PETRO-GUARD COMPANY, INC. | 867,522 | 262,484 |
CUMMINS & WALKER OIL CO., INC. | 764,559 | 0 |
AROC (TEXAS) INC. | 670,285 | 675,761 |
PETRO-GUARD PRODUCTION,L.L.C. | 599,592 | 1,137,180 |
APACHE CORPORATION | 493,796 | 407,543 |
CORUM PRODUCTION COMPANY | 371,775 | 5,432,669 |
NEUMIN PRODUCTION COMPANY | 351,923 | 62,483,383 |
MCGOWAN WORKING PARTNERS | 301,959 | 183,061 |
MCGOWAN WORKING PARTNERS, INC. | 300,506 | 89,188 |
AMERICAN COMETRA, INC. | 295,209 | 1,465,352 |
ATASCA RESOURCES, INC. | 257,074 | 164,233 |
UNIT PETROLEUM COMPANY | 187,762 | 458,859 |
XOG OPERATING LLC | 187,699 | 426,299 |
BARNHART CO. | 185,055 | 0 |
ERG RESOURCES, L.L.C. | 157,961 | 56,059 |
QUINTANA PET. CORP. | 135,841 | 2,210,228 |
TEXAS PETROLEUM INVESTMENT CO. | 127,117 | 2,543,348 |
KEBO OIL & GAS, INC. | 96,809 | 876,308 |
C & E OPERATING, INC. | 93,072 | 11,059,299 |
TRI-UNION DEVELOPMENT CORP. | 88,994 | 19,978 |
LAMAR OIL & GAS, INC. | 81,421 | 1,029,587 |
XERIC OIL & GAS CORPORATION | 76,677 | 173,183 |
LINC GULF COAST PETROLEUM, INC. | 74,450 | 21,242 |
CIMAREX ENERGY CO. OF COLORADO | 73,759 | 4,385,574 |
ENERGY DEVELOPMENT CORP. | 70,649 | 266,011 |
PRIZE OPERATING COMPANY | 66,620 | 734,151 |
GRUY PETROLEUM MANAGEMENT CO. | 64,983 | 1,084,259 |
TE-RAY RESOURCES, INC. | 64,954 | 18,555 |
DEWBRE PETROLEUM CORPORATION | 48,642 | 88,729 |
CARTER E&P, LLC | 42,306 | 169,836 |
PIONEER RESOURCES PRODUCING, L.P | 38,931 | 640,506 |
PARKER & PARSLEY PRODUCING L.P. | 34,437 | 560,350 |
HOUSTON HYDROCARBONS, INC. (A) | 34,309 | 0 |
PI ENERGY, INC. | 33,216 | 1,182,059 |
MERIDIAN OIL PRODUCTION INC. | 32,997 | 4,783,094 |
EXXON CORP. | 31,152 | 8,926,191 |
RINCON PETROLEUM CORPORATION | 29,883 | 54,262 |
OSYKA PERMIAN, LLC | 27,257 | 308,476 |
FORMATION RESOURCES LLC | 26,545 | 74,049 |
CAPCO OFFSHORE OF TEXAS, INC. | 25,382 | 29,362 |
DALLAS RESOURCES, INC. | 24,506 | 515,959 |
ESENJAY PETROLEUM CORP. | 23,886 | 2,151,995 |
BURLINGTON RESOURCES OIL&GAS CO. | 22,494 | 2,243,379 |
PITCO INVESTMENTS, LTD. | 22,119 | 21,826 |
RSE, INC. | 20,544 | 0 |
BISON ENERGY PARTNERS, INC. | 18,913 | 0 |
UMC PETROLEUM CORPORATION | 16,174 | 1,290,166 |
CIMARRON ENGINEERING CORP. | 15,887 | 0 |
ALLEGRO INVESTMENTS, INC. | 15,741 | 1,730,771 |
ESENJAY EXPLORATION, INC | 15,013 | 1,798,356 |
OPEX ENERGY, LLC | 12,942 | 0 |
WHITE OAK OPERATING COMPANY LLC | 11,561 | 0 |
PHILLIPS ENERGY, INC. | 7,786 | 0 |
LOMAK PRODUCTION COMPANY | 7,074 | 5,213 |
BISON ENERGY PARTNERS, LTD. | 7,017 | 0 |
MERIDIAN OIL INC. | 6,738 | 537,521 |
FUTURE PETROLEUM COMPANY LLC | 6,339 | 8,079,005 |
SENTRY EXPLORATION, LLC | 5,874 | 0 |
KP EXPLORATION, INC. | 5,649 | 0 |
HANSON PRODUCTION COMPANY | 4,518 | 14,767 |
HUNT PETROLEUM (AEC), INC. | 4,374 | 0 |
SENTRY EXPLORATION, INC. | 4,249 | 0 |
SAN PATRICIO CORPORATION | 4,221 | 180,593 |
BURLINGTON RESOURCES O & G CO LP | 3,587 | 441,456 |
TSCHOEPE, ARTHUR J. | 2,795 | 1,082,218 |
JOVIAN PETROLEUM CORPORATION | 2,531 | 627 |
LEGADO GULF COAST, LLC | 2,422 | 37,343 |
VICTORIA OPERATING, INC. | 2,373 | 0 |
CAMERON ENGINEERING, INC | 2,141 | 443,748 |
PIONEER NATURAL RES. USA, INC. | 1,467 | 0 |
TETON PETROLEUM CORPORATION | 1,463 | 57,468 |
AMERICAN EXPLORATION COMPANY | 1,358 | 592,499 |
AURORA RESOURCES CORPORATION | 1,087 | 56,568 |
SUE-ANN OPERATING, L.C. | 1,047 | 0 |
BRIGHAM OIL & GAS, L.P. | 654 | 2,249,477 |
MAGNUM PRODUCING & OPERATING CO. | 612 | 0 |
FREDCO | 534 | 1,265,565 |
FINA OIL & CHEMICAL COMPANY | 534 | 876,198 |
SYNERGY PRODUCTION COMPANY | 507 | 1,143,866 |
GARDNER ENERGY CORPORATION | 413 | 0 |
HOUSTON EXPLORATION COMPANY, THE | 344 | 55,706 |
TAOS RESOURCES OPERATING CO LLC | 181 | 42,309 |
MILLENNIUM ENERGY, LLC | 87 | 0 |
SYNERGY OIL & GAS, INC. (A) | 42 | 1,531,851 |
CREST PETROLEUM, LLC | 23 | 489,020 |
HIGH ISLAND GAS LLC | 0 | 33,735 |
DALEN RESOURCES OIL & GAS CO. | 0 | 156,185 |
BOIS D'ARC OPERATING CORPORATION | 0 | 345 |
MERIDIAN ENERGY CORP. | 0 | 0 |
COLOMA OIL & GAS CORP. | 0 | 0 |
DAVIS OPERATING COMPANY, INC. | 0 | 42,921 |
PONTIAC OIL, INC. | 0 | 0 |
EXXON MOBIL CORPORATION | 0 | 1,973,346 |
DARCY ENERGY LLC | 0 | 0 |
BRIDGE OIL PRODUCTION CO., INC. | 0 | 48,405 |
XTO ENERGY INC. | 0 | 0 |
MAGNUM PRODUCING, LP | 0 | 0 |
STERLING EXPL. & PROD. CO., LLC | 0 | 1,947,451 |
SONORA EXPLORATION CORPORATION | 0 | 0 |
SOUTH BAY RESOURCES, L.L.C. | 0 | 0 |
BOIS D'ARC OFFSHORE LTD. | 0 | 480,962 |
SENECA RESOURCES CORPORATION | 0 | 121,232 |
FRIO ENGINEERING INC. | 0 | 91,479 |
GALVESTON BAY ENERGY, LLC | 0 | 0 |
WOOLVERINE PRODUCTION COMPANY | 0 | 0 |
TRANSTEXAS GAS CORPORATION | 0 | 0 |
SEADRIFT MANAGEMENT, L.L.C. | 0 | 0 |
GOETZ SERVICES, INC. | 0 | 0 |
BEX, INC. | 0 | 0 |
BRIDGE OIL COMPANY, L. P. | 0 | 94,576 |
VALLEY GATHERING COMPANY | 0 | 22,878 |
SOUTHWEST OIL & LAND, INC. | 0 | 253,694 |
MUSTANG OIL & GAS CORPORATION | 0 | 40,421 |
H-M RESOURCE MANAGEMENT, INC. | 0 | 153,157 |
ARBOL RESOURCES, INC. | 0 | 0 |
SCORE ENERGY COMPANY | 0 | 0 |
CORPUS CHRISTI LEASEHOLDS, INC. | 0 | 62,105 |
GENERAL ATLANTIC RESOURCES, INC. | 0 | 1,188,838 |
CHIEF OPERATING COMPANY | 0 | 0 |
NEW CENTURY EXPLORATION, INC. | 0 | 86,374 |
TRITON OIL & GAS CORP. | 0 | 0 |
HOUSTON OPERATING, INC. | 0 | 426,529 |
MAC SERVICES, INC. | 0 | 0 |
SALURIA OPERATING CO., INC. | 0 | 0 |
STANOTEX, LLC | 0 | 0 |
PENN VIRGINIA OIL & GAS CORP. | 0 | 30,189 |
ELTEX ENERGY GROUP, INC. | 0 | 47,552 |
GENESIS PRODUCING COMPANY | 0 | 0 |
VINTAGE PETROLEUM, LLC | 0 | 7,168 |
R & J ENERGY, INC. (87) | 0 | 0 |
BOSS EXPL & PROD CORPORATION | 0 | 1,079,546 |
CONTINENTAL TREND RESOURCES, INC | 0 | 346,157 |
SABCO OPERATING COMPANY, LLC | 0 | 218,918 |
WELTMAN, LOUIS H.-STONE, J. G. | 0 | 0 |
MARWELL PETROLEUM LTD PARTNRSHIP | 0 | 5,824 |
RIFE OIL PROPERTIES, INC. | 0 | 0 |
TORCH OPERATING COMPANY | 0 | 0 |
SURE FLOW OIL & GAS COMPANY | 0 | 0 |
CITY OIL WELL SERVICE COMPANY | 0 | 0 |
PRIDE ENERGY COMPANY | 0 | 1,468 |
INDEPENDENCE DRILLING CORP. | 0 | 0 |
MATAGORDA RESOURCES CO., INC. | 0 | 0 |
PARKER & PARSLEY DEVELOPMENT L.P | 0 | 19,301 |
SABCO OPERATING COMPANY | 0 | 2,861,492 |
MARQUEE CORPORATION | 0 | 228,279 |
MERIDIAN RESOURCE & EXPL LLC,THE | 0 | 312,355 |
STERLING OFFSHORE, INC. | 0 | 0 |
BKN OIL & GAS, INC. | 0 | 0 |
OCEAN ENERGY, INC. | 0 | 93,949 |
JOHNSON RESOURCES, INC. | 0 | 0 |
A.O.E. OPERATORS, INC. | 0 | 0 |
HENDRIK S HOLDING USA LTD. | 0 | 0 |
HEMCO DEVELOPMENT, LLC | 0 | 7,183 |
ALEXANDER, HERBERT R. INC. | 0 | 0 |
BOZEMAN, JOHN F. | 0 | 7,213 |
FAULCONER, VERNON E., INC. | 0 | 131,531 |
TEXAS INDEPENDENT EXPLOR., INC. | 0 | 2,176,013 |
WILSON HYDROCARBON INC. | 0 | 145,107 |
DAVIS GULF COAST, INC. | 0 | 128,403 |
DREYFUS, LOUIS NATURAL GAS CORP | 0 | 0 |
CAVALLA ENERGY EXPLORATION CO. | 0 | 15,030 |
KLOTZMAN, M. S. EXPLORATION CO. | 0 | 5,572 |
MCMORAN OIL & GAS LLC | 0 | 0 |
ALTA MESA SERVICES, LP | 0 | 238 |
PG&E RESOURCES OFFSHORE COMPANY | 0 | 340,315 |
MATAGORDA OPERATING COMPANY | 0 | 13,396 |
DEVON ENERGY PRODUCTION CO, L.P. | 0 | 0 |
HILCORP ENERGY COMPANY | 0 | 169,634 |
CET ENERGY CORPORATION | 0 | 229,802 |
UNION OIL COMPANY OF CALIFORNIA | 0 | 1,048,379 |
MAGNUM OPERATING, LLC | 0 | 0 |
API OPERATING CO. | 0 | 194 |
WORKOVER OIL WELL SERVICE CO. | 0 | 0 |
TEXAS INDEPENDENT EXPLOR LTD. | 0 | 1,130,015 |
TOWER RESOURCES, INC. | 0 | 0 |
DOMINION OKLAHOMA TEXAS E&P, INC | 0 | 0 |
SONTERRA OPERATING, INC. | 0 | 101,697 |
PETROGULF, CORPORATION | 0 | 3,305 |
AMERICAN PUMPING & TRUCKING | 0 | 63 |
VINTAGE PETROLEUM, INC. | 0 | 7,578,442 |
ENSERCH EXPLORATION, INC | 0 | 197,127 |
MAIN ENERGY, INC. | 0 | 86,471 |
PALACE OPERATING COMPANY | 0 | 0 |
TEXACO E & P INC. | 0 | 0 |
ACCIDIE EXPLORATION AND DEV.,INC | 0 | 0 |
GEORGETOWN EXPLORATION, INC. | 0 | 407,038 |
MILLER OIL CORPORATION | 0 | 0 |
COCKRELL OIL CORPORATION | 0 | 0 |
CHESAPEAKE OPERATING, INC. | 0 | 12,259,260 |
PRIME OPERATING COMPANY | 0 | 13,195,996 |
STUART, H. A. | 0 | 0 |
MCCREA, VICTOR C. JR. | 0 | 3,440 |
PETROGEN, INCORPORATED | 0 | 70,114 |
COSTILLA PETROLEUM CORPORATION | 0 | 40,156 |
RAWHIDE OPERATING, INC. | 0 | 12,781 |
FLASH GAS & OIL SOUTHWEST, INC. | 0 | 1,410,856 |
PETROGULF CORPORATION | 0 | 0 |
ALBRECHT, PHIL A., JR. | 0 | 20,279 |
CAMTERRA RESOURCES, INC. | 0 | 903,089 |
EEX CORPORATION | 0 | 12,779 |
COASTLAND OPERATIONS, LLC | 0 | 0 |
ANDERSON OIL LTD. | 0 | 1,808 |
BULA OIL AMERICA, INC. | 0 | 0 |
KARANKAWA PRODUCING CO. | 0 | 0 |
CAMOIL, INC. | 0 | 764 |
DANIEL, ANTHONY | 0 | 0 |
HUISACHE OPERATING CO. | 0 | 0 |
HAHN, OSCAR | 0 | 0 |
GEOSOUTHERN ENERGY CORPORATION | 0 | 0 |
COSTILLA ENERGY, INC. | 0 | 59,128 |
BONEY ENTERPRISES PROD. CO. | 0 | 16,340 |
GEODE ENTERPRISES, L.C. | 0 | 244,299 |
KAISER-FRANCIS OIL COMPANY | 0 | 281,942 |
RESERVE OPERATING CORP. | 0 | 647,665 |