Oil and gas leases in Starr County — page 15

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 15 of 17

  • DE GARZA, C.L. — gas, Oryx Energy Company, Starr County, 12 thousand reported
  • CNG ET AL UNIT — gas, BNP Petroleum Corporation, Starr County, 12 thousand reported
  • BRANNAN — gas, Milagro Exploration, LLC, Starr County, 12 thousand reported
  • RODRIGUEZ, T. — gas, Wagner, Duer & Co., Starr County, 12 thousand reported
  • CAMERON 487 — gas, Texas Independent Explor., Inc., Starr County, 12 thousand reported
  • DE FLORES, M. S. — gas, Tasca Exploration Company, Starr County, 12 thousand reported
  • SMITH, R.G. GAS UNIT — gas, Wagner, Duer & Co., Starr County, 12 thousand reported
  • DAVENPORT, O. H. HEIRS — oil, Fina Oil & Chemical Company, Starr County, 12 thousand reported
  • DE LOPEZ, C.V.-B- — oil, Kerr-Mcgee Oil & Gas Onshore LLC, Starr County, 12 thousand reported
  • SLICK, T.B. STATE "H"536 — gas, Forest Oil Corporation, Starr County, 12 thousand reported
  • SEMMES — gas, Legend Natural Gas III, LP, Starr County, 11 thousand reported
  • RICABY, S. B., ESTATE -D- — gas, J. & M. Well Service, Inc., Starr County, 11 thousand reported
  • I. V. MONTALVO 'C' — gas, Killam Oil Co., Ltd., Starr County, 11 thousand reported
  • GUERRA BROTHERS G. U. — oil, Texas Independent Explor., Inc., Starr County, 11 thousand reported
  • SAMANO 'C' — gas, El Paso Production Oil & Gas Co., Starr County, 11 thousand reported
  • NILO SHALLOW A GU — gas, Enron Oil & Gas Company, Starr County, 11 thousand reported
  • SOUTHWEST FARM & RANCH — gas, Fina Oil & Chemical Company, Starr County, 11 thousand reported
  • DIAZ "A" — oil, TNT Petroleum Company, Inc., Starr County, 11 thousand reported
  • SLICK, T. B. ESTATE — oil, Fina Oil & Chemical Company, Starr County, 11 thousand reported
  • FARIAS UNIT — gas, Neuhaus, V. F. Properties, Inc., Starr County, 11 thousand reported
  • STARR #1 — gas, Legacy Corporation, The, Starr County, 11 thousand reported
  • LA BRISA RANCH/STATE 542 — oil, Trap Rock Oil, Ltd., Starr County, 11 thousand reported
  • SAMANO — gas, El Paso Production Oil & Gas Co., Starr County, 11 thousand reported
  • BOSTON TEXAS LAND TRUST #1 — gas, Legacy Corporation, The, Starr County, 11 thousand reported
  • FLORES-HENSLEY — oil, Oryx Energy Company, Starr County, 11 thousand reported
  • TEXACO FEE - GUERRA "D" #1 — oil, Linder Oil Company,A Partnership, Starr County, 11 thousand reported
  • LA BRISA RANCH / STATE 542 — gas, Trap Rock Oil, Ltd., Starr County, 11 thousand reported
  • FLORES UNIT — oil, White Oak Operating Company LLC, Starr County, 11 thousand reported
  • MONTALVO, N.R. — gas, Kerr-Mcgee Oil & Gas Onshore LLC, Starr County, 10 thousand reported
  • FLORES-HENSLEY — gas, Oryx Energy Company, Starr County, 10 thousand reported
  • CAMERON — gas, Cameron, Paul E., JR., Inc., Starr County, 10 thousand reported
  • MARTINEZ -B- — gas, Samedan Oil Corporation, Starr County, 10 thousand reported
  • DE GARZA, C. L. — gas, Oryx Energy Company, Starr County, 10 thousand reported
  • SLICK, T. B., ESTATE — oil, Fina Oil & Chemical Company, Starr County, 10 thousand reported
  • FROST NATIONAL BANK -A- — gas, Kerr-Mcgee Oil & Gas Onshore LP, Starr County, 10 thousand reported
  • GARCIA L&L CO. "C" — gas, Oryx Energy Company, Starr County, 10 thousand reported
  • EL NEGRO RANCH — oil, Maddux, Elizabeth H., Starr County, 10 thousand reported
  • GARZA — gas, Toma Oil & Gas, Inc., Starr County, 10 thousand reported
  • BLOOMBERG, SAMUEL D. — gas, Smith Production Inc., Starr County, 10 thousand reported
  • HEARD, J.F.B. — gas, Integrated Operating Corporation, Starr County, 10 thousand reported
  • GARCIA, L&L -C- — gas, Oryx Energy Company, Starr County, 10 thousand reported
  • BLOOMBERG, SAMUEL D. — gas, Smith Production Inc., Starr County, 10 thousand reported
  • YTURRIA L & L CO. -B- — gas, Oryx Energy Company, Starr County, 10 thousand reported
  • DE GARCIA, B. G. — gas, Kerr-Mcgee Oil & Gas Onshore LP, Starr County, 10 thousand reported
  • CAMERON — oil, Cameron, Paul E., JR., Inc., Starr County, 10 thousand reported
  • I.V. MONTALVO 'C' — gas, Killam Oil Co., Ltd., Starr County, 10 thousand reported
  • DAVENPORT "B" — gas, Texas Independent Explor., Inc., Starr County, 10 thousand reported
  • MUSTON — oil, Texas Fuel Company, Starr County, 10 thousand reported
  • MONTALVO, N. R. — oil, Exxon Corp., Starr County, 10 thousand reported
  • MARTINEZ, F. F. — oil, Amax Oil & Gas Inc., Starr County, 10 thousand reported
  • CAMERON — gas, Cameron, Paul E., JR., Inc., Starr County, 10 thousand reported
  • DIAZ "A" — gas, Escudo Oil & Gas, LLC, Starr County, 10 thousand reported
  • GARZA-MONTALVO GAS UNIT — gas, Oryx Energy Company, Starr County, 10 thousand reported
  • STATE SLICK -C- — oil, Fina Oil & Chemical Company, Starr County, 10 thousand reported
  • SAENZ — gas, Acock/Anaqua Operating Co., LP, Starr County, 10 thousand reported
  • HEARD — gas, Rincon Gas, Inc., Starr County, 9 thousand reported
  • STATE OF TEXAS — gas, Total E&P USA, Inc., Starr County, 9 thousand reported
  • GUERRA, R. A. — gas, Amax Oil & Gas Inc., Starr County, 9 thousand reported
  • CARRUTH, E.B. JR. TRUST ET AL — oil, Cordele Development Corporation, Starr County, 9 thousand reported
  • SLICK ESTATE -C- — gas, Kerr-Mcgee Oil & Gas Onshore LLC, Starr County, 9 thousand reported
  • CAMERON-STATE — gas, Cameron, Paul E., JR., Inc., Starr County, 9 thousand reported
  • GARCIA, M. M. "D" — gas, Conoco Inc., Starr County, 9 thousand reported
  • STATE RIVER-SANTA MARGARITA — gas, Henderson Petroleum Corporation, Starr County, 9 thousand reported
  • AUSTIN, CARLOS A. — gas, L & B Oil And Gas Equipment, LLC, Starr County, 9 thousand reported
  • SEABURY, F.W. EST — gas, J. & M. Well Service, Inc., Starr County, 9 thousand reported
  • DE GARCIA, B.G. — oil, Oryx Energy Company, Starr County, 9 thousand reported
  • CAMERON — gas, Osborn,W.B. Oil & Gas Operations, Starr County, 9 thousand reported
  • TRUSTEE #2 — oil, Star Of Texas Energy SRVS, Inc., Starr County, 9 thousand reported
  • GUERRA/STATE G.U — gas, Wagner, Duer & Co., Starr County, 9 thousand reported
  • ELOY — oil, Tepee Petroleum Co., Inc., Starr County, 9 thousand reported
  • GARZA, A.M. -STATE — gas, Shell Western E&P Inc., Starr County, 9 thousand reported
  • EDMUNDS, A.K. — gas, Starco Exploration, Inc., Starr County, 9 thousand reported
  • GARCIA M.M. "D' — oil, Glenn, Wayne E. & Assoc., Inc., Starr County, 9 thousand reported
  • GUERRA — gas, Milagro Exploration, LLC, Starr County, 9 thousand reported
  • STATE OF TEXAS SLICK — gas, Howard Exploration, Inc., Starr County, 9 thousand reported
  • GARCIA, R. -C- UNIT #7 — oil, Oryx Energy Company, Starr County, 9 thousand reported
  • PENA, NICEFORO JR. NO. 1 — oil, Midpar L.P., Starr County, 9 thousand reported
  • COATES ESTATE — oil, Amax Oil & Gas Inc., Starr County, 9 thousand reported
  • LA BRISA 91 — oil, Texas Independent Explor., Inc., Starr County, 9 thousand reported
  • T. B. SLICK ESTATE "A" 485 — oil, Hilcorp Energy Company, Starr County, 9 thousand reported
  • MARGO "A" — gas, Newgulf Petroleum, LLC, Starr County, 9 thousand reported
  • YTURRIA L&L — gas, L & B Oil And Gas Equipment, LLC, Starr County, 9 thousand reported
  • MCGILL BROS — oil, Exxon Corp., Starr County, 9 thousand reported
  • SALINAS, FAUSTO ET AL — gas, Smith Production Inc., Starr County, 9 thousand reported
  • SLICK, T. B. ESTATE -B- 266 — oil, Kerr-Mcgee Oil & Gas Onshore LLC, Starr County, 9 thousand reported
  • NILO SHALLOW A GU — gas, Enron Oil & Gas Company, Starr County, 9 thousand reported
  • SEMMES TRUST, ET AL "906" — oil, Conoco Inc., Starr County, 9 thousand reported
  • DIAZ — oil, Touchstone Resources USA, Inc., Starr County, 8 thousand reported
  • FLORES, J. Z. — oil, Dinero Oil Corporation, Starr County, 8 thousand reported
  • VILLARREAL — oil, Energy Development Corp., Starr County, 8 thousand reported
  • SLICK, T. B. EST. -A- 229 — oil, Kerr-Mcgee Oil & Gas Onshore LLC, Starr County, 8 thousand reported
  • BENTSEN BROS. — oil, Headington Oil Company, Starr County, 8 thousand reported
  • DEFLORES, M. S. — oil, El Paso Production Oil & Gas Co., Starr County, 8 thousand reported
  • MUNOZ G. U. — gas, Mohican Oil & Gas, L.L.C., Starr County, 8 thousand reported
  • MONTALVO, N. R. — gas, Reh Energy, Inc., Starr County, 8 thousand reported
  • MCGILL BROS. — gas, Exxon Corp., Starr County, 8 thousand reported
  • EDMUNDS, A. K. — gas, Starco Exploration, Inc., Starr County, 8 thousand reported
  • VILLARREAL — gas, Energy Development Corp., Starr County, 8 thousand reported
  • MCGILL BROS. — oil, Exxon Corp., Starr County, 8 thousand reported
  • HALL, J. F. STATE — oil, Kerr-Mcgee Oil & Gas Onshore LP, Starr County, 8 thousand reported
  • FROST NATIONAL BANK -A- — gas, Kerr-Mcgee Oil & Gas Onshore LLC, Starr County, 8 thousand reported
  • MONTALVO, N. R. — gas, Exxon Corp., Starr County, 8 thousand reported
  • GUERRA, A "A" — oil, Wynn-Crosby Energy, Inc., Starr County, 8 thousand reported
  • GARCIA L & L "C" — oil, Kerr-Mcgee Oil & Gas Onshore LLC, Starr County, 8 thousand reported
  • FINA-CONOCO FEE — oil, Fina Oil & Chemical Company, Starr County, 8 thousand reported
  • MCKINNEY, MRS. AMANDA — oil, Oryx Energy Company, Starr County, 8 thousand reported
  • SLICK, T. B. ESTATE — gas, Totalfinaelf E&P USA Inc, Starr County, 8 thousand reported
  • COATES — gas, Tri-C Resources, Inc., Starr County, 7 thousand reported
  • STATE OF TEXAS — gas, Hanson Production Company, Starr County, 7 thousand reported
  • I.V. MONTALVO 'C' — oil, Killam Oil Co., Ltd., Starr County, 7 thousand reported
  • SPEER, GEO. H.-STATE -B- — oil, Oryx Energy Company, Starr County, 7 thousand reported
  • SEMMES TRUST, ET AL "906" — gas, Kerr-Mcgee Oil & Gas Onshore LLC, Starr County, 7 thousand reported
  • COATES, GEO. H. — oil, Oryx Energy Company, Starr County, 7 thousand reported
  • PISTOL HILL 2 — oil, Texas Independent Explor Ltd., Starr County, 7 thousand reported
  • EAST, ALICE K., MRS. -B- — oil, Exxon Corp., Starr County, 7 thousand reported
  • MCGILL BROS. — gas, Exxon Corp., Starr County, 7 thousand reported
  • CARDENAS, R. R. — gas, Oryx Energy Company, Starr County, 7 thousand reported
  • SLICK - STATE VICKSBURG UNIT B — oil, Hilcorp Energy Company, Starr County, 7 thousand reported
  • MONTALVO, N. R. — oil, Triad O&G, LLC, Starr County, 7 thousand reported
  • I.V. MONTALVO 'A' — oil, Killam Oil Co., Ltd., Starr County, 7 thousand reported
  • FROST NATIONAL BANK -A- — gas, Kerr-Mcgee Oil & Gas Onshore LP, Starr County, 7 thousand reported
  • LA BRISA LAND & CATTLE — gas, Texas Independent Explor., Inc., Starr County, 7 thousand reported
  • GARCIA L&L CO. — gas, Smith Production Inc., Starr County, 7 thousand reported
  • FINA-CONOCO FEE — gas, Fina Oil & Chemical Company, Starr County, 7 thousand reported
  • GARCIA, J., DR. -B- — oil, Energy Development Corp., Starr County, 7 thousand reported
  • GUZMAN — gas, Strata Operating, Inc., Starr County, 7 thousand reported
  • SAN ROMAN,E (HCLY) WTRFLD UNT — oil, Exxon Corp., Starr County, 6 thousand reported
  • HALL, C. M. -A- — gas, Kerr-Mcgee Oil & Gas Onshore LLC, Starr County, 6 thousand reported
  • YTURRIA L & L -B- — oil, Oryx Energy Company, Starr County, 6 thousand reported
  • F. NYE GAS UNIT — gas, Transtexas Gas Corporation, Starr County, 6 thousand reported
  • SLICK, T. B. ESTATE B1 — gas, Totalfinaelf E&P USA Inc, Starr County, 6 thousand reported
  • HINOJOSA, MEDARDO B ROY A/C 2 — gas, White Oak Operating Company LLC, Starr County, 6 thousand reported
  • FARIAS, N.A. — oil, Peoples Energy Prod.-TX, L.P., Starr County, 6 thousand reported
  • HEARD, J.F.B. — oil, Rincon Gas, Inc., Starr County, 6 thousand reported
  • WARDNER 1-C — gas, Sarrita Oil Co., Inc., Starr County, 6 thousand reported
  • VILLARREAL — gas, Newman Operating Company, Starr County, 6 thousand reported
  • BASS — oil, Dugger, Glenn, Starr County, 6 thousand reported
  • BENTSEN TRACT I — gas, Samson Lone Star LP, Starr County, 6 thousand reported
  • GUERRA SHARE 180-A — gas, Texaco E & P Inc., Starr County, 6 thousand reported
  • BAIRD, L. M. — gas, J. & M. Well Service, Inc., Starr County, 6 thousand reported
  • I.V. MONTALVO 'C' — gas, Killam Oil Co., Ltd., Starr County, 6 thousand reported
  • GUERRA, F.B. "F" — gas, Lindenmuth & Associates, Inc., Starr County, 6 thousand reported
  • FLORES-HENSLEY — gas, Oryx Energy Company, Starr County, 6 thousand reported
  • SLICK, T.B. EST. -A- 265 — oil, Hilcorp Energy Company, Starr County, 6 thousand reported
  • R.G. SMITH GAS UNIT — gas, Mortimer Exploration Company, Starr County, 6 thousand reported
  • SALINAS, NICOLAS G. — gas, Amcole Energy Corp., Starr County, 5 thousand reported
  • DE GARCIA, B. G. — gas, Oryx Energy Company, Starr County, 5 thousand reported
  • SLICK — oil, Texas Independent Explor., Inc., Starr County, 5 thousand reported
  • SLICK, T. B. ESTATE — gas, Fina Oil & Chemical Company, Starr County, 5 thousand reported
  • DAVENPORT, O. H. HEIRS — gas, Fina Oil & Chemical Company, Starr County, 5 thousand reported
  • SALINAS, ET AL — gas, Hurd Enterprises, Ltd., Starr County, 5 thousand reported
  • SLICK, T.B. "B" — gas, Conoco Inc., Starr County, 5 thousand reported
  • MCKINNEY, AMANDA — gas, Kerr-Mcgee Oil & Gas Onshore LP, Starr County, 5 thousand reported
  • CANALES — gas, Bluestone Natural Res. II, LLC, Starr County, 5 thousand reported
  • HERMANN, A. G. GAS UNIT — oil, Kerr-Mcgee Oil & Gas Onshore LLC, Starr County, 5 thousand reported
  • LA BRISA LAND & CATTLE CO. — oil, Texas Independent Explor., Inc., Starr County, 5 thousand reported
  • SEMMES TRUST ET AL 906 — oil, Kerr-Mcgee Oil & Gas Onshore LLC, Starr County, 5 thousand reported
  • SLICK, T. B. EST. B-534 — gas, Conocophillips Company, Starr County, 5 thousand reported
  • MCGILL BROS. — oil, Exxon Corp., Starr County, 5 thousand reported
  • DE LOPEZ, C.V. -A- — gas, Omimex Petroleum, Inc., Starr County, 5 thousand reported
  • FROST NATIONAL BANK -A- — oil, Kerr-Mcgee Oil & Gas Onshore LP, Starr County, 5 thousand reported
  • MONTALVO HEIRS 'B' — oil, Killam Oil Co., Ltd., Starr County, 5 thousand reported
  • DAVENPORT -A- — gas, Texas Independent Explor., Inc., Starr County, 5 thousand reported
  • TEXACO FEE — oil, Linder Oil Company,A Partnership, Starr County, 5 thousand reported
  • BENTSON BROTHERS — gas, El Paso Production Oil & Gas Co., Starr County, 5 thousand reported
  • GEO. H. SPEER - STATE 'B' — oil, Killam Oil Co., Ltd., Starr County, 5 thousand reported
  • LA BRISA RANCH — oil, Pyle Petroleum, Starr County, 5 thousand reported
  • SLICK, T. B. ESTATE "A" — gas, Kerr-Mcgee Oil & Gas Onshore LLC, Starr County, 5 thousand reported
  • HEARD, J. F. B. — oil, Integrated Operating Corporation, Starr County, 5 thousand reported
  • LAUREL, C. — gas, Oryx Energy Company, Starr County, 5 thousand reported
  • D.D. OIL CO. -B- — gas, CM TX Production, LLC, Starr County, 5 thousand reported
  • GARZA-RIVAS UNIT — gas, D.Y. Exploration, Inc., Starr County, 5 thousand reported
  • COATES 553 — oil, Samson Lone Star LP, Starr County, 5 thousand reported
  • FUENTES, J. R. ET AL — gas, White Oak Operating Company LLC, Starr County, 5 thousand reported
  • MCGILL BROS. — gas, Exxon Corp., Starr County, 5 thousand reported
  • SLICK T B EST A 527 — gas, Kerr-Mcgee Oil & Gas Onshore LLC, Starr County, 4 thousand reported
  • JUAREZ, MIGUEL — gas, Exxon Mobil Corporation, Starr County, 4 thousand reported
  • I.V. MONTALVO 'C' — oil, Killam Oil Co., Ltd., Starr County, 4 thousand reported
  • FLORES UNIT — oil, Merit Energy Company, Starr County, 4 thousand reported
  • GARCIA L&L CO. — gas, Smith Production Inc., Starr County, 4 thousand reported
  • PARKS, W. S., ET AL — gas, J. & M. Well Service, Inc., Starr County, 4 thousand reported
  • PENA, S. G. — oil, D.Y. Exploration, Inc., Starr County, 4 thousand reported
  • YTURRIA, HENSLEY — oil, Carrizo Oil & Gas, Inc., Starr County, 4 thousand reported
  • LOPEZ HEIRS — oil, Abraxas Production Corporation, Starr County, 4 thousand reported
  • VILLAREAL — gas, Double Play Oil & Gas, Inc, Starr County, 4 thousand reported
  • GARCIA M. M. 'D' — oil, Trap Rock Oil Company, Starr County, 4 thousand reported
  • LA BRISA RANCH 907 — gas, Trap Rock Oil Company, Starr County, 4 thousand reported
  • STATE OF TEXAS — gas, Hanson Production Company, Starr County, 4 thousand reported
  • GUERRA, A. M. — gas, Kebo Oil & Gas, Inc., Starr County, 4 thousand reported
  • MARGO/PENA — oil, Mortimer Production Company, Starr County, 4 thousand reported
  • WARDNER D — gas, Sarrita Oil Co., Inc., Starr County, 4 thousand reported
  • CLEOPATRA — gas, White Oak Operating Company LLC, Starr County, 4 thousand reported
  • TEXACO FEE GUERRA C — gas, Metano Energy, LP, Starr County, 4 thousand reported
  • GUERRA GAS UNIT "A" — gas, Coastal Oil & Gas Corporation, Starr County, 4 thousand reported
  • CONOCO-RINCON UNIT — oil, Conoco Inc., Starr County, 4 thousand reported
  • SLICK ESTATE '527' — oil, Dewbre Petroleum Corporation, Starr County, 4 thousand reported
  • M.M. GARCIA 'D' — gas, Trap Rock Oil, Ltd., Starr County, 4 thousand reported
  • MARTINEZ -B- — oil, Samedan Oil Corporation, Starr County, 4 thousand reported
  • LOPEZ GAS UNIT — gas, Metano Energy, LP, Starr County, 4 thousand reported
  • EDGERTON — oil, L & B Oil And Gas Equipment, LLC, Starr County, 4 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.