| SWIFT CARL E | 13508 | CHELSEA | 2 | 1 |
| SWIFT ENERGY COMPANY | 11387 | HOUSTON | 8 | 5 |
| SWINDELL BILLY R | 17631 | WYNONA | 0 | 0 |
| SWINDLER JAMES S | 12445 | TULSA | 1 | 1 |
| SWINEA WELL SERVICE INCActive | 5306 | Drumright | 9 | 3 |
| SWITCHGRASS E&P OPERATING, LLCActive | 25145 | Denver | 0 | 0 |
| SWN PRODUCTION LLC | 4804 | SPRING | 146 | 31 |
| SWS OPERATING LLC | 24224 | LAWTON | 0 | 0 |
| SWS PLUGGING OPERATIONS LLCActive | 24683 | SEDAN | 31 | 5 |
| SWSI FLUIDS LLC | 22452 | OKLAHOMA CITY | 0 | 0 |
| SYDEBOTHAM A CURTIS | 21835 | OCHELATA | 0 | 0 |
| SYDSON D'ORO EXPLORATION CO. | 12510 | HOUSTON | 6 | 4 |
| SYGMA PETROLEUM CORP | 17121 | OKLAHOMA CITY | 0 | 0 |
| SYLVAN OIL OPERATING COMPANY | 3471 | TULSA | 4 | 3 |
| SYNAR VAL W | 8487 | TALALA | 2 | 1 |
| SYNERGEX INC | 13613 | OKLAHOMA CITY | 16 | 3 |
| T & B OIL COMPANY INC | 5143 | ARDMORE | 2 | 1 |
| T & G HOLDING LLC | 21757 | PAULS VALLEY | 0 | 0 |
| T & J OIL PRODUCTION LLCActive | 20533 | LONE GROVE | 43 | 3 |
| T & J OPERATING | 19045 | ADA | 4 | 2 |
| T & K OIL INCActive | 20416 | SEMINOLE | 20 | 3 |
| T & L WELL SERVICE LLC | 22009 | TONKAWA | 0 | 0 |
| T & M OIL & ROYALTY | 15217 | ADA | 0 | 0 |
| T & M OIL COMPANY | 15367 | BARTLESVILLE | 0 | 0 |
| T & P EXPLORATION | 14402 | ADDISON | 0 | 0 |
| T & P NATURAL GAS OPERATIONS LLCActive | 23332 | GUYMON | 1 | 1 |
| T & S MUD DISPOSAL LLC | 20209 | LINDSAY | 0 | 0 |
| T & T OPERATING | 18917 | NOCONA | 0 | 0 |
| T & W OIL & GAS L L C | 20784 | MARLOW | 0 | 0 |
| T & W WARD OIL LLCActive | 24494 | BLACKWELL | 24 | 1 |
| T AND L OIL INCActive | 21251 | TONKAWA | 44 | 3 |
| T AND S RESOURCES | 15441 | RIPLEY | 0 | 0 |
| T B C INC | 14070 | COWETA | 9 | 1 |
| T B H OIL COMPANY | 2127 | ALTUS | 2 | 1 |
| T B K ENERGY COMPANYActive | 19409 | Brenham | 32 | 8 |
| T BAR M ENERGY RESOURCES LLCActive | 23380 | Sapulpa | 576 | 8 |
| T C CRAIGHEAD & COMPANY LLCActive | 10843 | Ardmore | 29 | 16 |
| T D ENERGY COMPANY INC | 19559 | BROKEN ARROW | 4 | 3 |
| T D OPERATING INC | 15130 | TULSA | 0 | 0 |
| T E F INCActive | 18913 | MADILL | 3 | 1 |
| T E L OIL & GAS CORPORATIONActive | 2128 | GUYMON | 10 | 1 |
| T G & S OILActive | 20276 | MARIETTA | 1 | 1 |
| T G T PETROLEUM CORPORATION | 5560 | WICHITA | 0 | 0 |
| T H K OIL PRODUCERS | 6786 | FORT WORTH | 0 | 0 |
| T I O SERVICES INC | 13696 | HOUSTON | 0 | 0 |
| T INVESTMENTS INC | 18282 | OKLAHOMA CITY | 0 | 0 |
| T J EXPLORATION INC | 12417 | ENID | 0 | 0 |
| T K DRILLING CORPActive | 17565 | TULSA | 96 | 2 |
| T L B OIL COMPANY | 12195 | OKLAHOMA CITY | 8 | 5 |
| T L C OIL INCActive | 19183 | SEMINOLE | 15 | 2 |
| T N T ENERGY COMPANY | 16170 | BELCHER | 0 | 0 |
| T N T ROYALTY COMPANY | 11323 | SHAWNEE | 4 | 3 |
| T O N INC | 15896 | OKLAHOMA CITY | 0 | 0 |
| T R R INC | 22803 | HOUSTON | 0 | 0 |
| T REX INC | 16590 | NAPLES | 3 | 2 |
| T S B T OIL & GAS PROPERTIES | 15368 | MOORE | 1 | 1 |
| T S R SERVICES INC | 19902 | ELMORE CITY | 0 | 0 |
| T T & R LLC | 22382 | TAHLEQUAH | 11 | 1 |
| T T & T INC | 14910 | SHAWNEE | 5 | 1 |
| T W LAW LLCActive | 24380 | MUSKOGEE | 13 | 1 |
| T WILLOUGHBY, LLCActive | 25044 | ADA | 32 | 1 |
| T-D OIL | 19515 | CEMENT | 1 | 1 |
| T-D OIL INC | 21291 | CEMENT | 6 | 1 |
| T-K EXPLORATION COMPANY | 16395 | OKLAHOMA CITY | 0 | 0 |
| T-N-T ENGINEERING INC | 21417 | WICHITA FALLS | 0 | 0 |
| T-Y DEVELOPMENT CORPORATION | 21167 | PERRYTON | 3 | 2 |
| T.C. HARRIS PUMPING LLCActive | 24950 | HENNESSEY | 19 | 8 |
| T2 OPERATING CORPORATIONActive | 24971 | Denver | 0 | 0 |
| TACHA ARNOLD F | 16074 | SKIATOOK | 3 | 0 |
| TACK OPERATING LLC | 20177 | OKLAHOMA CITY | 51 | 22 |
| TAG OIL CO LLCActive | 22979 | RINGLING | 16 | 2 |
| TAG OPERATING COMPANY INC | 20429 | HOUSTON | 2 | 2 |
| TAG PETROLEUM INC | 8997 | STILLWATER | 14 | 2 |
| TAG TEAM RESOURCES LLCActive | 20470 | EUFAULA | 447 | 7 |
| TAHOE EXPLORATION INC | 18815 | EDMOND | 3 | 2 |
| TALALA CREEK OIL COMPANY | 14055 | MIAMI | 0 | 0 |
| TALBERT EUGENE OPERATING CO | 11509 | TYLER | 2 | 1 |
| TALBERT RANNIE L dba TALBERT PRODUCTIONSActive | 19964 | CEMENT | 1 | 1 |
| TALL GRASS OPERATING LLC | 22549 | SHERIDAN | 0 | 0 |
| TALL OAK MIDCON LLC | 22940 | EDMOND | 1 | 1 |
| TALLEY THOMAS W | 13630 | HOBART | 0 | 0 |
| TALLGRASS ENERGY LLC | 22553 | TULSA | 0 | 0 |
| TALUS INC | 2231 | GRAHAM | 2 | 1 |
| TAMASHIRO CHARLES F | 22131 | ADA | 0 | 0 |
| TAMWORTH RESOURCES LLCActive | 24525 | Tulsa | 102 | 4 |
| TANDEM ENERGY CORPORATION | 21731 | MIDLAND | 8 | 3 |
| TANDEM OIL INC | 11990 | OKLAHOMA CITY | 8 | 3 |
| TANGENT OIL AND GAS LLCActive | 24811 | BROKEN ARROW | 6 | 1 |
| TANK TRUCK'S INCActive | 15892 | SAPULPA | 1 | 1 |
| TANNER ENERGIES INC | 19988 | ARDMORE | 0 | 0 |
| TANNER RESOURCES CORPORATION | 8692 | IDABEL | 2 | 2 |
| TAP PETROLEUM INC | 15617 | CLEVELAND | 2 | 1 |
| TAPOIL INC | 17870 | ELMORE CITY | 19 | 4 |
| TAPSTONE ENERGY LLC | 23467 | OKLAHOMA CITY | 0 | 0 |
| TAPSTONE ENERGY LLC | 24505 | OKLAHOMA CITY | 0 | 0 |
| TAR HEEL OIL PRODUCERS | 13536 | JENNINGS | 0 | 0 |
| TARGA OIL & GAS INC | 11599 | DALLAS | 1 | 1 |
| TARGA PIPELINE MID-CONTINENT LLCActive | 21575 | Houston | 2 | 1 |
| TARKA ENERGY LLC | 23529 | HOUSTON | 5 | 1 |
| TARO DRILLING | 15907 | STROUD | 0 | 0 |
| TARPLEY JOHN G | 6819 | MUSKOGEE | 13 | 2 |
| TARRANT TRACY DBA TRACE OIL | 19397 | CRESCENT | 11 | 7 |
| TARTER BARBARA | 15148 | HEALDTON | 0 | 0 |
| TARWATER OIL & GAS LLC | 13961 | SAN JOSE | 40 | 7 |
| TASCOSA GAS COMPANY | 2135 | OKLAHOMA CITY | 3 | 1 |
| TAT INC | 12723 | OKLAHOMA CITY | 84 | 10 |
| TATCO INC | 22335 | SAPULPA | 0 | 0 |
| TATE EXPLORATION | 16424 | TULSA | 0 | 0 |
| TATER OIL COMPANY | 13534 | TULSA | 4 | 3 |
| TATNO LLC | 23751 | CASTLE | 0 | 0 |
| TATRO TOMMY | 17582 | OKMULGEE | 22 | 5 |
| TAU VENTURES | 19365 | TULSA | 2 | 2 |
| TAUBERT & STEED | 15736 | WICHITA FALLS | 1 | 1 |
| TAURUS OPERATING INC | 20537 | MIDLAND | 0 | 0 |
| TAYLOR ALBERT W | 5695 | TULSA | 0 | 0 |
| TAYLOR CLIFFORD | 16748 | BARNSDALE | 0 | 0 |
| TAYLOR E G | 19230 | LAWTON | 0 | 0 |
| TAYLOR ENERGY CORPORATION | 19168 | AMARILLO | 1 | 1 |
| TAYLOR INTERNATIONAL INC | 7308 | DRUMRIGHT | 96 | 5 |
| TAYLOR JACK | 15906 | DAVIS | 0 | 0 |
| TAYLOR JAMES A | 15708 | PAWHUSKA | 0 | 0 |
| TAYLOR L R | 15386 | ARDMORE | 5 | 4 |
| TAYLOR M R | 18559 | CHANDLER | 0 | 0 |
| TAYLOR OIL CO | 7799 | NOWATA | 1 | 1 |
| TAYLOR OIL COMPANY | 2809 | EDMOND | 0 | 0 |
| TAYLOR PETROLEUM LLC | 21642 | CRESCENT | 8 | 1 |
| TAYLOR PRODUCTION COMPANY | 11993 | COLLINSVILLE | 0 | 0 |
| TAYLOR R C COMPANIES INC | 14151 | OKLAHOMA CITY | 58 | 14 |
| TAYLOR REX | 20860 | TULSA | 1 | 1 |
| TAYLOR ROY | 16632 | OOLOGAH | 3 | 1 |
| TAYLOR ROY & KENDLE O L | 17208 | OOLOGAH | 3 | 1 |
| TAYLOR TIMOTHY BRECK | 24601 | BEGGS | 0 | 0 |
| TAYLOR WILLIAM A | 19148 | EDMOND | 1 | 1 |
| TAZ TRUCKING LLCActive | 24377 | — | 0 | 0 |
| TBD ACQUISTIONS LLCActive | 24385 | DUNCAN | 25 | 3 |
| TBI EXPLORATION INC | 7765 | MIDLAND | 18 | 10 |
| TC ENERGY LLCActive | 21425 | COVINGTON | 3 | 2 |
| TC OIL LLCActive | 24846 | DUNCAN | 68 | 1 |
| TC OPERATING LLC | 21195 | DALLAS | 0 | 0 |
| TC3 OPERATING COMPANY | 18456 | DALLAS | 1 | 1 |
| TCINA INCActive | 11432 | SEMINOLE | 33 | 9 |
| TD OIL & GAS LLC | 20222 | DUNCAN | 8 | 2 |
| TD OPERATING INCActive | 20134 | HINTON | 43 | 17 |
| TDT INDUSTRIES | 13150 | ADA | 0 | 0 |
| TDTM TRANSPORTS LLC | 22878 | ERICK | 0 | 0 |
| TE-RAY ENERGY INC | 13763 | OKLAHOMA CITY | 13 | 6 |
| TE-RAY LAND SERVICES INC | 19593 | OKLAHOMA CITY | 0 | 0 |
| TE-RAY RESOURCES LLCActive | 20522 | OKLAHOMA CITY | 113 | 18 |
| TEAFATILLER LIMUEL & RITA | 6971 | MARIETTA | 2 | 2 |
| TEALE F WILLIAM | 14284 | TULSA | 3 | 3 |
| TEAM INC | 12244 | TULSA | 0 | 0 |
| TEBCO INC | 11238 | TULSA | 2 | 2 |
| TEC RESOURCES LLC | 20203 | THE WOODLANDS | 124 | 6 |
| TECHNICAL ENERGY SERVICES INCActive | 18785 | NORMAN | 30 | 14 |
| TECOLOTE ENERGY OPERATING LLC | 23786 | FORT WORTH | 4 | 1 |
| TEE CEE'S INCActive | 22282 | DRUMRIGHT | 24 | 5 |
| TEEL PRODUCTION COMPANY | 2145 | TULSA | 0 | 0 |
| TEEL SR ROY M ESTATE | 7042 | TULSA | 2 | 1 |
| TEEPEE OIL & GAS INC | 9052 | YUKON | 3 | 2 |
| TEHZ OPERATIONS LLC | 23889 | OKLAHOMA CITY | 0 | 0 |
| TEJAY PRODUCTION CO | 8816 | RICHARDSON | 1 | 1 |
| TEKENERGY INC | 1728 | OKLAHOMA CITY | 12 | 4 |
| TELSTAR OIL & GAS CORP | 17001 | OKLAHOMA CITY | 1 | 1 |
| TEMA OIL AND GAS COMPANY | 20908 | HOUSTON | 0 | 0 |
| TEMA OIL COMPANY | 7504 | OKLAHOMA CITY | 1 | 1 |
| TEMEX ENERGY INC | 15295 | OKLAHOMA CITY | 1 | 1 |
| TEMEX INC | 4435 | SHREVEPORT | 1 | 1 |
| TEMPLAR OPERATING LLC | 22738 | EDMOND | 7 | 4 |
| TEMPLEX INC | 7371 | SHREVEPORT | 1 | 1 |
| TEN GRAND ENERGY COMPANY INC | 10567 | NACHOGDOCHES | 2 | 1 |
| TENISON OIL COMPANYActive | 17907 | ABILENE | 1 | 1 |
| TENNECO OIL COMPANY | 2146 | AMARILLO | 325 | 46 |
| TENNYSON OIL & GASActive | 22577 | MUSKOGEE | 12 | 3 |
| TEOCALLI EXPLORATION LLCActive | 24262 | Kingfisher | 616 | 19 |
| TEP ANADARKO BASIN OPERATING LLC | 24122 | DALLAS | 0 | 0 |
| TEPEE PETROLEUM COMPANY INC | 19077 | HOUSTON | 0 | 0 |
| TERHUNE HARRY C | 3572 | BARTLESVILLE | 4 | 1 |
| TERHUNE OPAL S | 20060 | BARTLESVILLE | 0 | 0 |
| TERM OIL CO | 13638 | TULSA | 0 | 0 |
| TERNION LTD. | 16201 | LITTLETON | 0 | 0 |
| TEROKA J OIL COMPANY INC | 16432 | OKLAHOMA CITY | 0 | 0 |
| TERRA PRODUCTION COMPANY | 12477 | OKEMAH | 30 | 8 |
| TERRAIN ENERGY LLC | 24319 | DALLAS | 1 | 1 |
| TERRAPIN ENERGY LLCActive | 22186 | OKMULGEE | 67 | 2 |
| TERRAQUEST CORPORATION | 16548 | EDMOND | 2 | 2 |
| TERRELL EXPLORATION INC | 13764 | LONE OAK | 0 | 0 |
| TERRELL ROSE | 18396 | OOLOGAH | 0 | 0 |
| TERRITORY RESOURCES LLCActive | 22388 | STILLWATER | 568 | 16 |
| TERRY JACK | 5397 | KONAWA | 11 | 2 |
| TERRY JOHN TRUST | 20927 | AURORA | 8 | 2 |
| TERRY PRODUCTION COMPANY | 2606 | STROUD | 7 | 5 |
| TERZAN ENERGY II LLCActive | 24140 | CHANDLER | 110 | 4 |
| TES ENTERPRISES LLC | 22292 | NORMAN | 0 | 0 |
| TESORO EXPLORATION & PROD CO | 2151 | SAN ANTONOIO | 0 | 0 |
| TESSERA ENERGY LLC | 21803 | OKLAHOMA CITY | 45 | 12 |
| TESSIN ENERGY COMPANY | 13072 | HOUSTON | 0 | 0 |
| TESTCO PRODUCTION COMPANY | 8622 | WATONGA | 1 | 1 |
| TESTCO SWD COMPANY | 8240 | WATONGA | 1 | 1 |
| TETRA ENERGY LLC | 23502 | FORT SMITH | 0 | 0 |
| TEX-OK ENERGY, LIMITED PARTNERSHIPActive | 18105 | CODY | 59 | 5 |