Oil and gas leases in Mcmullen County — page 10

Mcmullen County, Texas has 2,613 oil and gas leases with production on file at the Railroad Commission. 1,000 of them are oil leases and 1,613 are gas leases. Between them they carry 5,075 wellbores. Reported volumes run from January 1993 to August 2026 and come to 408.4 million barrels of oil and 1.8 billion Mcf of gas. 256 operators file returns here. Every lease below has its own page with a decline-curve forecast and an estimate of what the whole lease is worth.

Key facts about Mcmullen County

How many oil and gas leases are in Mcmullen County?: Mcmullen County has 2,613 oil and gas leases with production reported to the Railroad Commission of Texas, as of August 2026.
How much oil and gas has Mcmullen County produced?: Leases in Mcmullen County have reported 408,421,659 barrels of oil (bbl) and 1,775,962,826 thousand cubic feet of gas (Mcf) to the Railroad Commission of Texas between January 1993 and August 2026.
How many operators are active in Mcmullen County?: 256 operators file production returns for leases in Mcmullen County.
How much are mineral rights in Mcmullen County worth?: There is no single figure: what a mineral or royalty interest in Mcmullen County is worth depends on the individual lease, its decline, and the share the owner holds. Each of the 2,613 leases listed here has its own page with the full production history the operator reported, a decline-curve forecast, and an estimate of what a royalty interest in it is worth today.

Leases — page 10 of 14

COBRA B — oil, Abraxas Petroleum Corporation, Mcmullen County, 167 thousand reported
LOCKE PARTNERSHIP F — oil, Gulftex Energy, LLC, Mcmullen County, 166 thousand reported
SBR — gas, Swift Energy Company, Mcmullen County, 165 thousand reported
MURRAY — oil, Valence Operating Company, Mcmullen County, 164 thousand reported
HUFF — gas, Swift Energy Operating, LLC, Mcmullen County, 164 thousand reported
COBRA 10A — oil, Ridgemar Energy Operating, LLC, Mcmullen County, 164 thousand reported
WHEELER HC1 — oil, Ineos USA Oil & Gas LLC, Mcmullen County, 164 thousand reported
SUNFLOWER UNIT — oil, Murphy Expl. & Prod. Co. - USA, Mcmullen County, 163 thousand reported
LOCKE PARTNERSHIP G — oil, Gulftex Energy, LLC, Mcmullen County, 162 thousand reported
SBR — gas, Swift Energy Company, Mcmullen County, 162 thousand reported
LESTER POWERS UNIT — oil, Statoil Texas Onshore Prop LLC, Mcmullen County, 162 thousand reported
WHITEHURST — gas, Swift Energy Operating, LLC, Mcmullen County, 162 thousand reported
SWAIM 58 — oil, Manti Operating Company, Mcmullen County, 161 thousand reported
RHODE, R. W. — gas, Padon, Frank B. Oil Oper., Inc., Mcmullen County, 161 thousand reported
STS NORTH UNIT 5 — oil, Hunt Oil Company, Mcmullen County, 160 thousand reported
TOM FRANKLIN F — oil, Gulftex Energy, LLC, Mcmullen County, 160 thousand reported
HENRY, J. B. — oil, Hawn Brothers Company, Mcmullen County, 159 thousand reported
SWR "H" — gas, Swift Energy Company, Mcmullen County, 159 thousand reported
ASPEN C — oil, Eog Resources, Inc., Mcmullen County, 159 thousand reported
DILWORTH RANCH H D — oil, Rosewood Resources, Inc., Mcmullen County, 159 thousand reported
CAMARO POENISCH A1 — oil, Ridgemar Energy Operating, LLC, Mcmullen County, 159 thousand reported
BLAHA-DILWORTH (SA) — oil, Talisman Energy USA Inc., Mcmullen County, 158 thousand reported
STS NORTH UNIT 6 — oil, Hunt Oil Company, Mcmullen County, 158 thousand reported
DOUBLE K UNIT A — oil, Murphy Expl. & Prod. Co. - USA, Mcmullen County, 158 thousand reported
PEELER EFS — oil, Texoz E&P I, Inc., Mcmullen County, 158 thousand reported
MCKENZIE UNIT F — oil, Chesapeake Operating, Inc., Mcmullen County, 157 thousand reported
FRANKLIN HOME A — oil, Gulftex Energy, LLC, Mcmullen County, 157 thousand reported
LOCKE PARTNERSHIP B — oil, Gulftex Energy, LLC, Mcmullen County, 157 thousand reported
POWERS-GREEN SWAIM (SA) D2 — oil, Repsol Oil & Gas USA, LLC, Mcmullen County, 157 thousand reported
HOSKINS-TX EFS — oil, Sea Eagle Ford, LLC, Mcmullen County, 157 thousand reported
DOBBY P — oil, Eog Resources, Inc., Mcmullen County, 157 thousand reported
RANCHO TRES HIJOS ALLOCATION B — oil, Trinity Operating (Usg), LLC, Mcmullen County, 157 thousand reported
STS NORTH UNIT 15 — oil, Hunt Oil Company, Mcmullen County, 157 thousand reported
GUBBELS — oil, Lakewood Operating, Ltd., Mcmullen County, 157 thousand reported
SBR — gas, Swift Energy Company, Mcmullen County, 156 thousand reported
MCCLAUGHERTY, I. O. "A" — gas, Inland Ocean, Inc., Mcmullen County, 156 thousand reported
Y-BAR EAST — oil, Murphy Expl. & Prod. Co. - USA, Mcmullen County, 156 thousand reported
STS NORTH UNIT 20 — oil, Hunt Oil Company, Mcmullen County, 156 thousand reported
LOCKE PARTNERSHIP E — oil, Gulftex Energy, LLC, Mcmullen County, 156 thousand reported
WESLEY SWAIM UNIT-WS (SA) A5 — oil, Repsol Oil & Gas USA, LLC, Mcmullen County, 155 thousand reported
DILWORTH RANCH G B — oil, Rosewood Resources, Inc., Mcmullen County, 154 thousand reported
POWERS-GREEN SWAIM (SA) D5 — oil, Repsol Oil & Gas USA, LLC, Mcmullen County, 154 thousand reported
SBR — gas, Swift Energy Company, Mcmullen County, 154 thousand reported
KASSNER ENERGY MANAGEMENT, LLC — oil, H. & J. Drilling Company, Mcmullen County, 154 thousand reported
HUFF — gas, Swift Energy Company, Mcmullen County, 153 thousand reported
LAYTON "A" — gas, Xto Energy Inc., Mcmullen County, 153 thousand reported
EPLEY — gas, San Isidro Development Co, L. C., Mcmullen County, 153 thousand reported
R. HENRY — oil, Abraxas Petroleum Corporation, Mcmullen County, 152 thousand reported
FRANKLIN HOME C — oil, Gulftex Energy, LLC, Mcmullen County, 152 thousand reported
S.T.S. -E- — gas, Petrolero Corp., Mcmullen County, 152 thousand reported
COBRA 10B — oil, Ridgemar Energy Operating, LLC, Mcmullen County, 151 thousand reported
WHEELER, LEE A-2 — oil, Welhausen Operating Company, LP, Mcmullen County, 151 thousand reported
GLORIA WHEELER 'E' — gas, Trinity Operating (Usg), LLC, Mcmullen County, 151 thousand reported
RHODE, D. W. -25- — gas, BP America Production Company, Mcmullen County, 151 thousand reported
BAKER BLK 50 — gas, Vastar Resources, Inc., Mcmullen County, 150 thousand reported
FRANKLIN HOME B — oil, Gulftex Energy, LLC, Mcmullen County, 150 thousand reported
MARTIN-STATE GAS UNIT — gas, Hurd Enterprises, Ltd., Mcmullen County, 150 thousand reported
FRANKLIN UNIT — oil, Murphy Expl. & Prod. Co. - USA, Mcmullen County, 150 thousand reported
WHEELER, KAREN — oil, Welhausen Operating Company, LP, Mcmullen County, 149 thousand reported
STS UNIT — oil, Blackbrush O & G, LLC, Mcmullen County, 149 thousand reported
RENSHAW UNIT — gas, South Texas Limited Partnership, Mcmullen County, 149 thousand reported
CAMARO POENISCH A2 — oil, Ridgemar Energy Operating, LLC, Mcmullen County, 148 thousand reported
LINDHOLM/RHODE — gas, Lindholm Oil, Inc., Mcmullen County, 147 thousand reported
HENRY EF — oil, Swift Energy Operating, LLC, Mcmullen County, 147 thousand reported
HAT CREEK F — oil, Eog Resources, Inc., Mcmullen County, 147 thousand reported
POWERSG-WSU-WS (SA) A4 — oil, Repsol Oil & Gas USA, LLC, Mcmullen County, 146 thousand reported
STS NORTH UNIT 17 — oil, Hunt Oil Company, Mcmullen County, 145 thousand reported
QUINTANILLA OL — oil, Texoz E&P I, Inc., Mcmullen County, 144 thousand reported
BLAHA-DILWORTH (SA-2) — oil, Talisman Energy USA Inc., Mcmullen County, 144 thousand reported
DOBBY M — oil, Eog Resources, Inc., Mcmullen County, 144 thousand reported
WESLEY SWAIM UNIT-WS (SA) A6 — oil, Repsol Oil & Gas USA, LLC, Mcmullen County, 143 thousand reported
GUBBELS — oil, Lakewood Operating, Ltd., Mcmullen County, 143 thousand reported
LOCKE PARTNERSHIP C — oil, Gulftex Energy, LLC, Mcmullen County, 143 thousand reported
SBR — gas, Swift Energy Company, Mcmullen County, 142 thousand reported
STS NORTH UNIT 22 — oil, Hunt Oil Company, Mcmullen County, 142 thousand reported
STS NORTH UNIT 16 — oil, Hunt Oil Company, Mcmullen County, 142 thousand reported
SBR — gas, Swift Energy Company, Mcmullen County, 142 thousand reported
RANCHO TRES HIJOS "B" — gas, Trinity Operating (Usg), LLC, Mcmullen County, 142 thousand reported
THIER UNIT — oil, Murphy Expl. & Prod. Co. - USA, Mcmullen County, 141 thousand reported
AE 76 RANCH — oil, Ageron Energy, LLC, Mcmullen County, 140 thousand reported
EDRINGTON, H. C. EST. -I- — gas, Simray Oil & Gas, Inc., Mcmullen County, 139 thousand reported
HARRIS, MARTIN R. ET AL — oil, Delray Oil, Inc., Mcmullen County, 139 thousand reported
DIAMOND J UNIT A MCM — oil, Excalibur E & P, LLC, Mcmullen County, 138 thousand reported
GLORIA WHEELER 'E' — oil, Comstock Oil & Gas, LP, Mcmullen County, 138 thousand reported
MATOCHA — oil, Texaco E & P Inc., Mcmullen County, 138 thousand reported
SBR — gas, Swift Energy Company, Mcmullen County, 138 thousand reported
STS AW A — oil, Blackbrush O & G, LLC, Mcmullen County, 137 thousand reported
DILWORTH RANCH B B — oil, Rosewood Resources, Inc., Mcmullen County, 137 thousand reported
SWENSON — gas, Manti Operating Company, Mcmullen County, 137 thousand reported
DILWORTH RANCH H E — oil, Rosewood Resources, Inc., Mcmullen County, 136 thousand reported
BRACKEN "A" — gas, Swift Energy Company, Mcmullen County, 136 thousand reported
KETCHBAW UNIT — oil, Murphy Expl. & Prod. Co. - USA, Mcmullen County, 136 thousand reported
HAT CREEK E — oil, Eog Resources, Inc., Mcmullen County, 136 thousand reported
SBR — gas, Swift Energy Company, Mcmullen County, 135 thousand reported
POWERS-GREEN SWAIM (SA) D1 — oil, Repsol Oil & Gas USA, LLC, Mcmullen County, 135 thousand reported
QUINTANILLA -B- — oil, Welhausen Operating Company, LP, Mcmullen County, 134 thousand reported
WHEELER, CLIFTON ET AL — gas, BNP Petroleum Corporation, Mcmullen County, 133 thousand reported
ROOS GAS UNIT NO. 1 — gas, Bridge Oil Company, L. P., Mcmullen County, 133 thousand reported
DISCHER EF B — oil, Silverbow Resources Oper, LLC, Mcmullen County, 132 thousand reported
HORTON -M- — oil, Texaco E & P Inc., Mcmullen County, 132 thousand reported
WHEELER-WHITE EFS — oil, Sea Eagle Ford, LLC, Mcmullen County, 132 thousand reported
SWAIM UNIT I MCM — oil, Chesapeake Operating, Inc., Mcmullen County, 132 thousand reported
TILDEN UNIT — oil, Statoil Texas Onshore Prop LLC, Mcmullen County, 131 thousand reported
MCKENZIE FOLEY UNIT B MCM — oil, Chesapeake Operating, Inc., Mcmullen County, 131 thousand reported
RUTHERFORD, W.C. EST. — oil, American Exploration Company, Mcmullen County, 131 thousand reported
STS NORTH UNIT 21 — oil, Hunt Oil Company, Mcmullen County, 131 thousand reported
JEFFERSON GAS UNIT — gas, Wagner Oil Company, Mcmullen County, 130 thousand reported
STS AW B — oil, Blackbrush O & G, LLC, Mcmullen County, 130 thousand reported
ATKINSON, J. W. -A- — gas, Cliffwood Production Co., Mcmullen County, 130 thousand reported
TAYLOR, H.D. — oil, American Exploration Company, Mcmullen County, 130 thousand reported
PLOMERO UNIT C — oil, Burlington Resources O & G Co LP, Mcmullen County, 129 thousand reported
HILL SA — oil, Comstock Oil & Gas, LP, Mcmullen County, 129 thousand reported
ZR "A" — gas, Swift Energy Company, Mcmullen County, 129 thousand reported
LINDHOLM — gas, Texaco E & P Inc., Mcmullen County, 128 thousand reported
ZR "A" — gas, Swift Energy Company, Mcmullen County, 128 thousand reported
DILWORTH RANCH H C — oil, Rosewood Resources, Inc., Mcmullen County, 127 thousand reported
SBR — gas, Swift Energy Company, Mcmullen County, 127 thousand reported
RABKE — oil, Century Resources, Inc., Mcmullen County, 127 thousand reported
QUINTANILLA SAN MIGUEL — oil, Welhausen Operating Co., Inc., Mcmullen County, 126 thousand reported
PEELER — oil, Aurora Resources Corporation, Mcmullen County, 126 thousand reported
STS MCJUNKIN "G" — gas, Kimbell Oil Company Of Texas, Mcmullen County, 125 thousand reported
QUINTANILLA ME-YOU EF — oil, Swift Energy Operating, LLC, Mcmullen County, 125 thousand reported
FORREST WHEELER 'E' — oil, Comstock Oil & Gas, LP, Mcmullen County, 124 thousand reported
DISCHER EF A — oil, Silverbow Resources Oper, LLC, Mcmullen County, 124 thousand reported
SWR — gas, Swift Energy Company, Mcmullen County, 124 thousand reported
HORTON R P (TROY BALLARD) — oil, Dolch Production, Inc., Mcmullen County, 123 thousand reported
WHEELER, CHARLES — oil, Welhausen Operating Co., Inc., Mcmullen County, 123 thousand reported
NAYLOR JONES 46 B — oil, Eog Resources, Inc., Mcmullen County, 122 thousand reported
WOODWARD, CHARLES — gas, Harmony Drilling Company, Inc., Mcmullen County, 122 thousand reported
MCCLAUGHERTY A EF — oil, Swift Energy Operating, LLC, Mcmullen County, 122 thousand reported
SBR — gas, Swift Energy Company, Mcmullen County, 122 thousand reported
LASITER, A.L. — oil, American Exploration Company, Mcmullen County, 122 thousand reported
ALLEN MCM — oil, Chesapeake Operating, Inc., Mcmullen County, 122 thousand reported
SBR — gas, Swift Energy Operating, LLC, Mcmullen County, 121 thousand reported
GRAN TORINO A — gas, Callon (Eagle Ford) LLC, Mcmullen County, 121 thousand reported
COBRA 10D — oil, Ridgemar Energy Operating, LLC, Mcmullen County, 121 thousand reported
BRACKEN "A" — gas, Swift Energy Company, Mcmullen County, 120 thousand reported
DRIGGS, J. P. — oil, Parker & Parsley Development Co., Mcmullen County, 120 thousand reported
LINDHOLM, STEVE — oil, Stout Consulting Services, Inc., Mcmullen County, 120 thousand reported
NICHOLS STATE UNIT — oil, Escondido Resources II, LLC, Mcmullen County, 120 thousand reported
SWR — gas, Swift Energy Company, Mcmullen County, 119 thousand reported
GOUGHER, H. E. — gas, Simray Oil & Gas, Inc., Mcmullen County, 119 thousand reported
COUSINS LIVING TRUST — gas, Padon, Frank B. Oil Oper., Inc., Mcmullen County, 118 thousand reported
SBR — gas, Swift Energy Company, Mcmullen County, 118 thousand reported
GENTRY RANCH — oil, Wapiti Operating, LLC, Mcmullen County, 117 thousand reported
HOUSE, H. D. "B" — gas, Harmony Drilling Company, Inc., Mcmullen County, 117 thousand reported
POWERS-GREEN SWAIM (SA) F8 — oil, Repsol Oil & Gas USA, LLC, Mcmullen County, 117 thousand reported
BILLINGS, A. — oil, American Exploration Company, Mcmullen County, 117 thousand reported
SOUTH TEXAS SYNDICATE "A" — gas, Swift Energy Company, Mcmullen County, 117 thousand reported
SBR — gas, Swift Energy Company, Mcmullen County, 116 thousand reported
OWENS GAS UNIT — gas, South Texas Limited Partnership, Mcmullen County, 116 thousand reported
RTH UNIT — oil, Murphy Expl. & Prod. Co. - USA, Mcmullen County, 116 thousand reported
POWERS-GREEN SWAIM (SA) D3 — oil, Repsol Oil & Gas USA, LLC, Mcmullen County, 116 thousand reported
PALOMA-HORTON — oil, Welhausen Operating Co., Inc., Mcmullen County, 116 thousand reported
SAN MIGUEL RANCH EF — gas, Swift Energy Operating, LLC, Mcmullen County, 115 thousand reported
SAN MIGUEL RANCH EF — gas, Swift Energy Operating, LLC, Mcmullen County, 115 thousand reported
LINDHOLM/RHODE — gas, Lindholm Oil, Inc., Mcmullen County, 115 thousand reported
WHITEHURST — gas, Swift Energy Operating, LLC, Mcmullen County, 114 thousand reported
QUINTANILLA-WHITE EFS — oil, Sea Eagle Ford, LLC, Mcmullen County, 114 thousand reported
SBR — gas, Swift Energy Company, Mcmullen County, 114 thousand reported
DICKINSON, J. H. — gas, Blackbrush O & G, Inc., Mcmullen County, 112 thousand reported
LINDHOLM — gas, Texaco E & P Inc., Mcmullen County, 112 thousand reported
MC CLAUGHERTY, L. S. GAS UNIT #1 — gas, Swift Energy Company, Mcmullen County, 112 thousand reported
MORRILL UNIT G — oil, Burlington Resources O & G Co LP, Mcmullen County, 112 thousand reported
ROOS, L. W. — gas, Pearl, Bill H. Productions, Inc., Mcmullen County, 111 thousand reported
HORTON - JCB — oil, Welhausen Operating Co., Inc., Mcmullen County, 111 thousand reported
WHITEHURST — gas, Swift Energy Operating, LLC, Mcmullen County, 111 thousand reported
COBRA 10C — oil, Ridgemar Energy Operating, LLC, Mcmullen County, 111 thousand reported
HERRERA, GREGORIO ET AL — oil, Century Resources, Inc., Mcmullen County, 111 thousand reported
Y-BAR A — oil, Castlerock Ef Operating LLC, Mcmullen County, 110 thousand reported
MARTIN 60 GAS UNIT — gas, Bass Enterprises Production Co., Mcmullen County, 109 thousand reported
FORREST WHEELER — oil, Comstock Oil & Gas, LP, Mcmullen County, 109 thousand reported
BRACKEN ET AL — gas, Swift Energy Company, Mcmullen County, 109 thousand reported
NOLAN RYAN — gas, Kaler Energy Corp., Mcmullen County, 108 thousand reported
DILWORTH, J. C. JR. — gas, Exxon Corp., Mcmullen County, 108 thousand reported
SBR — gas, Swift Energy Company, Mcmullen County, 108 thousand reported
DOUBLE K NORTH — oil, Century Resources, Inc., Mcmullen County, 108 thousand reported
GUBBELS "B" — oil, Lakewood Operating, Ltd., Mcmullen County, 108 thousand reported
MORRILL — oil, Manti Operating Company, Mcmullen County, 107 thousand reported
DILWORTH RANCH H B — oil, Rosewood Resources, Inc., Mcmullen County, 107 thousand reported
DILWORTH, J.C. — oil, Roma Oil And Gas, Inc., Mcmullen County, 107 thousand reported
JEFFERSON GAS UNIT I — gas, Fina Oil & Chemical Company, Mcmullen County, 106 thousand reported
KASSNER ENERGY MANAGEMENT, LLC — oil, H. & J. Drilling Company, Mcmullen County, 106 thousand reported
DW SP3 AW — oil, Blackbrush O & G, LLC, Mcmullen County, 106 thousand reported
DICKINSON UNIT F — oil, Chesapeake Operating, Inc., Mcmullen County, 106 thousand reported
PEELER — gas, Sutton Producing Corp., Mcmullen County, 105 thousand reported
SWR "B" — gas, Swift Energy Company, Mcmullen County, 105 thousand reported
OTTO-WHIPPLE 4H UNIT — oil, Blackbrush O & G, LLC, Mcmullen County, 105 thousand reported
SWR "B" — gas, Swift Energy Company, Mcmullen County, 104 thousand reported
JEFFERSON — gas, Wagner Oil Company, Mcmullen County, 104 thousand reported
SBR — gas, Swift Energy Company, Mcmullen County, 104 thousand reported
ZR "A' — gas, Swift Energy Company, Mcmullen County, 103 thousand reported
QUINTANILLA, LEO TRUSTEE — oil, CD Resources Company, Mcmullen County, 103 thousand reported
BRACKEN NORTH A — oil, Rosewood Resources, Inc., Mcmullen County, 103 thousand reported
QUINTANILLA-BALLARD — oil, Welhausen Operating Co., Inc., Mcmullen County, 102 thousand reported
TEXACO GOUGER FEE — gas, High Sierra Operating, Ltd., Mcmullen County, 102 thousand reported
BLM — oil, Dreyfus, Louis Natural Gas Corp, Mcmullen County, 102 thousand reported
BRACKEN — gas, Swift Energy Operating, LLC, Mcmullen County, 102 thousand reported
ALAMO NATIONAL BANK TRUSTEE — gas, Martin, Glen A., Mcmullen County, 102 thousand reported
TEXACO COUGER FEE — gas, High Sierra Operating, Ltd., Mcmullen County, 102 thousand reported

Production figures are as reported to the Railroad Commission of Texas. Values shown on lease pages are estimates produced by fitting a decline curve to that reported history; they are not offers or appraisals.