Oil and gas leases in Starr County — page 11

Starr County, Texas has 3,285 oil and gas leases with production on file at the Railroad Commission, all of them in Commission district 04. 434 of them are oil leases and 2,851 are gas leases. Between them they carry 3,688 wellbores. Reported volumes run from January 1993 to August 2026 and come to 16.6 million barrels of oil and 3.1 billion Mcf of gas. 245 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 Starr County

How many oil and gas leases are in Starr County?: Starr County has 3,285 oil and gas leases with production reported to the Railroad Commission of Texas, as of August 2026.
How much oil and gas has Starr County produced?: Leases in Starr County have reported 16,596,226 barrels of oil (bbl) and 3,108,595,775 thousand cubic feet of gas (Mcf) to the Railroad Commission of Texas between January 1993 and August 2026.
How many operators are active in Starr County?: 245 operators file production returns for leases in Starr County.
How much are mineral rights in Starr County worth?: There is no single figure: what a mineral or royalty interest in Starr County is worth depends on the individual lease, its decline, and the share the owner holds. Each of the 3,285 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 11 of 17

DON CAMERON ETAL UNIT — gas, Neuhaus, V. F. Properties, Inc., Starr County, 127 thousand reported
SLICK, T. B. ESTATE — gas, Fina Oil & Chemical Company, Starr County, 127 thousand reported
GONZALES, OSBELIA SAENZ ET AL — gas, Prolithic Energy Company, L.P., Starr County, 126 thousand reported
FARIAS UNIT — gas, Neuhaus, V. F. Properties, Inc., Starr County, 126 thousand reported
CAMERON "A" — gas, Cameron, Paul E., JR., Inc., Starr County, 126 thousand reported
BRANNAN — gas, Ram Operating Company, Inc., Starr County, 126 thousand reported
MCGILL BROS. — gas, Exxon Corp., Starr County, 125 thousand reported
MARGO 'A' — gas, Newgulf Petroleum, LLC, Starr County, 125 thousand reported
SAMANO — gas, El Paso Production Oil & Gas Co., Starr County, 125 thousand reported
DE GARCIA, B. G. — gas, Kerr-Mcgee Oil & Gas Onshore LP, Starr County, 125 thousand reported
FIRST NATIONAL BANK OF MISSION — gas, Energy Development Corp., Starr County, 125 thousand reported
GONZALES — gas, Texas Independent Explor Ltd., Starr County, 125 thousand reported
SLICK, EARL F. — gas, Hanson Production Company, Starr County, 124 thousand reported
HEARD, J. F. B. — gas, Integrated Operating Corporation, Starr County, 124 thousand reported
GARCIA, J. A. — gas, El Paso Production Oil & Gas Co., Starr County, 122 thousand reported
ACEVEDO — gas, Legend Natural Gas IV, LP, Starr County, 122 thousand reported
MARGO "A" — gas, Newgulf Petroleum, LLC, Starr County, 122 thousand reported
PLAINS CAPITAL — oil, Mortimer Production Company, Starr County, 122 thousand reported
DE GARCIA, B. G. — gas, Oryx Energy Company, Starr County, 122 thousand reported
GARCIA LAND AND LIVESTOCK — gas, Hughes, Dan A. Company, L.P., Starr County, 121 thousand reported
HERMANN, A.G. GAS UNIT — gas, Oryx Energy Company, Starr County, 121 thousand reported
MONTALVO HEIRS 'B' — gas, Killam Oil Co., Ltd., Starr County, 121 thousand reported
ALVAREZ-HINOJOSA GAS UNIT — gas, Oryx Energy Company, Starr County, 120 thousand reported
GUERRA, A.M. — gas, Christico Petroleum Company, Starr County, 120 thousand reported
SLICK, T. B. ESTATE — gas, Totalfinaelf E&P USA Inc, Starr County, 120 thousand reported
MARGO — gas, Newgulf Petroleum, LLC, Starr County, 119 thousand reported
GUERRA ESTATE — gas, Enercorp Resources, Inc., Starr County, 119 thousand reported
SLICK, T. B. ESTATE — gas, Fina Oil & Chemical Company, Starr County, 119 thousand reported
SLICK, T.B. ESTATE A 527 — gas, Forest Oil Corporation, Starr County, 119 thousand reported
SLICK, T.B. E-537 — gas, Conoco Inc., Starr County, 119 thousand reported
GARZA, A. M.- STATE — gas, Shell Western E&P, Starr County, 118 thousand reported
PENA, EMMA — gas, Comstock Oil & Gas, Inc., Starr County, 118 thousand reported
SLICK, T. B. ESTATE "B" 536 — oil, Forest Oil Corporation, Starr County, 118 thousand reported
TEXACO FEE GUERRA "F" — gas, Lynx Energy Company, Inc., Starr County, 118 thousand reported
CARDENAS, R. R. — gas, Oryx Energy Company, Starr County, 118 thousand reported
T. B. SLICK B /222/ — gas, Conoco Inc., Starr County, 117 thousand reported
SLICK — gas, Royal Production Company, Inc., Starr County, 117 thousand reported
SLICK, T. B., ESTATE -E- — oil, Conoco Inc., Starr County, 117 thousand reported
HOWELL, J. J. — gas, Shell Western E&P Inc., Starr County, 117 thousand reported
A. G. HERMAN GAS UNIT — gas, Oryx Energy Company, Starr County, 116 thousand reported
SAMANO — gas, Starco Exploration, Inc., Starr County, 116 thousand reported
DE GARZA, J.G. — gas, Shana Petroleum Company, Starr County, 116 thousand reported
CANTU-FLORES — gas, Hanson Production Company, Starr County, 116 thousand reported
MCKINNEY, AMANDA — gas, Exaro Energy II, LLC, Starr County, 116 thousand reported
GARCIA BB — gas, Wagner Oil Company, Starr County, 116 thousand reported
A. G. HERMANN GAS UNIT — gas, Kerr-Mcgee Oil & Gas Onshore LLC, Starr County, 115 thousand reported
LMB CORP - STATE "A" — gas, Ceniza Petroleum, Inc., Starr County, 115 thousand reported
COOPER FOUNDATION — gas, Eog Resources, Inc., Starr County, 114 thousand reported
GUERRA, F.B. — gas, M & S Production Company, Starr County, 114 thousand reported
GARCIA — gas, Reveille Resources, Starr County, 114 thousand reported
CANTU — gas, WJW Operating Co.,LLC, Starr County, 114 thousand reported
REILLY HEIRS — gas, Kerr-Mcgee Oil & Gas Onshore LP, Starr County, 114 thousand reported
MONTALVO, N.R. — gas, Exxon Corp., Starr County, 114 thousand reported
PENA, LUIS "B" — gas, TNT Petroleum Company, Inc., Starr County, 113 thousand reported
SIMPSON — gas, Headington Oil Company, L.P., Starr County, 113 thousand reported
ROOS BENNETT — gas, Kestrel Resources, Inc., Starr County, 112 thousand reported
BLOOMBERG, SAMUEL D. — gas, Apache Corporation, Starr County, 112 thousand reported
STATE SLICK "D" — gas, Fina Oil & Chemical Company, Starr County, 112 thousand reported
DE GARCIA, B. G. — gas, Oryx Energy Company, Starr County, 112 thousand reported
VILLAREAL — gas, Newman Operating Company, Starr County, 111 thousand reported
MCLEAN, MARRS — oil, South Texas Limited Partnership, Starr County, 111 thousand reported
GONZALES — gas, Texas Independent Explor., Inc., Starr County, 111 thousand reported
SLICK, T.B. ESTATE A — gas, Conoco Inc., Starr County, 111 thousand reported
BLOOMBERG, SAMUEL D. — gas, Apache Corporation, Starr County, 111 thousand reported
T.B. SLICK ESTATE A 485 — gas, Houston Exploration Company, The, Starr County, 110 thousand reported
CAMERON 554 — gas, Texas Independent Explor., Inc., Starr County, 110 thousand reported
GARCIA, I. Y. — gas, Oryx Energy Company, Starr County, 110 thousand reported
HEARD — gas, Ram Operating Company, Inc., Starr County, 110 thousand reported
SPEER, GEO. H. ST "B" — gas, Exaro Energy II, LLC, Starr County, 110 thousand reported
MONTALVO, I.V. -C- — oil, Oryx Energy Company, Starr County, 110 thousand reported
YZAGUIRRE — gas, Texas Independent Explor., Inc., Starr County, 110 thousand reported
GARCIA L&L CO. — gas, Smith Production Inc., Starr County, 109 thousand reported
HEARD, J.F.B. — gas, Alpha Omega Petroleum, Inc., Starr County, 109 thousand reported
SEMMES TRUST, ET AL "906" — oil, Conocophillips Company, Starr County, 109 thousand reported
SANCHEZ, Y. — gas, M & S Production Company, Starr County, 108 thousand reported
HEARD,J.F.B. — gas, Alpha Omega Petroleum, Inc., Starr County, 108 thousand reported
FARIAS — gas, Neuhaus, V. F. Properties, Inc., Starr County, 108 thousand reported
SEABURY, MARGARET MRS. — gas, White Oak Operating Company LLC, Starr County, 108 thousand reported
ESTRELLA GAS UNIT — gas, Dynamic Production, Inc., Starr County, 108 thousand reported
T. B. SLICK ESTATE 'A' 265 — oil, Hilcorp Energy Company, Starr County, 107 thousand reported
SLICK ESTATE — gas, Texas Independent Explor., Inc., Starr County, 107 thousand reported
SLICK ESTATE -C- — gas, Kerr-Mcgee Oil & Gas Onshore LLC, Starr County, 107 thousand reported
I.V. MONTALVO 'C' — gas, Killam Oil Co., Ltd., Starr County, 107 thousand reported
F.B. GUERRA ESTATE "B" — gas, Wynn-Crosby Energy, Inc., Starr County, 107 thousand reported
ECHOLS — gas, Milagro Exploration, LLC, Starr County, 107 thousand reported
BLISS — gas, El Paso Production Oil & Gas Co., Starr County, 107 thousand reported
BENAVIDES, ETAL GAS UNIT — gas, Coastal Oil & Gas Corporation, Starr County, 106 thousand reported
BENTSEN , L.M. — gas, Quisto Expl. & Production, L.C., Starr County, 106 thousand reported
LAS ESCOBAS — gas, Eog Resources, Inc., Starr County, 105 thousand reported
I.V. MONTALVO 'A' — gas, Killam Oil Co., Ltd., Starr County, 105 thousand reported
ZERTUCHE UNIT — gas, Newgulf Petroleum, LLC, Starr County, 104 thousand reported
ORIVE, A. — gas, Oryx Energy Company, Starr County, 104 thousand reported
YTURRIA L & L — gas, El Paso Production Oil & Gas Co., Starr County, 104 thousand reported
STATE/SLICK — gas, Pioneer Natural Res. USA, Inc., Starr County, 104 thousand reported
BENTSEN TRACT IV — gas, Samson Lone Star LP, Starr County, 104 thousand reported
MARGO "A" — gas, Newgulf Petroleum, LLC, Starr County, 104 thousand reported
DAVENPORT -A- — gas, Texas Independent Explor., Inc., Starr County, 104 thousand reported
STATE OF TEXAS SLICK #5 — gas, Star Of Texas Energy SRVS, Inc., Starr County, 104 thousand reported
ARRIAGA GU "F" — gas, El Paso Production Oil & Gas Co., Starr County, 103 thousand reported
ACEVEDO, H. OIL UNIT — oil, Suemaur Exploration, Inc., Starr County, 103 thousand reported
LA BRISA RANCH — gas, Belco Operating Corp., Starr County, 102 thousand reported
BARRERA, F. - STATE — gas, Shell Western E&P, Starr County, 102 thousand reported
GUERRA — gas, Mortimer Production Company, Starr County, 102 thousand reported
MURCH, B. L. — oil, Hughes, Dan A. Company, Starr County, 101 thousand reported
BLOOMBERG, SAMUEL D. — gas, Hanson Production Company, Starr County, 101 thousand reported
LAUREL, C. — gas, Oryx Energy Company, Starr County, 101 thousand reported
GUTIERREZ GAS UNIT — gas, Legend Natural Gas III, LP, Starr County, 100 thousand reported
MCCLURE NORTH — gas, Eog Resources, Inc., Starr County, 100 thousand reported
GARZA HEIRS — oil, Bommer Engineering Co., Starr County, 100 thousand reported
SAMANO — gas, Smith Production Inc., Starr County, 100 thousand reported
GUERRA GAS UNIT "A" — gas, El Paso E & P Company, L. P., Starr County, 100 thousand reported
FROST NATIONAL BANK -A- — gas, Kerr-Mcgee Oil & Gas Onshore LLC, Starr County, 99 thousand reported
LA BRISA RANCH 913 — gas, Trap Rock Oil, Ltd., Starr County, 99 thousand reported
VILLARREAL — gas, Newman Operating Company, Starr County, 99 thousand reported
DE GARZA, C.L. — gas, Oryx Energy Company, Starr County, 99 thousand reported
BOSTON TEXAS LAND TRUST — gas, Merit Energy Company, Starr County, 99 thousand reported
STATE SLICK "D" — gas, Fina Oil & Chemical Company, Starr County, 99 thousand reported
GUERRA MINERAL TRUST "NCT III" — gas, Hughes, Dan A. Company, Starr County, 99 thousand reported
COATES ENERGY TRUST ET AL — gas, Denovo Oil & Gas, Inc., Starr County, 98 thousand reported
MARGO — gas, Newgulf Petroleum, LLC, Starr County, 98 thousand reported
OLIVAREZ, O. GU — gas, Peoples Energy Prod.-TX, L.P., Starr County, 98 thousand reported
DIAZ "B" — gas, TNT Petroleum Company, Inc., Starr County, 98 thousand reported
ROOS BENNETT — gas, Kestrel Resources, Inc., Starr County, 98 thousand reported
GARZA, A. M. STATE — gas, Merit Energy Company, Starr County, 97 thousand reported
LA BRISA LAND & CATTLE CO. W — gas, TNT Petroleum Company, Inc., Starr County, 97 thousand reported
SAENZ, M. -STATE — gas, Oryx Energy Company, Starr County, 96 thousand reported
MULHOLLAND, ETAL — gas, Milagro Exploration, LLC, Starr County, 96 thousand reported
SLICK ESTATE — gas, Trap Rock Oil, Ltd., Starr County, 96 thousand reported
SLICK, T. B. B-536 — gas, Conoco Inc., Starr County, 96 thousand reported
SLICK, T. B. ESTATE — gas, Fina Oil & Chemical Company, Starr County, 96 thousand reported
CONTRERAS — gas, Toma Oil & Gas, Inc., Starr County, 95 thousand reported
LA BRISA RANCH/STATE 542-B — gas, Glenn, Wayne E. & Assoc., Inc., Starr County, 95 thousand reported
GUERRA GAS UNIT "A" — gas, Coastal Oil & Gas Corporation, Starr County, 95 thousand reported
GUERRA, A. JR. ET AL "A" — gas, PG&E Resources Company, Starr County, 95 thousand reported
NIMMO G.U. NO.1 — gas, Coastal Oil & Gas Corporation, Starr County, 94 thousand reported
CARDENAS, R.R. — gas, Oryx Energy Company, Starr County, 94 thousand reported
SPEER, GEO. H. -STATE-D — gas, Oryx Energy Company, Starr County, 94 thousand reported
GARCIA, I. Y. — gas, Smith Production Inc., Starr County, 93 thousand reported
SLICK, T.B. EST. A-221 — gas, Conoco Inc., Starr County, 93 thousand reported
GARCIA, JOSE "A" — gas, Energy Development Corp., Starr County, 93 thousand reported
SLICK, T. B. ESTATE — gas, Fina Oil & Chemical Company, Starr County, 93 thousand reported
DE LOPEZ, C. V. -B- — gas, Oryx Energy Company, Starr County, 93 thousand reported
GUERRA — gas, Samedan Oil Corporation, Starr County, 93 thousand reported
GARCIA L&L CO. — gas, Oryx Energy Company, Starr County, 92 thousand reported
MCGILL BROTHERS — gas, Exxon Corp., Starr County, 92 thousand reported
SLICK, T. B. ESTATE "A" 265 — gas, Forest Oil Corporation, Starr County, 92 thousand reported
MARTINEZ B — gas, Samedan Oil Corporation, Starr County, 91 thousand reported
SOUTHWEST FARM & RANCH-STATE — gas, Fina Oil & Chemical Company, Starr County, 91 thousand reported
SLICK, T. B. ESTATE "A" — gas, Forest Oil Corporation, Starr County, 91 thousand reported
MARGO — gas, Newgulf Petroleum, LLC, Starr County, 91 thousand reported
MARTINEZ -B- — gas, Hilcorp Energy Company, Starr County, 91 thousand reported
LA BRISA RANCH PARTNERS 91 — gas, Metano Energy, LP, Starr County, 90 thousand reported
EDMUNDS, A. K. — gas, Starco Exploration, Inc., Starr County, 90 thousand reported
GUERRA, F.B. ESTATE -B- — gas, PG&E Resources Company, Starr County, 90 thousand reported
WEHRLE, E. F. — gas, Conoco Inc., Starr County, 90 thousand reported
CAMERON STATE 554 — gas, Texas Independent Explor., Inc., Starr County, 90 thousand reported
SLICK, T.B. ESTATE "B-222" — oil, Houston Exploration Company, The, Starr County, 89 thousand reported
SLICK, T. B., EST. -B- — oil, Conoco Inc., Starr County, 89 thousand reported
GARZA-HITCHCOCK ET AL G. U. — gas, Ram Operating Company, Inc., Starr County, 89 thousand reported
DE GARCIA, B. G. — gas, Kerr-Mcgee Oil & Gas Onshore LLC, Starr County, 89 thousand reported
YTURRIA L&L CO. -B- — gas, Kerr-Mcgee Oil & Gas Onshore LLC, Starr County, 89 thousand reported
HALL, C.M. -A- — gas, Oryx Energy Company, Starr County, 89 thousand reported
DE GARZA, J.G. — gas, Shana Petroleum Company, Starr County, 89 thousand reported
GARCIA L&L CO — gas, Kerr-Mcgee Oil & Gas Onshore LLC, Starr County, 89 thousand reported
SLICK, T. B. ESTATE — gas, Totalfinaelf E&P USA Inc, Starr County, 89 thousand reported
BOSTON TEXAS LAND TRUST # 10 — gas, Legacy Corporation, The, Starr County, 88 thousand reported
GUERRA MINERAL TRUST "NCT III" — gas, Hughes, Dan A. Company, Starr County, 88 thousand reported
SUE FULLER — oil, Rlu Operating, LLC, Starr County, 88 thousand reported
I.V. MONTALVO 'C' — gas, Killam Oil Co., Ltd., Starr County, 88 thousand reported
GARCIA L&L CO. — gas, Kerr-Mcgee Oil & Gas Onshore LLC, Starr County, 88 thousand reported
SLICK ESTATE — gas, Mueller Engineering Corp., Starr County, 88 thousand reported
3 M — gas, Newgulf Petroleum, LLC, Starr County, 87 thousand reported
IRENE SHEERIN - TEXAS STATE — gas, Neuhaus, V. F. Properties, Inc., Starr County, 86 thousand reported
SLICK, T.B. ESTATE — gas, Fina Oil & Chemical Company, Starr County, 86 thousand reported
GUERRA, A. "B" UNIT — gas, PG&E Resources Company, Starr County, 85 thousand reported
CHAPOTAL LAND CO -A- — gas, Kerr-Mcgee Oil & Gas Onshore LP, Starr County, 85 thousand reported
PEREZ — gas, Stone & Webster Oil Company, Inc, Starr County, 84 thousand reported
ESCOBAR — gas, Samedan Oil Corporation, Starr County, 84 thousand reported
SLICK, T. B. ESTATE — gas, Fina Oil & Chemical Company, Starr County, 84 thousand reported
SLICK, T.B. ESTATE -B- — gas, Conoco Inc., Starr County, 83 thousand reported
BASS, VELMA — gas, Wagner, Duer & Co., Starr County, 83 thousand reported
DE GARCIA, B.G. — gas, Oryx Energy Company, Starr County, 83 thousand reported
SLICK, T. B. EST. A-265 — gas, Kerr-Mcgee Oil & Gas Onshore LLC, Starr County, 83 thousand reported
REILLY HEIRS — gas, Kerr-Mcgee Oil & Gas Onshore LP, Starr County, 83 thousand reported
CARDENAS, R. R. — gas, Kerr-Mcgee Oil & Gas Onshore LP, Starr County, 82 thousand reported
MCGILL BROS. — gas, Peoples Energy Prod.-TX, L.P., Starr County, 82 thousand reported
DE GARCIA, B. G. — gas, Kerr-Mcgee Oil & Gas Onshore LP, Starr County, 82 thousand reported
DE GARZA, J. M. — gas, Southwest Oil & Land, Inc., Starr County, 81 thousand reported
GARCIA L&L CO. — gas, Kerr-Mcgee Oil & Gas Onshore LP, Starr County, 81 thousand reported
CARRUTH, E.B. JR. TRUST, ET AL — gas, Cordele Development Corporation, Starr County, 81 thousand reported
HALL, J.F. -STATE -A- — gas, Oryx Energy Company, Starr County, 80 thousand reported
DE FLORES, M. S. — gas, Marquee Corporation, Starr County, 80 thousand reported
MARTINEZ -B- — gas, Samedan Oil Corporation, Starr County, 80 thousand reported
SLICK, T. B. ESTATE — gas, Fina Oil & Chemical Company, Starr County, 80 thousand reported
FROST NATIONAL BANK -A- — gas, Kerr-Mcgee Oil & Gas Onshore LP, Starr County, 80 thousand reported
BLOOMBERG, SAMUEL D. — gas, Smith Production Inc., Starr County, 79 thousand reported
SLICK ESTATE — gas, Breck Operating Corp., Starr County, 79 thousand reported
LEHR — gas, Americo Oil Company, Starr County, 79 thousand reported
GUTIERREZ NO. 3 — oil, Mortimer Production Company, Starr County, 79 thousand reported
M. E. EVANS ET AL UNIT — oil, BNP Petroleum Corporation, Starr County, 79 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.