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Crude Petroleum and Natural Gas (9,152)

Coal Gasification (23)

   Envires

   Eg Tec LLC

   Dakota Coal CO

   Dakota Gasification CO

   Green Rock Energy, L L C

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Coal Liquefaction (4)

   Greentech Energy Liquid Fuels LLC

   Genie Oil & Gas Corp

   American Coal Liquefaction, LLC

   Rra Inc

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Gas Boosters (6)

   Paraco Gas Corp

   High Performance Plus, Distribution

   More Mileage Now

   air2gas fuel saver

   Energy North Propane Inc

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Gas and Hydrocarbon Liquefaction From Coal (25)

   Madisonville Gas Processing Lp

   Solano Gas Processing, Inc

   Morgan Kinder Treating Lp

   Allied Gas Processing, Inc

   Sinnecot Hydrocarbon Tech

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Natural Gas Production (404)

   C E Ready Mix

   Etc Canyon Pipeline, LLC

   Lancaster County Natural Gas Authority

   Easy Drive

   Gas, Maple

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Oil Companies (84)

   Martin Eagle Oil CO Inc

   Whiting Petroleum Corp

   Conoco Phillips Terminal

   Ron's Oil CO

   Wichita River Oil Corp

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Oil Crude (1,887)

   Thielman Oil Production Services, Inc

   Diversified Energy Corp

   Q-West Energy Company

   Pioneer Natural Resources Company

   Coles Energy

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Oil Operators (289)

   Knoc USA

   R B Cowden Family Prop Ltd

   Westerly Exploration Inc

   R M Kolb & Associates

   Sewell, Mike

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Oil Sand Mining (16)

   Cisco Operating, LLC

   Soper Production

   T E F Inc

   Mehaffey Investments Inc

   Dakota Cooperative

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Oil Shale Mining (12)

   Triple B Productions Drilling

   Chapman Oil CO

   Palo Petroleum Inc

   Chevron Corporation

   Oil Shale Exploration Company, LLC

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Oil and Gas Producers (5,198)

   Drew Haley Oil Producers

   Terrell Oil & Gas Servics

   Highway Oil

   Southland Energy Consultants

   Cal-Ray Petroleum Corp

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Oil and Gas-Production (1,190)

   Haas Oil CO Inc

   Plains Exploration & Production Company

   The Western Company Of Texas

   Oil Producers Ltd LLC

   Alltex Packaging & Supplies LLC

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Sand and Shale Oil Mining (14)

   Clark Oil Co

   Crescent City Wholesalers

   Doc Oil Corp

   Black Sands Holding Co

   Cla Mar Oil CO

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