Companies

DIAMOND LUBE N OIL
DIAMOND O RANCH
DIAMOND OIL & ENERGY CO INC
DIAMOND OIL CO
DIAMOND OIL CO
DIAMONDBACK OPERATING LP
DIASU OIL & GAS INC
DICKERS OIL
DIEHL LAND SVC
DIEHL OIL
DIEHL OIL INC
DIGBY ENTERPRISES INC
DILLON ENERGY
DILS OIL & GAS
DIMENSION ENERGY CO
DIMITT OIL CO
DIMOCK OPERATION CO
DIMOCK OPERATION CO
DIMOCK PETROLEUM CO
DINKEL GAS CO
DINO'S OIL
DIRECT OIL FIELD SVC
DIRECT SALES ENTERPRISE
DISCORBIS OIL CO
DISCOUNT HEAT OIL CO
DISCOVERY ACQUISITION SVC
DISCOVERY EXPLORATION
DISCOVERY OIL LTD
DISCOVERY OPERATING INC
DISCUS OIL CORP
DISHMAN, H E
DISPUTE MANAGEMENT INC
DIVELUCA OIL CO
DIXIE GAS & OIL
DIXIE GAS & OIL CORP
DKM OFFSHORE ENERGY INC
DMF INC
DNL OIL CORP
DOC OIL CORP
DOCKING DEVELOPMENT CO
DOCS OIL BURNER SVC
DOIE ALLEN OFFICE
DOLOMITE RESOURCES CORP
DOLPH OIL CORP
DOME DRILLING CO
DOMESTIC ENERGY DEVMNT INC
DOMINION EXPLORATION & PRDCTN
DOMINO OIL
DON H WILSON INC
DON ROSE OIL
DON SMALL & SONS OIL DIST CO
DONALD SMALL & SONS OIL
DONOHO OIL & GAS CONSULTANTS
DONS OIL FURNACE SVC
DOOLAREE CORP
DOOLEY OIL INC
DOOLEY'S NATURAL GAS
DORADO OIL CO
DORADO OIL CO
DORAN OIL PROPERTIES
DORCHESTER MINERALS OPERATING
DORFMAN PRODUCTION CO
DORMAN, J L
DORWARD ENERGY CORP
DOSS OIL ROYALTY CO
DOUBLE B LAND & CATTLE CO
DOUBLE EAGLE PETROLEUM CO
DOUBLE EAGLE PETROLEUM CO
DOUBLE EAGLE PETROLEUM CO
DOUBLE H OIL TOOLS
DOUBLE M PETRO PROPERTIES INC
DOUG COE & ASSOC INC
DOUG R HILLMAN ASSOC INC
DOUGLAS OIL & GAS INC
DOVER EXPLORATION CO
DOWDCO OIL WELL DRILLING
DOWNHOLE PRODUCTION SOLUTIONS
DOWNHOLE SUPPLY
DOWNING NELSON OIL CO
DOWNING-NELSON OIL CO INC
DOWNMAN JONES OIL OPERATORS
DOYLE HARTMAN OIL OPERATOR
DRACO ENERGY
DRAGON OIL TECHNOLOGIES INC
DRAKE EXPLORATION INC
DRAKE OIL & GAS
DREILING OIL INC
DREILING OIL INC
DRESCHER OIL CO LLC
DREW HALEY OIL PRODUCERS
DRILCO OIL & GAS
DRILLERS & PRODUCERS INC
DRILLING & PRODUCTION CO
DRILLING & PRODUCTION CO
DRILLING ESSENTIALS
DRILLMAR ENERGY CO
DRYFORK PRODUCTION CO
DSB PROPERTIES INC
DSR ENERGY INC