Oil and gas leases in San Patricio County — page 4

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 4 of 7

LA ROSA — gas, Cimarron Engineering Corp., San Patricio County, 47 thousand reported
WELDER, J. F. UNIT — gas, Energen Resources Corporation, San Patricio County, 46 thousand reported
WELDER, J. F. — gas, Energen Resources Corporation, San Patricio County, 46 thousand reported
WHITE POINT DEVELOPMENT CO. — gas, Score Energy Company, San Patricio County, 46 thousand reported
J. H. HARVEY UNIT — gas, Magnum Producing & Operating Co., San Patricio County, 46 thousand reported
JONES, NEVADA — gas, C & E Operating, Inc., San Patricio County, 45 thousand reported
MCKAMEY B — gas, Oxy USA Inc., San Patricio County, 45 thousand reported
WELDER, MINNIE S. — gas, Abraxas Petroleum Corporation, San Patricio County, 45 thousand reported
LITTLE — oil, Hardwick Oil Company, San Patricio County, 45 thousand reported
WELDER, J. F. HEIRS — gas, Pearl, Bill H. Productions, Inc., San Patricio County, 44 thousand reported
DIX, THOMAS — oil, Quintana Pet. Corp., San Patricio County, 44 thousand reported
FISCHER, NELLIE I. — oil, Mo-Jon, Inc., San Patricio County, 44 thousand reported
WELDER "A" — gas, Sandalwood Oil & Gas, Inc., San Patricio County, 44 thousand reported
CRITES, EDA — oil, Oklahoma RB Operating Company, San Patricio County, 44 thousand reported
RAMBO, D. L. — oil, Pyramid Energy, Inc., San Patricio County, 44 thousand reported
WELDER HEIRS — gas, Oxy USA Inc., San Patricio County, 44 thousand reported
E. H. WELDER 'C' — oil, Mcgowan Working Partners, Inc., San Patricio County, 43 thousand reported
SCHINDLER, C. J. — oil, Pullin Lease Service, Inc., San Patricio County, 43 thousand reported
WELDER, J. F. — gas, Energen Resources Corporation, San Patricio County, 43 thousand reported
BURROWS, J. C. & J. S. — gas, Southern Bay Operating, L.L.C., San Patricio County, 43 thousand reported
WELCH — gas, American Shoreline, Inc., San Patricio County, 43 thousand reported
WELDER, R.H. — gas, Smith Production Inc., San Patricio County, 43 thousand reported
J. F. WELDER UNIT — gas, Energen Resources Corporation, San Patricio County, 43 thousand reported
STEINKRAUS — gas, Norco Oil & Gas, Inc., San Patricio County, 42 thousand reported
NELSON, A. E. — gas, Whiting Petroleum Corporation, San Patricio County, 42 thousand reported
ANDERSON FRENCH GAS UNIT — gas, Dreyfus, Louis Natural Gas Corp, San Patricio County, 42 thousand reported
BURROWS, J.C. & J. S. — gas, Aroc (Texas) Inc., San Patricio County, 42 thousand reported
FISCHER — oil, Harris Energy Services, LLC, San Patricio County, 42 thousand reported
FLINN-MAYO — oil, Frostwood Energy, LLC, San Patricio County, 42 thousand reported
EXXON SPEER FEE — gas, Chase Energy, Inc., San Patricio County, 41 thousand reported
WELDER EFH — oil, Welder Exploration & Prod., Inc., San Patricio County, 41 thousand reported
ASBURY — gas, Slawson Exploration Company, Inc, San Patricio County, 41 thousand reported
STATE TRACT 975 — oil, Mego Resources, LLC, San Patricio County, 41 thousand reported
WELDER WILDLIFE REFUGE — gas, Welder Exploration & Prod., Inc., San Patricio County, 41 thousand reported
WELDER, R.H. -B- — gas, Marathon Oil Company, San Patricio County, 41 thousand reported
WELDER, J.J. — oil, Marquee Corporation, San Patricio County, 40 thousand reported
WELDER "G" — gas, Scana Petroleum Resources, Inc., San Patricio County, 40 thousand reported
DUGAT — gas, National Energy Group, Inc., San Patricio County, 40 thousand reported
OLA MCCANN GAS UNIT — gas, Whiting Petroleum Corporation, San Patricio County, 40 thousand reported
MENGER, A. L. ET AL — gas, Frio Exploration Company, San Patricio County, 40 thousand reported
EXXON SPEER FEE — oil, Mugg, John D. JR., San Patricio County, 39 thousand reported
DIX — gas, Ellsworth, H. P. O&G Properties, San Patricio County, 39 thousand reported
BURROWS, J.C. & J.S. — oil, Texaco E & P Inc., San Patricio County, 39 thousand reported
STATE TRACT D GU — gas, Eog Resources, Inc., San Patricio County, 39 thousand reported
BROOKS GAS UNIT — gas, Marathon Oil Company, San Patricio County, 39 thousand reported
TEX. MED. PROF. BLDG. CORP. — gas, Samson Lone Star LP, San Patricio County, 38 thousand reported
WELDER, R. H. — gas, Smith Production Inc., San Patricio County, 38 thousand reported
GEORGE — gas, Mortimer Production Company, San Patricio County, 38 thousand reported
WELDER "A" — gas, Sandalwood Oil & Gas, Inc., San Patricio County, 38 thousand reported
MCBRIDE/RAGSDALE — oil, Fischer Operating Corporation, San Patricio County, 38 thousand reported
BAKER, KATHERINE K. — oil, Texacal, Inc., San Patricio County, 38 thousand reported
BAKER, KATHERINE K. — gas, Richman Petroleum Corp., San Patricio County, 37 thousand reported
KIESCHNICK — oil, Mogul Energy International, Inc., San Patricio County, 37 thousand reported
BLASCHKE-MAYO — oil, Fischer Operating Corporation, San Patricio County, 37 thousand reported
FLOERKE, ROY — gas, Null, W.M. Operations, Inc., San Patricio County, 37 thousand reported
HUNTER, FLORENCE — gas, Dinero Oil Corporation, San Patricio County, 37 thousand reported
PAPPY UNIT NO. 2 — oil, Sandalwood Exploration, L.P., San Patricio County, 37 thousand reported
WELDER EFH — oil, Welder Exploration & Prod., Inc., San Patricio County, 36 thousand reported
SINGLETON GAS UNIT — gas, Teamco Operating LLC, San Patricio County, 36 thousand reported
CAMPBELL, J. ESTATE — gas, Pearl, Bill H. Productions, Inc., San Patricio County, 36 thousand reported
DIMMICK — gas, Dinero Oil Corporation, San Patricio County, 35 thousand reported
SMITH, F.D. -C- — gas, Drillers Energy Search, Inc, San Patricio County, 35 thousand reported
FPC FLINN — oil, Fischer Operating Corporation, San Patricio County, 35 thousand reported
JONES, FRED B. ET AL UNIT — gas, Mobil Producing TX. & N.M. Inc., San Patricio County, 35 thousand reported
ST.NUECES BAY -ABC- GAS UNIT — gas, Tierra Mineral Development, L.C., San Patricio County, 34 thousand reported
DLF GAS UNIT — gas, Dreyfus, Louis Natural Gas Corp, San Patricio County, 34 thousand reported
SHELL "B" — gas, Michael Petroleum Corporation, San Patricio County, 34 thousand reported
COX — oil, Kebo Oil & Gas, Inc., San Patricio County, 34 thousand reported
MCKAMEY-MAUCH GAS UNIT — gas, Eog Resources, Inc., San Patricio County, 34 thousand reported
ADAMS, J.R. GAS UNIT — oil, Aransas DRLG & Workover Co Inc, San Patricio County, 34 thousand reported
NELSON, A. E. — oil, Whiting Petroleum Corporation, San Patricio County, 33 thousand reported
RAMSOWER, I. — gas, Mcguffin, Joe S. Inc., San Patricio County, 33 thousand reported
FOWLER — oil, Mortimer Production Company, San Patricio County, 33 thousand reported
WELDER, J. F. UNIT — oil, Texaco E & P Inc., San Patricio County, 33 thousand reported
MAYO-KOONCE UNIT — gas, Marathon Oil Company, San Patricio County, 32 thousand reported
BAKER, KATHERINE K. — oil, Pintex Operating Inc., San Patricio County, 32 thousand reported
BURROWS, J. C. & J. S. — oil, Texaco E & P Inc., San Patricio County, 32 thousand reported
HOLLAN, J. D. HEIRS — gas, Nu-San Energy, San Patricio County, 32 thousand reported
STATE TRACT 975 — oil, Mego Resources, LLC, San Patricio County, 32 thousand reported
DIMMICK, A. J. — oil, Fina Oil & Chemical Company, San Patricio County, 32 thousand reported
WELDER, R. H. -A- — oil, Smith Production Inc., San Patricio County, 31 thousand reported
PAINTER — oil, Harper Hefte, Inc., San Patricio County, 31 thousand reported
MAUCH, W.F. — oil, Esenjay Exploration, Inc, San Patricio County, 31 thousand reported
DUGAT — gas, Ampak Oil Company, San Patricio County, 31 thousand reported
SIMONS GAS UNIT -A- — gas, Global Natural Resources Corp., San Patricio County, 31 thousand reported
MAYO — oil, Harrigan Operating, LLC, San Patricio County, 31 thousand reported
HUNTER — gas, Anderson Oil Corporation, San Patricio County, 30 thousand reported
SCHMIDT, M. W. — gas, Eog Resources, Inc., San Patricio County, 30 thousand reported
BALDWIN, J. C. — oil, Fina Oil & Chemical Company, San Patricio County, 30 thousand reported
COFFIN — gas, Mcguffin, Joe S. Inc., San Patricio County, 30 thousand reported
CARMODY TRUST — gas, Rincon Petroleum Corporation, San Patricio County, 30 thousand reported
COGGIN, JR., DANIEL I., ET AL — gas, Chesnut Oil And Gas, Inc., San Patricio County, 30 thousand reported
MAYO, J. W., A/C 1 — oil, Exxon Corp., San Patricio County, 30 thousand reported
FISCHER, NELLIE I. — oil, Mo-Jon, Inc., San Patricio County, 30 thousand reported
SOLAR-FICKE — gas, Marathon Oil Company, San Patricio County, 30 thousand reported
HOLLON,GARLAND — oil, Hays, T.G. Petroleum Expl., Inc., San Patricio County, 29 thousand reported
GODWIN, J.W. — oil, Exxon Corp., San Patricio County, 29 thousand reported
WEBB, PATRICIA F. — gas, Allegro Investments, Inc., San Patricio County, 29 thousand reported
ADAMS, HAROLD W. — gas, Legacy Oil & Gas, Inc., San Patricio County, 29 thousand reported
BEYER — oil, Edge Petroleum Oper. Co., Inc., San Patricio County, 29 thousand reported
ROOTS, WALTER — oil, Cox Resources Corp., San Patricio County, 28 thousand reported
WELDER, MINNIE S. — gas, Mobil Producing TX. & N.M. Inc., San Patricio County, 28 thousand reported
ROOTS, WALTER — gas, Kriken Oil & Gas, Inc., San Patricio County, 28 thousand reported
DIMMICK — gas, Dinero Oil Corporation, San Patricio County, 28 thousand reported
DAWE — oil, Dreyfus, Louis Natural Gas Corp, San Patricio County, 28 thousand reported
COLE GU — gas, Marathon Oil Company, San Patricio County, 28 thousand reported
WELDER RANCH — gas, Smith Production Inc., San Patricio County, 27 thousand reported
IVEY, B.E. — oil, IV L.C., San Patricio County, 27 thousand reported
ROSSON, J. R. — oil, Harvey, Mike W. Oil & Gas, San Patricio County, 27 thousand reported
BEVLY, W. M. — oil, Mueller Engineering Corp., San Patricio County, 27 thousand reported
WILLMANN — gas, Mcguffin, Joe S. Inc., San Patricio County, 27 thousand reported
BALDWIN — gas, Olsen Energy Inc., San Patricio County, 27 thousand reported
KIRK GAS UNIT — gas, Hawthorne Oil And Gas Corp., San Patricio County, 26 thousand reported
L.C. HEINEMEYER — gas, Alta Mesa Services, LP, San Patricio County, 26 thousand reported
WHITE POINT OIL AND GAS — oil, Mego Resources, LLC, San Patricio County, 26 thousand reported
WELDER WILDLIFE REFUGE UNIT — oil, Mestena, Inc., San Patricio County, 26 thousand reported
WOMACK COUNTISS GAS UNIT — gas, Tierra Mineral Development, L.C., San Patricio County, 25 thousand reported
SMITH, N. R. — gas, Smith Production Inc., San Patricio County, 25 thousand reported
HAMON-HARVEY — oil, Magnum Producing & Operating Co., San Patricio County, 25 thousand reported
FOWLER (MCDONNOLD) — gas, Mcdonnold Operating, Inc., San Patricio County, 25 thousand reported
WELDER "G" — gas, Sandalwood Oil & Gas, Inc., San Patricio County, 25 thousand reported
OWEN, T. B. — gas, Norco Oil & Gas, Inc., San Patricio County, 25 thousand reported
WELDER, R.H. "A" A/C-1 — oil, Marathon Oil Company, San Patricio County, 24 thousand reported
ADAMS, H. W. — gas, Reserve Operating Corp., San Patricio County, 24 thousand reported
CHILTIPIN-STATE TRACT 2 — gas, Intercity Management Corp., San Patricio County, 24 thousand reported
WELDER G U — gas, Suemaur Expl. & Prod., LLC, San Patricio County, 24 thousand reported
MCCANN, OLA — gas, Whiting Petroleum Corporation, San Patricio County, 24 thousand reported
MCKAMEY — gas, Eog Resources, Inc., San Patricio County, 24 thousand reported
WELDER, J. F., UNIT — oil, Texaco E & P Inc., San Patricio County, 23 thousand reported
LANE, S. L. — gas, Energen Resources Corporation, San Patricio County, 23 thousand reported
FISCHER, NELLIE I. — oil, Mo-Jon, Inc., San Patricio County, 23 thousand reported
JONES, NEVADA — gas, American Exploration Company, San Patricio County, 23 thousand reported
WELDER HEIRS — gas, Suemaur Exploration, Inc., San Patricio County, 23 thousand reported
JARVIS-GREEN — gas, M. J. G., Inc., San Patricio County, 23 thousand reported
NELSON, A. E. — oil, Whiting Petroleum Corporation, San Patricio County, 23 thousand reported
BELL — oil, Royal Production Company, Inc., San Patricio County, 23 thousand reported
JONES, FRED B UNIT — oil, Abraxas Production Corporation, San Patricio County, 22 thousand reported
DRAPER- MATULA — gas, Trans-Pecos Resources, Inc., San Patricio County, 22 thousand reported
DUPRIE-FRENCH GU — gas, Eog Resources, Inc., San Patricio County, 22 thousand reported
MAYO OWEN GU — gas, Peoples Energy Prod.-TX, L.P., San Patricio County, 22 thousand reported
MCCAMPBELL TRUST GAS UNIT — oil, Esenjay Exploration, Inc, San Patricio County, 22 thousand reported
DUGAT UNIT — gas, National Energy Group, Inc., San Patricio County, 22 thousand reported
JONES, FRED B. — gas, Abraxas Petroleum Corporation, San Patricio County, 22 thousand reported
ZIMMERMAN — oil, Aransas DRLG & Workover Co Inc, San Patricio County, 22 thousand reported
TAFT PROP. — oil, South Central Texas Oil & Gas Co, San Patricio County, 22 thousand reported
PAPPY UNIT NO. 1 — oil, Sandalwood Exploration, L.P., San Patricio County, 22 thousand reported
PERSON, F. — oil, Reserve Operating Corp., San Patricio County, 22 thousand reported
SHELL, ALMA DAVIS — oil, Oklahoma RB Operating Company, San Patricio County, 22 thousand reported
ANGELITA GAS UNIT — gas, Dinero Oil Corporation, San Patricio County, 22 thousand reported
COGGIN, DANIEL I. JR. ETAL — oil, Geronimo Oil Co., San Patricio County, 22 thousand reported
WELDER — gas, Hazelett Oil, Inc., San Patricio County, 21 thousand reported
WELDER-GULLEY — oil, Mertz Energy LLC, San Patricio County, 21 thousand reported
BEVLY — oil, Welder Exploration & Prod., Inc., San Patricio County, 21 thousand reported
BROWN, THOMAS — gas, Sandalwood Oil & Gas, Inc., San Patricio County, 21 thousand reported
MAYO -B- — oil, Pearl, Bill H. Productions, Inc., San Patricio County, 21 thousand reported
JONES "H" — gas, Occidental Energy Company, Inc., San Patricio County, 21 thousand reported
SVADLENAK — gas, American Shoreline, Inc., San Patricio County, 21 thousand reported
WELDER, R. H. -B- — gas, Marathon Oil Company, San Patricio County, 21 thousand reported
MCKAMEY -B- — gas, Oxy USA Inc., San Patricio County, 21 thousand reported
MENGERS-MAEDGEN — gas, Alta Mesa Services, LP, San Patricio County, 21 thousand reported
MOELLER- BALDWIN UNIT — gas, American Shoreline, Inc., San Patricio County, 21 thousand reported
WELDER "A" — gas, Sandalwood Oil & Gas, Inc., San Patricio County, 21 thousand reported
WELDER J — gas, Consolidated Petro Ptnrs I, LLC, San Patricio County, 21 thousand reported
MAYO -C- — oil, Pearl, Bill H. Productions, Inc., San Patricio County, 21 thousand reported
MCBRIDE — gas, Slawson Exploration Company, Inc, San Patricio County, 21 thousand reported
WELDER, MINNIE S. — gas, Abraxas Petroleum Corporation, San Patricio County, 21 thousand reported
WELDER, MINNIE S. — gas, Abraxas Production Corporation, San Patricio County, 20 thousand reported
DUGAT — oil, National Energy Group, Inc., San Patricio County, 20 thousand reported
WELDER WILDLIFE FOUNDATION — oil, Little, Lou Operating Co., Inc., San Patricio County, 20 thousand reported
WELDER, E.H. "C" — gas, Marathon Oil Company, San Patricio County, 20 thousand reported
HUNTER, FLORENCE — oil, Dinero Oil Corporation, San Patricio County, 20 thousand reported
WELDER "H" — oil, Scana Petroleum Resources, Inc., San Patricio County, 20 thousand reported
ST. NUECES BAY -ABC- GAS UNIT — gas, Comstock Oil & Gas, Inc., San Patricio County, 20 thousand reported
WELDER, E.H. "C" — oil, Marathon Oil Company, San Patricio County, 20 thousand reported
ZIMMERMAN — gas, Hays, T.G. Petroleum Expl., Inc., San Patricio County, 19 thousand reported
MAYO, J. D. — gas, Carrizo Oil & Gas, Inc., San Patricio County, 19 thousand reported
WEBB — oil, Cox & Perkins Exploration, Inc., San Patricio County, 19 thousand reported
WELDER "J" — oil, Hazelett Oil Company, Inc., San Patricio County, 19 thousand reported
WELDER, MINNIE S. — gas, Abraxas Petroleum Corporation, San Patricio County, 19 thousand reported
R.H. WELDER -B- — gas, Dallas Petroleum Group, LLC, San Patricio County, 19 thousand reported
WELDER J — oil, Hazelett Oil Company, Inc., San Patricio County, 19 thousand reported
ADAMS, HAROLD W. — gas, Reserve Operating Corp., San Patricio County, 19 thousand reported
WELDER 'C' — gas, Sandalwood Oil & Gas, Inc., San Patricio County, 19 thousand reported
HUNT, JOHN W. JR. — gas, Hewitt, Robert J., San Patricio County, 19 thousand reported
CAMPBELL, J. ESTATE — oil, Dalport Oil Corporation, San Patricio County, 19 thousand reported
MAYO, J. W., A/C 2 — oil, Exxon Corp., San Patricio County, 18 thousand reported
WEBB, PATRICIA F. — gas, Allegro Investments, Inc., San Patricio County, 18 thousand reported
FLOERKE, ROY — oil, Null, W.M. Operations, Inc., San Patricio County, 18 thousand reported
TAFT PROP. SYNDICATE — oil, Killam Oil Company, San Patricio County, 18 thousand reported
HARVEY, J. H. UNIT — gas, Magnum Producing & Operating Co., San Patricio County, 18 thousand reported
LLD-MOONRAKER UNIT — gas, Poco LLC, San Patricio County, 18 thousand reported
WELDER GULLEY — oil, Mertz Energy LLC, San Patricio County, 18 thousand reported
FITE, L. E. — oil, Null, W.M. Operations, Inc., San Patricio County, 18 thousand reported
PORTLAND GAS UNIT "A" — gas, Bass Enterprises Production Co., San Patricio County, 18 thousand reported
PARKER, R.L. — gas, Powerline Energy Corp., San Patricio County, 18 thousand reported
ROOTS, W. L. — oil, Fox, Hewitt B., Inc., San Patricio County, 17 thousand reported
SOLAR — oil, American Shoreline, Inc., San Patricio County, 17 thousand reported
HUNT, JOHN W. JR — gas, Hewitt, Robert J., San Patricio County, 17 thousand reported
WELDER "C" — oil, Scana Petroleum Resources, Inc., San Patricio County, 17 thousand reported
WHITE POINT OIL & GAS — gas, Mego Resources, LLC, San Patricio County, 17 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.