Oil and gas leases in Frio County

Frio County, Texas has 1,189 oil and gas leases with production on file at the Railroad Commission, all of them in Commission district 01. 1,001 of them are oil leases and 188 are gas leases. Between them they carry 3,115 wellbores. Reported volumes run from January 1993 to August 2026 and come to 108.3 million barrels of oil and 54.9 million Mcf of gas. 256 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 Frio County

How many oil and gas leases are in Frio County?
Frio County has 1,189 oil and gas leases with production reported to the Railroad Commission of Texas, as of August 2026.
How much oil and gas has Frio County produced?
Leases in Frio County have reported 108,255,507 barrels of oil (bbl) and 54,895,045 thousand cubic feet of gas (Mcf) to the Railroad Commission of Texas between January 1993 and August 2026.
Who are the biggest operators in Frio County?
Cabot Oil & Gas Corporation operates 64 of the 1,189 producing leases in Frio County, more than any other operator on record with the Railroad Commission of Texas.
How many operators are active in Frio County?
256 operators file production returns for leases in Frio County.
How much are mineral rights in Frio County worth?
There is no single figure: what a mineral or royalty interest in Frio County is worth depends on the individual lease, its decline, and the share the owner holds. Each of the 1,189 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.

Operators here

The company that runs the wells and issues the royalty cheque.

Railroad Commission districts

Leases — page 1 of 6

  • HAUSSER — oil, Sanchez Oil & Gas Corporation, Frio County, 6.8 million reported
  • ZRZAVY UNIT — oil, Cabot Oil & Gas Corporation, Frio County, 2.5 million reported
  • SIEGELE — oil, Carrizo (Eagle Ford) LLC, Frio County, 2.5 million reported
  • BIG FOOT OLMOS B SAND UNIT — oil, HCM, Frio County, 2.0 million reported
  • SCHORP-WHITE RANCH, LTD. — oil, Cabot Oil & Gas Corporation, Frio County, 2.0 million reported
  • HIDEAWAY RANCH — oil, U.S. Energy Development Corp, Frio County, 1.9 million reported
  • THOMPSON RANCH — oil, Ef Energy, L.L.C., Frio County, 1.6 million reported
  • CALVERT RANCH FRO — oil, Exco Operating Company, LP, Frio County, 1.6 million reported
  • HARLAN RK — oil, Virtex Operating Company, Inc., Frio County, 1.6 million reported
  • HILDEBRAND — oil, Gemini Exploration Company, Frio County, 1.4 million reported
  • KOTHMANN-RANCH — oil, Ef Energy, L.L.C., Frio County, 1.4 million reported
  • JAY HARPOLE — oil, Cabot Oil & Gas Corporation, Frio County, 1.3 million reported
  • ALC RANCH — gas, Trinity Operating (Usg), LLC, Frio County, 1.3 million reported
  • GUY BOB FRO — oil, Exco Operating Company, LP, Frio County, 1.3 million reported
  • MARRS MCLEAN — oil, Virtex Operating Company, Inc., Frio County, 1.3 million reported
  • CALVERT, J. H. — gas, Jab Operating, Inc., Frio County, 1.2 million reported
  • BOLL FRO E — oil, Exco Operating Company, LP, Frio County, 1.2 million reported
  • SANTA CRUZ-TEN MILE UNIT — oil, Cabot Oil & Gas Corporation, Frio County, 1.2 million reported
  • TURMAN — oil, Texas American Resources Company, Frio County, 1.1 million reported
  • CARNES — gas, Virtex Petroleum Company, Inc., Frio County, 1.1 million reported
  • BENKE — oil, Cabot Oil & Gas Corporation, Frio County, 1.1 million reported
  • SHINER RANCH -B- — oil, Hinton Production Company, Frio County, 1.1 million reported
  • R.H. PICKENS, ET AL "A" — oil, Cabot Oil & Gas Corporation, Frio County, 1.1 million reported
  • MARRS BAUERLE UNIT — oil, Ageron Energy, LLC, Frio County, 983 thousand reported
  • TORTUGA — gas, Javelin Energy Partners MGMT LLC, Frio County, 963 thousand reported
  • VALYN CLARA — oil, SN Operating, LLC, Frio County, 899 thousand reported
  • GPC GEMINI — oil, Goodrich Petroleum Company, Frio County, 874 thousand reported
  • SHINER RANCH — oil, Gemini Exploration Company, Frio County, 871 thousand reported
  • WELDON SCHORP UNIT "A" — oil, Cabot Oil & Gas Corporation, Frio County, 869 thousand reported
  • BAUERLE BOMC UNIT — oil, Trinity Operating (Usg), LLC, Frio County, 869 thousand reported
  • ALINE WILLIAMS UNIT B — gas, Cheyenne Petroleum Company, Frio County, 860 thousand reported
  • BLUEJACK 2H — gas, Javelin Energy Partners MGMT LLC, Frio County, 856 thousand reported
  • JACKSON, ET AL - BLUE QUAIL UNIT — oil, Cabot Oil & Gas Corporation, Frio County, 855 thousand reported
  • HARLAN, R. K. — gas, Denovo Oil & Gas, Inc., Frio County, 854 thousand reported
  • MIDWAY C — gas, Trinity Operating (Usg), LLC, Frio County, 845 thousand reported
  • CYNDI UNIT — oil, Ageron Energy, LLC, Frio County, 837 thousand reported
  • MIDWAY J — gas, Trinity Operating (Usg), LLC, Frio County, 834 thousand reported
  • WHITWELL A — oil, Trinity Operating (Usg), LLC, Frio County, 833 thousand reported
  • ARMINIUS ENERGY TRUST — oil, Cabot Oil & Gas Corporation, Frio County, 822 thousand reported
  • MIDWAY J — gas, Trinity Operating (Usg), LLC, Frio County, 809 thousand reported
  • MIDWAY SOUTH M — gas, Frio County, 796 thousand reported
  • SHINER RANCH — gas, Javelin Energy Partners MGMT LLC, Frio County, 789 thousand reported
  • PALS RANCH — gas, Blackbrush O & G, LLC, Frio County, 788 thousand reported
  • MARRS MCLEAN UNIT — gas, Virtex Operating Company, Inc., Frio County, 775 thousand reported
  • FOUR CORNERS RANCH-UNIT 'B' — oil, Cabot Oil & Gas Corporation, Frio County, 762 thousand reported
  • MIDWAY J — gas, Trinity Operating (Usg), LLC, Frio County, 723 thousand reported
  • MARRS MCLEAN UNIT — gas, Virtex Operating Company, Inc., Frio County, 711 thousand reported
  • MIDWAY SOUTH K — gas, Trinity Operating (Usg), LLC, Frio County, 708 thousand reported
  • SHINER RANCH — gas, Javelin Energy Partners MGMT LLC, Frio County, 700 thousand reported
  • WHITWELL C — oil, Trinity Operating (Usg), LLC, Frio County, 698 thousand reported
  • MIDWAY I — gas, Trinity Operating (Usg), LLC, Frio County, 697 thousand reported
  • DERBY SOUTH C — gas, Frio County, 660 thousand reported
  • JOE HINDES 'F' UNIT — oil, Cabot Oil & Gas Corporation, Frio County, 658 thousand reported
  • HARLAN, R. K. — gas, Virtex Petroleum Company, Inc., Frio County, 652 thousand reported
  • MIDWAY SOUTH L — gas, Trinity Operating (Usg), LLC, Frio County, 650 thousand reported
  • SHINER RANCH — oil, Oryx Energy Company, Frio County, 634 thousand reported
  • PANTHER HOLLOW — oil, Oryx Energy Company, Frio County, 628 thousand reported
  • WILLIAMS, GEO. M. — gas, Amax Oil & Gas Inc., Frio County, 622 thousand reported
  • HARLAN, R. K. — gas, Virtex Operating Company, Inc., Frio County, 612 thousand reported
  • AVANT, J.R. — oil, Oryx Energy Company, Frio County, 605 thousand reported
  • JOHNSTON RANCH — oil, Texas American Resources Company, Frio County, 601 thousand reported
  • MIDWAY I — gas, Trinity Operating (Usg), LLC, Frio County, 597 thousand reported
  • WHITWELL B — oil, Trinity Operating (Usg), LLC, Frio County, 597 thousand reported
  • HBR — oil, BRC Operating Company LLC, Frio County, 594 thousand reported
  • MONTE LENOSO FRO — oil, Chesapeake Operating, Inc., Frio County, 594 thousand reported
  • MIDWAY SOUTH M — gas, Trinity Operating (Usg), LLC, Frio County, 592 thousand reported
  • HARLAN, R. K. — gas, Virtex Operating Company, Inc., Frio County, 583 thousand reported
  • MARRS MCLEAN UNIT — gas, Virtex Operating Company, Inc., Frio County, 581 thousand reported
  • MIDWAY H — gas, Frio County, 575 thousand reported
  • MARRS MCLEAN — oil, Ef Energy, L.L.C., Frio County, 575 thousand reported
  • WELDON SCHORP-SANDSPUR UNIT — gas, Cabot Oil & Gas Corporation, Frio County, 572 thousand reported
  • JACKSON, ET AL-BOBWHITE UNIT — oil, Cabot Oil & Gas Corporation, Frio County, 564 thousand reported
  • TORTUGA — gas, Javelin Energy Partners MGMT LLC, Frio County, 561 thousand reported
  • MIDWAY C — gas, Trinity Operating (Usg), LLC, Frio County, 556 thousand reported
  • CHILIPITIN, LTD. — oil, Cabot Oil & Gas Corporation, Frio County, 550 thousand reported
  • HARLAN, R. K. — gas, Virtex Petroleum Company, Inc., Frio County, 547 thousand reported
  • MIDWAY F — oil, Trinity Operating (Usg), LLC, Frio County, 542 thousand reported
  • PALS RANCH — gas, Blackbrush O & G, LLC, Frio County, 541 thousand reported
  • LONGHORN A EAGLE FORD POOLED UT — gas, Trinity Operating (Usg), LLC, Frio County, 539 thousand reported
  • ALINE WILLIAMS UNIT A — oil, Cheyenne Petroleum Company, Frio County, 536 thousand reported
  • LONGHORN A EAGLE FORD POOLED UT — gas, Trinity Operating (Usg), LLC, Frio County, 531 thousand reported
  • TAYLOR-CARRICO UNIT #1 — gas, Frio County, 523 thousand reported
  • DERBY SOUTH H — gas, Trinity Operating (Usg), LLC, Frio County, 517 thousand reported
  • MONTE LENOSO — oil, U.S. Energy Development Corp, Frio County, 514 thousand reported
  • TALON 305 — gas, Javelin Energy Partners MGMT LLC, Frio County, 514 thousand reported
  • TALON UNIT — oil, Venado Operating Company LLC, Frio County, 508 thousand reported
  • MIDWAY SOUTH K — gas, Trinity Operating (Usg), LLC, Frio County, 499 thousand reported
  • LONGHORN A EAGLE FORD POOLED UT — gas, Trinity Operating (Usg), LLC, Frio County, 497 thousand reported
  • TAYLOR-CARRICO UNIT #1 — gas, Trinity Operating (Usg), LLC, Frio County, 491 thousand reported
  • MCWILLIAMS HEIRS A — oil, Virtex Operating Company, Inc., Frio County, 484 thousand reported
  • HALFF & OPPENHEIMER — oil, Lawbar Petroleum, Inc., Frio County, 480 thousand reported
  • HIDEAWAY RANCH NORTH — oil, U.S. Energy Development Corp, Frio County, 476 thousand reported
  • IRONWOOD — oil, U.S. Energy Development Corp, Frio County, 465 thousand reported
  • MIDWAY H — gas, Trinity Operating (Usg), LLC, Frio County, 462 thousand reported
  • HARLAN, R. K. — gas, Denovo Oil & Gas, Inc., Frio County, 459 thousand reported
  • WHITWELL D — oil, Trinity Operating (Usg), LLC, Frio County, 457 thousand reported
  • MIDWAY E — oil, Trinity Operating (Usg), LLC, Frio County, 450 thousand reported
  • MIDWAY SOUTH L — gas, Trinity Operating (Usg), LLC, Frio County, 447 thousand reported
  • WELDON SCHORP-PRICKLY PEAR UNIT — gas, Cabot Oil & Gas Corporation, Frio County, 441 thousand reported
  • STEWART — oil, Ricochet Energy, Inc., Frio County, 439 thousand reported
  • MARRS MCLEAN UNIT — gas, Virtex Operating Company, Inc., Frio County, 431 thousand reported
  • SCHORP-WHITE RANCH, LTD. — gas, Cabot Oil & Gas Corporation, Frio County, 425 thousand reported
  • MARRS MCLEAN UNIT — gas, Virtex Operating Company, Inc., Frio County, 413 thousand reported
  • BURNS RANCH E — gas, Trinity Operating (Usg), LLC, Frio County, 411 thousand reported
  • WHITWELL G — gas, Trinity Operating (Usg), LLC, Frio County, 406 thousand reported
  • HILDEBRAND — oil, Williams, Clayton Energy, L.L.C, Frio County, 401 thousand reported
  • HARLAN, R. K. — oil, Virtex Operating Company, Inc., Frio County, 399 thousand reported
  • MIDWAY H — gas, Trinity Operating (Usg), LLC, Frio County, 399 thousand reported
  • HARLAN, R. K. — gas, Virtex Petroleum Company, Inc., Frio County, 396 thousand reported
  • WHITWELL E — oil, Trinity Operating (Usg), LLC, Frio County, 389 thousand reported
  • MIDWAY I — gas, Trinity Operating (Usg), LLC, Frio County, 383 thousand reported
  • PALS RANCH — oil, Christico Petroleum Company, Frio County, 380 thousand reported
  • HARLAN, R. K. — gas, Virtex Operating Company, Inc., Frio County, 380 thousand reported
  • BURNS RANCH E — gas, Trinity Operating (Usg), LLC, Frio County, 380 thousand reported
  • SCHNEIDER TRUST, ET AL, UNIT — gas, Cabot Oil & Gas Corporation, Frio County, 378 thousand reported
  • RALLY PETROLEUM — oil, U.S. Enercorp, Ltd., Frio County, 375 thousand reported
  • WILLIAMS, GEO. M. — gas, Amax Oil & Gas Inc., Frio County, 369 thousand reported
  • HARLAN, R. K. — gas, Denovo Oil & Gas, Inc., Frio County, 367 thousand reported
  • TALON 304 — gas, Javelin Energy Partners MGMT LLC, Frio County, 365 thousand reported
  • JACKSON, ET AL-WEST UNIT — gas, Cabot Oil & Gas Corporation, Frio County, 365 thousand reported
  • GRAYLEAF 1H — oil, Cabot Oil & Gas Corporation, Frio County, 364 thousand reported
  • DAUNTLESS 2H — oil, Cabot Oil & Gas Corporation, Frio County, 364 thousand reported
  • SANTA CRUZ REALTY, ET AL UNIT — oil, Cabot Oil & Gas Corporation, Frio County, 363 thousand reported
  • PECHAL-SIRNY — gas, Virtex Operating Company, Inc., Frio County, 359 thousand reported
  • TALON UNIT — gas, Javelin Energy Partners MGMT LLC, Frio County, 357 thousand reported
  • WILLOW 2H — oil, Venado Operating Company LLC, Frio County, 357 thousand reported
  • GHOST TOWN UNIT — oil, Cabot Oil & Gas Corporation, Frio County, 351 thousand reported
  • HARLAN, R. K. — gas, Denovo Oil & Gas, Inc., Frio County, 351 thousand reported
  • ALEXANDER TCB UNIT — oil, Trinity Operating (Usg), LLC, Frio County, 349 thousand reported
  • ROBERT J.S. SMITH — oil, Rosewood Resources, Inc., Frio County, 332 thousand reported
  • CARNES — gas, Virtex Petroleum Company, Inc., Frio County, 331 thousand reported
  • CLYDESDALE 2H — oil, Cabot Oil & Gas Corporation, Frio County, 331 thousand reported
  • ORION 1H — oil, Cabot Oil & Gas Corporation, Frio County, 328 thousand reported
  • BURNS, JANE — oil, HCM, Frio County, 326 thousand reported
  • SPITFIRE 1H — oil, Cabot Oil & Gas Corporation, Frio County, 326 thousand reported
  • OQUINN, WEBSTER, GAS UNIT — gas, Amax Oil & Gas Inc., Frio County, 324 thousand reported
  • GEMINI 1H — oil, Cabot Oil & Gas Corporation, Frio County, 324 thousand reported
  • APOLLO 1H — oil, Cabot Oil & Gas Corporation, Frio County, 322 thousand reported
  • GUY BOB UNIT FRO — oil, Exco Operating Company, LP, Frio County, 320 thousand reported
  • H.A. GRAY, ET AL UNIT — oil, Cabot Oil & Gas Corporation, Frio County, 314 thousand reported
  • TURMAN — gas, Trinity Operating (Usg), LLC, Frio County, 313 thousand reported
  • REMINGTON 2H — oil, Cabot Oil & Gas Corporation, Frio County, 313 thousand reported
  • HARLAN, R. K. — gas, Virtex Operating Company, Inc., Frio County, 313 thousand reported
  • ORELIA RANCH C — oil, Rosewood Resources, Inc., Frio County, 310 thousand reported
  • HOYLE, BILL — gas, Mayo Oil Co., Frio County, 308 thousand reported
  • HILLMAN 304 — oil, Javelin Energy Partners MGMT LLC, Frio County, 305 thousand reported
  • TATE, G. E. — gas, Virtex Petroleum Company, Inc., Frio County, 305 thousand reported
  • REMINGTON 1H — oil, Cabot Oil & Gas Corporation, Frio County, 304 thousand reported
  • CARNES "B" — oil, Goodrich Petroleum Company, Frio County, 302 thousand reported
  • WHITWELL G — oil, Trinity Operating (Usg), LLC, Frio County, 301 thousand reported
  • TORTUGA — oil, Venado Operating Company LLC, Frio County, 301 thousand reported
  • LOTHRINGER — oil, Virtex Operating Company, Inc., Frio County, 298 thousand reported
  • LONGHORN A EAGLE FORD POOLED UT — gas, Trinity Operating (Usg), LLC, Frio County, 297 thousand reported
  • SHEEPFOOT 1H — oil, Cabot Oil & Gas Corporation, Frio County, 295 thousand reported
  • PH GREEN — oil, Mueller Exploration, Inc., Frio County, 295 thousand reported
  • HARLAN, R. K. — gas, Denovo Oil & Gas, Inc., Frio County, 293 thousand reported
  • GALILEO 1H — oil, Cabot Oil & Gas Corporation, Frio County, 292 thousand reported
  • DOERING, FRANK — gas, Denovo Oil & Gas, Inc., Frio County, 292 thousand reported
  • BURNS -A- — oil, Williams, Clayton Energy, L.L.C, Frio County, 288 thousand reported
  • MANN, A. A. — gas, Amax Oil & Gas Inc., Frio County, 287 thousand reported
  • HARLAN, R. K. — gas, Virtex Operating Company, Inc., Frio County, 281 thousand reported
  • CLYDESDALE 1H — oil, Cabot Oil & Gas Corporation, Frio County, 280 thousand reported
  • DERBY NORTH G — oil, Trinity Operating (Usg), LLC, Frio County, 277 thousand reported
  • SHINER-MORALES — oil, Germany Operating Company, Frio County, 277 thousand reported
  • C CROSS RANCH 303 — oil, Javelin Energy Partners MGMT LLC, Frio County, 275 thousand reported
  • C CROSS RANCH 301 — oil, Javelin Energy Partners MGMT LLC, Frio County, 275 thousand reported
  • LITTLE, VIRGINIA L. — oil, Texan Production, Frio County, 274 thousand reported
  • ORELIA RANCH B — oil, Rosewood Resources, Inc., Frio County, 274 thousand reported
  • TALASEK — gas, Virtex Operating Company, Inc., Frio County, 273 thousand reported
  • HARLAN, R. K. — gas, Virtex Operating Company, Inc., Frio County, 272 thousand reported
  • PERCHERON 1H — oil, Cabot Oil & Gas Corporation, Frio County, 271 thousand reported
  • MUSTANG 1H — oil, Cabot Oil & Gas Corporation, Frio County, 269 thousand reported
  • ECHENROTH, ED H. — gas, Virtex Petroleum Company, Inc., Frio County, 268 thousand reported
  • ORELIA RANCH J — oil, Rosewood Resources, Inc., Frio County, 265 thousand reported
  • CLYDESDALE 3H — oil, Cabot Oil & Gas Corporation, Frio County, 263 thousand reported
  • WALDEN, R. C. — gas, Amax Oil & Gas Inc., Frio County, 261 thousand reported
  • ORELIA RANCH A — oil, Rosewood Resources, Inc., Frio County, 260 thousand reported
  • BRUNDRETT-BETCO — oil, Mescalero Energy, Inc., Frio County, 260 thousand reported
  • HITZFELDER — oil, Property Development Group, Inc., Frio County, 259 thousand reported
  • C CROSS RANCH 302 — oil, Javelin Energy Partners MGMT LLC, Frio County, 258 thousand reported
  • HARLAN, R. K. — gas, Virtex Petroleum Company, Inc., Frio County, 257 thousand reported
  • BLAINE SCHORP, ET AL. UNIT — gas, Cabot Oil & Gas Corporation, Frio County, 255 thousand reported
  • BERRY, MARTHA F. — gas, Amax Oil & Gas Inc., Frio County, 254 thousand reported
  • DERBY SOUTH C — oil, Trinity Operating (Usg), LLC, Frio County, 254 thousand reported
  • MCGINTY SCHICK — oil, Virtex Operating Company, Inc., Frio County, 254 thousand reported
  • BOLL-CALVERT UNIT FRO — oil, Exco Operating Company, LP, Frio County, 251 thousand reported
  • O'QUINN, WEBSTER — gas, Virtex Petroleum Company, Inc., Frio County, 250 thousand reported
  • SPEAR POINT 1H — oil, Cabot Oil & Gas Corporation, Frio County, 249 thousand reported
  • LANHAM, B. C. — gas, Amax Oil & Gas Inc., Frio County, 249 thousand reported
  • MUSTANG 2H — oil, Cabot Oil & Gas Corporation, Frio County, 246 thousand reported
  • ORELIA RANCH H — oil, Rosewood Resources, Inc., Frio County, 245 thousand reported
  • ORELIA RANCH M — oil, Rosewood Resources, Inc., Frio County, 245 thousand reported
  • TALON 306 — oil, Javelin Energy Partners MGMT LLC, Frio County, 242 thousand reported
  • MCLEAN — oil, Ageron Energy, LLC, Frio County, 242 thousand reported
  • CHILES, M. R., GAS UNIT #1 — gas, Amax Oil & Gas Inc., Frio County, 241 thousand reported
  • IRONWOOD UNIT — oil, U.S. Energy Development Corp, Frio County, 239 thousand reported
  • CARNES 303 — oil, Venado Operating Company LLC, Frio County, 239 thousand reported
  • S BAUERLE UNIT — oil, Ageron Energy, LLC, Frio County, 239 thousand reported
  • TATE, GORDON E. — gas, Virtex Petroleum Company, Inc., Frio County, 237 thousand reported
  • HARLAN, R. K. — gas, Virtex Operating Company, Inc., Frio County, 235 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.