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D & A Oil Company, a General Partnership
D & D Energy
D & L Services, Inc.
D & R Oil, Inc.
D & R Well Service, Inc.
D & T Oil Company
D & Z Exploration, Inc.
D K Oil Services LLC
D Oil, Inc.
D S & W Well Servicing, Inc.
D. E. Exploration, Inc.
D. Jackson Rentals LLC
D.K. Rush Oil Co., LLC
D.M. Well Service
DA Energy, LLC
Dakota Production Co., Inc.
Dale E. Jackson Production Co.
DaMar Resources, Inc.
Daniels Oil Co.
Dark Horse
Darnall, Eric W
Darrah Oil Company, LLC
Darrah, John Jay, Jr.
Dart Cherokee Basin Operating Co., LLC
Davidson Oil & Gas LLC
Davis Petroleum, Inc.
Dawson-Markwell Exploration Co.
Daylight Petroleum, LLC
Daystar Petroleum, Inc.
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DB Energy, LLC
DBD Oil, LLC
DE & TZ LLC
Dechant Oil Operations, LLC
Deer Run Oil Lease, LLC
Dell-Ray Investments, Inc.
Denis Roberts Oil
Dennis Fitzpatrick Rev. Trust
Deshal Energy LLC
Destiny Petroleum LLC
Destiny Services LLC
Deutsch Oil Company
Deutscher Oil Operations
Devon Energy Production Company, L.P.
Dexxon, Inc.
DGH Oil, LLC
DHP Investments, Ltd.
Diamond B Miami Flood, Ltd.
Diamond Star Oil, Inc.
Diehl Oil Inc
Dimick Production, LLC
Directional Drilling Systems, LLC
Dixie Oil, LLC
Dixon Energy, Inc.
Dixon Operating Company, LLC
Dixon, Mike
Dixon, Robin Francine
DK Operating Inc.
DMH Petroleum, Inc.
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DNR Oil and Gas, Inc.
Dolphin Energy LLC
Don Karst Well Service, Inc.
Don Sims Oil
Doonan and Sons, Inc.
Double "D" Oil Company, Inc.
Double "K" Oil, Inc.
Double D's LLC
Double Eagle Exploration, Inc.
Double G Petro LLC
Double L Oil Producers
Doug's Pumping Service
Dover Atwood Corp
Downing-Nelson Oil Co Inc
Drake Exploration, LLC
Dreiling Exploration LLC
Dreyer Oil
Driscoll, Jerry J Oil Investment Inc
Drop Tine Exploration, LLC
Duke Oil & Gas Company, LLC
Duke Oil LLC
Dunham's Oil, LLC
Dunne-Gardner Petroleum, Inc.
DWARF Oil Company
Dyer, Charles Wilbur
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