ORYX ENERGY COMPANY | 3,890,368 | 5,150,487 |
CHESAPEAKE OPERATING, INC. | 2,949,712 | 0 |
SAGE ENERGY COMPANY | 1,923,891 | 18,169 |
CML EXPLORATION, LLC | 1,310,613 | 89,804 |
TEXAS AMERICAN RESOURCES COMPANY | 895,117 | 3,711,396 |
MCDAY ENERGY CORP. | 606,582 | 1,247,632 |
HUGHES, DAN A. COMPANY, L.P. | 591,431 | 0 |
HUGHES, DAN A. COMPANY | 552,216 | 0 |
COLUMBIA GAS DEVELOPMENT CORP. | 513,305 | 0 |
EXCO OPERATING COMPANY, LP | 453,091 | 0 |
JENNINGS EXPLORATION COMPANY | 442,042 | 526,828 |
HAWTHORN ENERGY PARTNERS, LLC | 426,200 | 0 |
SANCHEZ OIL & GAS CORPORATION | 396,751 | 62,733 |
PATTERSON PETROLEUM LP | 310,669 | 0 |
WCS OIL AND GAS CORPORATION | 291,889 | 0 |
BERENERGY CORPORATION | 291,714 | 0 |
KERR-MCGEE OIL & GAS ONSHORE LLC | 250,872 | 1,680,598 |
WINN EXPLORATION CO., INC. | 229,335 | 963,565 |
CITATION OIL & GAS CORP. | 221,006 | 0 |
RIO-TEX, INC. | 202,802 | 151,919 |
UNION PACIFIC RESOURCES COMPANY | 202,443 | 0 |
PETROHAWK OPERATING COMPANY | 180,470 | 0 |
DOUBLE J OPERATING COMPANY, INC. | 178,404 | 0 |
BUFFCO PRODUCTION INC. | 158,567 | 0 |
CRIMSON EXPLORATION OPER., INC. | 155,076 | 589,119 |
BRIDGER OIL INC. | 141,328 | 0 |
STRAND ENERGY, L.C. | 130,761 | 0 |
CENIZA PETROLEUM, INC. | 106,213 | 0 |
SPUR OPERATING CO. | 104,860 | 231,574 |
PATTERSON PETROLEUM LLC | 101,766 | 0 |
GLG ENERGY, L.P. | 100,547 | 0 |
BLUESTAR ENERGY, INC. | 93,555 | 0 |
JOINT RESOURCES COMPANY | 70,068 | 0 |
OMNI OPERATING COMPANY(A) | 63,811 | 0 |
KOVEN PRODUCTION CO. | 62,397 | 298,401 |
NEWFIELD EXPLORATION COMPANY | 57,077 | 0 |
SKIDMORE ENERGY,INC. | 53,188 | 789,301 |
KERR-MCGEE CORPORATION | 50,866 | 342,369 |
ROMA OIL AND GAS, INC. | 49,199 | 0 |
WCS OIL & GAS CORPORATION | 40,774 | 0 |
R.B.S. OIL & GAS INC. | 39,755 | 0 |
OAKLAND PETROLEUM OPER CO., INC. | 38,198 | 215,380 |
RILEY EXPLORATION, LLC | 36,588 | 0 |
WITHERSPOON OIL COMPANY | 34,731 | 0 |
PICOSA, L.L.C. | 34,567 | 0 |
HEART LAND PETROLEUM CORPORATION | 34,492 | 0 |
REGAL PETROLEUM SERVICES | 33,438 | 18,127 |
ALAMO OPERATING COMPANY, L. C. | 33,370 | 0 |
CHRISTICO PETROLEUM COMPANY | 33,066 | 0 |
O.G.P. OPERATING, INC. | 27,476 | 0 |
RETAMA OIL CORPORATION | 24,647 | 0 |
MARIAH ENERGY CORP. | 23,782 | 0 |
MATADOR PRODUCTION COMPANY | 23,080 | 40,789 |
PIONEER EXPLORATION COMPANY | 22,412 | 0 |
BARNETT ENERGY, INC. | 20,837 | 0 |
TXCO RESOURCES INC. | 20,356 | 0 |
PIONEER EXPLORATION, LTD. | 19,424 | 0 |
MCENA INC. | 19,111 | 0 |
REXCOM, INC. | 18,412 | 0 |
VIRTEX PETROLEUM COMPANY, INC. | 18,288 | 0 |
JENEX PETROLEUM CORPORATION | 17,737 | 0 |
MCDANIEL COMPANY, INC., THE | 17,666 | 0 |
SETEX OIL AND GAS COMPANY | 17,408 | 1,748,676 |
HARVEY BROTHERS OIL & GAS | 17,099 | 0 |
FAMCOR OIL, INC. | 16,174 | 0 |
WILLIAMSON OPERATING CO. | 15,399 | 148,258 |
CIVRON PETROLEUM RES., LLC | 14,689 | 0 |
REGENCY ENERGY, INC. | 14,573 | 0 |
WILLMON OIL COMPANY | 13,849 | 0 |
BOTASCH OPERATING, LLC | 13,412 | 0 |
DAWSEY OPERATING COMPANY | 12,863 | 48,707 |
PHOENIX OPERATING COMPANY OF TX. | 12,601 | 0 |
FINLEY RESOURCES, INC. | 12,382 | 0 |
HESS CORPORATION | 11,531 | 0 |
MAJESTIC PETROLEUM CORPORATION | 11,412 | 0 |
WILMOTH INTERESTS, INC. | 11,212 | 0 |
V/J OIL COMPANY | 11,136 | 0 |
THALMANN, DAVID VAC SERVICE INC | 10,175 | 0 |
C AND S OIL & GAS | 10,118 | 0 |
SOUTHWEST TEXAS ENERGY, CORP. | 9,640 | 0 |
CIBOLO ENERGY OPERATING, INC. | 8,891 | 0 |
J M FOUR PRODUCTION | 8,043 | 0 |
QUATRO OIL AND GAS, INC. | 7,853 | 3,602,801 |
ESPADA OPERATING LLC | 7,256 | 0 |
WILBANKS ENERGY CORPORATION | 7,044 | 0 |
NASSER OIL & GAS, INC. | 7,040 | 0 |
PACIFIC OPERATORS, INC. | 6,564 | 304,064 |
EXPLORATION COMPANY, THE | 6,084 | 0 |
DYNAMIC PRODUCTION, INC. | 6,040 | 20,281 |
MERZBACHER, GEORGE F. JR. | 5,957 | 0 |
WILLIAMS KOLB & LINDENBORN, INC. | 5,685 | 0 |
GENESIS GAS & OIL LLC | 5,611 | 21,882 |
TEXOKAN OPERATING, INC. | 5,599 | 0 |
BAY ROCK OPERATING COMPANY | 5,586 | 0 |
RIO GRAND EXPLORATION, LLC | 5,393 | 0 |
FORBES, C. C. COMPANY | 5,225 | 0 |
MEXTEX OPERATING COMPANY | 5,216 | 0 |
CAG PETROLEUM CORP. | 4,973 | 0 |
CENTAUR EXPLORATION LLC | 4,745 | 26 |
CRIMSON ENERGY PARTNERS, L.P. | 4,737 | 0 |
VIRTEX OPERATING COMPANY, INC. | 4,626 | 0 |
SOUTHWEST OIL & LAND, INC. | 4,360 | 0 |
PEARL, BILL H. PRODUCTIONS, INC. | 4,337 | 0 |
RED BYRD OIL, INC. | 4,318 | 0 |
AYERS OIL CO. | 3,898 | 0 |
LUCAS ENERGY, INC. | 3,786 | 0 |
STP PRODUCTION, LLC | 3,750 | 0 |
KINLAW OIL CORPORATION | 3,589 | 0 |
BOTASCH OPERATING | 3,568 | 0 |
HENLEY, GARLAND | 3,466 | 0 |
BHP BILLITON PET(TXLA OP) CO | 3,414 | 0 |
VIOLA PROD., INC. | 3,403 | 0 |
NICHOLS,EDWIN S EXPLORATIONS INC | 3,274 | 162,225 |
BOLLINGER DRILLING CO. | 3,232 | 0 |
BRYMER, JACK CONTR. SERV. | 3,014 | 0 |
STONEGATE OPERATORS, INC. | 2,980 | 0 |
BOGEY OIL & GAS | 2,879 | 74,471 |
ATLAS OPERATING LLC | 2,870 | 0 |
SHELL WESTERN E&P | 2,597 | 0 |
GATES OPERATING COMPANY | 2,451 | 0 |
CUATRO PETRO CORP. | 2,186 | 1,347 |
LIVE OAK GAS COMPANY | 2,151 | 0 |
FLEUR-DAVID | 2,124 | 0 |
PIONEER EXPLORATION, LLC | 1,914 | 0 |
KILLAM OIL COMPANY | 1,854 | 10,849 |
GENESIS ST OPERATING LLC | 1,796 | 3,883 |
STRATCO OPERATING CO., INC. | 1,741 | 8,949 |
ZAVALA INDEPENDENT GAS, INC. | 1,712 | 156,682 |
GOLDEN CHILD, INC. | 1,706 | 0 |
TIZA, INC. | 1,517 | 0 |
CRIMSON EXPLORATION INC. | 1,448 | 82,807 |
AMBRIT ENERGY CORP. | 1,408 | 0 |
JAB OPERATING, INC. | 1,403 | 0 |
QUAIL WELL SERVICE, INC. | 1,362 | 0 |
REDROCK EXPLORATION, INC | 1,320 | 0 |
SQUARE ONE CORPORATION | 1,314 | 0 |
BROWN, JOHN OIL CO. | 1,309 | 0 |
AMERICAN AQUILA | 1,209 | 3,263 |
SABINAL RESOURCES, INC. | 1,203 | 9,637 |
WALLIS ENERGY, INC. | 1,101 | 0 |
OKLA. MAGIC CIRCLE ENERGY CORP. | 1,062 | 0 |
EAGLE OIL & GAS CO. | 1,007 | 0 |
1776 ENERGY OPERATORS, LLC | 971 | 0 |
MIDWESTERN EXPLORATION CO. | 880 | 64,969 |
BRYMER, JACK CONTR. SERV., INC. | 854 | 0 |
COLT OPERATING CORPORATION | 776 | 0 |
EDISTO RESOURCES CORPORATION | 763 | 0 |
OVERLY OPERATING CO. | 755 | 0 |
DANTEX OIL & GAS, INC. | 744 | 0 |
GILLCO OIL SERVICE, INC. | 618 | 0 |
HAMPTON ENERGY CORPORATION | 574 | 0 |
FIRST ROCK, INC. | 538 | 0 |
RATTLER OIL & GAS CORP. | 499 | 0 |
BRYMER CONTRACTING INCORPORATED | 485 | 0 |
SAND DOVE PETROLEUM CORPORATION | 478 | 0 |
KINCAID/HADDEN | 474 | 119,385 |
KILLAM OIL CO., LTD. | 456 | 48,983 |
CONTINENTAL OPERATING COMPANY | 418 | 0 |
MARTIN GAS SALES, INC. | 417 | 0 |
HEADLINE RESOURCES, INC. | 351 | 0 |
R.C.I. ENERGY | 319 | 0 |
CORNERSTONE E & P COMPANY, LP | 296 | 0 |
S & L OIL FIELD SERVICES | 294 | 0 |
STRATA STAR PETROLEUM CORP. | 266 | 0 |
PACIFIC OPERATORS OF TEXAS, INC. | 261 | 13,032 |
TOUCHSTONE RESOURCES USA, INC. | 261 | 0 |
BP PROD. CORP. | 242 | 0 |
XOG OPERATING LLC | 163 | 0 |
IPACT | 143 | 9,584 |
ROLLANOIL PETROLEUM USA | 140 | 0 |
SEAGULL OPERATING CO., INC. | 132 | 0 |
LYNCH, W. W. | 127 | 199,757 |
PETRONOMICS PETROLEUM, INC. | 123 | 0 |
LMP PETROLEUM, INC. | 106 | 0 |
DKW ENERGY, INC. | 102 | 0 |
SEASON OIL & GAS | 96 | 0 |
MISSION RIVER SYSTEMS, INC. | 96 | 0 |
GRUY PETROLEUM MANAGEMENT CO. | 75 | 0 |
PRONGHORN OIL & GAS CO. | 63 | 0 |
MORTIMER EXPLORATION COMPANY | 61 | 12,927 |
GLENCO OIL & GAS COMPANY | 56 | 0 |
MILLENNIUM PETRO-PHYSICS, INC. | 44 | 0 |
THOMPSON, HARRY F., JR | 23 | 0 |
ROLLANOIL USA | 18 | 0 |
ROLLANOIL CORPORATION | 6 | 0 |
MOERBE, STANLEY | 4 | 0 |
HOPI, INC. | 0 | 0 |
WATERS ENG. & OPERATING, INC. | 0 | 0 |
CAMINO AGAVE, INC. | 0 | 0 |
MOLE OPERATING CO., INC. | 0 | 0 |
REMUDA OPERATING COMPANY | 0 | 404,508 |
LONESOME DOVE OIL & GAS | 0 | 0 |
FRIO SWD, INC. | 0 | 0 |
UVALDE ENERGY CO. | 0 | 0 |
BOBCAT OPERATING | 0 | 0 |
BAXTER, KELLY H. | 0 | 0 |
CORE ENERGY CORPORATION | 0 | 0 |
WESTERN GULF OIL & GAS INC. | 0 | 1,208,887 |
VERNOR, MILBURN | 0 | 0 |
DORADO OIL COMPANY | 0 | 0 |
CENTEX DEVELOPMENT | 0 | 17,264 |
HOLIFIELD OIL COMPANY | 0 | 0 |
BEACHTEX OIL COMPANY, LLC | 0 | 0 |
CAVALIER OIL & GAS, INC. | 0 | 360,928 |
ARROWHEAD ENTERPRISES, INC. | 0 | 102,313 |
GEOLAND, INC. | 0 | 0 |
JOHNSON, B. K. | 0 | 0 |
TOTAL PRODUCTION SERVICES, INC. | 0 | 0 |
TEXAS SOUTHERN RESOURCES, INC. | 0 | 0 |
B-G OPERATING INC. | 0 | 0 |
GRAHAM RESOURCES INT'L, INC. | 0 | 0 |
LYNCH, WILBUR WALDO, ESTATE OF | 0 | 23,196 |
G/O INTERNATIONAL, INC. | 0 | 0 |
GREAT WESTERN DRILLING COMPANY | 0 | 0 |
QUASAR EXPLORATION & ENERGY INC. | 0 | 0 |
RICOCHET ENERGY, INC. | 0 | 0 |
SPILLER OPERATING CO., INC. | 0 | 27,157 |
CORE E & P CORP. | 0 | 0 |
PATTERSON ENERGY CORPORATION | 0 | 246,256 |
SWIFT ENERGY COMPANY | 0 | 5,388,795 |
TERRA ENERGY | 0 | 0 |
SABCO OPERATING COMPANY, LLC | 0 | 0 |
BHEC CORPORATION | 0 | 0 |
PERKINS, ALTAH L. TRUST | 0 | 0 |
COLE, FRANK W ENGINEERING | 0 | 0 |
INTERCITY MANAGEMENT CORP. | 0 | 0 |
SNYDER OIL CORPORATION | 0 | 249,637 |
E-COR, INC. | 0 | 482,477 |
DOLPHIN PETROLEUM | 0 | 0 |
THERMOIL, INC. | 0 | 0 |
ROME EXPLORATION CO, INC. | 0 | 0 |
LONGHORN OIL PROPERTIES, INC. | 0 | 0 |
LEGACY EXPLORATION, INC. | 0 | 0 |
WOODHAM OIL CORPORATION | 0 | 0 |
RIO GAS GATHERING CO., INC. | 0 | 0 |
SPILLER, ROBERT S. | 0 | 590,921 |
BXP OPERATING, LLC | 0 | 1,022,716 |
GENESIS PRODUCING COMPANY | 0 | 1,692,740 |
WESTERN PRIDE RESOURCES, INC. | 0 | 91,491 |
SABCO OPERATING COMPANY | 0 | 0 |
BLANKS ENERGY CORPORATION | 0 | 0 |
KWH OIL COMPANY | 0 | 0 |
SHAWNEE OPERATING COMPANY | 0 | 0 |
ACTIVA RESOURCES, LLC | 0 | 0 |
HAWK PRODUCTION COMPANY | 0 | 0 |
WHITENER OIL & GAS CO. INC. | 0 | 606 |
MOMENTUM PRODUCTION CORP. | 0 | 3,980 |
PNG OPERATING COMPANY | 0 | 237,784 |
TEXACO E & P INC. | 0 | 28,457 |
R. H. ENERGY CO., INC. | 0 | 0 |
BROWN, C. DOUGLAS, LLC | 0 | 2,213,296 |
GILLEY, SAM D. | 0 | 0 |
AMERICAN EXPLORATION COMPANY | 0 | 0 |
THREE ARROW OPERATING COMPANY | 0 | 92,412 |
WAINOCO OIL & GAS COMPANY | 0 | 0 |
SCHAARON INTERNATIONAL ENERGY | 0 | 0 |
BRAZOS PETROLEUM, INC. | 0 | 0 |
CARRIZO EXPLORATION, INC. | 0 | 130,944 |
ZAVALA ENERGY, INC. | 0 | 0 |
EL INDIO OPERATING CO., INC. | 0 | 0 |
MAGNUM ENGINEERING COMPANY | 0 | 58,492 |
RUTLEDGE, JACK | 0 | 0 |
TIDAL PETROLEUM, INC. | 0 | 231,492 |
SKYLARK OIL COMPANY (SA) | 0 | 88,292 |
MINUTEMEN CONSULTANTS INC. | 0 | 0 |
TECH RESOURCES, INC. | 0 | 315,800 |
LAVANCO ENERGY, LTD. | 0 | 4,333 |
PAVCO OIL & GAS, INC. | 0 | 0 |
OFFSPRING WELL SALVAGE | 0 | 0 |
DIVERSIFIED O&G PROD. CO., INC. | 0 | 0 |
LYNCH, W. WALDO | 0 | 159,628 |
LITTLE OIL & GAS, INC. | 0 | 0 |
SOJOURNER DRILLING CORPORATION | 0 | 811,282 |
J-W OPERATING CO. | 0 | 1,684,026 |
WOLF PRODUCTION, INC. | 0 | 0 |
FORTUNE OPERATING COMPANY | 0 | 0 |
LAVANCO ENERGY, INC. | 0 | 29,198 |
WELDON CORPORATION | 0 | 0 |
AXIS ENERGY CORPORATION | 0 | 0 |
EXXCEL OPERATING COMPANY | 0 | 173 |
OXSON CO. | 0 | 74,077 |
ENRE CORP. | 0 | 0 |
MAGNUM PRODUCING & OPERATING CO. | 0 | 6,156 |
BLUE STAR OPERATING COMPANY | 0 | 0 |
PAMETA OIL COMPANY | 0 | 0 |
CATARINA PETROLEUM L. C. | 0 | 864,018 |
U.S.A. PLUGGING COMPANY | 0 | 0 |
PROPERTY DEVELOPMENT GROUP, INC. | 0 | 299,261 |
TX ENERGY SERVICES, LLC | 0 | 0 |
CORNERSTONE OIL & GAS, INC. | 0 | 0 |
CHI OPERATING, INC. | 0 | 26 |
SJTC HOLDINGS, INC. | 0 | 0 |
HOUSTON OIL FIELDS CO. | 0 | 0 |
ZSL INC. | 0 | 0 |
BOX, WARD L. | 0 | 0 |
MEDINA GAS COMPANY | 0 | 0 |
ARROW PETROLEUM COMPANY | 0 | 0 |
TEXAS SPC CO | 0 | 32,240 |
BLACKBRUSH O & G, LLC | 0 | 0 |
TMH OIL COMPANY | 0 | 0 |
WILLIAMSON DRILLING CO., INC. | 0 | 0 |
PLANO PETROLEUM CORPORATION | 0 | 96,137 |
OATMAN, W. W. | 0 | 0 |
TRAVERS RESOURCES, INC. | 0 | 341,620 |
JENNINGS, C. A., INC. | 0 | 0 |
OMEGA MINERALS, INC. | 0 | 0 |
PRIME OPERATING COMPANY | 0 | 551,816 |
TIZA ENERGY, INC. | 0 | 0 |
COMANCHE CRUDE OIL CO. | 0 | 0 |