| PRICOR-TRC CORPORATION | 16116 | MOUNDS | 30 | 5 |
| PRIDE ENERGY COMPANYActive | 19430 | TULSA | 53 | 20 |
| PRIDMORE DELORES | 18570 | KELLYVILLE | 4 | 1 |
| PRIER ED INC | 2614 | NORMAN | 0 | 0 |
| PRIMARY FUELS INC | 15202 | MIDLAND | 0 | 0 |
| PRIMARY NATURAL RESOURCES III LLC | 22514 | TULSA | 1 | 1 |
| PRIMARY NATURAL RESOURCES INC. | 20713 | TULSA | 2 | 2 |
| PRIMARY NATURAL RESOURCES IV LLC | 23483 | TULSA | 3 | 1 |
| PRIME ENERGY COMPANY | 7312 | TULSA | 31 | 11 |
| PRIME ENERGY CORP | 5406 | OKLAHOMA CITY | 2 | 1 |
| PRIME OPERATING COMPANYActive | 18626 | Midland | 473 | 16 |
| PRIME OPERATING INCActive | 20348 | CHICKASHA | 26 | 1 |
| PRIMEXX OPERATING CORPORATION | 19752 | DALLAS | 59 | 9 |
| PRIMROSE OPERATING CO | 17979 | WICHITA FALLS | 12 | 1 |
| PRINCE BROTHERS DRILLING CO | 1740 | ELECTRA | 3 | 1 |
| PRINCE PETROLEUM INC | 11127 | TULSA | 3 | 2 |
| PRINCESS THREE CORPORATION | 21302 | HENDERSON | 0 | 0 |
| PRINCESS THREE OPERATING LLC | 21625 | HENDERSON | 11 | 4 |
| PRINCETON ENERGY CORPORATION | 14106 | DENVER | 0 | 0 |
| PRINGLE PETROLEUM INC | 15282 | HOUSTON | 1 | 1 |
| PRIORITY HOLDINGS LLCActive | 24802 | Marlow | 28 | 2 |
| PRISM CORPORATION | 22887 | BOZEMAN | 0 | 0 |
| PRIZE EXPLORATION LLC | 23682 | OKLAHOMA CITY | 3 | 1 |
| PRIZE OPERATING COMPANY | 20615 | IRVING | 0 | 0 |
| PRO OPERATING LLCActive | 20089 | OKLAHOMA CITY | 4 | 1 |
| PRO-ENERGY INC | 23171 | TULSA | 1 | 1 |
| PROCK LARRY F | 14866 | PORTLAND | 0 | 0 |
| PROCTOR DALE & MILDRED | 10777 | WETUMKA | 6 | 1 |
| PRODIGY OIL & GAS LLC | 21271 | IRVING | 2 | 1 |
| PRODUCERS 88 OIL CORP | 10919 | OKEMAH | 2 | 2 |
| PRODUCERS DISPOSAL SERVICE | 9172 | WICHITA | 0 | 0 |
| PRODUCERS OIL COMPANY | 1745 | TULSA | 40 | 10 |
| PRODUCERS OPERATING CO INC | 11826 | AMARILLO | 21 | 3 |
| PRODUCTION EQUIPMENT INC | 18297 | OKLHOMA CITY | 0 | 0 |
| PRODUCTION MAGAMENT CONSULTANTS INC | 18142 | GARNETT | 0 | 0 |
| PRODUCTION RECOVERY COMPANY INC | 19852 | OKLAHOMA CITY | 14 | 7 |
| PRODUCTION TEAM OF OK INC | 14268 | INDEPENDENCE | 0 | 0 |
| PRODUCTION WASTE SOLUTIONS LLC | 24968 | ANDREWS | 0 | 0 |
| PROEX ENERGY MANAGEMENT LLC | 22222 | SPRING | 15 | 6 |
| PROF OPERATING & CONSULTING | 12238 | ENID | 1 | 1 |
| PROGRESSIONS INC | 15783 | PONCA CITY | 0 | 0 |
| PROGRESSIVE RESOURCES INC | 20212 | ELK CITY | 0 | 0 |
| PROJECT 21 LLCActive | 24622 | TULSA | 3 | 1 |
| PROJECT COMPANIES GAS MRKT INC | 20019 | EDMOND | 0 | 0 |
| PROMPT OPERATING LLCActive | 23525 | VELMA | 18 | 2 |
| PROSPECT ENTERPRISES INC | 20080 | WETUMKA | 0 | 0 |
| PROSPECTIVE INVESTMENT & TRADING | 7527 | SCOTTSDALE | 19 | 10 |
| PROSPER OIL & GAS INC | 22596 | DALLAS | 0 | 0 |
| PROSPEROUS OIL & GAS INCActive | 17296 | OKMULGEE | 82 | 4 |
| PROSSER OIL AND GAS LLC | 19135 | CRESCENT | 2 | 2 |
| PROTEGE ENERGY II LLC | 22398 | TULSA | 0 | 0 |
| PROTEGE ENERGY LLC | 21728 | TULSA | 0 | 0 |
| PROUGH A J | 16950 | GOTEBO | 0 | 0 |
| PROUGH TRUSTActive | 18266 | GOTEBO | 7 | 1 |
| PROVEN RESERVES MANAGEMENT INCActive | 19416 | KINGSTON | 46 | 17 |
| PROVEN RESERVES PRODUCTION CO | 12458 | RICHARDSON | 1 | 0 |
| PROVIDENCE ENERGY CORPORATION | 7647 | BROKEN ARROW | 2 | 1 |
| PROVIDENCE EXPLORATION & PRODUCTION INC | 20734 | FORT SMITH | 3 | 2 |
| PROVIDENCE NATURAL GAS INC | 20790 | OKLAHOMA CITY | 0 | 0 |
| PROVIDENCE OIL & GAS CORP | 15960 | TULSA | 4 | 3 |
| PROVIDENCE OPERATING LLC | 23684 | DALLAS | 0 | 0 |
| PROVIDENCE OPTIMIZATION LLC | 24043 | OKLAHOMA CITY | 0 | 0 |
| PROVIDENCE RESOURCES INC | 12515 | TULSA | 1 | 1 |
| PROVIDENT OPERATING COMPANY LLC | 22411 | DALLAS | 0 | 0 |
| PRPC INC | 19385 | RICHARDSON | 0 | 0 |
| PRUITT CARY | 8176 | MUSKOGEE | 0 | 0 |
| PRUITT DEXTER A | 17695 | ADA | 0 | 0 |
| PRUITT L OIL PROPERTIES | 19716 | OKLAHOMA CITY | 3 | 2 |
| PRUITT OPERATING COMPANY LLCActive | 17710 | Ratliff City | 204 | 4 |
| PRW OIL COMPANY | 16184 | PAMPA | 0 | 0 |
| PRYOR CURTIS | 1749 | LUBBOCK | 0 | 0 |
| PRYOR MARILYN EASTERWOOD | 18092 | DUNCAN | 0 | 0 |
| PRYOR OIL COMPANY INC | 17520 | PARKVILLE | 1 | 1 |
| PRYOR VICTOR W JR | 7693 | HOLDENVILLE | 28 | 3 |
| PSA INCActive | 20947 | CHANDLER | 4 | 1 |
| PSEC INC | 4472 | TULSA | 33 | 15 |
| PSG ENERGY CORPORATION | 12339 | PIEDMONT | 2 | 1 |
| PSI GAS MARKETING & GATHERING INC | 17114 | HOUSTON | 0 | 0 |
| PUBLIC ENERGY CORPORATION | 21941 | TULSA | 0 | 0 |
| PUBLIC SERVICE COMPANY OF OKLA | 1750 | TULSA | 30 | 5 |
| PUCKETT DANNY | 18440 | WILSON | 0 | 0 |
| PULIS THOMAS A OR KATHRYN A DBA PULIS PRODUCTIONActive | 22954 | RATLIFF CITY | 5 | 1 |
| PULLER OIL CO | 13351 | BLACKWELL | 1 | 1 |
| PULLERS OIL COMPANY LLCActive | 17360 | BLACKWELL | 88 | 4 |
| PULLIAM DENNIS L | 19137 | MANNFORD | 1 | 1 |
| PULLIAM IVAN HENRY | 3662 | COWETA | 10 | 1 |
| PULLIAM KEN D | 11765 | BRISTOW | 3 | 1 |
| PULLIAM MELVIN | 3990 | MANNFORD | 5 | 2 |
| PULLIAM RICK D | 19269 | BRISTOW | 0 | 0 |
| PULS ROYCE W | 6111 | CUSHING | 0 | 0 |
| PUMA PETROLEUM CORPORATION | 12145 | TULSA | 3 | 2 |
| PUMP IT UP LLC | 23769 | OWASSO | 0 | 0 |
| PUMPING SERVICES INC | 18375 | SEMINOLE | 0 | 0 |
| PUMPJACK PARTNERS, LLCActive | 25170 | MORRIS | 18 | 2 |
| PURE ENERGY SYSTEMS INC | 19288 | OLIVE BRANCH | 8 | 1 |
| PURE RESOURCES LP | 20937 | MIDLAND | 0 | 0 |
| PURKEY MIKE PETROLEUM SERVICES | 22752 | BEGGS | 0 | 0 |
| PUTNAM PHYLLIS LActive | 11868 | BARTLESVILLE | 47 | 2 |
| PV OIL & GAS LLCActive | 22978 | RATLIFF CITY | 2 | 1 |
| PXP GULF COAST INC | 21363 | HOUSTON | 1 | 1 |
| PYBAS ROBERT | 4111 | WANETTE | 0 | 0 |
| PYRAMID ENERGY INC | 11047 | SAN ANTONIO | 1 | 1 |
| PYRAMID ENERGY LLC | 21397 | OKLAHOMA CITY | 0 | 0 |
| PYRAMID OIL OF AMERICA INC | 14712 | LAKE GENEVA | 9 | 4 |
| PYRO ENERGY CORP | 6451 | KINGWOOD | 4 | 3 |
| PYRON ROB | 18751 | SEMINOLE | 0 | 0 |
| Q AND E RESOURCES LLCActive | 23475 | HENNESSEY | 1 | 1 |
| Q B OIL CO | 7971 | BEGGS | 0 | 0 |
| Q E D EXPLORATION INC | 11231 | DENVER | 2 | 1 |
| Q N OIL COMPANY INC | 5215 | DEL CITY | 1 | 1 |
| Q T OIL LTD COActive | 19509 | SHAWNEE | 22 | 1 |
| QC ENVIRONMENTAL SERVICES INC | 23054 | TAMPA | 1 | 1 |
| QEP COMPANY | 13489 | ENID | 0 | 0 |
| QEP ENERGY COMPANYActive | 4147 | MIDLAND | 177 | 36 |
| QUACK OIL COMPANY | 7884 | CARL JUNCTION | 2 | 1 |
| QUAD E CORPORATION | 17333 | NORMAN | 0 | 0 |
| QUAD J OIL & GAS LLCActive | 21868 | CRESCENT | 11 | 3 |
| QUAD OIL COMPANY | 5553 | BIXBY | 4 | 4 |
| QUAD OPERATING COMPANYActive | 10168 | BULVERDE | 27 | 4 |
| QUAIL CREEK OIL CORP | 18017 | OKLAHOMA CITY | 13 | 6 |
| QUAIL CREEK PETRO MGMT CORP | 11125 | OKLAHOMA CITY | 7 | 6 |
| QUAIL CREEK PETROLEUM CONSULTING LLC | 22701 | OKLAHOMA CITY | 0 | 0 |
| QUAIL OIL & GAS LCActive | 22769 | GARDEN CITY | 37 | 4 |
| QUAILRIDGE EXPLORATION INC | 14984 | OKLAHOMA CITY | 0 | 0 |
| QUAL OIL COMPANY INC | 12010 | OKLAHOMA CITY | 0 | 0 |
| QUALITY PRODUCTION CO OF STIGLER INC | 20508 | STIGLER | 1 | 1 |
| QUALLS JIMMYActive | 16858 | CHECOTAH | 1 | 1 |
| QUALLS PETROLEUM SERVICE | 15911 | FORT WORTH | 0 | 0 |
| QUANAH COMPANY | 2837 | TULSA | 5 | 3 |
| QUANAH PANHANDLE, LLC | 24227 | FORT WORTH | 0 | 0 |
| QUANTUM ENERGY CORPORATION | 14901 | WESTMINSTER | 0 | 0 |
| QUANTUM OIL & GAS CORPORATIONActive | 21571 | OKLAHOMA CITY | 6 | 1 |
| QUANTUM OPERATING CORPORATION | 21910 | DENVER | 0 | 0 |
| QUANTUM RESOURCES MANAGEMENT LLC | 22029 | HOUSTON | 9 | 3 |
| QUAPAW OIL & GAS INC | 16819 | FAYETTEVILLE | 1 | 1 |
| QUARLES DRILLING CORPORATION | 18965 | TULSA | 2 | 2 |
| QUARTZ MOUNTAIN OIL & GAS LLC | 23670 | OKLAHOMA CITY | 0 | 0 |
| QUATRO ENERGIES CORP | 12630 | ENGLEWOOD | 0 | 0 |
| QUATRO OIL & GAS COMPANY | 10467 | BARNSDALL | 0 | 0 |
| QUATRO OIL AND GAS INC | 18919 | WICHITA FALLS | 0 | 0 |
| QUAZAR OIL & GAS CORP | 12482 | OKLAHOMA CITY | 1 | 1 |
| QUENCH OIL & GAS INC | 16813 | PLANO | 1 | 1 |
| QUESENBURY PETROLEUM CORP | 14016 | WATERFLOW | 4 | 1 |
| QUEST 4 OIL LLC | 23883 | DUNCAN | 0 | 0 |
| QUEST CHEROKEE LLC | 21468 | OKLAHOMA CITY | 20 | 4 |
| QUEST MINERAL & EXPL INC | 14126 | OKMULGEE | 18 | 2 |
| QUEST PROPERTY INCActive | 16879 | YUKON | 10 | 4 |
| QUEST VENTURES INC | 12745 | TULSA | 3 | 2 |
| QUESTA ENERGY CORPORATIONActive | 15065 | AMARILLO | 37 | 11 |
| QUESTA OIL & GAS COMPANY | 11292 | TULSA | 5 | 5 |
| QUESTAR EXPLOR & PROD CO | 20489 | TULSA | 0 | 0 |
| QUICK DRAW TANK TRUCKS INC | 14117 | LAMONT | 1 | 1 |
| QUILLEN & ASSOCIATES INC | 14031 | OKLAHOMA CITY | 0 | 0 |
| QUINN ENERGY CORP | 16138 | MT VERNON | 8 | 5 |
| QUINQUE OPERATING COMPANY | 13029 | OKLAHOMA CITY | 4 | 1 |
| QUINTANA OPERATING OK INC | 17433 | HOUSTON | 0 | 0 |
| QUINTANA PET OKLA INC | 16447 | HOUSTON | 8 | 2 |
| QUINTANA PETROLEUM CORP | 13779 | DENVER | 12 | 8 |
| QUINTON RENTAL & REPAIR SERV INC | 17660 | QUINTON | 4 | 2 |
| QUIRK PATRICK J | 13843 | STILLWATER | 1 | 1 |
| QUITA INC | 15172 | GRANBURY | 2 | 2 |
| QUORUM LEASE BANK | 14148 | DALLAS | 0 | 0 |
| R & A MOORE INC | 21213 | CLEBURNE | 14 | 3 |
| R & B OIL & GAS INC | 20175 | ATTICA | 0 | 0 |
| R & B OPERATING LLC | 22968 | BOYNTON | 0 | 0 |
| R & B TRUCKING | 19685 | CRESCENT | 0 | 0 |
| R & B TRUCKINGActive | 21508 | CRESCENT | 0 | 0 |
| R & C OIL AND GAS INC | 22168 | ADA | 3 | 2 |
| R & D OIL & GAS | 15901 | EXETER | 4 | 2 |
| R & D OIL COMPANY | 4190 | ELMORE CITY | 7 | 2 |
| R & E OIL & GAS CORP | 10450 | FOYIL | 0 | 0 |
| R & G OIL COMPANY | 13724 | VELMA | 1 | 1 |
| R & H LLC | 20464 | ARDMORE | 4 | 3 |
| R & J OPERATING | 21160 | CEMENT | 0 | 0 |
| R & K OIL CO | 10646 | CANEY | 16 | 1 |
| R & L LAND & GAS LLCActive | 24085 | ROFF | 1 | 1 |
| R & L OIL COMPANY | 10792 | COPAN | 1 | 1 |
| R & L PROPERTIES INC | 19311 | RICHMOND | 0 | 0 |
| R & M OPERATING & PROD COActive | 16653 | LAWTON | 5 | 1 |
| R & M PETROLEUM INC | 10933 | TULSA | 2 | 1 |
| R & N ASSOCIATESActive | 1787 | Grapevine | 3 | 2 |
| R & N OIL COMPANY | 11033 | FAIRFAX | 5 | 1 |
| R & R DRILLING COMPANY | 14749 | STILLWATER | 0 | 0 |
| R & R EXPLORATION | 16285 | DENTON | 1 | 1 |
| R & R OIL & GAS COMPANY | 14867 | PRAGUE | 6 | 3 |
| R & R OIL COMPANY | 7222 | COLLINSVILLE | 0 | 0 |
| R & R OIL COMPANY | 8358 | SKIATOOK | 0 | 0 |
| R & R OPERATING | 17416 | SKIATOOK | 0 | 0 |
| R & R WELL SERVICE INC | 21428 | FORT WORTH | 0 | 0 |
| R & S EXPLORATION & PRODUCTION | 13844 | LAWTON | 0 | 0 |
| R & S INVESTMENTS | 12588 | TULSA | 0 | 0 |
| R & S OIL | 11948 | COUNTY LINE | 0 | 0 |
| R & S OIL COMPANY | 12363 | TONKAWA | 11 | 5 |
| R & S OPERATING | 16179 | PERRY | 1 | 1 |
| R & S RESOURCE LLCActive | 23630 | KELLYVILLE | 20 | 1 |
| R & V INVESTMENTS | 7798 | TULSA | 0 | 0 |
| R A M CORPORATION | 20106 | BLACKWELL | 0 | 0 |
| R A MILLER ENERGY INC | 12922 | EDMOND | 1 | 1 |
| R A R OIL & GAS | 16721 | KIEFER | 0 | 0 |
| R B ENERGY INC | 11717 | TULSA | 1 | 1 |