| LUCAS HENRY K | 18438 | TATUMS | 12 | 1 |
| LUCKY ACE PETROLEUM LLC | 21472 | CARROLLTON | 48 | 6 |
| LUCKY FOUR OIL & GAS COMPANYActive | 11793 | SASAKWA | 104 | 2 |
| LUCKY OIL COMPANY | 18738 | COMANCHE | 3 | 3 |
| LUCRE OIL COMPANY | 19727 | MUSKOGEE | 25 | 2 |
| LUKE OIL COMPANYActive | 18170 | BRISTOW | 53 | 1 |
| LUKON INC | 16226 | ENID | 0 | 0 |
| LUNA RUBEN & JUDY | 14626 | MOUNDS | 1 | 1 |
| LUNAR INVESTMENTS INCActive | 20811 | OKLAHOMA CITY | 33 | 5 |
| LUNDGAARD LOUIS H | 5582 | ADA | 0 | 0 |
| LUNDY LINDA SUSANActive | 24619 | COUNCIL HILL | 3 | 1 |
| LUNSFORD C K INC | 10114 | DRUMRIGHT | 0 | 0 |
| LUTHER OIL INC | 8400 | CAMERON PARK | 19 | 6 |
| LUWEEN ENERGY LLCActive | 24667 | OKLAHOMA CITY | 12 | 3 |
| LVI ENTERPRISES TRUST | 16994 | PLANO | 4 | 1 |
| LVM OIL PRODUCTION LLCActive | 22349 | YALE | 25 | 4 |
| LXS INC | 15562 | STIGLER | 0 | 0 |
| LYDA GERALD SR X BAR RANCH | 17791 | SAN ANTONIO | 2 | 1 |
| LYNAN ENERGY INC | 15328 | OKLAHOMA CITY | 11 | 5 |
| LYNCH JERRY | 21202 | COPAN | 0 | 0 |
| LYNCH LESLIE JOHN | 17291 | TURPIN | 0 | 0 |
| LYNCH RICHARD G | 21937 | SPERRY | 0 | 0 |
| LYNN WILLIAM R | 16881 | PAWHUSKA | 0 | 0 |
| LYNSON AUTRY INCActive | 17967 | HOBART | 15 | 2 |
| LYNTAB LLP | 21691 | TULSA | 0 | 0 |
| LYNX ENERGY COMPANY INC | 18190 | DALLAS | 5 | 4 |
| LYNX ENTERPRISES INC | 13479 | DRUMRIGHT | 2 | 1 |
| LYNX OIL & GAS INC | 21982 | DRUMRIGHT | 0 | 0 |
| LYNX OKLAHOMA OPERATING LLC | 24306 | OKLAHOMA CITY | 0 | 0 |
| LYNX OPERATING COMPANY INC | 21098 | DALLAS | 1 | 1 |
| LYON ENERGY INC | 13158 | PLANO | 0 | 0 |
| LYON HOYLE | 10989 | SASAKWA | 1 | 1 |
| LYONS & LYONS INCActive | 18426 | TULSA | 40 | 7 |
| LYRIC ENERGY INC | 10405 | AMARILLO | 3 | 1 |
| LYSANDER RESOURCES INC | 15315 | OKLAHOMA CITY | 1 | 1 |
| M & A PETROLEUM INC | 6876 | LAMPASAS | 10 | 1 |
| M & D OIL & GAS | 17128 | BARTLESVILLE | 6 | 1 |
| M & D PUMPING SERVICE INC | 20011 | RINGWOOD | 1 | 1 |
| M & G PETROLEUM | 12977 | ASHER | 0 | 0 |
| M & H ENTERPRISES | 3316 | BARTLESVILLE | 7 | 1 |
| M & J PRODUCTION COMPANY | 10571 | TONKAWA | 3 | 2 |
| M & L PETROLEUM CORPORATION | 10469 | WATERTOWN | 0 | 0 |
| M & M ENVIRONMENTAL OILFIELD SERVICES | 23433 | — | 0 | 0 |
| M & M EXPLORATION INCActive | 19618 | WESTMINSTER | 64 | 3 |
| M & M PETROLEUM COMPANY | 7538 | MANNFORD | 1 | 1 |
| M & M PRODUCTION | 20769 | DAVENPORT | 26 | 1 |
| M & R ENTERPRISES LC | 20742 | SEMINOLE | 19 | 8 |
| M & S ENERGY | 13186 | PRYOR | 2 | 1 |
| M & S OIL & GAS | 14913 | OKLAHOMA CITY | 1 | 1 |
| M & S OIL COMPANY | 6391 | DEWEY | 29 | 1 |
| M & S OIL COMPANY LLC | 22217 | COPAN | 1 | 1 |
| M & S OPERATING LLC | 18869 | OKLAHOMA CITY | 1 | 1 |
| M & T OIL COMPANY | 18401 | COPAN | 0 | 0 |
| M & T PRODUCTION COMPANY LLC | 20093 | TULSA | 0 | 0 |
| M AND V RESOURCES INCActive | 19063 | CRESCENT | 10 | 3 |
| M B OILFIELD SERVICES CORP | 20309 | OKLAHOMA CITY | 2 | 1 |
| M C L COMPANY LTD | 11503 | EDMOND | 5 | 3 |
| M CRAIG DEISENROTH OIL & GAS LLCActive | 24866 | TULSA | 69 | 2 |
| M E BOOTH CORPORATIONActive | 6714 | ADA | 21 | 1 |
| M E KLEIN & ASSOCIATES LLCActive | 19996 | WASHINGTON | 61 | 9 |
| M G ENERGY LLCActive | 24564 | CUSHING | 17 | 2 |
| M G F OIL CORPORATION | 6674 | TULSA | 20 | 7 |
| M H OIL & GAS LLC | 21079 | OKEENE | 2 | 2 |
| M J M D INC | 15259 | BURLINGTON | 0 | 0 |
| M J M DRILLING PARTNERSHIP IN | 18758 | OKLAHOMA CITY | 0 | 0 |
| M K M OIL & GAS CORPORATION | 13666 | ALLEN | 1 | 1 |
| M K W INC | 4925 | OKLAHOMA CITY | 6 | 1 |
| M M ENERGY INCActive | 19118 | OKLAHOMA CITY | 249 | 22 |
| M M H OIL COMPANY | 12395 | IRVING | 1 | 1 |
| M M RESOURCES INC | 7995 | EDMOND | 24 | 10 |
| M P & R PRODUCTION CO | 4980 | SHAWNEE | 23 | 5 |
| M R C J OIL CO | 7813 | MANNFORD | 8 | 2 |
| M S PRODUCTIONS INC | 15335 | PITTSBURG | 17 | 2 |
| M T C OPERATING | 16564 | DUNCAN | 1 | 1 |
| M T W OIL CO | 4781 | TERRAL | 0 | 0 |
| M&D ENERGY LLCActive | 25112 | Moore | 17 | 1 |
| M-B OPERATING CO INC | 19960 | ROWLETT | 2 | 2 |
| M-B SWD INC | 17380 | CRESCENT | 1 | 1 |
| M-F OIL & GAS INC | 11536 | OKLAHOMA CITY | 4 | 1 |
| M-J OIL AND GAS LLCActive | 23937 | WILSON | 4 | 1 |
| M-K-M OIL COMPANY | 12846 | DELAWARE | 0 | 0 |
| M-P PETROLEUM INC | 5709 | MCPHERSON | 0 | 0 |
| M-R VENTURES LLCActive | 22695 | DALLAS | 2 | 1 |
| M-S-C CORPORATION | 1337 | HOUSTON | 1 | 1 |
| M-SQUARED LLCActive | 24030 | OKMULGEE | 1 | 1 |
| M. H. OIL, INC.Active | 25020 | BRISTOW | 2 | 1 |
| M. M. & M. RESOURCES, INC.Active | 10235 | OKLAHOMA CITY | 57 | 1 |
| M/E ENERGY LLC | 20642 | KINGFISHER | 0 | 0 |
| M3V ENERGY LLCActive | 24002 | PERRYTON | 147 | 17 |
| MABEE PETROLEUM CORPORATION | 1340 | TULSA | 1 | 1 |
| MABRAY DEAN R | 19709 | STUART | 1 | 1 |
| MABREY BRUCE RActive | 21598 | OKMULGEE | 9 | 1 |
| MABRY JIM | 19177 | CHEYENNE | 0 | 0 |
| MAC ENERGY LLC | 22744 | NEWCASTLE | 8 | 1 |
| MAC OIL COMPANY | 11108 | TULSA | 2 | 1 |
| MACANUDO ENERGY INC | 16853 | SAPULPA | 0 | 0 |
| MACDONALD BURNS & NORRIS #2 | 1342 | TAYLOR | 0 | 0 |
| MACH JOE INSPECTION INC | 16472 | TULSA | 2 | 1 |
| MACH PETROLEUM INC | 19885 | TULSA | 0 | 0 |
| MACK ENERGY CO.Active | 11739 | OKLAHOMA CITY | 1,172 | 30 |
| MACK OIL COMPANY | 1344 | DUNCAN | 19 | 9 |
| MACKELLAR INCActive | 1345 | OKLAHOMA CITY | 259 | 25 |
| MACKEY CONSULTING & LEASING LLCActive | 22179 | CLEVELAND | 49 | 2 |
| MACKLANBURG-DUNCAN COMPANY | 15648 | OKLAHOMA CITY | 0 | 0 |
| MACLAINE ENTERPRISES INC | 8432 | TULSA | 0 | 0 |
| MACLAND ENERGY CORP | 12672 | OKLAHOMA CITY | 36 | 13 |
| MACMART INC | 15734 | WYNNEWOOD | 22 | 4 |
| MACPYBAL CORPORATION | 15192 | PURCELL | 0 | 0 |
| MACRO OIL COMPANY | 7932 | BARTLESVILLE | 6 | 2 |
| MACY PETROLEUM COMPANY | 7191 | EDMOND | 0 | 0 |
| MACY RESOURCES LLCActive | 22526 | BARTLESVILLE | 4 | 1 |
| MADCAP RESOURCES, LLCActive | 25212 | EDMOND | 40 | 3 |
| MADDEN OIL COMPANY | 16031 | SAPULPA | 0 | 0 |
| MADDOX ENERGY CORPORATION | 13414 | DALLAS | 1 | 1 |
| MADDUX GREG & REBECCA | 21869 | SAND SPRINGS | 0 | 0 |
| MADDUX OPERATING COMPANY | 1347 | SHAWNEE | 0 | 0 |
| MADISON RESOURCES CORPORATION | 13911 | OKLAHOMA CITY | 1 | 1 |
| MADURO OIL & GAS LLC | 23541 | DALLAS | 0 | 0 |
| MAGAW & ZIMMER | 3789 | PERRY | 76 | 14 |
| MAGELLAN EXPLORATION CO LTD | 20008 | BETHANY | 15 | 3 |
| MAGGARD JOEActive | 16006 | MANNFORD | 11 | 1 |
| MAGGARD JOE DON | 8279 | MANNFORD | 2 | 1 |
| MAGGARD OIL CO INC | 4947 | MANFORD | 8 | 4 |
| MAGGARD SUPPLY & OIL COMPANY | 17171 | MANNFORD | 7 | 4 |
| MAGGARD VIRGINIA J | 16951 | MANNFORD | 0 | 0 |
| MAGGARD VIRGINIA J | 7742 | MANNFORD | 0 | 0 |
| MAGIC FARMS LLCActive | 25152 | STROUD | 32 | 5 |
| MAGIC INVESTMENTS LLCActive | 4746 | EDMOND | 7 | 6 |
| MAGMA RESOURCES LLCActive | 21767 | PAOLI | 7 | 3 |
| MAGNA OIL & GAS INC | 10858 | CLEVELAND | 2 | 1 |
| MAGNATEX CORP | 17158 | MIDLAND | 0 | 0 |
| MAGNESS PETROLEUM CORP | 16468 | OKLAHOMA CITY | 5 | 4 |
| MAGNET TRUCKING LLC | 23360 | — | 0 | 0 |
| MAGNOLIA PETROLEUM INC | 22814 | TULSA | 2 | 1 |
| MAGNOLIA PETROLEUM LTD | 12584 | TULSA | 1,221 | 44 |
| MAGNOLIA PIPELINE CO | 1352 | OKLAHOMA CITY | 0 | 0 |
| MAGNUM ENERGY INCActive | 15447 | NORMAN | 42 | 10 |
| MAGNUM ENTERPRISES INC | 16566 | RAYMORE | 1 | 1 |
| MAGNUM PETROLEUM INC | 18536 | PALM DESERT | 5 | 4 |
| MAGNUM SALT WATER DISPOSAL INC | 19989 | OKLAHOMA CITY | 0 | 0 |
| MAGUIRE JAMES Q INC | 4692 | NORMAN | 8 | 4 |
| MAGUIRE OIL COMPANY | 3975 | DALLAS | 14 | 4 |
| MAHAN-ROWSEY INC | 8331 | OKLAHOMA CITY | 15 | 6 |
| MAIER RESOURCES INC | 12040 | OKLAHOMA CITY | 18 | 6 |
| MAIKO EXPLO & DRILLING INC | 14658 | PONCA CITY | 0 | 0 |
| MAINTAINER ENERGY RES CORP INC | 8136 | MORRIS | 1 | 1 |
| MAITLAND OIL AND GAS CORP | 19934 | OKLAHOMA CITY | 5 | 1 |
| MAJESTIC ENERGY COMPANY LLCActive | 24291 | KEIFER | 30 | 1 |
| MAJESTIC ENERGY CORPORATION | 10273 | SHREVEPORT | 14 | 1 |
| MAJOIL COMPANY | 13082 | OKLAHOMA CITY | 0 | 0 |
| MAJOR COUNTY DISPOSAL INC | 9151 | SHAWNEE | 0 | 0 |
| MAJOR ENTERPRISES INC | 23481 | — | 0 | 0 |
| MAJOR OIL CO LLC | 22036 | DRUMRIGHT | 0 | 0 |
| MAJORS EUGENE E | 3812 | HOLDENVILLE | 6 | 2 |
| MAJORS GARY E | 6682 | HOLDENVILLE | 1 | 1 |
| MAJORS JIMMY R | 19468 | OSCEOLA | 0 | 0 |
| MAJORS JOHN dba MAJORS PRODUCTION COActive | 7580 | WELEETKA | 17 | 4 |
| MAJORS MICHAEL | 8085 | HOLDENVILLE | 2 | 1 |
| MAKAR PRODUCTION- OKLAHOMAActive | 25100 | Graham | 0 | 0 |
| MALAN ENERGY LLCActive | 24416 | Nichols Hills | 4 | 1 |
| MALKA PRODUCTION COMPANY | 6683 | OKLAHOMA CITY | 17 | 11 |
| MALLARD OIL & GAS | 21190 | CODY | 0 | 0 |
| MALLORN ENERGY LLCActive | 24643 | EDMOND | 7 | 3 |
| MALLOW JACK OIL | 16719 | WALTERS | 0 | 0 |
| MALONEY HELEN V dba PENN-OK CORPORATIONActive | 14010 | HOCKESSIN | 1 | 1 |
| MALPAIS INCActive | 21493 | PRAGUE | 2 | 1 |
| MALSON & CASTLE | 17097 | CRAWFORD | 0 | 0 |
| MALSON OIL COMPANY | 17516 | CRAWFORD | 5 | 4 |
| MALVERN GROUP INC | 17029 | CLEARWATER | 0 | 0 |
| MALY & MALY OIL | 13736 | BEGGS | 7 | 1 |
| MALY JOE W | 3120 | BEGGS | 0 | 0 |
| MAMMEL A D | 6230 | DALLAS | 0 | 0 |
| MANCHESTER GAS STORAGE INC | 9210 | TULSA | 2 | 1 |
| MANDALAY ENERGY RESOURCES LLC | 22298 | DENVER | 14 | 3 |
| MANGRUM LENA | 4968 | HASKELL | 0 | 0 |
| MANGUM OILFIELD SERVICE INC | 15514 | EUFAULA | 0 | 0 |
| MANIS OIL & GAS INCActive | 7714 | BLANCHARD | 18 | 4 |
| MANNA CORPORATION | 16911 | OKLAHOMA CITY | 87 | 8 |
| MANNFORD TRANSMISSION COMPANY | 15063 | TULSA | 0 | 0 |
| MANSEL ARDELIA DActive | 20004 | FLETCHER | 1 | 1 |
| MANTEX INC | 19307 | TULSA | 79 | 7 |
| MANUEL CORPORATION | 10950 | WICHITA | 118 | 22 |
| MAPLE PROPERTIES CORP | 16872 | DALLAS | 1 | 1 |
| MAPLES OIL CO | 11716 | NOWATA | 1 | 1 |
| MAR-BAR ENTERPRISES INCActive | 8693 | CUSHING | 7 | 2 |
| MAR-DREY OIL COMPANIES INC | 16177 | BRADY | 0 | 0 |
| MAR-TAY DRILLING CO | 10382 | DRUMRIGHT | 2 | 1 |
| MARATHON OIL COMPANY LLCActive | 1363 | Houston | 374 | 35 |
| MARBET LLCActive | 20333 | EDMOND | 103 | 12 |
| MARCH ENERGY COMPANY | 15235 | CUSHING | 2 | 1 |
| MARCO OIL COMPANY | 19389 | BARTLESVILLE | 2 | 1 |
| MARCO OIL COMPANY LLCActive | 21239 | BARTLESVILLE | 84 | 1 |
| MARCUS EXPLORATION INC | 8159 | PIEDMONT | 17 | 1 |
| MARDALE DRILLING CO | 1364 | OKLAHOMA CITY | 3 | 1 |
| MARDALE DRILLING COMPANY | 11024 | OKLAHOMA CITY | 10 | 1 |
| MARGINAL WELL PRODUCERS LLC | 22276 | SHERMAN | 1 | 1 |
| MARIAH EXPLORATION LLC | 21830 | PAWHUSKA | 0 | 0 |
| MARILYN SUE COGBURNActive | 19204 | Hardesty | 2 | 2 |
| MARION ENERGY INC | 21924 | HOUSTON | 21 | 2 |
| MARJO OIL COMPANY | 12461 | TULSA | 21 | 8 |