| REBECCA RESOURCES LLCActive | 23464 | LEEDEY | 9 | 2 |
| REBEL OIL COMPANY | 6992 | OKLAHOMA CITY | 3 | 2 |
| REBELLION ENERGY LLC | 23733 | TULSA | 2 | 1 |
| REBELLION ENERGY SOLUTIONS LLCActive | 24862 | Fairview | 49 | 10 |
| REBER MATTHEW A MRS | 12263 | GROVE | 3 | 1 |
| RECOVERY OIL & GAS COMPANY | 8172 | TULSA | 1 | 1 |
| RECOVERY RESOURCES CORPORATION | 11997 | TULSA | 6 | 2 |
| RED BLUFF DISPOSAL LLC | 22694 | LEEDEY | 1 | 1 |
| RED BLUFF RESOURCES OPERATING LLC | 23828 | OKLAHOMA CITY | 13 | 5 |
| RED BUCK OIL COMPANY | 7703 | COPAN | 0 | 0 |
| RED CHEROKEE RIVER WATER MANAGEMENT & TREATMENT LLC | 23527 | LEWISVILLE | 0 | 0 |
| RED CLAY RENEWABLES, LLCActive | 25098 | Oklahoma City | 1 | 1 |
| RED DIRT ENVIRONMENTAL SERVICES LLCActive | 24269 | CHECOTAH | 5 | 1 |
| RED EAGLE OIL COMPANY | 6935 | OKLAHOMA CITY | 108 | 12 |
| RED EARTH OIL & GAS INCActive | 19253 | OKLAHOMA CITY | 2 | 2 |
| RED FORK (USA) INVESTMENTS INC | 22094 | MIDLAND | 30 | 8 |
| RED FORK OIL CO | 16500 | LAKEWOOD | 0 | 0 |
| RED FORK OIL PRODUCTION INC | 5245 | MANNFORD | 3 | 1 |
| RED FORK PRODUCTION LLCActive | 20711 | SAN ANTONIO | 19 | 4 |
| RED FORK RESOURCES INC | 19675 | KINGFISHER | 22 | 5 |
| RED FORK VALLEY OIL & GAS CO | 7972 | CUSHING | 1 | 1 |
| RED HAWK DISPOSAL LLC | 23666 | OKLAHOMA CITY | 0 | 0 |
| RED HAWK RESOURCES INCActive | 20668 | EDMOND | 51 | 9 |
| RED HILL DISPOSAL INC | 18862 | CLINTON | 0 | 0 |
| RED HILLS RESOURCES INCActive | 24909 | ENGLEWOOD | 1 | 1 |
| RED HORSE OIL & GAS CO | 16203 | AMARILLO | 0 | 0 |
| RED HORSE OIL COMPANY L.L.C.Active | 25124 | NEWKIRK | 5 | 1 |
| RED J B | 15769 | STILLWATER | 0 | 0 |
| RED MOUNTAIN ENERGY LLC | 23677 | OKLAHOMA CITY | 0 | 0 |
| RED MOUNTAIN OPERATING LLC | 23694 | OKLAHOMA CITY | 5 | 2 |
| RED OAK OIL & GAS COMPANY LLC | 21845 | BARTLESVILLE | 0 | 0 |
| RED OX RESOURCES LLCActive | 24874 | DUMAS | 5 | 1 |
| RED PLAINS OIL & GAS LLC | 19756 | KINGFISHER | 5 | 3 |
| RED RIVER FUELS INC | 11184 | BRISTOW | 10 | 2 |
| RED RIVER OIL & GAS COMPANY | 6018 | OKLAHOMA CITY | 41 | 8 |
| RED RIVER OIL CORPORATION | 19370 | ALVARADO | 0 | 0 |
| RED RIVER PETROLEUM CORP | 16499 | DALLAS | 0 | 0 |
| RED RIVER PETROLEUM INCActive | 21413 | TIPTON | 121 | 2 |
| RED RIVER ROYALTY PRODUCTION LLC | 23112 | CRESCENT | 3 | 1 |
| RED ROCK EXPLORATION LLC | 21507 | AUSTIN | 0 | 0 |
| RED ROCK EXPLORATION INC | 10951 | OKLAHOMA CITY | 5 | 5 |
| RED ROCK OIL AND GAS CORP | 19963 | SEDONA | 0 | 0 |
| RED ROCK OPERATING INC | 22056 | BENTONVILLE | 1 | 1 |
| RED ROCK PETROLEUM | 11286 | MINNEAPOLIS | 3 | 1 |
| RED ROCK RESOURCES LLC | 20809 | ARCADIA | 9 | 7 |
| RED ROCKS OIL & GAS OPERATING LLCActive | 22649 | OKLAHOMA CITY | 301 | 15 |
| RED SAND RESOURCES LLCActive | 23071 | ADA | 57 | 2 |
| RED SLATE ENERGY LLC | 22623 | HURST | 0 | 0 |
| RED STONE ENERGIES LTD | 8541 | OKLAHOMA CITY | 8 | 2 |
| RED STONE RESOURCES LLCActive | 23104 | Edmond | 48 | 4 |
| RED TAIL OPERATING INC | 22673 | TULSA | 8 | 2 |
| RED TAIL PRODUCTION COMPANY | 18482 | TULSA | 2 | 2 |
| RED TAIL PROPERTIES, LLCActive | 25204 | Tulsa | 0 | 0 |
| RED WOLF OPERATING LLC | 24373 | EDMOND | 0 | 0 |
| REDBIRD OIL COMPANY | 10466 | BARTLESVILLE | 12 | 2 |
| REDBUD E & P INCActive | 21853 | SPRING | 21 | 5 |
| REDBUD OIL & GAS | 11901 | NOWATA | 11 | 1 |
| REDBUD OIL COMPANYActive | 20774 | ELMORE CITY | 35 | 3 |
| REDBUD RESOURCES INC | 18099 | FAIRVIEW | 0 | 0 |
| REDDIG LOYD W | 12772 | HARPER | 0 | 0 |
| REDDY OIL & GAS CORPORATIONActive | 17653 | TULSA | 54 | 2 |
| REDDY PETROLEUM | 20412 | EDMOND | 0 | 0 |
| REDDY PIPE & SUPPLY INC | 16377 | TULSA | 0 | 0 |
| REDEEMED MISSIONARY BAPTIST CHURCH | 21619 | OKLAHOMA CITY | 1 | 1 |
| REDFORK DISPOSAL SERVICES LLC | 24867 | — | 0 | 0 |
| REDFORK OPERATIONS LLCActive | 23561 | DOVER | 31 | 4 |
| REDGATE PETROLEUM INC | 11034 | WAYNOKA | 4 | 2 |
| REDHAWK RESOURCES LLCActive | 23661 | OKLAHOMA CITY | 2 | 2 |
| REDHEN OIL COMPANY | 1796 | OKLAHOMA CITY | 6 | 3 |
| REDHILL OPERATING LLCActive | 24776 | DUNCAN | 85 | 2 |
| REDHILL WATER MANAGEMENT LLC | 24086 | ELK CITY | 0 | 0 |
| REDLAND DEVELOPMENT LLC | 20398 | CASHION | 4 | 1 |
| REDLAND RESOURCES LLCActive | 18774 | OKLAHOMA CITY | 131 | 15 |
| REDLINE ENERGY LLCActive | 24160 | DOVER | 190 | 16 |
| REDMAN EXPLORER INC | 17852 | ENID | 0 | 0 |
| REDMAN WILLIAM A | 14025 | NORMAN | 0 | 0 |
| REDMOND INDUSTRIES INC | 15604 | EUFALA | 0 | 0 |
| REDNECK OIL & GAS LLCActive | 24749 | CUSHING | 3 | 1 |
| REDNECK PETROLEUM INC | 12140 | SAPULPA | 0 | 0 |
| REDNOSE ENERGY LLCActive | 23675 | ELMORE CITY | 1 | 1 |
| REDROCK INVESTMENT COMPANY | 19427 | TULSA | 0 | 0 |
| REDSTAR RESOURCES LLC | 19539 | QUINTON | 1 | 1 |
| REDSTONE OIL & GAS COMPANY | 17324 | DALLAS | 14 | 4 |
| REDTAIL INVESTMENTS LLCActive | 23239 | Oklahoma City | 23 | 3 |
| REDWINE RESOURCES INC | 17277 | DALLAS | 0 | 0 |
| REDWINE RESOURCES INC | 21206 | DALLAS | 0 | 0 |
| REED MARY ANN | 19582 | OKMULGEE | 0 | 0 |
| REED POWER TONGS INC | 19821 | SEMINOLE | 19 | 4 |
| REED RICHARD | 19196 | SEMINOLE | 0 | 0 |
| REED RICHARD L | 16523 | SHAWNEE | 1 | 1 |
| REED ROY LLC | 19050 | POTEAU | 0 | 0 |
| REED ROY TRUSTS PARTSHIP | 16567 | POTEAU | 0 | 0 |
| REED STEVE & MIKE TURNER | 14045 | LONE GROVE | 0 | 0 |
| REEDER ENERGY OPERATING LLC | 23220 | DALLAS | 2 | 2 |
| REEF PETROLEUM INC | 18315 | OKLAHOMA | 1 | 1 |
| REESE GARY A | 15414 | WANN | 0 | 0 |
| REGAL NATURAL RESOURCES LLCActive | 25181 | Edmond | 2 | 2 |
| REGAL PETROLEUM SERVICES INC | 18473 | EULESS | 7 | 3 |
| REGAL RESOURCES CORPORATION | 19218 | OKLAHOMA CITY | 0 | 0 |
| REGAL RESOURCES LLC | 23816 | WOODWARD | 0 | 0 |
| REGAN PETROLEUM CORPORATION | 8771 | OKLAHOMA CITY | 1 | 1 |
| REGENCY EXPLORATION INC | 10470 | OKLAHOMA CITY | 54 | 20 |
| REGENCY PETROLEUM INC | 11541 | JONES | 13 | 3 |
| REGIONAL ENERGY CORPORATION | 15935 | TEMPLE | 4 | 1 |
| REH INDUSTRIES | 8624 | TALALA | 9 | 2 |
| REICH OIL & GAS INC | 12590 | SASAKWA | 0 | 0 |
| REID OPERATING CO | 17809 | ADA | 0 | 0 |
| REID WILLIAMS OPERATING INCActive | 18877 | SHREVEPORT | 19 | 6 |
| REIDY INTERNATIONAL INC | 13040 | HOUSTON | 0 | 0 |
| REIGATE RESOURCES INC | 12035 | TULSA | 7 | 2 |
| REIGN OPERATING LLCActive | 24990 | Oklahoma City | 58 | 3 |
| REIM KIRBYActive | 23183 | BILLINGS | 3 | 1 |
| RELIABLE OIL INDUSTRIES INC | 11235 | TULSA | 11 | 2 |
| RELIANCE DISPOSALS LLCActive | 24530 | WOODWARD | 1 | 1 |
| RELIANCE ENERGY INC | 15156 | OKLAHOMA CITY | 0 | 0 |
| RELIANCE RESOURCES CORP | 16273 | OKLAHOMA CITY | 3 | 2 |
| RELIANCE TRUSTS | 17906 | DALLAS | 1 | 1 |
| RELM ENERGY INC | 14751 | MORRIS | 0 | 0 |
| REMCO ENERGY CORPORATION | 13062 | TOPEKA | 2 | 2 |
| REME RESOURCES INC | 16586 | CUSHING | 0 | 0 |
| REMINGTON ENERGY INC | 16629 | HUTCHINSON | 0 | 0 |
| REMLIK COMPANY INC | 12703 | TULSA | 0 | 0 |
| REMNANT ENERGY INC | 22103 | PERRYTON | 2 | 1 |
| REMO PRODUCTION CO | 17196 | STILLWATER | 1 | 1 |
| REMO PRODUCTION COMPANY | 2473 | STILLWATER | 5 | 1 |
| REMORA OPERATING LLCActive | 23571 | HOUSTON | 19 | 5 |
| REMUDA OPERATING CO LLC | 23235 | OOLOGAH | 0 | 0 |
| RENAISSANCE PETROLEUM CO LLC | 20807 | LA MARQUE | 0 | 0 |
| RENAISSANCE PETROLEUM INC | 11854 | OKLAHOMA CITY | 6 | 5 |
| RENAISSANCE RESOURCES INC | 8780 | CALGARY | 0 | 0 |
| RENARD RESOURCES INC | 19726 | TULSA | 0 | 0 |
| RENBARGER ROBERT E | 15583 | EL RENO | 1 | 1 |
| RENCO ENERGY INC | 20394 | CALGARY | 73 | 12 |
| RENEGADE LAND & MINERAL CO | 10091 | SKIATOOK | 8 | 1 |
| RENEGADE OIL AND GAS LLC | 24332 | HELENA | 39 | 17 |
| RENEGADE OPERATING CO INC | 12771 | PERRY | 3 | 1 |
| RENFROE LYNDOL | 18015 | WILSON | 2 | 2 |
| RENO RESOURCES INC | 17452 | BOYNTON | 10 | 2 |
| RENSARK ENERGY COMPANY INC | 19990 | OKLAHOMA CITY | 1 | 1 |
| RENT-A-LINE INC | 13968 | ENID | 0 | 0 |
| RENTHOL OIL LLCActive | 22749 | IOWA PARK | 5 | 1 |
| REPLAY ENERGY ASSETS LLCActive | 24219 | OKLAHOMA CITY | 16 | 1 |
| REPLAY RESOURCES LLC | 24130 | ADA | 4 | 2 |
| REPRISE ENERGY LLC | 23519 | EVERGREEN | 0 | 0 |
| REPUBLIC ENERGY INC | 18502 | DALLAS | 33 | 1 |
| REPUBLIC EXPLORATION INC | 15254 | HOMINY | 0 | 0 |
| REPUBLIC RESOURCES CORPORATION | 10743 | OKLAHOMA CITY | 13 | 8 |
| RESCHLY VERNONActive | 15985 | NOWATA | 5 | 1 |
| RESCO ENTERPRISES INC | 8481 | SAPULPA | 13 | 3 |
| RESEARCH OIL COMPANY INC | 4735 | NORMAN | 40 | 6 |
| RESERVE ACQUISITION GROUP | 18618 | TULSA | 0 | 0 |
| RESERVE EXPLORATION COMPANY | 11385 | TULSA | 13 | 7 |
| RESERVE MANAGEMENT INCActive | 16003 | TULSA | 24 | 3 |
| RESERVE OPERATING COMPANY | 15309 | TULSA | 0 | 0 |
| RESOLUTE WYOMING INC | 21685 | DENVER | 0 | 0 |
| RESOURCE DESIGN CORP | 13994 | ARDMORE | 5 | 2 |
| RESOURCE DEV TECHNOLOGY LLC | 21084 | MORRISON | 3 | 1 |
| RESOURCE DEVELOPMENT INC | 11814 | STROUD | 11 | 1 |
| RESOURCE ENERGY CORPORATION | 16658 | PHOENIX | 1 | 1 |
| RESOURCE ENTERPRISES INC | 14880 | SALT LAKE CITY | 4 | 3 |
| RESOURCE MANAGEMENT ASSOC II | 15470 | PHILADELPHIA | 0 | 0 |
| RESOURCE OIL & GAS CORPORATION | 13679 | OKLAHOMA CITY | 0 | 0 |
| RESOURCE OIL AND GAS LLCActive | 24248 | OKLAHOMA CITY | 419 | 13 |
| RESOURCE OPERATIONS INC | 18214 | OKLAHOMA CITY | 14 | 6 |
| RESOURCES DEVELOPMENT GROUP | 16651 | LAKE FOREST | 0 | 0 |
| RESOURCES INVESTMENT CORP | 4987 | DENVER | 2 | 2 |
| RESOURCES OPERATING CO INCActive | 15510 | Rogers | 146 | 19 |
| RET OIL INC | 10834 | DEL CITY | 0 | 0 |
| REVCO PROPERTIES INC | 11618 | TULSA | 0 | 0 |
| REVELATION GAS & OIL OKLAHOMA LLC | 23328 | KANSAS CITY | 4 | 2 |
| REVELATION RESOURCES | 17700 | CYPRESS | 15 | 10 |
| REVERE CORPORATION | 15223 | FORT SMITH | 0 | 0 |
| REVERE CORPORATION | 19286 | DENVER | 0 | 0 |
| REVIEW OIL & GAS INC | 15318 | EDMOND | 15 | 4 |
| REVILLE ROBERT OIL & GAS INC | 15653 | RUSH SPRINGS | 0 | 0 |
| REVILO EXPLORATION INC | 14763 | HUACHUCA CITY | 18 | 9 |
| REVILO EXPLORATION LLCActive | 22928 | OKLAHOMA CITY | 15 | 8 |
| REVOCABLE INTER VIVOS TRUST OF DELAPP FRANKIE LActive | 16446 | BARTLESVILLE | 9 | 1 |
| REVOLUTION OPERATING COMPANY LLC | 24513 | OKLAHOMA CITY | 25 | 6 |
| REVOLUTION RESOURCES III, LLCActive | 25209 | OKLAHOMA CITY | 416 | 2 |
| REVOLUTION RESOURCES LLC | 24162 | OKLAHOMA CITY | 27 | 4 |
| REX OIL REFINING INC | 1805 | CHANDLER | 15 | 1 |
| REXWOOD CORPORATION | 5708 | OKLAHOMA CITY | 4 | 3 |
| REYBURN OPERATING CO INC | 15171 | BROKEN ARROW | 0 | 0 |
| REYDON DISPOSAL LLC | 21938 | SAYRE | 1 | 1 |
| REYN OIL CORPORATION | 20510 | PLANO | 6 | 1 |
| REYNOLDS J W & ASSOCIATES | 12470 | SAPULPA | 3 | 1 |
| REYNOLDS LESTER OIL CO | 16741 | DEWEY | 0 | 0 |
| REYNOLDS OIL & GAS INC | 12929 | SHAWNEE | 1 | 1 |
| REYNOLDS PETROLEUM CO | 13493 | OKLAHOMA CITY | 0 | 0 |
| REYNOLDS RESOURCES CO | 17087 | BATON ROUGE | 0 | 0 |
| RGB CORP | 6366 | TULSA | 3 | 2 |
| RGV OIL A PARTNERSHIP | 18011 | SHAWNEE | 0 | 0 |
| RHEMA OIL COMPANY | 11167 | BARTLESVILLE | 8 | 1 |
| RHINO ENERGY LLC | 22527 | CHEROKEE | 0 | 0 |
| RHINO OPERATING COMPANY LLCActive | 22366 | BRENTWOOD | 5 | 2 |
| RHINO RESOURCES COMPANY LLC | 24387 | OKLAHOMA CITY | 0 | 0 |
| RHOADES OIL COMPANY | 1807 | TULSA | 82 | 13 |
| RHOADS BROTHERS OIL & GAS INC | 14107 | TULSA | 1 | 1 |
| RHOADS JOHN E | 19703 | WICHITA FALLS | 0 | 0 |