Oil and gas leases in Starr County — page 7

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 7 of 17

BLOOMBERG, SAMUEL D. — gas, Edge Petroleum Oper. Co., Inc., Starr County, 561 thousand reported
FINA-CONOCO FEE — gas, Fina Oil & Chemical Company, Starr County, 561 thousand reported
USA — gas, El Paso E & P Company, L. P., Starr County, 559 thousand reported
GARZA-HITCHCOCK ET AL G. U. — gas, Ram Operating Company, Inc., Starr County, 558 thousand reported
MCGILL BROS. — gas, Exxon Corp., Starr County, 557 thousand reported
SLICK, T. B. ESTATE "A" — gas, Conoco Inc., Starr County, 556 thousand reported
SOUTHWEST FARM & RANCH-STATE — gas, Fina Oil & Chemical Company, Starr County, 554 thousand reported
FINA-CONOCO FEE — gas, Fina Oil & Chemical Company, Starr County, 551 thousand reported
HERMANN, A. G. GAS UNIT — gas, Oryx Energy Company, Starr County, 549 thousand reported
EAST, ALICE K., MRS., -B- — gas, Exxon Corp., Starr County, 548 thousand reported
SPEER, GEO. H. — gas, Oryx Energy Company, Starr County, 548 thousand reported
SLICK, T. B. STATE -B- 528 — gas, Kerr-Mcgee Oil & Gas Onshore LLC, Starr County, 548 thousand reported
MARTINEZ, F. F. 546 — gas, Texas Independent Explor., Inc., Starr County, 548 thousand reported
MARGO "A" — gas, Newgulf Petroleum, LLC, Starr County, 545 thousand reported
SLICK, T. B. ESTATE "A" — gas, Forest Oil Corporation, Starr County, 545 thousand reported
SLICK, T. B. ESTATE — gas, Fina Oil & Chemical Company, Starr County, 541 thousand reported
SLICK, T. B ESTATE — gas, Fina Oil & Chemical Company, Starr County, 541 thousand reported
CAMERON 487 — gas, Texas Independent Explor., Inc., Starr County, 540 thousand reported
STATE OF TEXAS — gas, Sanchez Oil & Gas Corporation, Starr County, 540 thousand reported
U.S.A.-GUERRA "B" GAS UNIT — gas, Coastal Oil & Gas Corporation, Starr County, 539 thousand reported
JUDD ESTATE- STATE RPU — gas, Shell Western E&P Inc., Starr County, 539 thousand reported
SLICK, T. B. ESTATE "B" 536 — gas, Houston Exploration Company, The, Starr County, 537 thousand reported
ALVAREZ-HINOJOSA GAS UNIT — gas, Kerr-Mcgee Oil & Gas Onshore LP, Starr County, 536 thousand reported
CAMERON, DON ET AL — gas, Neuhaus, V. F. Properties, Inc., Starr County, 536 thousand reported
DE GARCIA, B. G. — gas, Oryx Energy Company, Starr County, 535 thousand reported
SLICK, T. B. B-536 — gas, Conoco Inc., Starr County, 534 thousand reported
DE LOPEZ, C. V. -B- — gas, Oryx Energy Company, Starr County, 533 thousand reported
STATE-SLICK — gas, Shell Western E&P, Starr County, 533 thousand reported
ALVAREZ-HINOJOSA GAS UNIT — gas, Oryx Energy Company, Starr County, 531 thousand reported
LUERA STATE GAS UNIT "A" — gas, El Paso Production Oil & Gas Co., Starr County, 530 thousand reported
EVELYN CAMERON STATE — gas, Carrizo Oil & Gas, Inc., Starr County, 530 thousand reported
WOOD "A" — gas, Transtexas Gas Corporation, Starr County, 527 thousand reported
STATE OF TEXAS — gas, Hanson Production Company, Starr County, 526 thousand reported
MARTINEZ — gas, BPL Exploration, Ltd., Starr County, 525 thousand reported
MUNOZ "A" GU — gas, Eog Resources, Inc., Starr County, 522 thousand reported
HEARD, J.F.B. — gas, Alpha Omega Petroleum, Inc., Starr County, 522 thousand reported
EMMA PENA GAS UNIT — gas, Shell Western E&P, Starr County, 521 thousand reported
HOWELL, J. J. — gas, Shell Western E&P, Starr County, 520 thousand reported
HERMANN, A.G. GAS UNIT — gas, Kerr-Mcgee Oil & Gas Onshore LLC, Starr County, 519 thousand reported
MCLEAN, MARRS — gas, Opex Energy, LLC, Starr County, 518 thousand reported
DE FLORES, M. S. — gas, Hanson Production Company, Starr County, 518 thousand reported
FLORES GAS UNIT — gas, Metano Energy, LP, Starr County, 518 thousand reported
GUERRA, A., JR. ET AL -A- — gas, PG&E Resources Company, Starr County, 517 thousand reported
GONZALES — gas, Texas Independent Explor., Inc., Starr County, 517 thousand reported
TEXACO FEE — gas, Mustang Oil & Gas Corporation, Starr County, 516 thousand reported
SAMANO — gas, Smith Production Inc., Starr County, 515 thousand reported
FINA-CONOCO FEE — gas, Fina Oil & Chemical Company, Starr County, 514 thousand reported
SLICK, T. B. ESTATE — gas, Shell Western E&P, Starr County, 514 thousand reported
SLICK, T. B. -A- 485 — gas, Kerr-Mcgee Oil & Gas Onshore LLC, Starr County, 513 thousand reported
TEXACO-FEE GUERRA G — gas, Lynx Energy Company, Inc., Starr County, 512 thousand reported
CHAPOTAL LAND CO. — gas, Kerr-Mcgee Oil & Gas Onshore LP, Starr County, 510 thousand reported
JUAREZ, MIGUEL — gas, Exxon Corp., Starr County, 510 thousand reported
VILLARREAL — gas, Peoples Energy Prod.-TX, L.P., Starr County, 509 thousand reported
HERMANN, E. — gas, Kerr-Mcgee Oil & Gas Onshore LP, Starr County, 508 thousand reported
STATE SLICK "C" — gas, Fina Oil & Chemical Company, Starr County, 507 thousand reported
SLICK, T. B. ESTATE — gas, Oxy USA Inc., Starr County, 507 thousand reported
SLICK, T. B. ESTATE — gas, Fina Oil & Chemical Company, Starr County, 504 thousand reported
HALL, C. M. -A- — gas, Kerr-Mcgee Oil & Gas Onshore LLC, Starr County, 504 thousand reported
SAMANO — gas, Smith Production Inc., Starr County, 502 thousand reported
BLOOMBERG, SAMUEL D. — gas, Smith Production Inc., Starr County, 500 thousand reported
BARRERA, F. - STATE — gas, Shell Western E&P Inc., Starr County, 500 thousand reported
FROST NATIONAL BANK -A- — gas, Kerr-Mcgee Oil & Gas Onshore LP, Starr County, 500 thousand reported
SOUTHWEST FARM & RANCH-STATE — gas, Fina Oil & Chemical Company, Starr County, 499 thousand reported
STARRPRO MINERALS "C4" GAS UNIT — gas, Legend Natural Gas III, LP, Starr County, 497 thousand reported
STATE SLICK — gas, Shell Western E&P, Starr County, 497 thousand reported
GEO. H. SPEER - STATE 'B' — gas, Killam Oil Co., Ltd., Starr County, 496 thousand reported
SLICK, T. B. ESTATE "A" — gas, Houston Exploration Company, The, Starr County, 495 thousand reported
ALVAREZ-HINOJOSA GAS UNIT — gas, Oryx Energy Company, Starr County, 494 thousand reported
COATES 553 — gas, Texas Independent Explor., Inc., Starr County, 493 thousand reported
MCCLURE — gas, Eog Resources, Inc., Starr County, 491 thousand reported
SLICK, T. B. ESTATE "A" — gas, Houston Exploration Company, The, Starr County, 488 thousand reported
BENTSEN BROS. "A" — gas, Headington Oil Company, Starr County, 487 thousand reported
REILLY HEIRS — gas, Oryx Energy Company, Starr County, 487 thousand reported
GUERRA STATE GU — gas, Wagner, Duer & Co., Starr County, 486 thousand reported
YTURRIA-GARCIA UNIT — gas, Neuhaus, V. F. Properties, Inc., Starr County, 485 thousand reported
SPEER, GEO. H. ST. "B" — gas, Exaro Energy II, LLC, Starr County, 483 thousand reported
T. B. SLICK B-528 — gas, Conoco Inc., Starr County, 482 thousand reported
STARRPRO MINERALS "C4" GAS UNIT — gas, Legend Natural Gas III, LP, Starr County, 482 thousand reported
GUERRA, F.B. ESTATE -B- — gas, PG&E Resources Company, Starr County, 481 thousand reported
GUERRA BROS. — gas, Peoples Energy Prod.-TX, L.P., Starr County, 481 thousand reported
SLICK ESTATE — gas, Mueller Engineering Corp., Starr County, 481 thousand reported
GARZA HITCHCOCK ET AL UNIT — gas, Shell Western E&P Inc., Starr County, 480 thousand reported
HALL, J. F. STATE — gas, Oryx Energy Company, Starr County, 478 thousand reported
U.S.A.-GUERRA "B" GAS UNIT — gas, Coastal Oil & Gas Corporation, Starr County, 475 thousand reported
SLICK, T. B. ESTATE "A" — gas, Houston Exploration Company, The, Starr County, 473 thousand reported
FINA CONOCO FEE — gas, Fina Oil & Chemical Company, Starr County, 472 thousand reported
ALVAREZ-HINOJOSA GAS UNIT — gas, Kerr-Mcgee Oil & Gas Onshore LP, Starr County, 471 thousand reported
SOUTHWEST TEXAS CORP "E" — gas, Eog Resources, Inc., Starr County, 469 thousand reported
MONTALVO 'B' (NORTH) UNIT — gas, Killam Oil Co., Ltd., Starr County, 468 thousand reported
BILLUPS — gas, Eog Resources, Inc., Starr County, 468 thousand reported
NIMMO GAS UNIT NO. 1 — gas, Ascent Energy, Inc, Starr County, 467 thousand reported
SEMMES — gas, Metano Energy, LP, Starr County, 467 thousand reported
SPEER, GEO. H. — gas, Oryx Energy Company, Starr County, 466 thousand reported
ALVAREZ-HINOJOSA GAS UNIT — gas, Kerr-Mcgee Oil & Gas Onshore LLC, Starr County, 466 thousand reported
LA GRANGE — gas, Kebo Oil & Gas, Inc., Starr County, 465 thousand reported
SEMMES TRUST, ET AL 906 — gas, Conocophillips Company, Starr County, 464 thousand reported
DE GARCIA, B. G. — gas, Kerr-Mcgee Oil & Gas Onshore LP, Starr County, 464 thousand reported
SLICK, T. B. ESTATE "B" 536 — gas, Forest Oil Corporation, Starr County, 464 thousand reported
COATES — gas, Tri-C Resources, Inc., Starr County, 464 thousand reported
BLOOMBERG — gas, Bass Enterprises Production Co., Starr County, 463 thousand reported
RICHMOND — gas, El Paso Production Oil & Gas Co., Starr County, 462 thousand reported
MCGILL BROS. — gas, Exxon Corp., Starr County, 462 thousand reported
SOUTHWEST FARM & RANCH — gas, Totalfinaelf E&P USA Inc, Starr County, 462 thousand reported
LAUREL, D. — gas, Rand - Paulson Oil Company, Inc., Starr County, 461 thousand reported
FINA CONOCO FEE — gas, Fina Oil & Chemical Company, Starr County, 461 thousand reported
CAMERON 137 — gas, Hanson Production Company, Starr County, 460 thousand reported
DE GARCIA, B.G. — gas, Kerr-Mcgee Oil & Gas Onshore LP, Starr County, 460 thousand reported
SLICK, T. B. STATE HB 222 — gas, Kerr-Mcgee Oil & Gas Onshore LLC, Starr County, 460 thousand reported
MCCLURE — gas, Eog Resources, Inc., Starr County, 458 thousand reported
URSCHEL, C.F. — gas, Fina Oil & Chemical Company, Starr County, 458 thousand reported
GUERRA, LOUISE — gas, Wagner, Duer & Co., Starr County, 458 thousand reported
NIMMO GAS UNIT NO.1 — gas, Paladin-Hayes, L.L.C., Starr County, 458 thousand reported
URSCHEL, C.F. — gas, Fina Oil & Chemical Company, Starr County, 457 thousand reported
SOUTHWEST TEXAS CORP "G" — gas, Eog Resources, Inc., Starr County, 457 thousand reported
SPEER, GEORGE H. ST. "B" — gas, Oryx Energy Company, Starr County, 457 thousand reported
BENTSEN TRACT III -A- — gas, Southeast Producers, Inc., Starr County, 456 thousand reported
SLICK, T. B. ESTATE — gas, Fina Oil & Chemical Company, Starr County, 455 thousand reported
STATE SLICK "D" — gas, Fina Oil & Chemical Company, Starr County, 453 thousand reported
DE GARCIA, B. G. — gas, Oryx Energy Company, Starr County, 453 thousand reported
ORIVE, A. — gas, Kerr-Mcgee Oil & Gas Onshore LP, Starr County, 452 thousand reported
BRANNAN — gas, Ascent Operating, LP, Starr County, 450 thousand reported
ZARSKY — gas, Cummins & Walker Oil Co., Inc., Starr County, 450 thousand reported
COW CREEK CORPORATION ET AL — gas, El Paso E & P Company, L. P., Starr County, 450 thousand reported
T.B. SLICK ESTATE — gas, Fina Oil & Chemical Company, Starr County, 448 thousand reported
SLICK, T. B. ESTATE — gas, Oxy USA Inc., Starr County, 448 thousand reported
SLICK, T.B. ESTATE — gas, Hanson Production Company, Starr County, 447 thousand reported
GUERRA-USA GAS UNIT C — gas, Merit Energy Company, Starr County, 447 thousand reported
GARZA-HITCHCOCK ET AL G. U. — gas, Ascent Operating, LP, Starr County, 446 thousand reported
USA 2 — gas, Merit Energy Company, Starr County, 446 thousand reported
SAMANO — gas, El Paso Production Oil & Gas Co., Starr County, 445 thousand reported
SHEERIN "A" — gas, Legend Natural Gas III, LP, Starr County, 445 thousand reported
BLOOMBERG, SAMUEL D. — gas, Hanson Production Company, Starr County, 445 thousand reported
GUERRA-U.S.A. GAS UNIT "C" — gas, Coastal Oil & Gas Corporation, Starr County, 444 thousand reported
ALVAREZ — gas, Kerr-Mcgee Oil & Gas Onshore LP, Starr County, 444 thousand reported
GUERRA, R.A. — gas, Amax Oil & Gas Inc., Starr County, 443 thousand reported
BENTSON-WHITTINGTON GU 1 — gas, Peoples Energy Prod.-TX, L.P., Starr County, 441 thousand reported
MARTINEZ C — gas, Samedan Oil Corporation, Starr County, 440 thousand reported
SLICK, T. B. ESTATE — gas, Shell Western E&P, Starr County, 440 thousand reported
BLOOMBERG — gas, Bass Enterprises Production Co., Starr County, 439 thousand reported
GARCIA L&L CO. — gas, Kerr-Mcgee Oil & Gas Onshore LLC, Starr County, 439 thousand reported
SLICK, T. B., EST. -E- -537 — gas, Conoco Inc., Starr County, 439 thousand reported
ALVAREZ-HINOJOSA GAS UNIT — gas, Kerr-Mcgee Oil & Gas Onshore LLC, Starr County, 437 thousand reported
GUERRA, F. B., -F- — gas, Lindenmuth & Associates, Inc., Starr County, 437 thousand reported
HINOJOSA ESTATE GAS UNIT — gas, Enercorp Resources, Inc., Starr County, 436 thousand reported
GARCIA L&L CO. — gas, Kerr-Mcgee Oil & Gas Onshore LLC, Starr County, 433 thousand reported
SLICK — gas, TNT Petroleum Company, Inc., Starr County, 431 thousand reported
GARCIA, I. Y. — gas, Kerr-Mcgee Oil & Gas Onshore LLC, Starr County, 431 thousand reported
SLICK, T. B. ESTATE A — gas, Conoco Inc., Starr County, 430 thousand reported
COATES STATE — gas, Texas Independent Explor., Inc., Starr County, 430 thousand reported
GARCIA, JOSE G. DR. — gas, Energy Development Corp., Starr County, 429 thousand reported
GUERRA-U.S.A. GAS UNIT "D' — gas, Coastal Oil & Gas Corporation, Starr County, 428 thousand reported
URSCHEL, C.F. — gas, Fina Oil & Chemical Company, Starr County, 428 thousand reported
DE GARZA, C. L. — gas, Oryx Energy Company, Starr County, 427 thousand reported
GARZA-HITCHCOCK ET AL G. U. — gas, Ram Operating Company, Inc., Starr County, 427 thousand reported
PHILLIPS BTLT — gas, Samedan Oil Corporation, Starr County, 427 thousand reported
LA BRISA 91 — gas, Texas Independent Explor., Inc., Starr County, 425 thousand reported
CAMERON GAS UNIT — gas, Neuhaus, V. F. Properties, Inc., Starr County, 425 thousand reported
GARZA — gas, Rlu Operating, LLC, Starr County, 424 thousand reported
GARZA - MONTALVO GAS UNIT — gas, Oryx Energy Company, Starr County, 423 thousand reported
AMANDA MCKINNEY — gas, Killam Oil Co., Ltd., Starr County, 422 thousand reported
USA 2 — gas, Sanchez-O'Brien Oil & Gas Corp., Starr County, 422 thousand reported
FINA-CONOCO FEE — gas, Fina Oil & Chemical Company, Starr County, 421 thousand reported
MAURICIO GONZALEZ UNIT — gas, Thorp Petroleum Corporation, Starr County, 421 thousand reported
MCGILL BROS. — gas, Exxon Corp., Starr County, 420 thousand reported
G & M /GU-2 — gas, J. & M. Well Service, Inc., Starr County, 416 thousand reported
SAMANO EAST GAS UNIT — gas, Edge Petroleum Oper. Co., Inc., Starr County, 416 thousand reported
BENTSEN-WHITTINGTON GU1 — gas, Peoples Energy Prod.-TX, L.P., Starr County, 414 thousand reported
MARTINEZ C — gas, Samedan Oil Corporation, Starr County, 414 thousand reported
SILVA-COATES ENERGY TRUST — gas, Oryx Energy Company, Starr County, 413 thousand reported
HEARD — gas, Ascent Energy, Inc, Starr County, 410 thousand reported
CLEOPATRA — gas, Wynn-Crosby Energy, Inc., Starr County, 410 thousand reported
GARCIA, M. M. -B- — oil, Conoco Inc., Starr County, 410 thousand reported
SLICK, T. B ESTATE — gas, Fina Oil & Chemical Company, Starr County, 409 thousand reported
GARZA-HITCHCOCK ET AL G. U. — gas, Ascent Operating, LP, Starr County, 408 thousand reported
STATE OF TEXAS - SLICK #4 — gas, Star Of Texas Energy SRVS, Inc., Starr County, 407 thousand reported
GUTIERREZ — gas, Thorp Petroleum Corporation, Starr County, 406 thousand reported
GARCIA L & L CO. "C" — gas, Oryx Energy Company, Starr County, 406 thousand reported
CELESTINO GARZA GU — gas, Amax Oil & Gas Inc., Starr County, 404 thousand reported
MCGILL BROS. — gas, Exxon Corp., Starr County, 404 thousand reported
NILO SHALLOW A GU — gas, Enron Oil & Gas Company, Starr County, 402 thousand reported
SLICK, T. B. ESTATE — gas, Oxy USA Inc., Starr County, 401 thousand reported
HALL, J. F. STATE -A- — gas, Killam Oil Co., Ltd., Starr County, 401 thousand reported
SHEERIN, IRENE - TEXAS STATE — gas, Neuhaus, V. F. Properties, Inc., Starr County, 400 thousand reported
ALVAREZ — gas, Kerr-Mcgee Oil & Gas Onshore LP, Starr County, 398 thousand reported
SHEERIN, IRENE-TEXAS STATE — gas, Neuhaus, V. F. Properties, Inc., Starr County, 398 thousand reported
SLICK, T. B. ESTATE — gas, Oxy USA Inc., Starr County, 397 thousand reported
SAENZ, G.F. — gas, Spiller, Robert S., Starr County, 397 thousand reported
YTURRIA L & L CO. -B- — gas, Kerr-Mcgee Oil & Gas Onshore LLC, Starr County, 396 thousand reported
GUERRA, A., JR. UNIT 6 — gas, PG&E Resources Company, Starr County, 396 thousand reported
SLICK 531 — gas, Texas Independent Explor., Inc., Starr County, 396 thousand reported
GUERRA-USA GAS UNIT C. — gas, Cantera Operating, LLC, Starr County, 396 thousand reported
SLICK, T. B. ESTATE B 232 — gas, Forest Oil Corporation, Starr County, 396 thousand reported
ESQUIVEL — gas, Reveille Resources (Texas), Inc., Starr County, 394 thousand reported
GUERRA GAS UNIT"A" — gas, Coastal Oil & Gas Corporation, Starr County, 393 thousand reported
SAMANO — gas, El Paso Production Oil & Gas Co., Starr County, 393 thousand reported
GARCIA UNIT — gas, Peoples Energy Prod.-TX, L.P., Starr County, 393 thousand reported
GARCIA, L&L -C- — gas, Oryx Energy Company, Starr County, 392 thousand reported
ALVARADO, FRANCISCO — gas, Neuhaus, V. F. Properties, Inc., Starr County, 391 thousand reported
SLICK, T.B. STATE HB-222 — gas, Kerr-Mcgee Oil & Gas Onshore LLC, Starr County, 389 thousand reported
REILLY HEIRS — gas, Kerr-Mcgee Oil & Gas Onshore LP, Starr County, 389 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.