EnSignals Texas drilling permit data you can check against the source
Draft preview. We're still finalizing how we count (details). The data itself is real, from the RRC's public records, but some numbers could shift a little once the counting rules are locked in.

Where Texas is permitting: 2011Q1

Original drilling permits by county. Hover over a county to see its numbers. Click one to compare its most active operators.

← 2010Q4 · 2011Q1 · 2011Q2 →    permit counts · change vs prior quarter

0 1–2 3–9 10–29 30–99 100+

186 counties had at least one permit approved in 2011Q1.

Table view: every county with activity (208)
County2010Q4 2011Q1Δ Top operators (2011Q1)
ANDREWS (3) 350 363 +13 SANDRIDGE EXPL. AND PROD., LLC (169) · ENERGEN RESOURCES CORPORATION (29) · WILLIAMS, CLAYTON ENERGY, INC. (27)
ECTOR (135) 141 223 +82 LEGADO PERMIAN, LLC (37) · SANDRIDGE EXPL. AND PROD., LLC (29) · CONOCOPHILLIPS COMPANY (18)
MARTIN (317) 264 211 -53 PIONEER NATURAL RES. USA, INC. (44) · ENDEAVOR ENERGY RESOURCES L.P. (26) · RELIANCE ENERGY, INC. (14)
MIDLAND (329) 140 190 +50 HENRY RESOURCES LLC (27) · PIONEER NATURAL RES. USA, INC. (23) · OXY USA WTP LP (16)
GLASSCOCK (173) 132 185 +53 APACHE CORPORATION (40) · ENERGEN RESOURCES CORPORATION (28) · LAREDO PETROLEUM, INC. (26)
TARRANT (439) 161 179 +18 CHESAPEAKE OPERATING, INC. (106) · XTO ENERGY INC. (35) · CARRIZO OIL & GAS, INC. (8)
LA SALLE (283) 57 178 +121 TALISMAN ENERGY USA INC. (91) · EL PASO E & P COMPANY, L. P. (12) · EOG RESOURCES, INC. (12)
UPTON (461) 142 173 +31 COG OPERATING LLC (48) · PIONEER NATURAL RES. USA, INC. (47) · CHEVRON U. S. A. INC. (16)
REAGAN (383) 122 127 +5 BROAD OAK ENERGY, INC. (52) · PIONEER NATURAL RES. USA, INC. (17) · ENDEAVOR ENERGY RESOURCES L.P. (16)
WARD (475) 66 117 +51 WHITING OIL AND GAS CORPORATION (38) · OXY USA INC. (15) · ANADARKO PETROLEUM CORPORATION (11)
WEBB (479) 93 112 +19 ROSETTA RESOURCES OPERATING LP (28) · SM ENERGY COMPANY (21) · LEWIS PETRO PROPERTIES, INC. (17)
DIMMIT (127) 76 98 +22 ANADARKO E&P COMPANY LP (39) · CHESAPEAKE OPERATING, INC. (29) · NEWFIELD EXPLORATION COMPANY (9)
KARNES (255) 72 88 +16 EOG RESOURCES, INC. (23) · BURLINGTON RESOURCES O & G CO LP (19) · MURPHY EXPL. & PROD. CO. - USA (12)
GAINES (165) 59 75 +16 HESS CORPORATION (20) · PARALLEL PETROLEUM LLC (10) · SANDRIDGE EXPL. AND PROD., LLC (10)
HOWARD (227) 65 73 +8 ELEMENT PETROLEUM OPERATING, LLC (14) · CROWNQUEST OPERATING, LLC (12) · CONOCOPHILLIPS COMPANY (10)
MONTAGUE (337) 93 72 -21 EOG RESOURCES, INC. (52) · PIONEER NATURAL RES. USA, INC. (8) · BRADEN EXPLORATION, LLC (4)
JOHNSON (251) 79 69 -10 XTO ENERGY INC. (26) · DEVON ENERGY PRODUCTION CO, L.P. (25) · CHESAPEAKE OPERATING, INC. (16)
REEVES (389) 44 68 +24 THOMPSON, J. CLEO (23) · ENERGEN RESOURCES CORPORATION (9) · EAGLE OIL & GAS CO. (7)
WHEELER (483) 58 64 +6 NEWFIELD EXPL. MID-CON. INC (12) · DEVON ENERGY PRODUCTION CO, L.P. (8) · FOREST OIL CORPORATION (8)
IRION (235) 50 63 +13 EXCO RESOURCES, INC. (18) · FIML NATURAL RESOURCES, LLC (15) · THREE RIVERS OPERATING CO LLC (13)
CRANE (103) 24 59 +35 CHEVRON U. S. A. INC. (17) · DEVON ENERGY PRODUCTION CO, L.P. (11) · APACHE CORPORATION (10)
COOKE (97) 49 56 +7 EOG RESOURCES, INC. (43) · REED PRODUCTION, INC. (4) · CHAPARRAL ENERGY, L.L.C. (3)
GONZALES (177) 33 55 +22 EOG RESOURCES, INC. (23) · FOREST OIL CORPORATION (20) · PENN VIRGINIA OIL & GAS, L.P. (11)
MILAM (331) 12 55 +43 OMNI OIL & GAS, INC. (41) · C-D OIL COMPANY, INC. (8) · SLAWSON EXPLORATION COMPANY, INC (3)
WICHITA (485) 34 52 +18 WG OPERATING, INC. (13) · BTO VENTURE, INC. (10) · ACADIA OIL, LLC (3)
WISE (497) 46 50 +4 DEVON ENERGY PRODUCTION CO, L.P. (25) · BURLINGTON RESOURCES O & G CO LP (7) · PIONEER NATURAL RES. USA, INC. (5)
MITCHELL (335) 57 49 -8 ENERGEN RESOURCES CORPORATION (39) · CEDAR BEND OIL COMPANY (4) · MERIT ENERGY COMPANY (4)
SCURRY (415) 22 49 +27 KINDER MORGAN PRODUCTION CO LLC (24) · OCCIDENTAL PERMIAN LTD. (8) · PARALLEL PETROLEUM LLC (7)
ARCHER (9) 39 45 +6 B M OIL COMPANY (6) · DRY FORK PRODUCTION CO., LLC (4) · HAYS & CROKER PARTNERSHIP (4)
HEMPHILL (211) 36 44 +8 DEVON ENERGY PRODUCTION CO, L.P. (8) · FOREST OIL CORPORATION (7) · CIMAREX ENERGY CO. (4)
MCMULLEN (311) 181 44 -137 SWIFT ENERGY OPERATING, LLC (11) · CHESAPEAKE OPERATING, INC. (9) · PETROHAWK OPERATING COMPANY (5)
PANOLA (365) 42 43 +1 DEVON ENERGY PRODUCTION CO, L.P. (15) · ANADARKO E&P COMPANY LP (6) · VALENCE OPERATING COMPANY (5)
PECOS (371) 45 42 -3 KINDER MORGAN PRODUCTION CO LLC (18) · WHITING OIL AND GAS CORPORATION (9) · INCLINE ENERGY (5)
FORT BEND (157) 23 41 +18 MAVERICK PROD. CO., INC. (31) · JETTA OPERATING COMPANY, INC. (7) · DENBURY ONSHORE, LLC (1)
LIPSCOMB (295) 21 41 +20 JONES ENERGY, LTD. (13) · MEWBOURNE OIL COMPANY (8) · CHESAPEAKE OPERATING, INC. (4)
REFUGIO (391) 44 41 -3 HILCORP ENERGY COMPANY (29) · T - C OIL COMPANY (6) · ACOCK/ANAQUA OPERATING CO., LP (2)
SHACKELFORD (417) 26 38 +12 STASNEY, H. R. & SONS, LTD. (20) · ABERNATHY AUTO, INC. (4) · BLUFF CREEK PETROLEUM, LLC (3)
DE WITT (123) 23 37 +14 PIONEER NATURAL RES. USA, INC. (15) · PETROHAWK OPERATING COMPANY (10) · BURLINGTON RESOURCES O & G CO LP (4)
CROCKETT (105) 37 35 -2 APPROACH OPERATING LLC (22) · EOG RESOURCES, INC. (4) · EL PASO E & P COMPANY, L. P. (2)
MEDINA (325) 15 32 +17 RESACA RESOURCES, L.L.C. (10) · LANDMEN OF TEXAS, INC. (6) · TEXAS SECONDARY OIL CORPORATION (5)
SAN AUGUSTINE (405) 17 32 +15 ENCANA OIL & GAS(USA) INC. (7) · EXCO OPERATING COMPANY, LP (7) · SM ENERGY COMPANY (6)
OCHILTREE (357) 25 30 +5 HOLMES EXPLORATION, LLC (6) · EOG RESOURCES, INC. (5) · MEWBOURNE OIL COMPANY (5)
STEPHENS (429) 23 30 +7 DELTA OIL & GAS LTD. (8) · LAYLINE PETROLEUM I, LLC (7) · PETEX (7)
NACOGDOCHES (347) 22 29 +7 EOG RESOURCES, INC. (8) · SAMSON LONE STAR, LLC (6) · EXCO OPERATING COMPANY, LP (5)
NOLAN (353) 15 29 +14 PLANTATION OPERATING, LLC (15) · CHOLLA PETROLEUM, INC. (4) · CEDAR OIL COMPANY (2)
ROBERTS (393) 25 29 +4 EXXCEL PRODUCTION COMPANY (9) · RANGE PRODUCTION COMPANY (4) · UNIT PETROLEUM COMPANY (4)
CULBERSON (109) 7 28 +21 FINLEY RESOURCES, INC. (8) · MANHATTAN PETROLEUM, INC. (7) · CIMAREX ENERGY CO. (4)
HARRISON (203) 24 28 +4 NFR ENERGY, LLC (6) · BP AMERICA PRODUCTION COMPANY (5) · PRENWELL, LLC (5)
SCHLEICHER (413) 23 28 +5 HIGHMOUNT EXPL & PROD TEXAS LLC (18) · SAMSON LONE STAR, LLC (6) · PAINT ROCK OPERATING, LLC (1)
FRIO (163) 17 26 +9 CABOT OIL & GAS CORPORATION (5) · TEXAS AMERICAN RESOURCES COMPANY (4) · VIRTEX OPERATING COMPANY, INC. (3)
JACK (237) 30 26 -4 DTE GAS RESOURCES, LLC (11) · LYNN CREEK OIL COMPANY (3) · BEISCH, RUSTY (2)
FREESTONE (161) 44 25 -19 XTO ENERGY INC. (20) · APACHE CORPORATION (2) · DEVON ENERGY PRODUCTION CO, L.P. (1)
LIVE OAK (297) 39 25 -14 BURLINGTON RESOURCES O & G CO LP (15) · CHOICE EXPLORATION, INC. (2) · CINCO NATURAL RESOURCES CORP. (1)
LOVING (301) 16 25 +9 ATLANTIC OPERATING, INC. (7) · CHESAPEAKE OPERATING, INC. (5) · RKI EXPLORATION & PRODUCTION LLC (3)
CROSBY (107) 1 24 +23 JUNO OPERATING COMPANY, LLC (23) · SHERIDAN PRODUCTION COMPANY, LLC (1)
ROBERTSON (395) 13 24 +11 XTO ENERGY INC. (17) · O'BENCO, INC. (3) · DEVON ENERGY PRODUCTION CO, L.P. (1)
DAWSON (115) 16 23 +7 PIONEER NATURAL RES. USA, INC. (5) · BIG STAR OIL & GAS, LLC (4) · WTG EXPLORATION (3)
WHARTON (481) 17 23 +6 APACHE CORPORATION (4) · CAZA OPERATING, LLC (2) · MILAGRO EXPLORATION, LLC (2)
HARDIN (199) 15 22 +7 ADDISON OIL, LLC (3) · C.F.O., INC. (3) · CORONA EXPLORATION, INC. (3)
WILSON (493) 10 20 +10 EOG RESOURCES, INC. (10) · FOREST OIL CORPORATION (3) · HUNT OIL COMPANY (2)
YOUNG (503) 32 20 -12 LINDSAY, DICK (5) · BAY ROCK OPERATING COMPANY (2) · BETTIS, BOYLE & STOVALL (1)
DENTON (121) 21 19 -2 ENCANA OIL & GAS(USA) INC. (4) · TITAN OPERATING, LLC (4) · DEVON ENERGY PRODUCTION CO, L.P. (3)
LIBERTY (291) 11 19 +8 QUAIL CREEK OIL CORPORATION (4) · CRIMSON EXPLORATION OPER., INC. (3) · GORDY OIL COMPANY (2)
RUSK (401) 8 19 +11 ZONE ENERGY, LLC (11) · FOREST OIL CORPORATION (2) · GOODRICH PETROLEUM COMPANY (2)
BRAZORIA (39) 9 18 +9 DENBURY ONSHORE, LLC (11) · ELLIOTT OIL & GAS OPERATING CO. (2) · CENTURY EXPLORATION HOUSTON, INC (1)
CALDWELL (55) 8 18 +10 NORTH SOUTH OIL, LLC (12) · BENCHMARK TEXAS PETROLEUM, LLC. (3) · LEFT BEHIND RECOVERY, LLC (2)
LEON (289) 21 18 -3 XTO ENERGY INC. (4) · VALENCE OPERATING COMPANY (3) · BRG LONE STAR LTD. (2)
COLEMAN (83) 22 17 -5 WINDOW OPERATING CO., THE (5) · PREMIER ROYALTIES, L.L.C. (3) · ARNOT, W. G., JR. (2)
JONES (253) 26 17 -9 COUCH OIL & GAS, INC. (5) · CO ENERGY (2) · TAHOE EXPLORATION INC. (2)
LAVACA (285) 16 17 +1 ZAZA ENERGY, LLC (3) · SUNCOAST TECHNICAL SERVICES INC (2) · ESENJAY OPERATING, INC. (1)
ATASCOSA (13) 12 16 +4 HILCORP ENERGY COMPANY (5) · EL PASO E & P COMPANY, L. P. (2) · EOG RESOURCES, INC. (2)
DUVAL (131) 7 16 +9 GASPER RICE RESOURCES, LTD. (2) · RONDE OPERATING, LLC (2) · BLACKBIRD OIL & GAS, LLC. (1)
FISHER (151) 9 16 +7 DOUBLE M PETROPROPERTIES, INC. (6) · TERRELL OIL & GAS PRODUCTION CO. (4) · CROWN EQUIPMENT CO. (2)
PALO PINTO (363) 13 16 +3 EOG RESOURCES, INC. (4) · GARDNER PRODUCTION, LLC (2) · UPHAM OIL & GAS COMPANY (2)
PARKER (367) 23 16 -7 ENERVEST OPERATING, L.L.C. (9) · ENCANA OIL & GAS(USA) INC. (4) · DEVON ENERGY PRODUCTION CO, L.P. (1)
SAN PATRICIO (409) 5 16 +11 ABRAXAS PETROLEUM CORPORATION (6) · MAGNUM PRODUCING, LP (3) · CABOT OIL & GAS CORPORATION (1)
SHELBY (419) 28 16 -12 XTO ENERGY INC. (8) · NEWFIELD EXPLORATION COMPANY (3) · BRG LONE STAR LTD. (1)
STONEWALL (433) 28 16 -12 KINDER MORGAN PRODUCTION CO LLC (6) · PLANTATION OPERATING, LLC (5) · BENTLEY OIL AND GAS COMPANY (1)
HASKELL (207) 13 15 +2 KINDER MORGAN PRODUCTION CO LLC (4) · S.B. STREET OPERATING, INC. (4) · L.C.S. PRODUCTION COMPANY (2)
NUECES (355) 21 15 -6 APACHE CORPORATION (5) · EOG RESOURCES, INC. (2) · ENTERPRISE PRODUCTS OPERATINGLLC (2)
GARZA (169) 5 14 +9 ROCKER A OPERATING COMPANY (4) · WMS OIL COMPANY (2) · MCCLURE OIL COMPANY, INC. (1)
MAVERICK (323) 2 14 +12 NEWFIELD EXPLORATION COMPANY (7) · ANADARKO E&P COMPANY LP (2) · CONOCOPHILLIPS COMPANY (2)
RUNNELS (399) 10 14 +4 GREAT TEXAS CRUDE INC. (4) · L.C.S. PRODUCTION COMPANY (3) · GAEDEKE OIL & GAS OPERATING, LLC (2)
STARR (427) 14 14 +0 FOREST OIL CORPORATION (3) · KERR-MCGEE OIL & GAS ONSHORE LP (2) · LPES, INC. (2)
VICTORIA (469) 10 14 +4 SUE-ANN OPERATING, L.C. (4) · ACOCK/ANAQUA OPERATING CO., LP (2) · AMERICO ENERGY RESOURCES, LLC (2)
CHAMBERS (71) 20 13 -7 DENBURY ONSHORE, LLC (7) · ERG RESOURCES, L.L.C. (5) · DAVIS PETROLEUM CORP. (1)
MENARD (327) 14 13 -1 PAINT ROCK OPERATING, LLC (8) · SPIRIT ENERGY L.L.C. (2) · BENSON & SCHOEN OIL CO., INC. (1)
NEWTON (351) 7 13 +6 ANADARKO E&P COMPANY LP (11) · NADSOILCO LLC (1) · PRIME OPERATING COMPANY (1)
ZAVALA (507) 12 13 +1 CML EXPLORATION, LLC (2) · CHESAPEAKE OPERATING, INC. (2) · PETROHAWK OPERATING COMPANY (2)
BROWN (49) 17 12 -5 ZIEGLER-PERU, INC. (4) · XTREME OPERATING COMPANY LLC (3) · CONNAWAY OIL & GAS CO. (1)
COKE (81) 5 12 +7 L.C.S. PRODUCTION COMPANY (5) · LANE OPERATING COMPANY (2) · CHOLLA PETROLEUM, INC. (1)
JEFFERSON (245) 10 12 +2 SAMSON LONE STAR, LLC (3) · BALLARD EXPLORATION COMPANY,INC. (2) · CIMAREX ENERGY CO. (2)
BORDEN (33) 23 11 -12 BIG STAR OIL & GAS, LLC (3) · PRIMEXX OPERATING CORPORATION (3) · ESTANCIA OIL & GAS, LLC (2)
COCHRAN (79) 15 11 -4 TEMA OIL AND GAS COMPANY (6) · WALSH PETROLEUM, INC. (2) · APACHE CORPORATION (1)
EDWARDS (137) 7 11 +4 DIAMONDBACK OPERATING, LP (5) · UHC PETROLEUM CORPORATION (5) · MUSKEGON DEVELOPMENT COMPANY (1)
THROCKMORTON (447) 12 11 -1 TRIO CONSULTING & MANAGEMENT,LLC (4) · GOOPCO, INC. (2) · POWELL-MCCARROLL PARTNERSHIP (2)
BEE (25) 9 10 +1 ENCO EXPLORATION COMPANY (4) · ANDERSON OIL LTD. (1) · CHOICE EXPLORATION, INC. (1)
BRAZOS (41) 11 10 -1 BEXCO OPERATING, INC. (3) · CRIMSON ENERGY PTNRS III, L.L.C. (2) · CHAPARRAL ENERGY, L.L.C. (1)
CLAY (77) 5 10 +5 NORTHERN TERRITORY OIL-TEX,INC. (5) · ALLEN, C. L. (DOIE) (2) · CANAN OPERATING, INC. (2)
DICKENS (125) 5 10 +5 CANAN MOWREY OPERATING, LLC (3) · SCHALK OIL COMPANY, INC. (3) · CHOLLA PETROLEUM, INC. (1)
KENEDY (261) 9 10 +1 HEADINGTON OIL COMPANY LLC (5) · NEWFIELD EXPLORATION COMPANY (2) · BRUINGTON OPERATING, L.L.C. (1)
WINKLER (495) 13 10 -3 TRADITION RESOURCES LLC (3) · BOPCO, L.P. (2) · BTA OIL PRODUCERS, LLC (1)
ZAPATA (505) 8 10 +2 EOG RESOURCES, INC. (4) · CONOCOPHILLIPS COMPANY (2) · BNR OPERATING, LLC (1)
HOCKLEY (219) 32 9 -23 OCCIDENTAL PERMIAN LTD. (3) · CHI OPERATING, INC. (2) · ROCKER A OPERATING COMPANY (2)
HOUSTON (225) 3 9 +6 HOUSTON PETROLEUM COMPANY (3) · BURK ROYALTY CO., LTD. (2) · NAVIDAD RESOURCES, LLC (2)
KENT (263) 5 9 +4 L.C.S. PRODUCTION COMPANY (5) · SOJOURNER DRILLING CORPORATION (2) · CHOLLA PETROLEUM, INC. (1)
TOM GREEN (451) 3 9 +6 BANNER OPERATING, LLC (5) · GRANDFIELD CONSULTING, INC. (1) · PATTON, E. N. OIL COMPANY, INC. (1)
WILBARGER (487) 26 9 -17 ENERGY PRODUCTION CORPORATION (2) · JOHNSON & ERNST OPERATING CO. (2) · SOUTHERN EXPLORATION, INC. (2)
YOAKUM (501) 71 9 -62 OCCIDENTAL PERMIAN LTD. (4) · ASPEN OPERATING COMPANY, L.L.C. (1) · BLUE RIDGE RESOURCES, LLC (1)
BURLESON (51) 6 8 +2 WILLIAMS, CLAYTON ENERGY, INC. (4) · WCS OIL & GAS CORPORATION (2) · ANADARKO E&P COMPANY LP (1)
HIDALGO (215) 20 8 -12 EOG RESOURCES, INC. (2) · WAGNER OIL COMPANY (2) · FIDELITY EXPLOR. & PROD. CO. (1)
KLEBERG (273) 16 8 -8 EOG RESOURCES, INC. (4) · FOREST OIL CORPORATION (2) · DEWBRE PETROLEUM CORPORATION (1)
MADISON (313) 3 8 +5 BLUESTONE NATURAL RESOURCES, LLC (1) · CML EXPLORATION, LLC (1) · CHESAPEAKE OPERATING, INC. (1)
GALVESTON (167) 4 7 +3 DENBURY ONSHORE, LLC (2) · DAVIS PETROLEUM CORP. (1) · EL PASO E & P COMPANY, L. P. (1)
GUADALUPE (187) 2 7 +5 R & S OIL PRODUCTION CO. (4) · FORTUNE OPERATING COMPANY (1) · SELLERS LEASE SERVICE, INC. (1)
JACKSON (239) 9 7 -2 PHERE OPERATING INC (2) · GCER ONSHORE, LLC (1) · HILCORP ENERGY COMPANY (1)
JIM WELLS (249) 10 7 -3 EOG RESOURCES, INC. (2) · GASPER RICE RESOURCES, LTD. (1) · HARPER HEFTE, INC. (1)
KING (269) 3 7 +4 KINDER MORGAN PRODUCTION CO LLC (2) · MEDDERS OIL COMPANY, INC. (2) · CHOLLA PETROLEUM, INC. (1)
LIMESTONE (293) 14 7 -7 XTO ENERGY INC. (4) · DEVON ENERGY PRODUCTION CO, L.P. (2) · BERRY OIL COMP. (1)
STERLING (431) 7 7 +0 STELLER ENERGY & INVESTMENT CORP (2) · WILLIAMS, CLAYTON ENERGY, INC. (2) · BURLESON PETROLEUM, INC. (1)
SUTTON (435) 23 7 -16 HIGHMOUNT EXPL & PROD TEXAS LLC (7)
TYLER (457) 5 7 +2 DAVIS SOUTHERN OPERATING CO LLC (2) · ARCADIA OPERATING, LLC (1) · BBX OPERATING, L.L.C. (1)
DALLAS (113) 1 6 +5 CHESAPEAKE OPERATING, INC. (6)
EASTLAND (133) 2 6 +4 KOKOMO ENERGY, INC. (5) · WEST TEXAS ROYALTIES, INC. (1)
GOLIAD (175) 10 6 -4 BLUE WING ENERGY, INC. (1) · CHAPARRAL ENERGY, L.L.C. (1) · CONTINENTAL EXPLORATION, L.L.C. (1)
GRAYSON (181) 5 6 +1 LONGFELLOW ENERGY, LP (3) · HEP OIL GP, LLC (1) · JETTA OPERATING COMPANY, INC. (1)
GREGG (183) 1 6 +5 J-W OPERATING CO. (2) · EXCO OPERATING COMPANY, LP (1) · HARLETON OIL & GAS INC. (1)
HOOD (221) 19 6 -13 QUICKSILVER RESOURCES INC. (3) · CHESAPEAKE OPERATING, INC. (2) · ARUBA PETROLEUM, INC. (1)
JASPER (241) 2 6 +4 ENDEAVOR NATURAL GAS, LP (2) · GOLDKING ONSHORE OPERATING, LLC (2) · CENTURY EXPLORATION HOUSTON, INC (1)
LYNN (305) 3 6 +3 RAW OIL & GAS, INC. (3) · GREAT WESTERN DRILLING COMPANY (1) · SHENANDOAH PETROLEUM CORPORATION (1)
SOMERVELL (425) 0 6 +6 QUICKSILVER RESOURCES INC. (6)
TERRY (445) 4 6 +2 TRAIL MOUNTAIN, INC. (3) · CHI OPERATING, INC. (1) · GREAT WESTERN DRILLING COMPANY (1)
CALLAHAN (59) 9 5 -4 MAGNET OIL LP (1) · NOSIVAD OIL, INC. (1) · TRACKER MINERAL (1)
GRIMES (185) 3 5 +2 ALLIED OPERATING TEXAS, LLC (1) · CML EXPLORATION, LLC (1) · DEVON ENERGY PRODUCTION CO, L.P. (1)
HUTCHINSON (233) 6 5 -1 IRVIN PETROLEUM INC. (3) · BAR L PRODUCERS (1) · LINN OPERATING, INC. (1)
MCLENNAN (309) 0 5 +5 SLICK INC. (5)
MATAGORDA (321) 5 5 +0 PETRODOME OPERATING, LLC (2) · ALTA MESA SERVICES, LP (1) · EOG RESOURCES, INC. (1)
NAVARRO (349) 1 5 +4 BRIGHT HAWK OPERATING COMPANY (4) · ATMOS ENERGY CORP., MID-TEX DIV. (1)
POTTER (375) 1 5 +4 PIONEER NATURAL RES. USA, INC. (5)
TAYLOR (441) 15 5 -10 QUANTUM INVESTMENTS (2) · L.C.S. PRODUCTION COMPANY (1) · LECLAIR OPERATING CO., INC. (1)
BREWSTER (43) 0 4 +4 MLC OPERATING, LP (4)
BROOKS (47) 13 4 -9 TECPETROL OPERATING LLC (2) · EOG RESOURCES, INC. (1) · SMITH PRODUCTION INC. (1)
CARSON (65) 1 4 +3 BRAVO NATURAL GAS, LLC (2) · CAPROCK ENGINEERING, INC. (1) · LERA (1)
CHEROKEE (73) 2 4 +2 BUFFCO PRODUCTION INC. (1) · LIME ROCK RESOURCES A, L.P. (1) · SUNLAND PRODUCTION COMPANY, INC. (1)
ERATH (143) 4 4 +0 CUMMING COMPANY, INC. THE (4)
HANSFORD (195) 4 4 +0 STRAT LAND EXPLORATION COMPANY (2) · CONOCOPHILLIPS COMPANY (1) · LAREDO PETROLEUM, INC. (1)
HARRIS (201) 2 4 +2 EXXON MOBIL CORPORATION (4)
LUBBOCK (303) 5 4 -1 BROWN, H.L. OPERATING, L.L.C. (2) · CHOLLA PETROLEUM, INC. (1) · TEXON OIL COMPANY, INC. (1)
POLK (373) 8 4 -4 UNIT PETROLEUM COMPANY (2) · FAMCOR OIL, INC. (1) · JET OIL PRODUCERS, INC. (1)
SHERMAN (421) 3 4 +1 PANTERA ENERGY COMPANY (2) · TRAVELERS OIL COMPANY (2)
ANDERSON (1) 11 3 -8 BAY-TECH OPERATING CO., INC. (1) · BBC&D ENTERPRISES, LLC (1) · CHEVRON U. S. A. INC. (1)
COLORADO (89) 15 3 -12 C & E OPERATING, INC. (2) · LAVACA RIVER OPERATING CO., LLC (1)
CONCHO (95) 3 3 +0 CANAN MOWREY OPERATING, LLC (1) · GUFFEY, WM. R. (1) · MCCAMMON OIL & GAS, INC. (1)
FAYETTE (149) 3 3 +0 SOUTHERN BAY OPERATING, L.L.C. (2) · ENERVEST OPERATING, L.L.C. (1)
HENDERSON (213) 10 3 -7 DECKER OPERATING CO., L.L.C. (1) · RANDALL EXPLORATION, LLC (1) · STROUD PETROLEUM, INC. (1)
LEE (287) 4 3 -1 FOREST OIL CORPORATION (1) · LEEXUS OIL LLC (1) · WILLIAMS, CLAYTON ENERGY, INC. (1)
MOORE (341) 8 3 -5 GILLISPIE, INC. (1) · LINN OPERATING, INC. (1) · PANTERA ENERGY COMPANY (1)
OLDHAM (359) 0 3 +3 AOG, INC. (2) · CAMBRIDGE PRODUCTION, INC. (1)
ORANGE (361) 2 3 +1 MAGNUM PRODUCING, LP (1) · PETRODOME OPERATING, LLC (1) · SAMSON LONE STAR, LLC (1)
SMITH (423) 3 3 +0 3-T EXPLORATION, INC. (2) · GOLDSTON OIL CORPORATION (1)
UPSHUR (459) 4 3 -1 VERADO ENERGY, INC. (2) · PATARA OIL & GAS LLC (1)
WALLER (473) 4 3 -1 DENVER ENERGY EXPLORATION,LLC (2) · TRIANGLE THREE RESOURCES L.L.C. (1)
WILLACY (489) 5 3 -2 BLAKENERGY OPERATING, LLC (1) · EXXON MOBIL CORPORATION (1) · LIGHTHOUSE OPERATING, INC. (1)
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