| AHRENS & MACE | 21062 | FREDERICKSBURG | 4 | 1 |
| AIKMAN BROTHERS | 4917 | MIDLAND | 0 | 0 |
| AIKMAN BROTHERS LLC | 20454 | AMARILLO | 1 | 1 |
| AILEY A C | 10958 | STROUD | 2 | 2 |
| AIR LIFT TECHNOLOGIES PRODUCTION LLCActive | 25270 | Tulsa | 0 | 0 |
| AIR OIL COMPANY | 10487 | NOWATA | 0 | 0 |
| AIRHART JOHNNY | 14134 | MCKINNEY | 0 | 0 |
| AJAX ENERGY LLC | 22331 | EDMOND | 0 | 0 |
| AJB OIL LLCActive | 24581 | TULSA | 18 | 5 |
| AKEMANN BERNARD | 20680 | WATERVILLE | 0 | 0 |
| AKER OIL & GAS COMPANY | 15820 | TULSA | 4 | 2 |
| AKERS LARENE | 19393 | PAWNEE | 0 | 0 |
| AKERS OIL COMPANY | 12549 | DUNCAN | 0 | 0 |
| AKERS WALLY | 14135 | PAWNEE | 0 | 0 |
| AKIN JR VERNA M & EMSLEY F | 4549 | MAUD | 0 | 0 |
| ALADDIN PETROLEUM CORPORATION | 2811 | WICHITA | 24 | 11 |
| ALAMEDA CORPORATION | 16284 | HOUSTON | 3 | 2 |
| ALAMO ENERGY OPERATING COMPANY | 11721 | SAN ANTONIO | 0 | 0 |
| ALAMO PETROLEUM COMPANY | 7047 | HOUSTON | 0 | 0 |
| ALAMO RESOURCES INC | 13196 | DALLAS | 68 | 3 |
| ALAMOSA DRILLING INC | 22191 | DALLAS | 0 | 0 |
| ALANI OIL COMPANY | 13722 | CANEY | 0 | 0 |
| ALASKA PRODUCTION COMPANY | 12578 | OKLAHOMA CITY | 0 | 0 |
| ALBERTY DONALD L | 13684 | OZARK | 0 | 0 |
| ALBRIGHT PAUL D OR INGER JActive | 15602 | OKEMAH | 5 | 1 |
| ALBRITTON J W | 4120 | ADA | 0 | 0 |
| ALBRITTON RESOURCES INC | 14136 | DALLAS | 11 | 3 |
| ALCON PRODUCTION INC | 15374 | EDMOND | 1 | 1 |
| ALDA OIL & GAS CORPORATION | 8479 | OKLAHOMA CITY | 19 | 9 |
| ALDRICH GARY | 18254 | PONCA CITY | 1 | 1 |
| ALDRIDGE JESSE | 18393 | OKMULGEE | 0 | 0 |
| ALEXANDER & LOOP OIL PROP INC | 5557 | TULSA | 5 | 4 |
| ALEXANDER HOWARD | 31 | TULSA | 1 | 1 |
| ALEXANDER LILA L INC | 16876 | NORMAN | 1 | 1 |
| ALEXANDER MARVIN | 19744 | JENNINGS | 0 | 0 |
| ALEXANDER OIL COMPANY | 20265 | LOCO | 0 | 0 |
| ALEXANDER OIL PROPERTIES LLCActive | 25255 | Lake Kiowa | 6 | 1 |
| ALEXANDER PRODUCTION COMPANY | 12352 | SAN ANTONIO | 0 | 0 |
| ALEXANDER PROPERTIES | 12653 | NORMAN | 0 | 0 |
| ALEXANDER PROPERTIES | 6169 | EDMOND | 0 | 0 |
| ALFORD MILDRED | 15405 | CARNEY | 0 | 0 |
| ALFORD OIL CORPORATION | 15493 | SPRING | 1 | 1 |
| ALFORD PAUL | 7065 | ADA | 1 | 1 |
| ALL EXPLORATION LLC | 14195 | OKLAHOMA CITY | 7 | 3 |
| ALLECO INVESTMENTS INC | 15803 | NOWATA | 2 | 1 |
| ALLEN BENNEActive | 21779 | RAMONA | 1 | 1 |
| ALLEN DELMAR | 2482 | OKEMAH | 3 | 0 |
| ALLEN FARMS | 17661 | NORMAN | 0 | 0 |
| ALLEN J W REVOCABLE TRUST | 3169 | TULSA | 1 | 1 |
| ALLEN KENTActive | 16185 | OKEMAH | 8 | 1 |
| ALLEN MICHAELActive | 19132 | BROKEN ARROW | 60 | 7 |
| ALLEN OIL & GAS LLCActive | 22975 | ARDMORE | 18 | 3 |
| ALLEN OIL COMPANY | 7108 | DELAWARE | 14 | 4 |
| ALLEN RICHARD R | 14065 | BARTLESVILLE | 0 | 0 |
| ALLEN WADE | 38 | OKMULGEE | 0 | 0 |
| ALLENERGY OPERATING CO INC | 21240 | COFFEYVILLE | 30 | 4 |
| ALLIANCE OIL & GAS CO INC | 40 | CORINTH | 2 | 1 |
| ALLIANCE RESOURCES CORPORATION | 16272 | DALLAS | 0 | 0 |
| ALLIED ENERGY CORPORATION | 15705 | OKLAHOMA CITY | 1 | 1 |
| ALLIED OPERATING LLCActive | 22391 | BOWLING GREEN | 11 | 1 |
| ALLIED PETROLEUM INC | 16565 | OKLAHOMA CITY | 12 | 4 |
| ALLIGATOR ROCK WELL SERVICE LLCActive | 23533 | VELMA | 20 | 2 |
| ALLISON ENERGY HOLDINGS LLC | 24624 | NICHOLS HILLS | 0 | 0 |
| ALLISON TOM & SHELLY dba T & S OIL COMPANYActive | 18336 | BARTLESVILLE | 18 | 2 |
| ALLO ENERGY INC | 18733 | EL RENO | 1 | 1 |
| ALLSUP JOHN V | 13946 | LENAPAH | 0 | 0 |
| ALLTERRA ENERGY LLC | 23765 | TULSA | 0 | 0 |
| ALMAC ENGINEERING | 15775 | OKLAHOMA CITY | 11 | 5 |
| ALMACK JOHN AND GLENDA | 20170 | PERRY | 0 | 0 |
| ALMONT ENERGY LLC | 23528 | KINGFISHER | 4 | 3 |
| ALPAR RESOURCES INC | 5338 | PERRYTON | 1 | 1 |
| ALPHA ENERGY TEXAS OPERATING LLCActive | 24640 | Denver | 31 | 1 |
| ALPHA PETRO DEVELOPMENT INC | 8756 | TULSA | 7 | 3 |
| ALPINE INC | 16941 | OKLAHOMA CITY | 81 | 14 |
| ALPINE OIL & GAS INC | 13974 | EDMOND | 19 | 11 |
| ALSUP 1-19 LLCActive | 24255 | LINDSAY | 1 | 1 |
| ALTA ENERGY CORPORATION | 10755 | DENVER | 0 | 0 |
| ALTA MESA SERVICES LP | 23508 | HOUSTON | 0 | 0 |
| ALTENREID ENERGY CORPORATION | 12943 | OKLAHOMA CITY | 1 | 1 |
| ALTEX ENERGY CORPORATION | 21912 | OKLAHOMA CITY | 7 | 3 |
| ALTEX OIL CORPORATION | 10929 | BRECKENRIDGE | 0 | 0 |
| ALTEX RESOURCES INC | 17837 | CARNEY | 96 | 8 |
| ALTMAN ENERGY INC | 11199 | TULSA | 53 | 18 |
| ALVARADO 2014 LLCActive | 23798 | HOUSTON | 16 | 6 |
| ALVIN ENERGY LLCActive | 24551 | STRATFORD | 2 | 2 |
| ALVIN PETROLEUM INC | 12125 | YUKON | 7 | 1 |
| ALWAYS CONSULTING INC | 21837 | CARROLLTON | 0 | 0 |
| AM OIL COMPANYActive | 8720 | CYRIL | 16 | 2 |
| AMARILLO EXPLORATION INC | 22341 | DALLAS | 1 | 1 |
| AMARILLO/BRAGG | 14615 | AMARILLO | 2 | 1 |
| AMAX PETROLEUM CORPORATION | 50 | HOUSTON | 17 | 9 |
| AMB EXPLORATION COMPANY LLC | 23045 | HOUSTON | 0 | 0 |
| AMBAR PETROLEUM | 16397 | BATESVILLE | 1 | 1 |
| AMBAR PETROLEUM INC | 17335 | BATESVILLE | 0 | 0 |
| AMBASSADOR OIL CORPORATION | 7950 | OKLAHOMA CITY | 118 | 29 |
| AMBER PETROLEUM CORPORATION | 16007 | SHAWNEE | 2 | 2 |
| AMBER ROYALTIES | 15409 | OKLAHOMA CITY | 0 | 0 |
| AMBRIT ENERGY CORPORATION | 16027 | DALLAS | 1 | 1 |
| AMCOLE ENERGY CORPORATION | 6424 | DALLAS | 3 | 3 |
| AMEE ENERGY & EXPLORATION | 13817 | GLADEWATER | 1 | 1 |
| AMER-ROYAL ENERGY CORP | 12611 | SHAWNEE | 2 | 2 |
| AMER-TEX ENERGY INC | 18317 | OKLAHOMA CITY | 0 | 0 |
| AMERAC ENERGY CORPORATION | 19847 | HOUSTON | 0 | 0 |
| AMEREX CORPORATION | 21249 | EDMOND | 6 | 3 |
| AMERICAN CAPITAL CORPORATION | 19244 | SAN MARCOS | 7 | 1 |
| AMERICAN CAVALIER OIL & GAS CORP | 14138 | TULSA | 5 | 3 |
| AMERICAN COMETRA INC | 12733 | FT WORTH | 5 | 1 |
| AMERICAN COMPLE PROG 1983-3Active | 15723 | HOUSTON | 0 | 0 |
| AMERICAN DISTRIBUTING COMPANY | 14721 | HOUSTON | 9 | 1 |
| AMERICAN DOMESTIC MGMT INC | 16441 | TULSA | 2 | 1 |
| AMERICAN ENERGY LLC | 20978 | LAKE ZURICH | 3 | 2 |
| AMERICAN ENERGY OPERATIONS INC | 15904 | HOUSTON | 4 | 2 |
| AMERICAN ENERGY RECOVERY INC | 20091 | OKLAHOMA CITY | 15 | 8 |
| AMERICAN ENERGY-ANADARKO LLC | 23324 | OKLAHOMA CITY | 0 | 0 |
| AMERICAN EXPLORATION DRILLING | 10961 | HUNTNGTON BEACH | 0 | 0 |
| AMERICAN EXPLORATION LLC | 21992 | ADA | 0 | 0 |
| AMERICAN INTERMTN DEV CORP | 13234 | LAYTON | 3 | 1 |
| AMERICAN INTL ENERGY CORP | 17490 | HOUSTON | 0 | 0 |
| AMERICAN LAND & TRADING CO | 8533 | HOUSTON | 1 | 1 |
| AMERICAN LEASING & OPERG INC | 13077 | CUSHING | 4 | 1 |
| AMERICAN MEASUREMENT SERVICES LLC | 23750 | MENO | 0 | 0 |
| AMERICAN NATURAL ENERGY CORP | 15307 | OKLAHOMA CITY | 0 | 0 |
| AMERICAN NATURAL ENERGY CORP | 21082 | TULSA | 0 | 0 |
| AMERICAN NATURAL RESOURCES LLC | 21592 | TULSA | 20 | 3 |
| AMERICAN OIL PARTNERS LLC | 23547 | TURTLE LAKE | 2 | 1 |
| AMERICAN PENN ENERGY INC | 12300 | CALGARY | 0 | 0 |
| AMERICAN PETROFINA CO OF TX | 55 | DALLAS | 46 | 19 |
| AMERICAN PETROLEUM & ENVIRONMENTAL CONSULTANTS INCActive | 18907 | EDMOND | 18 | 3 |
| AMERICAN PETROLEUM & MINERAL CO INCActive | 8034 | SEMINOLE | 12 | 3 |
| AMERICAN QUASAR PETROLEUM CO | 5875 | FORT WORTH | 9 | 7 |
| AMERICAN RESERVE ENERGY CORP | 18346 | TULSA | 0 | 0 |
| AMERICAN RESOURCES INC | 13233 | DALLAS | 0 | 0 |
| AMERICAN SHALLOW DEVELOPMENT INC | 14871 | TULSA | 7 | 4 |
| AMERICAN SOLAR ENERGY INC | 11825 | BINGHAMTON | 0 | 0 |
| AMERICAN STAR ENERGY & MINERAL CORP | 10592 | AMARILLO | 2 | 2 |
| AMERICAN SW PETROLEUM LTD | 13743 | LOS ANGELES | 1 | 1 |
| AMERICAN TRADING & PROD CORP | 12130 | HOUSTON | 26 | 9 |
| AMERICAN WARRIOR INC | 21199 | GARDEN CITY | 3 | 3 |
| AMERICAN WELL MGMT SERVICE INC | 15362 | NORMAN | 1 | 1 |
| AMERICAN WELL SERVICES INC | 14209 | ALTUS | 0 | 0 |
| AMERICANA ENERGY INCActive | 6951 | Ada | 181 | 4 |
| AMERICANA PETROLEUM CORP | 58 | WACO | 3 | 1 |
| AMERICO OIL COMPANY | 15808 | OKLAHOMA CITY | 2 | 2 |
| AMERIQUEST ENERGY CORPORATION | 12881 | HOUSTON | 2 | 1 |
| AMERITECH OIL & GAS CORP | 18183 | DALLAS | 2 | 1 |
| AMEROK ENERGY CO | 16164 | HOUSTON | 0 | 0 |
| AMERRIL ENERGY LLC | 22498 | HOUSTON | 13 | 1 |
| AMERROYAL ENERGY LLC | 22425 | SHAWNEE | 2 | 2 |
| AMERSON JAMES E | 10280 | TECUMSEH | 7 | 3 |
| AMES COMPANY INC (THE) | 20546 | OKLAHOMA CITY | 0 | 0 |
| AMES FIELD LLC | 19637 | OKLAHOMA CITY | 0 | 0 |
| AMES OIL & GAS CORPORATION | 7578 | HOUSTON | 48 | 4 |
| AMES OIL CORPORATION OF TEXAS | 21172 | MT VERNON | 6 | 3 |
| AMGO DEVELOPMENT COMPANY | 12574 | OKLAHOMA CITY | 0 | 0 |
| AMIS WILLIAM J | 16117 | BULLARD | 1 | 1 |
| AMPLIFY OKLAHOMA OPERATING LLC | 23079 | HOUSTON | 80 | 5 |
| AMR ENERGY CORP | 13238 | OKLAHOMA CITY | 1 | 1 |
| AMRWR, LLCActive | 25054 | San Antonio | 1 | 1 |
| AMS ENERGY COMPANY | 23186 | PORTLAND | 0 | 0 |
| AMS ENERGY VENTURES LC | 23785 | MENO | 0 | 0 |
| AMS ENERGY VENTURES LLC | 23975 | RINGWOOD | 0 | 0 |
| AMSITO OIL COMPANY LLC | 20107 | DENTON | 17 | 1 |
| AMSLER JERRY & DENESE | 16251 | ENID | 1 | 1 |
| AMSTAR DRILLING COMPANY LTD | 14140 | BETHANY | 0 | 0 |
| AMSTEL INC | 20086 | TULSA | 0 | 0 |
| AMVEST OSAGE INC | 21050 | SKIATOOK | 3 | 2 |
| AN-SON CORP | 78 | OKLAHOMA CITY | 372 | 44 |
| ANA-TOK OPERATING COMPANY INC | 17372 | AMARILLO | 1 | 1 |
| ANABACO OPERATING COMPANY | 60 | STILLWATER | 6 | 2 |
| ANADARKO BASIN OIL& GAS LEASE INC | 14141 | SAYRE | 2 | 1 |
| ANADARKO DISPOSAL INC | 15857 | EL RENO | 0 | 0 |
| ANADARKO DOZER AND TRUCKING LLCActive | 23290 | TULSA | 0 | 0 |
| ANADARKO E & P ONSHORE LLCActive | 388 | HOUSTON | 149 | 23 |
| ANADARKO LAND & EXPLORATION CO | 10400 | TULSA | 38 | 17 |
| ANADARKO MINERALS INCActive | 19904 | OKLAHOMA CITY | 212 | 16 |
| ANADARKO OPERATING LLC | 19598 | OKLAHOMA CITY | 0 | 0 |
| ANADARKO PETROLEUM CORPORATION | 14597 | HOUSTON | 258 | 21 |
| ANAHEIM LTD | 17143 | TULSA | 0 | 0 |
| ANALENA CORPORATION | 15525 | DALLAS | 1 | 1 |
| ANANDA ENERGY INC | 18366 | PAMPA | 0 | 0 |
| ANC INVESTMENTS LLC | 21583 | ENID | 0 | 0 |
| ANCHOR ENERGY | 15114 | OKLAHOMA CITY | 1 | 1 |
| ANCHOR OIL & GAS INC | 14142 | DUNCAN | 5 | 3 |
| ANCHORAGE OIL & GAS INC | 8306 | OKLAHOMA CITY | 11 | 6 |
| ANCO ACCOUNT | 63 | WICHITA FALLS | 0 | 0 |
| ANDCO MUD INC | 15550 | EDMOND | 7 | 2 |
| ANDECK ENERGY CORPORATION | 14210 | OKLAHOMA CITY | 0 | 0 |
| ANDECK RESOURCES INC | 14211 | OKLAHOMA CITY | 0 | 0 |
| ANDERMAN OPERATING COMPANY INC | 20468 | DENVER | 0 | 0 |
| ANDERSON CARL T | 65 | WICHITA FALLS | 2 | 1 |
| ANDERSON FLOYD MELTON REVOCABLE TRUSTActive | 17833 | YUKON | 0 | 0 |
| ANDERSON GEORGE L | 4455 | EDMOND | 0 | 0 |
| ANDERSON JERRY W | 8843 | BARTLESVILLE | 4 | 1 |
| ANDERSON OIL & GAS | 12558 | VELMA | 0 | 0 |
| ANDERSON OIL & GAS ACCOUNT | 70 | WICHITA FALLS | 0 | 0 |
| ANDERSON OIL COMPANY | 69 | BURKBURNETT | 33 | 12 |
| ANDERSON PETROLEUM ACCOUNT | 72 | WICHITA FALLS | 38 | 4 |
| ANDERSON RICHARD | 21929 | WALTERS | 2 | 1 |
| ANDERSON ROBERT C ESTATE | 2980 | SAN DIEGO | 15 | 7 |
| ANDERSON ROBERT E | 19353 | ENID | 1 | 1 |