Oil and gas leases in San Patricio County — page 3

San Patricio County, Texas has 1,284 oil and gas leases with production on file at the Railroad Commission. 440 of them are oil leases and 844 are gas leases. Between them they carry 1,899 wellbores. Reported volumes run from January 1993 to August 2026 and come to 16.0 million barrels of oil and 417.5 million Mcf of gas. 251 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 San Patricio County

How many oil and gas leases are in San Patricio County?: San Patricio County has 1,284 oil and gas leases with production reported to the Railroad Commission of Texas, as of August 2026.
How much oil and gas has San Patricio County produced?: Leases in San Patricio County have reported 16,042,912 barrels of oil (bbl) and 417,529,419 thousand cubic feet of gas (Mcf) to the Railroad Commission of Texas between January 1993 and August 2026.
How many operators are active in San Patricio County?: 251 operators file production returns for leases in San Patricio County.
How much are mineral rights in San Patricio County worth?: There is no single figure: what a mineral or royalty interest in San Patricio County is worth depends on the individual lease, its decline, and the share the owner holds. Each of the 1,284 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 3 of 7

WELDER RANCH — gas, Smith Production Inc., San Patricio County, 128 thousand reported
COX, B. W. — gas, I.T. Corporation, San Patricio County, 127 thousand reported
BRITTAIN-MAYO UNIT — gas, Sandalwood Oil & Gas, Inc., San Patricio County, 124 thousand reported
WELDER, R.H. -B- — oil, Marathon Oil Company, San Patricio County, 123 thousand reported
WELDER, R. H. "A" A/C-1 — gas, Marathon Oil Company, San Patricio County, 122 thousand reported
BARTOSH GAS UNIT — gas, Magnum Producing & Operating Co., San Patricio County, 122 thousand reported
WELDER, M. S. — gas, Abraxas Petroleum Corporation, San Patricio County, 122 thousand reported
WPOG STATE GU — gas, Sanchez-O'Brien Oil & Gas Corp., San Patricio County, 120 thousand reported
HARVEY — oil, Spur Operating Co., San Patricio County, 120 thousand reported
BARTOSH GAS UNIT — gas, PG&E Resources Company, San Patricio County, 119 thousand reported
WELDER J — oil, Sandalwood Oil & Gas, Inc., San Patricio County, 117 thousand reported
RACHAL, RANDOLPH B. — gas, North Shore Energy, L.L.C., San Patricio County, 117 thousand reported
BATOT — gas, Ceniza Petroleum, Inc., San Patricio County, 117 thousand reported
WELDER, J. F. UNIT — gas, Southern Bay Operating, L.L.C., San Patricio County, 116 thousand reported
SOLAR-FICKE — gas, Marathon Oil Company, San Patricio County, 116 thousand reported
EXXON SPEER FEE — gas, Mugg, John D. JR., San Patricio County, 116 thousand reported
KELLOGG GAS UNIT — gas, Marathon Oil Company, San Patricio County, 116 thousand reported
BOMER, E. T. — gas, Texaco E & P Inc., San Patricio County, 116 thousand reported
STEINKRAUS, F. — gas, Bettis, Boyle & Stovall, San Patricio County, 115 thousand reported
MENGERS, GUS O. — gas, L & F Drilling Co., Inc. (1), San Patricio County, 115 thousand reported
PERSON, FRIEDA UNIT — gas, Reserve Operating Corp., San Patricio County, 114 thousand reported
MCKAMEY — gas, Dominion Oklahoma Texas E&P, Inc, San Patricio County, 114 thousand reported
MAYO OWEN GU — gas, Peoples Energy Prod.-TX, L.P., San Patricio County, 114 thousand reported
FITE, L. E. — gas, Triple 'A' Energy, Inc., San Patricio County, 113 thousand reported
SMITH, M. C. — gas, Smith Production Inc., San Patricio County, 111 thousand reported
DAWE, LAFORGE & FLOERKE GAS UNIT — gas, Dreyfus, Louis Natural Gas Corp, San Patricio County, 111 thousand reported
HARTZENDORF, ERIC — gas, Reserve Operating Corp., San Patricio County, 111 thousand reported
MCCANN, OLA — gas, Whiting Petroleum Corporation, San Patricio County, 111 thousand reported
EAST, R. ET AL — gas, Harper Hefte, Inc., San Patricio County, 111 thousand reported
SMITH, N. R. — gas, Smith Production Inc., San Patricio County, 110 thousand reported
BOMER, E. T. — gas, Smith Production Inc., San Patricio County, 110 thousand reported
WHATLEY, J. B. — gas, Xeric Oil & Gas Corporation, San Patricio County, 109 thousand reported
WELDER, R.H. "B" — gas, Marathon Oil Company, San Patricio County, 109 thousand reported
WELDER, J.F. UNIT — gas, Southern Bay Operating, L.L.C., San Patricio County, 109 thousand reported
NELSON, A E — gas, Edge Petroleum Oper. Co., Inc., San Patricio County, 108 thousand reported
JOSTES — gas, Arrowhead Energy Exp., LLC, San Patricio County, 108 thousand reported
NUECES BAY STATE TRACT 707 — gas, Marathon Oil Company, San Patricio County, 106 thousand reported
WRIGHT — oil, North Central Oil Corp., San Patricio County, 106 thousand reported
WELDER "G" — gas, Consolidated Petro Ptnrs I, LLC, San Patricio County, 105 thousand reported
BALDWIN — gas, Olsen Energy Inc., San Patricio County, 104 thousand reported
ANDERSON-FRENCH GAS UNIT — gas, Dreyfus, Louis Natural Gas Corp, San Patricio County, 104 thousand reported
HOSKINSON "A" — gas, Eog Resources, Inc., San Patricio County, 104 thousand reported
WELDER "E" — gas, Scana Petroleum Resources, Inc., San Patricio County, 103 thousand reported
STATE TRACT 975 — oil, Mego Resources, LLC, San Patricio County, 103 thousand reported
GEORGE — oil, Mortimer Production Company, San Patricio County, 102 thousand reported
FLOERKE — gas, Slawson Exploration Company, Inc, San Patricio County, 102 thousand reported
WELDER, J.F. UNIT — gas, Texaco E & P Inc., San Patricio County, 101 thousand reported
WELDER, MINNIE S. — gas, Mobil Producing TX. & N.M. Inc., San Patricio County, 100 thousand reported
PERSON, FRIEDA UNIT — gas, Reserve Operating Corp., San Patricio County, 99 thousand reported
WELDER "A" — gas, Consolidated Petro Ptnrs I, LLC, San Patricio County, 98 thousand reported
HUNT, JOHN W. JR. — gas, O'Connor & Hewitt, Ltd., San Patricio County, 98 thousand reported
WELDER, E.H. "C" — gas, Marathon Oil Company, San Patricio County, 98 thousand reported
MATULA 1R — oil, Xog Operating LLC, San Patricio County, 97 thousand reported
COUNTISS, H. D. A/C 2 — gas, Mugg, John D. JR., San Patricio County, 97 thousand reported
WELDER "E" — gas, Scana Petroleum Resources, Inc., San Patricio County, 96 thousand reported
WOLTER — gas, Etoco, L.P., San Patricio County, 96 thousand reported
WELDER, MINNIE S. — gas, Mobil Producing TX. & N.M. Inc., San Patricio County, 95 thousand reported
MCKAMEY — gas, Dreyfus, Louis Natural Gas Corp, San Patricio County, 95 thousand reported
ROOTS, WALTER — gas, Kriken Oil & Gas, Inc., San Patricio County, 94 thousand reported
BARRETT-BERRY — gas, Hurd Enterprises, Ltd., San Patricio County, 93 thousand reported
MAYO-OWEN GU — gas, Peoples Energy Prod.-TX, L.P., San Patricio County, 93 thousand reported
WELDER, E. H. "C" — gas, Marathon Oil Company, San Patricio County, 92 thousand reported
WELDER, MINNIE S. — oil, Mobil Producing TX. & N.M. Inc., San Patricio County, 92 thousand reported
ROOTS — gas, Mission River Systems, Inc., San Patricio County, 92 thousand reported
WELDER, MINNIE S. — gas, Mobil Producing TX. & N.M. Inc., San Patricio County, 91 thousand reported
NUECES BAY STATE TRACT 688 — gas, Marathon Oil Company, San Patricio County, 90 thousand reported
ELLIS, R. R. — oil, Texaco E & P Inc., San Patricio County, 90 thousand reported
WELDER, MINNIE S. — gas, Abraxas Production Corporation, San Patricio County, 89 thousand reported
WELDER GG — gas, Sandalwood Exploration, L.P., San Patricio County, 89 thousand reported
MCKAMEY "B" — gas, Oxy USA Inc., San Patricio County, 87 thousand reported
SMITH, F.D. — gas, Drillers Energy Search, Inc, San Patricio County, 87 thousand reported
MAYO-OWEN G.U. — gas, Eog Resources, Inc., San Patricio County, 87 thousand reported
EGGERT, EDGAR H. — gas, Sortie, Inc., San Patricio County, 87 thousand reported
WELDER, JANE — gas, Swope Corp., San Patricio County, 87 thousand reported
WELDER, R.H. -B- LEASE — gas, Marathon Oil Company, San Patricio County, 86 thousand reported
CORPUS CHRISTI BANK & TRUST — gas, Magnum Producing & Operating Co., San Patricio County, 86 thousand reported
WELDER WILDLIFE FOUNDATION — gas, Little, Lou Operating Co., Inc., San Patricio County, 86 thousand reported
RAGSDALE — gas, Austin Resources Corporation, San Patricio County, 85 thousand reported
MCKEOWN, VERA — gas, Mo-Jon, Inc., San Patricio County, 85 thousand reported
BARTOSH — gas, PG&E Resources Company, San Patricio County, 84 thousand reported
BROOKS GAS UNIT — gas, Eog Resources, Inc., San Patricio County, 84 thousand reported
DIMMICK, A. J. — oil, Fina Oil & Chemical Company, San Patricio County, 83 thousand reported
FLAMENCO RACHAL — gas, Slawson Exploration Company, Inc, San Patricio County, 83 thousand reported
HAISLEY — gas, Matador Operating Company, San Patricio County, 83 thousand reported
WELDER, MINNIE S. — gas, Abraxas Petroleum Corporation, San Patricio County, 83 thousand reported
WELDER, E. H. -C- — gas, Marathon Oil Company, San Patricio County, 82 thousand reported
PARKER, C.C. -A- — gas, Texaco E & P Inc., San Patricio County, 82 thousand reported
SIMS-DREES UNIT NO. 1 — oil, Sandalwood Exploration, L.P., San Patricio County, 82 thousand reported
WELDER "H" — gas, Consolidated Petro Ptnrs I, LLC, San Patricio County, 82 thousand reported
PAPPY REVIVAL UNIT NO. 1 — oil, Sandalwood Exploration, L.P., San Patricio County, 82 thousand reported
WELDER RANCH — gas, Smith Production Inc., San Patricio County, 82 thousand reported
COLE GAS UNIT — gas, Marathon Oil Company, San Patricio County, 81 thousand reported
PORTLAND GAS UNIT -D- — gas, Bass Enterprises Production Co., San Patricio County, 81 thousand reported
PERSON — gas, Reserve Operating Corp., San Patricio County, 80 thousand reported
WELDER, J.F. HEIRS — oil, Smith Production Inc., San Patricio County, 79 thousand reported
FROST, R. A. — oil, Hughes, Dan A. Company, San Patricio County, 79 thousand reported
PERSON, FRIEDA UNIT — gas, Chisholm Oil & Gas, LC, San Patricio County, 79 thousand reported
HUNT, JEFFERY DAVIS — gas, Dreyfus, Louis Natural Gas Corp, San Patricio County, 79 thousand reported
WELDER "J" — gas, Sandalwood Oil & Gas, Inc., San Patricio County, 78 thousand reported
MILLER, C.A. — oil, Brown, George R. Partnership,The, San Patricio County, 77 thousand reported
SIMS-DREES UNIT NO. 1 — oil, Sandalwood Exploration, L.P., San Patricio County, 77 thousand reported
FISCHER, ET AL — gas, Suemaur Expl. & Prod., LLC, San Patricio County, 77 thousand reported
NELSON, A E — gas, Whiting Oil And Gas Corporation, San Patricio County, 77 thousand reported
JOSTES — oil, Mortimer Production Company, San Patricio County, 76 thousand reported
WELDER-GULLEY — gas, Mertz Energy LLC, San Patricio County, 75 thousand reported
FLOERKE — gas, Slawson Exploration Company, Inc, San Patricio County, 74 thousand reported
LITTLE VRANA — gas, Alta Mesa Services, LP, San Patricio County, 73 thousand reported
SOLAR-FICKE — gas, Marathon Oil Company, San Patricio County, 73 thousand reported
EXXON SPEER FEE — gas, Mugg, John D. JR., San Patricio County, 73 thousand reported
MOELLER — gas, American Shoreline, Inc., San Patricio County, 73 thousand reported
WELDER, R. H. — oil, Smith Production Inc., San Patricio County, 73 thousand reported
BROWN, C. S. — gas, Frio Exploration Company, San Patricio County, 72 thousand reported
WELDER WILDLIFE REFUGE UNIT — gas, Mestena, Inc., San Patricio County, 72 thousand reported
PARKER C. C. "A" — gas, Texaco E & P Inc., San Patricio County, 72 thousand reported
WELDER "J" — gas, Sandalwood Oil & Gas, Inc., San Patricio County, 72 thousand reported
MAYO — oil, Frostwood Energy, LLC, San Patricio County, 71 thousand reported
LANE — gas, Southern Bay Operating, L.L.C., San Patricio County, 71 thousand reported
WELDER, E.H. -E- — gas, Marathon Oil Company, San Patricio County, 71 thousand reported
STATE TRACT 683 — oil, Abraxas Production Corporation, San Patricio County, 71 thousand reported
HUNTER — gas, Anderson Oil Ltd., San Patricio County, 71 thousand reported
BROWN, C. S. — oil, Carter Exploration Company, San Patricio County, 70 thousand reported
HAISLEY — gas, Sandel Operating Company, San Patricio County, 70 thousand reported
WELDER, R. H. — gas, Smith Production Inc., San Patricio County, 69 thousand reported
MOC-WELDER "C" — gas, Sandalwood Oil & Gas, Inc., San Patricio County, 69 thousand reported
J. R. KIRK GU — gas, Mueller Engineering Corp., San Patricio County, 69 thousand reported
WELDER, R.H. "B" — oil, Sydri Operating, LLC, San Patricio County, 69 thousand reported
HUNTER — gas, Anderson Oil Ltd., San Patricio County, 68 thousand reported
PARKER, C. C. -A- — gas, Texaco E & P Inc., San Patricio County, 68 thousand reported
BERRY "B" — gas, Aurora Production Company, San Patricio County, 68 thousand reported
NELSON, A.E. — gas, Whiting Oil And Gas Corporation, San Patricio County, 68 thousand reported
WELDER, MINNIE S. — oil, Mobil Producing TX. & N.M. Inc., San Patricio County, 66 thousand reported
LLD-MOONRAKER UNIT — gas, Poco LLC, San Patricio County, 65 thousand reported
SCHUBERT — gas, Bandera Exploration Company, San Patricio County, 65 thousand reported
CHILTIPIN STATE TRACT #3 — oil, South Central Texas Oil & Gas Co, San Patricio County, 65 thousand reported
WELDER, J. F. — gas, Southern Bay Operating, L.L.C., San Patricio County, 64 thousand reported
WELDER, J.F. UNIT — gas, Texaco E & P Inc., San Patricio County, 64 thousand reported
WELDER, MINNIE S. — gas, Abraxas Production Corporation, San Patricio County, 64 thousand reported
LANE, S. L. — gas, Smith Production Inc., San Patricio County, 64 thousand reported
MAYO, J. W. A/C 1 — oil, Exxon Corp., San Patricio County, 64 thousand reported
OELSCHLEGEL, FRANK JR. ET AL — oil, Hughes, Dan A. Company, San Patricio County, 64 thousand reported
BEUTNAGEL — gas, Cimarron Engineering, LLC, San Patricio County, 64 thousand reported
WELDER, E.H. -C- — oil, Marathon Oil Company, San Patricio County, 64 thousand reported
JOSTES — oil, DML Exploration, Inc., San Patricio County, 63 thousand reported
FLOERKE — oil, L & R Petroleum, San Patricio County, 63 thousand reported
BAPTIST FOUNDATION OF TEX, ET AL — oil, Sandalwood Exploration, L.P., San Patricio County, 63 thousand reported
KIRK GAS UNIT — gas, Hawthorne Oil And Gas Corp., San Patricio County, 62 thousand reported
WELDER, E. H. "C" — oil, Eog Resources, Inc., San Patricio County, 61 thousand reported
ROSSON, VIBORA — gas, Slawson Exploration Company, Inc, San Patricio County, 61 thousand reported
BALDWIN -A- — gas, Olsen Energy Inc., San Patricio County, 60 thousand reported
WELDER, J. F., UNIT — oil, Texaco E & P Inc., San Patricio County, 60 thousand reported
MENGERS-MAEDGEN — gas, Alta Mesa Services, LP, San Patricio County, 60 thousand reported
AQUILA-SVADLENAK — gas, Slawson Exploration Company, Inc, San Patricio County, 60 thousand reported
BLACKBERRY — gas, Hurd Enterprises, Ltd., San Patricio County, 58 thousand reported
WELDER, R.H. "A" — gas, Marathon Oil Company, San Patricio County, 58 thousand reported
WELDER "C" — gas, Sandalwood Oil & Gas, Inc., San Patricio County, 58 thousand reported
WELDER "G" — gas, Scana Petroleum Resources, Inc., San Patricio County, 57 thousand reported
WELDER, MINNIE S. — gas, Abraxas Petroleum Corporation, San Patricio County, 57 thousand reported
ROOTS-DEEP — oil, Dalport Oil Corporation, San Patricio County, 57 thousand reported
J. H. HARVEY UNIT — oil, Magnum Producing & Operating Co., San Patricio County, 56 thousand reported
WELDER, R.H. "B" — gas, Marathon Oil Company, San Patricio County, 56 thousand reported
WELDER-FORD "A" — gas, Sandalwood Oil & Gas, Inc., San Patricio County, 56 thousand reported
WELDER, MINNIE S. — gas, Abraxas Production Corporation, San Patricio County, 56 thousand reported
WELDER, J. F. HEIRS — gas, Pearl, Bill H. Productions, Inc., San Patricio County, 56 thousand reported
WELDER, EFH — gas, Welder Exploration & Prod., Inc., San Patricio County, 56 thousand reported
KIRK GAS UNIT — gas, San Patricio Corporation, San Patricio County, 56 thousand reported
MCKAMEY B-4 GAS UNIT — gas, Oxy USA Inc., San Patricio County, 56 thousand reported
BALDWIN — gas, Olsen Energy Inc., San Patricio County, 55 thousand reported
MCGLOIN — gas, Dirnett, Inc., San Patricio County, 55 thousand reported
HUNT, JEFFERY DAVIS — oil, Xto Energy Inc., San Patricio County, 55 thousand reported
SCHUSTER — gas, Slawson Exploration Company, Inc, San Patricio County, 55 thousand reported
DUNGAN-KEY TRUST — oil, Wapiti Operating, LLC, San Patricio County, 54 thousand reported
SMOTHERS-ODEM — gas, Sandalwood Oil & Gas, Inc., San Patricio County, 54 thousand reported
MCCAMPBELL, W. G., JR. ET AL — oil, Fina Oil & Chemical Company, San Patricio County, 54 thousand reported
WELDER - FORD "A" — gas, Sandalwood Oil & Gas, Inc., San Patricio County, 54 thousand reported
PORTLAND GAS UNIT -D- — gas, Bass Enterprises Production Co., San Patricio County, 54 thousand reported
WINSAUER — gas, DML Exploration, Inc., San Patricio County, 53 thousand reported
MCKEOWN, VERA — gas, Mo-Jon, Inc., San Patricio County, 53 thousand reported
WELDER, J.F. UNIT — gas, Texaco E & P Inc., San Patricio County, 52 thousand reported
WELDER, EFH — gas, Welder Exploration & Prod., Inc., San Patricio County, 52 thousand reported
FOWLER — gas, Mortimer Production Company, San Patricio County, 51 thousand reported
WELDER "G" — gas, Scana Petroleum Resources, Inc., San Patricio County, 51 thousand reported
VANECEK G.U. — gas, Magnum Producing, LP, San Patricio County, 51 thousand reported
SOLAR — gas, American Shoreline, Inc., San Patricio County, 51 thousand reported
SMITH, F.D. — gas, Drillers Energy Search, Inc, San Patricio County, 50 thousand reported
HUNTER — gas, Anderson Oil Ltd., San Patricio County, 50 thousand reported
BAKER, KATHERINE — oil, Hardwick Oil Company, San Patricio County, 50 thousand reported
EXXON SPEER FEE — oil, Mugg, John D. JR., San Patricio County, 50 thousand reported
SMITH, M. C. — oil, Texaco E & P Inc., San Patricio County, 50 thousand reported
WELDER, MINNIE S. — gas, Abraxas Petroleum Corporation, San Patricio County, 49 thousand reported
WHITE POINT — gas, Modern Exploration, Inc., San Patricio County, 49 thousand reported
LANE, S.L. — gas, Smith Production Inc., San Patricio County, 49 thousand reported
ELLIS, R. R. — gas, Smith Production Inc., San Patricio County, 49 thousand reported
KEETON FRIO UNIT — oil, Dinero Oil Corporation, San Patricio County, 49 thousand reported
BRAD FLOERKE UNIT — gas, American Shoreline, Inc., San Patricio County, 48 thousand reported
WELDER "G" — gas, Consolidated Petro Ptnrs I, LLC, San Patricio County, 48 thousand reported
SMITH, N. R. — oil, Texaco E & P Inc., San Patricio County, 48 thousand reported
WELDER, WEIL — gas, Kebo Oil & Gas, Inc., San Patricio County, 48 thousand reported
WELDER, MINNIE S. — oil, Mobil Producing TX. & N.M. Inc., San Patricio County, 48 thousand reported
STARK — gas, Virtex Petroleum Company, Inc., San Patricio County, 47 thousand reported
BARTOSH — gas, PG&E Resources Company, San Patricio County, 47 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.