

Antrim Energy Inc.
Oil and gas exploration in Argentina, Australia, United Kingdom, and Tanzania.

Apache Corporation
A leading independent oil and gas exploration and development company with core operations in the United States, Canada, Egypt, the United Kingdom North Sea and Western Australia.

APF Energy Trust
Oil and gas properties located in Western Canada.

ARC Energy NL
Australian petroleum exploration and production company. It produces gas from its the onshore Dongara and Beharra Springs Fields and oil from its Hovea and Eremia, Jingemia and Mt Horner Fields in the Northern Perth Basin.

ARC Energy Trust
Located in Calgary, Alberta, which is situated in the foothills of the Canadian Rocky Mountains. Alberta is a province rich in oil and gas and as a result Calgary has developed into a thriving centre for oil and gas producers.

Arena Resources
An Oklahoma-based oil and gas exploration, development and production company with current operations in Texas, Oklahoma, Kansas and New Mexico.

Aries Energy
Operates in the Permian Basin, Mid-Continent, Michigan and the Gulf Coast.

Aruba Petroleum Incorporated
Full service operating company in the Barnett Shale Natural Gas formations of Wise and Denton Counties, Texas, and conglomerates, Barnett shale, and Ellenberger plays in Montague County of Texas and in the North Andarko Basin in Oklahoma.

Ascent Energy Inc
An independent energy company engaged in the acquisition, exploitation, exploration, development and production of natural gas and crude oil, focus in Texas and Oklahoma.

Aspen Exploration Corp.
Gas exploration and production company operating primarily in northern California.

Aspen Integrated Oil & Gas, L.L.C.
Aspen operates over 300 wells in North Texas and West Texas.

Aspen Operating Company
Active in many areas of onshore U.S. Aspen's primary focus area is the Permian Basin.

Atlantic Petroleum
Exploration in the Faroese and the UK sector of the North Sea.

Atlas Energy Resources
An energy company focused on the production of natural gas in the Appalachian Basin of the U.S.

ATP Oil & Gas Corporation
In the development and production of oil and natural gas in the offshore Gulf of Mexico and the North Sea.

Aurora Gas
A family of privately held companies dedicated to resource development in South Central Alaska.

Australian Worldwide Exploration Limited
Oil and gas exploration and production company with oil and gas interests in Australia, Argentina, New Zealand, and Papua New Guinea.

Axis Energy Corporation
Has interest in over 2000 oil and gas properties in twenty states, and operates in Texas, Louisiana, Okalahoma.

B & R Energy
Engaged in the exploration and production of oil and gas in the onshore U.S. Offices in Bryan, Texas.

Bandera Petroleum, Inc.
Operates an oil and gas exploration program in the mid-continent area, focus on producing wells in Oklahoma, Texas, New Mexico and Arkansas.

Barnwell Industries, Inc.
Engaged in the business of exploring for, developing, producing, and selling natural gas and oil in Canada.

BASA Resources, Inc.
Owns and operates wells in approximately 60 fields in Texas.

Baytex Energy Trust
Development, acquisition and production of oil and natural gas in the Western Canadian Basin.

Beach Petroleum
Primarily focused upon the Cooper/Eromanga Basin of South Australia and Queensland.

Benson & Schoen Oil Co, Inc.
A bonded operator currently responsible for 70 wells in the West Central Texas area.

Berry Petroleum Company
Principal reserves and producing properties are located in the San Joaquin Valley, Los Angeles and Ventura basins in California and the Uinta Basin in northeastern Utah. Berry also owns three cogeneration facilities in California which produce electricity and provide Berry with steam for its California heavy oil operations.

Bettis, Boyle & Stovall
Oil & gas producers, Graham, Texas.

BG Group
Building and supplying natural gas markets around the world. We operate in four key business sectors – Exploration and Production, Liquefied Natural Gas, Transmission and Distribution, Power Generation.

BG Group (British Gas)
The discovery, extraction, transmission, distribution and supply of natural gas to existing and developing markets around the world, core skills include exploration and production, transmission, through pipeline systems or LNG liquefaction and transport.

BHP Billiton
BHP Billiton was created through the Dual Listed Companies (DLC) merger of BHP Limited (now BHP Billiton Limited) and Billiton Plc (now BHP Billiton Plc).

Bison Energy Partners
Complete drilling, completion, and workover well programs. Headquartered in Houston, Texas.

Black Hills Exploration and Production
Operates 382 oil and gas wells, Colorado, Nebraska, and Wyoming. Owns a non-operating working interest in a total of 424 wells located in California, Colorado, Gulf of Mexico, Louisiana, Montana, North Dakota, Oklahoma, Texas, and Wyoming.

Black Rock Petroleum NL
Geographical focus remains on Europe, the Mediterranean and Middle East and Australia.

Blue Dolphin Energy Company
Acquisition and development of oil and gas properties, and the gathering and transportation of natural gas and condensate. Primary geographical focus areas are the Texas and Louisiana Gulf Coast and the Gulf of Mexico shelf.

Blue Ridge Group
An independent oil and gas company engaged in exploration, development, acquisition and operation of oil and gas properties, focusing in the Gulf Coast region of Texas and Louisiana.

Blueknight Energy Partners
Owns and operates a complementary network of Midstream assets in the United States that are located from coast to coast. Midstream services that keep energy flowing throughout the nation: gathering, transporting, terminalling and storing energy commodities, strategically located storage facilities, terminals and pipelines provide customers the flexibility to access multiple receipt and delivery points.

BlueStone Natural Resources
Primary areas of focus are South Texas, East Texas, the Texas Panhandle and Western Oklahoma.

Bois d'Arc Energy
Exploration company focused on Gulf of Mexico Shelf. Headquartered Houston, Texas.

Bommer Engineering Co.
Have been drilling and completing wells for over thirty years. We handle the design and implementation of all phases of the drilling and completion process. Offices - San Antonio, TX.

Bow Valley Energy Ltd.
Development projects in the North Sea and western Canada.

BP Corporation
BP is about discovering, producing and marketing the natural energy resources the world depends on.

BPI Industries Inc.
Primary focus is on developing and expanding its Coalbed Methane assets in the Illinois Basin.

Braka Operating LLC
An active oil and natural gas producer/operator located in Eastland County, Texas.

Brammer Engineering, Inc.
Provide engineering, operational, land and accounting expertise to companies active in the Upper and Lower Gulf Coast Regions.

BreitBurn Energy
Exploration and development focus on California and is active in the Rockies.

BreitBurn Energy
One of the largest independent oil companies in California.

BRG Petroleum Corporation
Operations are located primarily in East Texas, Western Oklahoma, Southeastern New Mexico and the Texas Panhandle.

Brigham Exploration Company
Exploration and development activities are concentrated in the onshore Texas Gulf Coast, the Anadarko Basin of western Oklahoma and the Texas Panhandle and West Texas.

Brisita Energy Corporation
Operates wells in East Texas and West Texas and owns non operating interest in these areas.

Browning Oil Company
Currently operates Austin Chalk wells out of its production office in Giddings, Texas as well as Louisiana.

Burks Oil & Gas Properties,
Provides extensive property divestment and acquisition services to the upstream petroleum industry.

Burlington Resources
Independent oil and gas exploration and production company.

BWAB Incorporated
Interest in oil and gas properties in Alabama, Arkansas, California, Kansas, Louisiana, Michigan, Mississippi, Montana, Nebraska, New Mexico, North Dakota, Oklahoma, Pennsylvania, Texas, Utah, West Virginia and Wyoming.

C W Resources
East Texas producer.

Cabinda National Petroleum (CNP)
Authorized oil and gas firm licensed by the Republic of Cabinda for onshore oil and gas exploration and production.

Cabot Oil & Gas Corporation
A leading domestic independent natural gas producer and marketer with substantial interests in the Gulf Coast, including onshore Texas and Louisiana; the West, with the Rocky Mountains and Mid-Continent; and the East.

Cairn Energy plc
Defined by concentrating on the geographic region of South Asia, exploration and production in both west and east India and in Bangladesh.

Calik Enerji Oil and Gas
Drilling operations in Turkmenistan and Turkey.

Callon Petroleum Company
Exploration, development, acquisition and operation of oil and gas properties geographically concentrated in Louisiana, Alabama and offshore Gulf of Mexico.

Caltex Energy
Comprehensive energy sales and service to California companies including natural gas and power sales, energy management services, electric demand side management, consulting and project management.

Calvin Resources
Participated in the drilling of over seventy wells in the East Texas Salt Basin, as well as the drilling of one of the first true coalbed methane tests in the State of Texas.

Cambrian Management
Currently operates over 160 wells in west Texas and southeast New Mexico and provides drilling project management.

Camden Resources, Inc.
An exploration and production company with a focus on South Texas.

Canada Southern Petroleum Ltd.
Engaged in the exploration for and development of oil and gas reserves in Canada.

Canadian Natural Resources Limited
Focused in Western Canada, the North Sea and offshore West Africa.

Canadian Oil Sands Trust
In the Alberta Oil Sands.

CanArgo Standard Oil Products
An oil company with a chain of branded service stations with modern design and wide services profile in the territory of Georgia, Russia.

CanBaikal Resources Inc.
To pursue the opportunities created by privatization of the Russian petroleum industry.

Canetic Resources Trust
Conventional oil and gas trust in North America with access to a number of Canada’s highest quality conventional oil and gas plays.

Cano Petroleum
Focuses on Cano Petroleum The viewer is strongly urged to review the Cautionary Statements. Cano Petroleum View the Statement secondary and enhanced oil recovery techniques to extract additional oil from mature onshore U.S. fields. Based in Fort Worth, Texas.

Cantera Resources, Inc.
Texas independent producer.

Capital Engineering
Specialized in the consulting, engineering and design in Oil and gas, mining, extraction, pipelines, utilities.

Caprock Operating
West Texas producer.

Carnarvon Petroleum Ltd.
An oil and gas exploration and production company with oil and gas assets in Australia, Thailand, and Papua New Guinea.

Carr Resources
Exploration and production, Texas and Oklahoma.

Carrizo Oil & Gas, Inc.
A Houston based independent energy company engaged in the exploration, development and production of natural gas and oil focused in trends along the onshore Gulf Coast in Texas and Louisiana.

Catalyst Energy
Headquartered near Pittsburgh, Pennsylvania, is engaged in oil and natural gas development in the Appalachian region of the United States.

CDX Gas
Operations throughout North America to produce unconventional natural gas found in coal beds, shale and other tight reservoirs.

Centurion Energy International Inc.
Headquartered in Calgary, Alberta, Canada focused on exploration and production in North Africa.

Centurion Resources
Focused on the exploitation and expansion of its natural gas properties in the Texas Panhandle, Oklahoma, Arkansas, Kansas, and New Mexico.

Century Exploration
Oil and gas development onshore and offshore Gulf Coast Texas and Louisiana.

CGX Energy Inc.
Canadian-based oil and gas company focused on exploring for oil in the Guyana-Suriname basin. Licences in Guyana cover 9.8 million gross acres, 7.7 million net.

Chalker Energy Partners
Natural gas oriented E&P company in the gas basins of Texas.

Chaparral Resources, Inc.
Focus areas include the Republic of Kazakhstan and other independent countries within the former Soviet Union.

Cheniere Energy
A Houston-based developer of LNG receiving terminals and a Gulf of Mexico E&P company.

Chesapeake Energy Corporation
Primary operating area - the Mid-Continent region of the United States, which includes Oklahoma, western Arkansas, southwestern Kansas and the Texas Panhandle, the Permian Basin region of western Texas and eastern New Mexico and the onshore south Texas and Texas Gulf Coast regions.

ChevronTexaco - Crude Postings
Crude oil posting prices.

ChevronTexaco Corp
Ranks among the world's largest and most competitive global energy companies. Engaged in every aspect of the oil and gas industry, including exploration and production; refining, marketing and transportation; chemicals manufacturing and sales; and power generation.

Chief Oil & Gas
A Dallas-based, privately held, independent oil and gas company engaged in the exploration, development and production of natural gas reserves in the Fort Worth Basin of North Texas.

China National Offshore Oil Corporation (CNOOC)
Exclusive rights and overall responsibilities for the exploitation of oil and natural gas resources offshore Republic of China.

Chinese Petroleum Corporation (CPC)
State-run enterprise, our company is responsible for the development and supply of petroleum and natural gas, and is the core of Taiwan's petrochemical industry.

Chisos Operating, Inc.
Formed in 1980 to operate and develop oil and gas producing properties. Focus in Texas and Southwest.

Cholla Petroleum, Inc.
The primary focus of our activity has been in the Fort Worth Basin, Bend Arch area of North Central Texas, and the Eastern Shelf of the Permian Basin in West Texas and the Sherman-Maryetta Basin north of Dallas.

Chrome Energy Corporation
Operating companies in Nigeria and the United States of America.

CICO Oil & Gas Company
Independent oil and gas company with focus on on-shore gas trends in the gulf coast area of the state of Texas.

Cimarex Energy Co.
Independent oil and gas exploration and production company focused on the Anadarko Basin of western Oklahoma, along the Gulf Coast of Texas and Louisiana, the Mississippi Salt Basin, and northern California. We also have operations in north and south Texas, Kansas, New Mexico, Wyoming, and Montana.

Cinergy Marketing & Trading, LP
The natural gas origination and trading arm of Cinergy Corp.

Circumpacific Energy Corporation
A Canadian oil and gas exploration company.

Cirrus Production Company
Primarily engaged in oil and gas operations in the Mid Continent Area.

Citation Oil & Gas
Independent oil and gas acquisition, development and production company with concentrated positions in the Permian Basin, Rocky Mountain and Mid-Continent Regions. Headquartered Houston, Texas.

CITGO Petroleum
Company is owned by PDV America, Inc., an indirect, wholly owned subsidiary of Petróleos de Venezuela, S.A., the national oil company of the Bolivarian Republic of Venezuela.

CityView Corporation Limited
Oil ang gas interests in Indonesia and The Phillipines.

Clarke Energy
A leading worldwide Energy Systems Company offering a wide range of green power generation solutions.

Claude Resources Inc.
A gold mining company with oil and gas assets based in Saskatoon, Saskatchewan.

Clayton Williams Energy, Inc.
An independent exploration and production company that develops and produces oil and natural gas. Operates primarily in Texas, Louisiana, New Mexico, and Mississippi.

Cleco Corporation
An energy services company based in central Louisiana.

Coastal Plains Energy
Oil and gas operator in both Oklahoma and Texas.

Cobra Energy Company
Active presence in the Mid-Continent region of Kansas, Oklahoma and Texas and the Permian Basin of Texas, while developing a core foothold in the prolific Gulf Coast region of Texas.

Columbia Energy
Engaged in the exploration, production, purchase, marketing, storage, transmission, and distribution of natural gas, as well as other forms of energy.

Compton Petroleum Corporation
Engaged in the exploration, development and production of natural gas, natural gas liquids and crude oil in the Western Canadian Sedimentary Basin.

Comstock Resources
Primarily located in four geographically focused areas, East Texas/North Louisiana, Gulf of Mexico, Southeast Texas and the South Texas regions.

ConocoPhillips - Crude Oil Postings
Crude oil posting prices.

ConocoPhillips, Inc
International, integrated energy company. It is the third largest integrated energy company in the United States, based on market capitalization, oil and gas proved reserves and production; and the largest refiner in the country.

Contango Oil & Gas
Houston-based, independent natural gas and oil company, focus on onshore in the Gulf Coast and offshore in the Gulf of Mexico.

Continental Energy Corporation
Concentrates its efforts in Indonesia.

Continental Resources
Engaged in the exploration, exploitation, development and acquisition of oil and gas reserves, primarily in the Rocky Mountain and the Mid-Continent regions of the United States.

COPAS of Abilene
Petroleum Accountants Society of Abilene.

Coronado Resources
Headquartered in Tulsa, Oklahoma. Focused on the acquisition and exploitation of a balanced portfolio of unconventional natural gas reserves (e.g. coal bed methane, tight gas sands, and shales).

Corridor Resources Inc.
Focus on exploration opportunities in eastern Canada, including the onshore regions.

Credo Petroleum Corporation
Natural gas drilling in the Northern Anadarko Basin.

Crest Petroleum Bhd
One of the largest local Malaysia company that specializes in marine installation, offshore construction, oil and gas wells drilling and providing marine services.

CrossPoint Energy
An exploitation, development and production company headquartered in Frisco, TX.

Crosstex Energy, L.P.
Independent Texas midstream energy services company engaged in the gathering, transmission, treating, processing and marketing of natural gas.

Crown Energy Company
Oil and gas operator based in Oklahoma City, OK.

Crystal River Oil & Gas LLC
Oil and gas operatored headquartered in Encinitas, California.

Curlew Lake Resources Inc.
Independent oil and natural gas, and precious metals, exploration, development and production company with operations in western Canada and the United States.

D & L Energy Group
An independent natural gas and oil exploration, production and marketing group that develops and produces oil and natural gas wells in Ohio and Pennsylvania.

Dana Petroleum plc
An independent oil and gas company focused on exploration and development from the UK North Sea.

Dart Energy Corporation
A diversified organization with interests in crude oil and natural gas exploration and production; oilfield related transportation, construction, drilling and production services; and crude oil and petroleum products transportation, storage, sales and distribution. Corporate offices in Mason, Michigan.

Davis Petroleum
Primarily in the Gulf of Mexico Shelf and onshore Louisiana and Texas. Headquartered Houston, Texas.

DayStar Oil & Gas Corp
Participation from simple recompletions to re-entries and infield developmental drilling.

Delta Petroleum Corporation
Has producing properties in 15 states and interests in one producing federal unit and four undeveloped units located in federal waters offshore California near Santa Barbara.

Denali Oil & Gas
Acquire and develop natural gas reserves in tight gas basins in South Texas and North Louisiana.

Denbury Resources Inc.
Independent oil and natural gas company engaged in acquisition, development and exploration activities in the Gulf Coast region of the United States.

Derek Oil & Gas Corporation
Oil and gas exploration in North Eastern Wyoming.

Dernick Resources, Inc
Develops and operates energy projects involving oil and natural gas exploration, reserve acquisitions, gathering systems, pipelines, and natural gas marketing, including but not limited to the Gulf Coast, Mid-Continent, Hugoton, Rocky Mountains, and Appalachian regions.

Devon Energy Corporation
U.S.-based independent oil and gas producer and one of the largest independent processors of natural gas and natural gas liquids in North America.

Dewbre Petroleum Corporation
In the Gulf Coast and South Texas region.

Diaz Resources Ltd.
Gas production in Alberta and Texas.

DinoTech Corporation
Oil technology investments and investing in oil and gas recovery providing economic solutions, consulting experience in developing, marketing and manufacturing proprietary ultrasound technologies.

Dominion Cove Point LNG, LP
Located on the Chesapeake Bay in Cove Point, Maryland, south of Baltimore. It is the nation's largest liquefied natural gas (LNG) import facility.

Dominion Exploration & Production
The natural gas exploration and production subsidiary of Dominion.

Double Eagle Petroleum Co.
A Casper,Wyoming based oil and gas company with principle activities in the Rocky Mountain Region of the United States.

Dragon Oil Plc
Principal interests are located in the Cheleken Contract Area in the Caspian Sea, offshore Turkmenistan.

Durango Resources Corporation
A company which both operates oil and gas properties and has investments in oil and gas properties. Headquartered Houston, Texas.

E.ON
The world's largest investor-owned energy services provider.

Eagle Rock Energy Partners
Master limited partnership (MLP) that leverages its upstream, minerals and midstream expertise to acquire and operate oil and gas properties, natural gas gathering systems, and natural gas processing plants.

Eastex Crude Company
Texas crude oil purchaser.

Econergy
Project developer in clean energy projects in Latin America, the Caribbean (LAC) and other emerging economies.

EcoPetrol S.A
Headquartered in Bogotá, Columbia. State-owned oil company in Colombia active in exploration and production, refining and marketing, as well as transportation.

Edge Petroleum
Exploration, development, acquisition and production of crude oil and natural gas with operations focused onshore along the Gulf Coast and Northern Rocky Mountains of the U.S.

Edge Resources
Edge Resources LLC is a Fort Worth-based oil & gas exploration and production company focused on the acquisition and development of natural gas and oil reserves in the Barnett Shale play of Texas and other targeted North American areas.

EGL Resources
Specializes in oil & gas projects in the Permian Basin of West Texas and Eastern New Mexico.

El Paso Corporation
Provide natural gas and related energy products in a safe, efficient, dependable manner. The owns North America’s largest natural gas pipeline system and one of North America’s largest independent natural gas producers.

Emerald Energy Plc
Engaged in exploration and production of hydrocarbons in Colombia.

ENAP
Chile National oil and gas exploration company.

Enbridge Inc.
Operates in Canada and the U.S., the world's longest crude oil and liquids pipeline system.

Enbridge Pipelines (East Texas) L.P
Consists of 2,251 miles of natural gas transmission and gathering lines in East Texas, ranging from 4 to 20 inches in pipeline diameter.

EnCana
Exploration and production operator in the U.S. Rocky Mountains and Western Canada.

Encore Acquisition Company
A growing independent energy company engaged in the acquisition, development and exploitation of North American in four core areas: Montana, North Dakota, West Texas, Southeastern New Mexico, Oklahoma, Louisiana, the Barnett Shale, Texas; and the Rocky Mountains.

Endeavor Natural Gas
An independent oil and natural gas producer targeting natural gas reserve growth in the Texas and Louisiana Gulf Coast.

Enerfin Resources Company
Own and operate natural gas pipelines, compression, processing plants, treating facilities and oil & gas production.

Energen Corporation
Headquarters in Birmingham, Alabama. Alabama Gas Corporation (Alagasco), Energen's natural gas utility. Energen's oil and gas subsidiary, Energen Resources Corporation,.

Energy 2000, Inc.
Primary production areas are in the south Texas counties of Starr, Webb and Zapata.

Energy Africa
An African oil and gas exploration and production group with interests in nine countries on the continent.

Energy Partners Limited (EPL)
An independent oil and natural gas exploration and production company focused on the shallow to moderate depth waters of the Gulf of Mexico Shelf.

Energy Production Corporation
Privately held exploration and production corporation successfully conducting U.S. petroleum operations for 32 years. One of the U.S.’s leading small independent energy companies. Focus in Texas and Louisiana.

Energy Spectrum Advisors
Manages private equity funds that make direct equity investments in well-managed companies that own and operate energy assets.

Energy Transfer Partners
Midstream natural gas company with operations primarily located in major natural gas producing regions of Texas and Oklahoma.

Enerplus Resources Fund
Largest conventional oil and gas income fund in North America.

Eni Oil and Gas
Italian integrated energy company, operating in the oil, natural gas, and petrochemicals industries as well as oilfield services and engineering.

Enterprise Products Partners L.P.
A leading North American provider of midstream energy services to producers and consumers of natural gas, Natural Gas Liquids ( NGLs ) and crude oil. Enterprise transports natural gas, NGLs and crude oil through 32,670 miles of onshore and offshore pipelines, and is an industry leader in the development of midstream infrastructure in the Deepwater Trend of the Gulf of Mexico.

EOG Resources, Inc.
Independent (non-integrated) oil and gas companies in the United States and is the operator of substantial proved reserves in the U.S., Canada and offshore Trinidad, and to a lesser extent, the United Kingdom North Sea.

Equity Oil Company
Geographically concentrated core areas of operations in the Rocky Mountains, California and Canada.

Eratz Investments
Established 18 gas fields in Palo Pinto County, Texas.

Ergon Exploration
Mostly in Louisiana and the Wolf Creek prospect in East Texas.

Esprit Exploration Ltd.
(formerly Canadian 88 Energy Corp.) Strategy remains focused almost exclusively on natural gas on the western side of the Basin. Areas of focus include: Olds, West Central Alberta, High River/Medallion and Three Hills/Swalwell.

Essar Oil
Onshore drilling business in India since 1986.

ETech
Focus will be on Texas, Louisiana, Mississippi, Alabama, Wyoming, Montana and North and South Dakota.

Etruscan Resources Inc.
Focused on the exploration and development of diamond properties in South Africa and gold properties in West Africa.

EXCO Resources, Inc.
Texas based independent oil and gas company.

Explorer Pipeline
Operates a 1,400-mile pipeline system that transports gasoline, diesel fuel and jet fuel from the Gulf Coast to the Midwest. Explorer is based in Tulsa, Okla., and also serves Houston, Dallas, Fort Worth, St. Louis and Chicago.

ExxonMobil - Crude Oil Posting
Crude oil posting prices.

ExxonMobil Corp
Organization structure is built on a concept of global businesses and is designed to allow ExxonMobil to compete most effectively in the ever-changing and challenging worldwide energy industry.

Fairway Resources
An oil and gas acquisition, development and production company focused on undeveloped or under-developed acreage positions and properties in East Texas, North Louisiana and the Permian Basin.

Falcon Gas Storage
The largest privately-held underground natural gas storage company in North America.

Famcor Oil, Inc.
Among the hundred largest natural gas producers in the state of Texas and is the single largest natural gas producer in San Jacinto County, Texas.

Farmland Industries - Crude Oil Posting
Crude oil posting prices.

Felderhoff Production Co
Primarily operates in the state of Texas, but has operated in Oklahoma and Nevada.

Fidelity Exploration & Production Company
Engaged in natural gas and oil acquisition, exploration and production activities primarily in the Rocky Mountain region of the United States and in the Gulf of Mexico.

FieldPoint Petroleum
Texas based oil and gas operator.

Finley Resources Inc.
A privately held independent oil and gas producer. The company has holdings in Alabama, Mississippi, Louisiana, Texas, Oklahoma, and New Mexico.

Five States Energy Company
A private oil and gas investment company headquartered in Dallas, Texas. Mostly located in the southwestern and mid-continental United States, and they are all on-shore.

Flint Hills Resources - Crude Oil Posting
Crude oil posting prices.

Forest Oil Corporation
Principal reserves and producing properties in Alaska, Louisiana, Oklahoma, Texas, Utah, Wyoming and the Gulf of Mexico, and in Canada in Alberta, British Columbia, and the Northwest Territories.

Frisco Exploration Company LLC.
A Texas Independent Oil&Gas exploration company. Investments opportunities.

FX Energy, Inc.
Independent oil and gas company focused on exploration, development and production opportunities in the Republic of Poland.

Gaither Petroleum Corporation
Operates in Gulf Coast oil field properties and is extending its reach in to the international arena, specifically focusing its efforts in North Africa and the Middle East.

Gary-Williams Energy Corporation
Refining and wholesale marketing are now the company's primary businesses at the company's major asset of a 50,000 BPD crude oil refinery in Wynnewood, Oklahoma,.

Gasco Energy, Inc.
Focused on natural-gas-rich prospects in the Rocky Mountain area of the United States.

Gateway Energy Corporation
Owns and operates approximately 800 miles of natural gas gathering, transportation and distribution systems and related facilities in Texas, Oklahoma, and offshore in Texas and federal waters of the Gulf of Mexico.

Gateway Gathering & Marketing Company
Crude oil and natural gas purchasing & marketing services.

Genecov Group, The
Responsible for the management of the mineral and leasehold ownership of the various oil and gas limited partnerships owned by the Genecov family. Headquartered in Tyler, Texas.

Genesis Energy, Inc.
An independent gatherer and marketer of crude oil concentrated in Texas, Louisiana, Alabama, Florida, Mississippi and New Mexico.

Gentry Resources Ltd.
Active in the Western Canadian Sedimentary Basin and has four core areas in Alberta.

GeoResources, Inc.
Oil and gas exploration and production operation in the Williston Basin.

Georex SA
Development of petroleum activities in France and abroad.

Gibraltar Energy Company
Active in the Black Warrior Basin of eastern Mississippi and western Alabama (the "Black Warrior Basin" or the "Basin").

Givot Olam Oil Limited
Oil and gas exploration and production company based in Israel.

Globex Resources Ltd.
A Calgary-based energy company engaged in the exploration, development and production of oil and natural gas in Western Canada.

GMX Resources Inc.
An independent natural gas producer, headquartered in Oklahoma City, Oklahoma with producing wells in Texas & Louisiana.

Golden Pass LNG Terminal LP
A Liquefied Natural Gas (LNG) receiving terminal located near Sabine Pass, Texas and an associated pipeline connecting to the existing U.S. pipeline infrastructure.

Goodrich Petroleum Corporation
An independent oil and gas exploration and production company focused primarily in the transition zone of South Louisiana and the East Texas cotton valley trend.

Grand Energy
The development of oil and natural gas in the United States, primarily in Texas, Oklahoma and Louisiana.

Gray Oil & Gas Company
Participates in projects exploring for and producing oil and gas reserves. Texas, Louisiana, Gulfcoast.

Great Western Drilling Company
Operates and participates in the exploration, production and acquisition of oil and gas reserves in eight states with offices and/or facilities in Midland, Fort Worth, Odessa, Sundown and Fort Stockton, Texas; Farmington and Lovington, New Mexico.

Greenstar Energy
Oil and gas company involved in the acquisition of working interest, royalty interests, overriding royalty interests from Oklahoma, Arkansas, and Texas.

Grey Wolf Energy
Oil and gas exploration. Headquartered Austin, Texas.

Griffin Petroleum
West Texas operator.

Gujarat State Petroleum Corporation Limited
GSPC is India's only State Government- owned company, in the Oil and Gas Exploration & Production (E&P) business. The Government of Gujarat holds approximately 95% equity stake in the company.

Gulfport Energy
Independent oil and gas company located in Oklahoma City, Oklahoma.

Gulftex Operating
Producer of crude oil and natural gas in the South Central United States, headquartered in Dallas, Texas.

H-M Oil Company
H-M Resources : Houston, Texas based exploration and production operator.

Harken Energy Corporation
Oil and gas exploration company.

Harvest Natural Resources
Producing operations are conducted principally through our 80 percent owned Venezuelan subsidiary, Harvest-Vinccler, C.A., which operates the South Monagas Unit in Venezuela.

Heartland Resources
Independently owned company whose corporate headquarters are located in Bowling Green, Kentucky. Partnered with industry leaders to develop properties in Kentucky, Louisiana, Oklahoma, and Texas.

HensOil Inc.
Dallas based oil and gas exploration company.

Hilcorp Energy Company
Exploration and production company with producing properties concentrated in the Gulf Coast areas of Texas and Louisiana.

Holifield Oil Company
Texas oil and gas operator.

Houston Exploration Company
An independent natural gas and oil company engaged in the exploration, development, exploitation and acquisition of domestic natural gas and oil properties. Operations are primarily focused in South Texas, offshore in the Gulf of Mexico and in the Arkoma Basin of Oklahoma and Arkansas.

Huber, J. M. Corporation
Concentrates on properties in the Texas Panhandle, offshore ventures in the Gulf of Mexico and coalbed methane natural gas operations in Colorado, Wyoming, Kansas and Utah.

Hunt Oil Company
Major production operations in the United States, Canada and Yemen. In addition, the company is playing a critical role in two large-scale gas development projects in Yemen and Peru.

Hunt Petroleum Corporation
Principal oil and gas exploration and production operations are located in Texas, Louisiana, Mississippi, North Dakota, the Gulf of Mexico and the Dutch sector of the North Sea.

Huntington Energy, L.L.C
Operations are concentrated in the Permain and Mid-Continent Basins of the United States.

Husky Energy
Focused in Western Canada, offshore Eastern Canada as well as in China.

Hyperdynamics Corp
A Houston-based oil and gas company focused on oil and gas exploration and production.

Hyperion Energy
Own and operate oil & gas properties and associated facilities, gathering systems and transmission including some twenty four hundred (2400) wells located throughout Texas, Louisiana, Oklahoma and Michigan.

Imperial Oil
One of the largest producers of crude oil in Canada and the country's biggest refiner and marketer of petroleum products.

Incline Energy
Primary focus of activity is in the Permian Basin area of West Texas.

INPEX Holdings Inc.
Engaged in surveys, exploration, development and production of oil, natural gas and other energy resources. Headquartered Tokyo, Japan.

InterOil Corporation
Fully-Integrated niche energy company in Papua New Guinea.

ITX Corporation
An energy production company located in Dallas, Texas.

Ivanhoe Energy
Production in the Spraberry Area of West Texas, at South Midway Sunset in the San Joaquin Basin of California and at the Dagang enhanced oil recovery project in China. Our medium term objective is focused on the deep natural gas potential of the San Joaquin Basin of California, the Bossier gas sands of East Texas and the Sichuan Basin of China.

J-W Operating Company
The design, fabrication, sale, rental and operation of natural gas compressors, gas measurement, gas gathering, processing, marketing, electric power generation, oil and gas exploration, drilling and production, and reservoir evaluation with offices in Colorado, Oklahoma, Texas, and Louisiana.

Japan Oil Development Corp
Oil exploration primarily in UAE. Wholly owned subsidiary of Inpex Group of Japan.

Japan Petroleum Exploration Co.
A government-owned Japanese E&P company.

JOMO Energy Company
Japan integrated energy supplier, with petroleum operations extending from exploration and development to refining and marketing.

Jones Energy
Core area is the Texas Panhandle. Headquartered in Austin, Texas.

Journey Oil & Gas, LLC
Independent oil and gas exploration headquartered in Houston, Texas.

JP Oil
Independent oil and gas producer based in Lafayette, LA, with properties throughout North America.

Justiss Oil Company
Provides contract drilling, consulting, exploration, well and lease service and general oilfield services across the southern gulf coast from Texas to Alabama.

K2 Energy Corp.
Exploration opportunity on the Blackfeet Indian Reservation in northern Montana.

KCS Energy, Inc.
Engaged in the acquisition, exploration and production of natural gas and crude oil with operations in the Mid-Continent and Gulf Coast regions.

KERN Partners
Independent energy sector private equity firm based in Calgary, Alberta, Canada.

Kerr-McGee Corporation
Company explores for oil and gas in selected basins around the world and has producing fields in the Gulf of Mexico, the U.K. sector of the North Sea and the South China Sea, and onshore in the United States.

Keyera Facilities Income Fund
Natural gas gathering and processing as well as NGL processing, transportation, storage and marketing at its facilities located in significant natural gas prone regions in the west central and foothills areas in western Alberta.

Killam Oil Co., Ltd
Independent producer of oil and gas with its primary area of activity in Webb, Zapata and Duval counties Texas.

Kimsu Oil Co.
Older oil & gas fields in south Louisiana.

Kinder Morgan, Inc.
Midstream energy company in America, operating more than 35,000 miles of natural gas and products pipelines across the United States.

Kirkpatrick Oil Company
Exploration company headquartered in Oklahoma City, OK.

Koch Supply & Trading - Crude Oil Posting
Crude oil positing prices.

Kraker Energy Corporation
A domestic independent oil and gas company with focus on exploration and the acquisition of proved properties in the Gulf Coast Region onshore and offshore in the Gulf of Mexico.

KROHNE Oil & Gas
Headquartered in The Netherlands.

Kuwait Petroleum Corporation
State-owned entity responsible for Kuwait's hydrocarbon interests throughout the world.

Lakes Oil N.L.
Australian oil and gas exploration with interests in Queensland, Victoria and South Australia, and in Papua New Guinea.

Laredo Petroleum, Inc.
Headquartered in Tulsa, Oklahoma, is an independent oil and gas company focused on the Mid-Continent Region of the United States.

Lario Oil & Gas
Operates in the Western United States.

Larron Energy Company
Oil and gas operator headquarterd in Illinois.

Latigo Petroleum Inc.
An independent oil and gas exploration and development company with headquarters in Tulsa, Oklahoma. Targeted area includes the Permian, Anadarko and Arkoma basins located in Texas, New Mexico, Oklahoma and Arkansas.

Legacy Royalties Ltd.
Oil and gas management services for royalty owners, review leases and division orders, and disburse the monthly net revenues to the owner. Professional petroleum engineering valuations for estate taxes, estate planning and other legal needs.

Legend Natural Gas
Explores and produces natural gas and crude oil in North America.

Linn Energy
An independent natural gas and oil company focused on the development and acquisition of long-lived properties.

Lockout Corporation
An independent oil and gas operator headquartered in Grapeland, TX.

Lone Wolf Operating Company
Operating and consulting services to the oil and gas industry in Kansas, Oklahoma, and Texas.

Longhorn Partners Pipeline
Pipeline to transport gasoline, diesel and jet fuel from Gulf Coast refineries to terminals in the Permian Basin and the El Paso gateway market.

Louis Dreyfus
Active in the international merchandising and trading of crude oil and petroleum products, natural gas, petrochemicals and plastic resins.

Lower Colorado River Authority (LCRA)
Texas based exploration authority.

Lukoil Overseas Holding Ltd.
Russian based exploration and production company.

M-C Production and Drilling
Specializes in reworking wells in the East Texas field to recover lost reserves.

Magellan Petroleum Australia Limited
Publicly-listed Australian company engaged in oil and gas exploration and production, principally in Australia.

Mangum Hunter Resources
Independent oil and gas producer.

Manti Resources
Oil and gas operations in Texas, Louisiana, Canada, and the South Pacific.

Maralo LLC
Active independent oil & gas producers in Texas, Maralo either operates or maintains an interest in over 1500 wells in the greater Permian Basin of West Texas and Southeast New Mexico as well as the San Juan Basin, South Texas and Louisiana .

Marathon Oil Corporation
Worldwide exploration and production of crude oil and natural gas, as well as the domestic refining, marketing and transportation of petroleum products.

Marbob Energy Corp
One of the largest family owned oil producers in New Mexico.

Mariner Energy
An independent oil and gas exploration, development and production company with principal operations in the Gulf of Mexico and West Texas. Headquarters are located in Houston, Texas.

Matador Resources Company
A Dallas-based, privately held, independent energy company engaged in oil and natural gas exploration, production, development, and acquisition activities in the Southwestern United States. The Company's primary focus is on natural gas operations in East Texas, North Louisiana, South Texas, and the Permian Basin of West Texas and Southeastern New Mexico.

Maverick Energy, Inc.
Illinois company in drilling and completion, lease management, and operations of hundreds of wells in the Illinois Basin.

McCombs Energy
Independent oil and gas operator headquartered in Houston, Texas.

McCutcheon Energy Company
Actively explores for crude oil and natural gas opportunities in the Rocky Mountain Region of the United States.

McMoRan Exploration
Develop and produce oil and gas offshore in the Gulf of Mexico and onshore in the Gulf Coast region of the United States.

MDU Resources Group, Inc.
Fidelity Exploration & Production Company is engaged in natural gas and oil acquisition, exploration and production activities primarily in the Rocky Mountain region of the United States and in the Gulf of Mexico. Montana-Dakota Utilities Co. and Great Plains Natural Gas Co. distribute natural gas.

MEDEA
Partner to Italian and foreign Operators interested in particular, to enjoy the opportunities offered by the liberalization of the European energy markets.

Meridian Resource Corporation
Independent oil and natural gas company engaged in the exploration for and development of oil and natural gas in south Louisiana, southeast Texas, and the Gulf of Mexico.

Merit Energy Company
Operations in 13 states (Texas and New Mexico), the Gulf of Mexico and Canada, with net production of approximately 87,000 barrels of oil equivalent per day.

Metano Energy
Located in San Antonio, TX, primary focus is exploration and development activities in the South Texas portion of the onshore Gulf Coast Basin.

Mewbourne Oil Company
Independent operator with operations in Texas, New Mexico, and Oklahoma. Headquartered in Tyler, Texas.

Miller Energy, Inc
An independent oil and gas exploration and production company with focus on natural gas in East Texas.

Miller Petroleum
Exploration and production in Tennessee.

Mineral Acquisition Partners (“MAP”)
Acquisition and management of natural gas royalty interests in high quality fields or projects in the onshore United States.

Miocene Oil & Gas, Ltd
Explore and develop oil and gas reserves in Texas and Montana.

Mission Resources Corporation
Independent exploration and production company that drills for, acquires, develops and produces natural gas and crude oil in the Permian Basin, along the Texas and Louisiana Gulf Coast and in the Gulf of Mexico.

Modern Exploration, Inc.
Specialize in south Texas where Modern has extensive experience in the geologic formations in that area. Headquartered in Sherman, Texas.

Montello Resources Ltd.
Focused on oil and gas properties located in Eastern Tennessee.

Mosaic Oil
Australia-based oil and gas exploration company with Surat Basin production and exploration licenses in Queensland, the North-West Shelf Australia, Papua New Guinea and New Zealand.

Mount Dakota Energy Corp.
Currently has producing properties in Alberta and Kansas.

Murex Petroleum
Engaged in the acquisition, development and operation of oil and gas properties in North Dakota, South Dakota, Montana, Nebraska, Kansas, Oklahoma, Texas, Louisiana and Mississippi.

Murphy Oil Co - Crude Oil Posting
Crude oil posting prices.

Murphy Oil Corporation
A worldwide oil and gas exploration and production company with refining and marketing operations in the United States and the United Kingdom and crude oil and natural gas exploration and production operations in Canada.

Mustang Fuel Corporation
Operations include gas and oil exploration and production, natural gas gathering and processing and natural gas marketing. Headquartered in Oklahoma City, Oklahoma.

Mærsk
Mærsk Olie og Gas is involved in exploration and production of oil and gas, while other Maersk companies are engaged internationally in maintaining, servicing, and securing these activities - offshore as well as onshore.

NAL Oil & Gas Trust
By acquiring, developing, producing and selling crude oil, natural gas and natural gas liquids in Alberta, Saskatchewan and Ontario.

National Cooperative Refinery Association
Crude oil posting prices.

National Energy Group (NEG)
Natural gas and oil properties, primarily located in Texas, Oklahoma and Louisiana (both onshore and in the Gulf of Mexico).

National Iranian Oil Company
State owned oil company of Iran.

National Oil Corporation of Kenya (
Company has a 100% Kenya Government shareholding.

Navajo Refining Company
Owns and operates three refineries consisting of a petroleum refinery in Artesia, New Mexico that is operated in conjunction with crude oil and vacuum distillation and other facilities situated 65 miles away in Lovington, New Mexico (collectively known as the “Navajo Refinery”), and refineries in Woods Cross, Utah and Great Falls, Montana.

Navajo Refining Company - Crude Oil Posting
Crude oil posting prices.

NeoStar Energy Company
Texas Gulf Coast independent oil and gas producing company.

New Century Energy Corp.
Headquartered in Houston, TX, is an independent energy company engaged in oil and gas exploration and production.

New Horizon Exploration, Inc.
Producer of an oil field in the Los Angeles area and fields in the country of Trinidad and Tobago.

Newfield Exploration Company
Independent crude oil and natural gas exploration. Operations include the Gulf of Mexico, onshore U.S. Gulf Coast and the Anadarko and Arkoma Basins.

Nexen Inc.
Deep-water Gulf of Mexico, the Athabasca oil sands of Alberta, in Yemen and West Africa.

Nido Petroleum Limited
Producing oil fields, discovered oilfields and exploration in the Philippines.

Nigerian National Petroleum Company (NNPC)
State of Nigeria owned oil and gas exploration company.

Niko Resources Ltd
Petroleum reserves for Hazira and Surat, India. Bangladesh is the Company’s second area of focus where Niko is acquiring two gas fields, Chattak and Feni.

Nitro Petroleum
A natural resource growth orientated oil and gas exploration company engaged in the development and redevelopment of oil and gas fields in the United States and Canada.

Noble Energy
Company has projects and operations in North America, Equatorial Guinea, Israel, Ecuador, the North Sea, China, and Argentina.

Noble Royalties, Inc.
An energy company that does not drill. Instead, specializes in acquiring valuable mineral and royalty properties.

Norco Crude Gathering Inc
Texas crude oil gatherer.

North Coast Energy, Inc.
Independent energy company engaged in exploration, development and production of natural gas and oil in the Appalachian and Illinois Basins.

Northern Petroleum Plc
Independent oil and gas exploration and production company, with interests in several European countries.

Northstar Energy Inc.
An independent producer of oil and gas involved in active drilling operations within the states of Texas and Louisiana.

NorthStar Operating Company
An independent oil and gas exploration, development and production company located in Midland, Texas.

Norwest Energy NL
Exploration in Northwestern Australia in the Zone of Co-operation between Australia and East Timor, the Bonaparte Basin, the Timor Sea, and the Ashmore-Cartier area, including Vulcan Sub-basin and Browse Basin.

Nuinsco Resources
Canadian Exploration company.

O'Brien Energy Company
An active oil and gas producer and exploration company in Texas, Mississippi, and Louisiana.

O'Neill Properties, Ltd.
Headquartered in Midland, Texas.

O'Ryan Oil and Gas
Exploration and production, Texas.

Oakridge Energy
Engaged in the exploration, development, production and sale of oil and gas, primarily in Texas. Headquartered in Wichita Falls, Texas.

OAO Gazprom
OAO Gazprom is a major integrated global energy company. Headquartered in Moscow, it accounts for about 25% of world gas production, and represents about 8% of Russia?s GNP.

Occidental Petroleum Corporation
Oil and gas company with large, long-lived assets concentrated in the United States, the Middle East and Latin America.

Oil India Limited
Indian National oil company under the administrative control of Ministry of Petroleum and Natural Gas , Govt. of India. Engaged in the business of exploration, development and production of crude oil and natural gas, transportation of crude oil and production of LPG.

Oil Search Limited
An oil and gas exploration and development company that has been operating in Papua New Guinea since 1929.

Oilexco Incorporated
Conducted in western Canada, the southern United States and the UK North Sea.

Olis
Iceland Oil ltd.

Olsen, Fred. Energy ASA
Provides exploration and production services to the offshore oil and gas industry. Headquarter is located in Oslo (Norway).

OMV Aktiengesellschaft
Leading oil and gas group in Central Europe.

ONEOK, Inc.
A diversified energy company involved in oil and gas production, natural gas processing, gathering, storage and transmission principally in Texas, Kansas, and Oklahoma.

ONGC - Oil and Natural Gas Corporation Limited
India's leading energy company engaged in hydrocarbon exploration and production.

Oracle Energy Corp.
Oil prospects situated on Yemen's Red Sea coast proximate to the Saudi Arabian border.

Orbis Energy
Energy company headquartered Austin, TX.

Pacesetter Energy, Inc.
Manages Gas Marketing and Exploration & Production companies.

Pacific East Asia Resources Ltd (PEARL)
Crude oil and natural gas exploration and production focused on South-East Asia.

Pacific Tiger Energy Inc.
Engaged in the exploration and development in oil and gas reserves in Thailand.

Pacrim Energy Limited
A focus on South-east Asia and the western Pacific Rim.

Paladin Resources plc
Previously known as Pittencrieff Resources plc. assets in the U.K., Danish and Norwegian North Sea, Indonesia, Romania and Tunisia.

Palmer Petroleum Inc
Headquartered in Shreveport, Louisiana.

Palo Petroleum, Inc.
Drilling activities in proven oil and gas trends in Texas, Colorado, New Mexico and Wyoming. Specializes in the development of coalbed methane properties.

Paloma Resources
Houston based exploration & production company.

Pan Andean Resources
Explores and produces oil and gas in South America and the Gulf of Mexico.

Panhandle Energy LNG
Provides innovative and flexible receipt, bulk storage and regasification services for the world's LNG producers.

Paradise Oil Gas & Mineral Corporation
Paradise Oil is a Texas based oil exploration and production company currently developing the Pecos Rio Grande Prospects in the Val Verde basin.

Paradise Oil Gas and Mineral Corporation
Oil prospect company located in South Texas in the Val Verde basin along the Pecos River.

Parallel Petroleum Corporation
Primary areas of operation are the Permian Basin of West Texas, Gulf Coast of South Texas, East Texas, and areas of North Texas, New Mexico and Utah.

Patina Oil & Gas Corp
Growing independent energy company engaged in the acquisition, development and exploitation of oil and natural gas properties within the continental United States, currently in Colorado, Oklahoma, New Mexico, and Texas.

PDVSA (Petróleos de Venezuela S.A.)
The state-owned corporation of the Bolivarian Republic of Venezuela.

Pecos Production
Headquartered in Midland, Texas.

Pegasi Energy Resource
A Texas Corporation formed to explore, develop, produce and sell natural gas and oil in the United States. Offices located in both Houston and Tyler Texas.

Pemex
Mexico exploration of hydrocarbons, as well as production, storage, distribution and commercialization of petroliferous and petrochemical products.

Pengrowth Energy Trust
Canadian oil and gas producer.

Penn Virginia Corporation
Exploration, development and production of oil and natural gas primarily in the eastern and Gulf Coast onshore areas of the United States.

Penn Virginia Resource Partners
Manages coal properties and related assets and operates a midstream natural gas gathering and processing business.

Penneco Oil Company
Leasing, marketing, exploration, and drilling operations for natural gas and crude oil in Western Pennsylvania and West Virginia.

Perenco
Operating in Gabon, Colombia, Cameroon, Turkey, Tunisia, Venezuela, Guatemala, Ecuador, Democratic Republic of Congo, Republic of Congo, Eritrea, U.S.A. and U.K.

Pertamina (PERSERO)
Indonesia's state oil company.

Perupetro
Peru oil & gas exploration company.

Petrel Resources
Focus of operations is in Iraq.

Petro-Canada
Integrated oil and gas company in Canada.

Petro-Hunt Group
Oil and gas and mining operations throughout the Middle East, Europe, Africa, Asia, U.S., Texas, Louisiana, and the Western Hemisphere.

Petro-Tech Peruana SA
Peru oil & gas exploration.

Petrobank Energy and Resources Ltd.
Oil and natural gas exploration company with operations in western Canada and Colombia.

Petrobras
Incorporated in October 1953 to operate in the Brazilian oil sector.

Petrogulf Corporation
A privately held Colorado corporation with corporate offices in Houston, TX and Denver, CO.

Petrohawk Energy Corporation
Produces, develops and explores for oil & natural gas. Principal areas of activity are Oklahoma, Texas, Louisiana & Kansas.

Petroleum Corporation of Jamaica
To develop indigenous renewable energy resources for Jamaica.

Petroleum Development Corporation (PDC)
Independent oil and gas company based in Bridgeport, West Virginia. With drilling and production operations in the Appalachian Basin, Michigan and the Rocky Mountains.

Petroliam Nasional Berhad (PETRONAS)
Malaysia's national petroleum corporation established on 17 August 1974. Wholly-owned by the Government, the corporation is vested with the entire oil and gas resources in Malaysia and is entrusted with the responsibility of developing and adding value to these resources.

Petromin
Canadian based operator.

Petroperú
Oil company in Peru.

PetroQuest Energy, Inc.
Drilling and exploration along and in the Gulf of Mexico.

PetroReal Oil Corporation
Based in Vancouver, British Columbia, a focus on the Gulf of Mexico area.

PetroSearch Corporation
Exploration and production company based in Houston, Texas.

PetroSen
State Oil Company of Senegal.

PetroTrin
Petroleum Company of Trinidad and Tobago Limited, owned by the Government of the Republic of Trinidad and Tobago.

Petrox Energy
A private independent energy company engaged in acquisition, exploration, development and production of oil and natural gas. Headquartered in Plano, Texas.

Petsec Energy Ltd
Independent oil and gas exploration and production company focused on the shallow waters of the Gulf of Mexico, USA and Beibu Gulf, China.

Phoenix Exploration
Headquartered in Houston, Texas.

Pioneer Canada
Exploration, exploitation and acquisition Western Canada.

Pioneer Natural Resources Company
Independent exploration and production company in the U.S. (primarily the Hugoton and West Panhandle gas fields and the Spraberry oil and gas field), Argentina, Canada, Gabon, South Africa and Tunisia.

Pioneer Oil & Gas
Pioneer's main exploration emphasis has been in Nevada and in developing coalbed methane projects in Wyoming.

Plains All American Pipeline, L.P.
Engaged in interstate and intrastate crude oil transportation, and crude oil gathering, marketing, terminalling and storage, as well as the marketing and storage of liquefied petroleum gas and other petroleum products (collectively "LPG").

Plains Exploration & Production
Independent oil and gas company primarily engaged in the activities of acquiring, developing, exploiting, exploring and producing oil and gas properties in the United States.

Plains Marketing - Crude Oil Posting
Crude oil posting prices.

Plains Resources Inc.
Engaged principally in the midstream activities of marketing, gathering, transporting, terminaling, and storage of crude oil.

Pogo Producing Company
Interests in major oil and gas producing areas offshore and onshore in the United States, offshore in the Gulf of Thailand, in Hungary, and in the United Kingdom and Danish sectors of the North Sea.

Prairie Pacific Energy Corporation
In Alberta and British Columbia, Canada.

Presco Energy
Oil and gas production in Kansas, Montana, North Dakota, Michigan and Oklahoma. It is headquartered in The Woodlands, Texas.

Primeline Energy Holdings Inc.
An independent energy company focusing exclusively on oil & gas exploration and upstream opportunities in China.

Production Resources Inc.
Subsidiary of American Energy Production.

Progress Energy Ltd.
Canadian based exploration company.

Property Development Group
A medium sized independent oil and gas company, based in Austin Texas. PDG explores, develops and acquires oil and gas properties in Central and South Texas.

Purcell Energy Ltd
Focus on exploring in the areas of the Western Canadian Sedimentary Basin.

Quicksilver Resources Inc.
Natural gas and crude oil producer in the development and production of unconventional natural gas reserves, including coal bed methane, shale gas, and tight sand gas.

R. Lacy, Inc.
East Texas producer located in Longview, Texas.

Range Resources
Independent oil and gas company that operates in the East Texas, West Texas, Midcontinent, Gulf Coast and Appalachian regions of the United States.

Raptor Capital Corporation
Core area of development south of Calgary, Alberta in the Turner Valley, Whiskey Creek area.

Real Resources Inc.
Canadian exploration company.

Rebound Resources
A privately owned emerging independant oil and gas operator located in Houston, Texas.

Reeder Energy
Independent exploration and production company based in Dallas, Texas. Currently, Reeder is focused on producing oil and natural gas in the Rocky Mountains, on- and offshore Louisiana, west Texas and the Texas gulf coast.

Reef Exploration, Inc.
Primary focus is acquisition, exploration, and production of crude oil and natural gas. Headquartered in Richardson, Texas.

Regent Resources Ltd.
Exploration and development, production and marketing of oil and natural gas in Western Canada.

Reichmann Petroleum
Texas based oil and gas exploration company.

Reliance Energy Inc
Headquartered Midland, Texas.

Remington Oil & Gas
Dallas, Texas based oil & gas exploration company.

Remuda Operating Co
Headquartered in Midland, Texas.

REPSOL
Integrated oil and gas company in Spain.

Republic Resources
Focused solely on south Texas and the Gulf Coast region, including Louisiana.

Riata Energy
Exploration, development and production of oil and gas reserves with focus in Texas, Oklahoma, and Colorado.

Richman Petroleum Corporation
Headquartered in Grapevine, Texas.

Rider Resources Ltd
Canadian based operator.

Ridgewood Energy
Invests in oil and gas projects in the U.S. waters of the Gulf of Mexico.

Rising Star Energy, L.L.C.
Operational experience in areas throughout the Continental United States, Canada, Offshore Gulf of Mexico.

Riverway Petroleum Partners
The business of supply logistics, marketing and risk management of petroleum products. Headquartered in Houston, TX.

Roc Oil Company
Operator of acreage in onshore UK and Mongolia and offshore Australia and Senegal and is the Technical Manager in acreage in Equatorial Guinea and has recently acquired an interest onshore Cabinda (Angola).

Rockford Energy Partners LLC
Tulsa, OK.

Rosetta Resources
An independent oil and gas company engaged in the acquisition, exploration, development and production of primarily natural gas properties in North America. Exploration and production activities are concentrated in the Sacramento Basin of California, South Texas, the Gulf of Mexico and the Rocky Mountains.

Rosewood Resources
Oil and gas properties are located mainly in Texas, Utah, Colorado and Oklahoma.

Royal Dutch/Shell Group of Companies
A global group of energy and petrochemical companies.

Royale Energy, Inc.
Natural gas producer in California.

Ruwco Oil and Gas Corp.
An oil and gas operating in seven different counties, all in Texas.

Ryder Scott Co. Petroleum Consultants
One of the largest, oldest and most respected reservoir-evaluation consulting firms in the petroleum industry.

Saga Petroleum
Based in Norway, recently been taken over by Statoil and Norsk Hydro.

Samson Investment Company
Worldwide operations originate from our headquarters in Tulsa, Oklahoma, and include key oil and gas regions in North America, Russia, Australia and Venezuela.

Sanchez Oil & Gas Corporation
Independent oil and gas company, major areas of activity have been in the Gulf Coast, Mid Continent U.S., and Rocky Mountain states.

Sandalwood Oil & Gas
An independently owned and operated exploration & production company located in Houston, Texas.

Santos
Largest producer of gas for the Australian market supplying gas to all mainland Australian States and Territories. Santos also has exploration and production interests in the Surat, Bowen and Amadeus Basins (onshore Australia), the Carnarvon Basin, Timor Sea and Timor Gap (offshore Australia), Otway and Gippsland Basins (onshore and offshore Australia), the Papuan Basin (onshore Papua New Guinea) and the United States (Gulf of Mexico).

Sasol Limited
Headquartered in Johannesburg, South Africa it is engaged in the commercial production and marketing of chemicals and liquid fuels; with a growing interest in oil and gas exploration.

Saudi Arabian Oil Co
A fully integrated international petroleum company with the world's largest oil reserves - over one quarter of the global total.

Savannah Oil and Gas
Headquartered in Houston, Texas.

Seminole Canada Gas Company
Headquartered in Calgary, Alberta is a full-service natural gas marketing company.

Sendero Energy, Inc
A Dallas, Texas based oil and natural gas production company.

Seneca Resources
Explores for, develops and purchases natural gas and oil reserves in the Gulf Coast Region of Texas and Louisiana, the Appalachian Region, the Rocky Mountain Region, California and the western provinces of Canada.

Seventh Energy Ltd.
Focus is Southern Alberta.

Sharp Image Energy
An oil production and exploration company that drills an average of 12 to 14 wells per year, primarily in Texas.

Sharpe Resources Corporation
Primarily in Texas.

Shell (US)
One of America’s leading oil and natural gas producers, natural gas marketers, gasoline marketers and petrochemical manufacturers. Leading oil and gas producer in the deepwater Gulf of Mexico and is a recognized pioneer in oil and gas exploration and production technology.

Shell Trading US (STUSCO) - Crude Oil Posting
Crude oil posting prices.

Shoreline Gas
Natural gas marketing company providing natural gas supply, management and marketing services to producers, consumers and wholesale markets across the United States.

Sibir Energy plc
A pure Russian focus with 100% of its reserves and crude oil production coming from the oil-rich Khanty Mansiysk Region of Russian Western Siberia.

Sibneft
Geographic focus is Russia and the CIS.

Sinclair Oil Corporation
Headquartered in Salt Lake City, Utah, exploring for new crude oil sources to help supply Sinclair's refineries.

Sloan Petroleum
Headquartered in Midland Texas.

Smith Oil Company
Texas oil and gas producer.

Smith Production Inc.
Texas Gulf Coast oil and gas producer.

Sonangol
A public company with the social and economic mission to research, explore, produce, refine, negotiate and distribute all of the hydrocarbon resources controlled by the Government of Angola.

Sonangol Ltd
Responsible for the management of oil and gas reserves in Angola.

Southwest Royalties, Inc.
Private independent oil and gas company engaged in the acquisition, development and production of oil and gas properties. Southwest's primary operations are in the Permian Basin of West Texas and Southeastern New Mexico.

Southwestern Energy Co.
An integrated energy company headquartered in Houston, Texas, primarily focused on the exploration for and production of natural gas.

Spindletop Oil & Gas Co.
Engaged in the exploration, development, and production of crude oil and natural gas in North America in 16 states with a large concentration of production in Texas.

St. Mary Land & Exploration Company
Engaged in the exploration, exploitation, development, acquisition and production of natural gas and crude oil in five core areas in the United States. The Mid-Continent, Rocky Mountain, ArkLaTex, Gulf Coast and Permian Basin regions.

Staatsolie Maatschappij Suriname N.V.
State Oil Company of The Republic of Suriname.

Star Of Texas Energy Services, Inc.
Primary focus is the exploration and production of domestic natural gas. Initially, operations had been in conventional gas reservoirs with 3D seismic projects along the Texas Gulf Coast and in deep South Texas.

StarPoint Energy
A Calgary, Alberta-based crude oil and natural gas exploration and production company focused on southeast Saskatchewan, the northern U.S. and northwest Alberta.

Statoil ASA
A Norwegian integrated oil and gas company.

Stone Energy Corporation
A Gulf Coast Basin-focused independent oil and gas company engaged in the acquisition and subsequent exploration, development, production and operation of oil and gas properties.

Strand Energy, L.C.
Independent oil & gas exploration and production company based in Houston, Texas.

Striker Petroleum
Privately owned energy company that specializes in the identification, acquisition, drilling, development and operations of oil and gas properties with proven production and reserves.

Stroud Energy, Ltd.
Independent exploration and production company based in Fort Worth, Texas.

Sumitomo Corporation
Upstream interests of natural resources in the mainstay areas of copper, coal, oil, and liquefied natural gas (LNG). Headquartered in Tokyo, Japan.

Sumitomo Corporation
Interests of natural resources in the mainstay areas of copper, coal, oil, and liquefied natural gas (LNG).

Sun Resources NL
Australian exploration company, active in North-West Australia.

Suncor Energy
Mining and extracting crude oil from the vast oil sands deposits of northern Alberta.

Sunoco - Crude Oil Posting
Crude oil posting prices.

Sunoco - Japan
Established in August, 1966, is an Asian subsidiary of the world renown multi-energy producer, Sunoco, Inc. (former : Sun Company, Inc.).

Swift Energy Company
Independent oil and natural gas company engaged in the development, exploration, acquisition, and operation of oil and gas properties, with a focus in the United States on onshore and inland water areas of the Texas and Louisiana Gulf Coast and in New Zealand on onshore areas of the Taranaki Basin.

Syncrude Canada Ltd.
Producer of crude oil from oil sands and the largest single source producer in Canada.

Synergy Oil & Gas
Concentrates its search for properties primarily in Texas and Louisiana.

Talisman Energy Inc.
A large, diversified, oil and gas producer based in Calgary, Canada.

Tammany Oil and Gas
Focused on acquiring mature oil and gas properties for the purpose of enhancing the residual asset value. Tammany is an operator in South Louisiana and has holdings offshore Texas and Louisiana in OCS waters.

Tap Oil Limited
Oil and gas exploration and production company with interests on the North West Shelf of offshore Western Australia and New Zealand.

Targa Resources
Midstream gathering, processing and transmission assets in stable supply and demand areas, primarily in the Gulf Coast, Gulf of Mexico, Mid-Continent and Rocky Mountain regions of the United States.

Tatneft
Republic of Tatarstan, organized under the laws of Russia and Tatarstan. Our principal business is to explore for, develop, produce and market crude oil.

Taurus Petroleum Development AB
Swedish oil company.

Tecpetrol
An Argentine company of exploration and production of petroleum and gas.

Teikoku Oil Co
Oil and gas exploration company of Japan.

TEPPCO Partners, L.P
Owns and operates petrochemical and natural gas liquid pipelines; is engaged in crude oil transportation, storage, gathering and marketing; owns and operates natural gas gathering systems.

Tesoro Petroleum Corporation
An independent refiner and marketer of petroleum products. Tesoro operates six refineries in the western United States.

Texas American Resources Company
A privately held oil and gas exploration and production company with operations in ten counties in Texas.

Texas Independent Exploration Ltd.
Dominant niche player in the exploration of Gulf Coast oil and gas reserves. Headquartered in Houston, Texas.

Texas Royalty Corp
Production in Texas and Louisiana with the majority of our operations in the East Texas Basin.

TexCal Energy
Like a drill bit on an oil rig, the mission of TexCal Energy is pointed and direct: develop existing producing and non-producing properties and undeveloped leaseholds in order to increase production, cash flow and reserves through the application of proven technology and efficient operating practices. Headquartered in Houston, TX, TexCal Energy is an independent energy company engaged in the acquisition, exploration, exploitation, development and production of onshore natural gas and crude oil in Texas and California.

Texon L.P.
To provide service and value in the crude oil and natural gas liquids marketing area of the energy industry with corporate offices in Houston, TX.

The 7711 Corporation
Exploratin and production, Texas.

The Exploration Company
A San Antonio-based independent oil and gas exploration and production company.

Tidal Petroleum
The acquisition, exploration, development and production of oil and gas reserves in Texas concentrated activities on the Gulf Coast and in South Texas.

TNK-BP
Development of its assets in Russia and CIS, increased oil and gas production through introduction of new technologies and active promotion of projects in East Siberia and Sakhalin.

Tom Brown, Inc.
Independent energy company engaged in the exploration for, and the development, acquisition, production and marketing of natural gas, natural gas liquids and crude oil primarily in the gas prone basins of the U.S. and Canadian Rocky Mountains, and Southern Region.

Torch Energy Royalty Trust
Proved developed oil and gas properties in Texas, Alabama and Louisiana.

Toreador Resources Corporation
Holds interests in developed and undeveloped oil and gas properties in France, Romania, Turkey and Trinidad. In the United States, Toreador owns working interests primarily in five states: Kansas, Louisiana, New Mexico, Oklahoma and Texas.

TotalFinaElf
Created through the mergers of the former Total joined with Belgian oil company Petrofina to form Totalfina, and the second when Totalfina combined with French oil company Elf Aquitaine to create TotalFinaElf. The new company reflects this prestigious Franco-Belgian oil and gas heritage,.

Touch Oil and Gas.com
Serves the information needs of the oil and gas industry, creating a stimulating and informative arena that collates the expertise of market leaders and international organisations. Touch Oil and Gas.com is an online continuation of its Touch Briefings counterpart, Exploration and Production: The Oil and Gas Review, an bi-annual publication that provides market intelligence and targeted advertising platforms surrounding this specialist market.

Touchstone Resources
Oil and gas exploration company targeting Permian Basin, East Texas Basin, and Texas and Louisiana Gulf Coast.

TPAO - Turkish Petroleum Corporation
National oil and natural gas company of Turkey. TPAO’s headquarter is in Ankara and it has 3 districts in Adiyaman, Batman and Thrace Regions.

Trammo Petroleum
The acquisition and marketing of crude oil in the USA.

TransAtlantic Petroleum Corp.
Principal assets are located in the United States and in Nigeria.

TransGlobe Energy Corporation
Producing properties in Alberta, Canada and in the Republic of Yemen.

TransMeridian Exploration, Inc.
Independent energy company established initially to acquire and develop identified and underdeveloped oil reserves in the region of the former Soviet Union known as the Confederation of Independent States (CIS) and more particularly the Caspian Sea region.

TransMontaigne
Gathering and transportation of crude oil and refined products from Texas and Eastern US.

Trek Resources
Exploration, development, exploitation and acquisition of on-shore oil and natural gas properties in conventional producing areas of Texas, Oklahoma, and New Mexico.

Tri-Valley Corporation
Located in the producing areas of California’s Great Central Valley.

Triana Energy
Exploration and production company in the Appalachian Basin.

Tripetrol Oil Company
Engaged in the whole scope of petroleum related activities ranging from exploration and production to crude oil processing, refined product blending and sales. Strength is in South America and Russia. Successful in finding oil in Block l on the coast of Ecuador, as well as in Puesto Guardian, Argentina.

Triton Energy Corp
A junior oil and natural gas Corporation based in Calgary, Alberta, Canada.

Tullow Oil plc
Exploration and production licences spread over three main areas – South Asia, Africa, and Europe.

Turkish Petroleum Company
Involved in hydrocarbon exploration, drilling, production, refinery and marketing activities as Turkey's national company.

Tusk Energy Inc.
Engaged in the exploration, development and production of oil and gas in Western Canada.

Ultra Petroleum Corp.
Independent exploration and production company focused on its core properties in the Green River Basin of southwestern Wyoming and the shallow waters of Bohai Bay, China.

Unit Petroleum Company
Exploration company headquartered in Tulsa, Oklahoma.

United Heritage Corporation
An oil and gas exploration and production in the Val Verde Basin of south Texas and in the Permian Basin in southeastern New Mexico.

Unocal Corporation
Large company engaged in the development, production and marketing of crude oil and natural gas worldwide.

USDataLibrary
Global database resources, critical technical information, decision-support tools and related services for the international crude oil and natural gas industries.

UTS Energy Corporation
In Alberta's Athabasca oil sands region.

Vaalco Energy, Inc.
Properties and exploration activities are located in the Texas Gulf Coast region, offshore the Philippines and offshore Gabon, West Africa.

Valero Energy - Crude Oil Posting
Crude oil posting prices.

Vanco Energy Company
Explore and develop oil and gas in deepwater offshore West Africa.

Venoco, Inc.
Independent oil and gas operator in California.

Vermilion Energy Trust
Oil and gas exploration in Canada, France, and Aventura.

Vess Oil Corporation
A Mid-Continent Area oil and gas operator aggressive in reserve acquisition and exploitation.

Vintage Petroleum, Inc.
Independent oil and gas company with operations in the United States, South America, Canada and Yemen.

VirTex Petroleum Company
Independent oil and gas exploration and development company headquartered in Corpus Christi, Texas.

Vitol
International oil and gas exploration. Offices in London, Houston and Singapore.

W. T. Waggoner Ranch - Oil Division
The W. T. Waggoner Estate in North Central Texas is seeking a working relationship with an industry partner to further explore and develop the ranchlands. Approximately 160,000 acres of the 560,000 acres are proven prolific oil properties.

Wagner Oil Company
Areas of interest for acquisition, exploration and development opportunities are along the Gulf Coast in South Louisiana and Texas, North Louisiana, East Texas, West Texas and Southeast New Mexico.

Walter Oil & Gas Corp
Oil and natural gas exploration company operating offshore Texas, Louisiana, Gulf Coast.

Wapiti Energy
North American exploration and production company. Based in Houston, assets are located primarily along the Texas and Louisiana Gulf Coast.

Ward Petroleum Corporation
Focused on the Anadarko and Arkoma Basins of Oklahoma.

West Texas Gas, Inc. (WTG)
Natural gas services in Texas and the Oklahoma Panhandle region.

Western Oil Sands
Mines and extracts recoverable bitumen reserves at the Canadian Muskeg River Mine for transportation to the Scotford Upgrader, 435 km to the south, for upgrading into synthetic crude oil.

Western Production Company
An active North Texas operator of primarily natural gas producing properties. Areas of operation include the Ft. Worth Basin and Bend Arch plays in Pennyslvanian and Mississippian age reservoirs.

Western Refining
Independent oil refiner and marketer headquartered in El Paso, Texas.

Whiting Petroleum
Energy company based in Denver, Colorado. The Company owns and operates oil and gas properties primarily in the Rocky Mountain, Permian Basin, Gulf Coast, Michigan and Mid-Continent regions of the United States.

WhitMar Exploration Company
Focusing on the exploration for and production of oil and gas, with primary focus in the Mid-Continent and Gulf Coast regions.

Will-Drill Resources
Production in the states of Texas, Louisiana, and Mississippi.

Windsor Energy Group
Independent oil and gas company with offices located in Oklahoma City and Gillette, Wyoming.

Woodside Oil & Gas
Australia publicly traded oil and gas exploration and production company. The company has interests in Australia, Africa, the United States and the Middle East and major customer centres in Japan, Korea, China and Singapore.

Wynn - Crosby Energy
Acquire, develop and operate producing oil and gas properties on behalf of equity based limited partnerships. Currently manages eight limited partnerships having interest in over 3,500 producing wells in nineteen states and eight offshore blocks.

XTO Energy Inc
Own and operate in the premier, onshore producing basins in the United States. (formerly Cross Timbers Oil Company).

Zavanna, LLC
A petroleum exploration company in the U.S. and Canada.

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