← Frio County

Frio County Drilling Permits

Every permit issued by the Texas Railroad Commission in Frio County — updated daily, data through 2026-07-27.

Frio County permitting is running 7.3 permits a month over the trailing 90 days (22 total, level with the prior quarter). 1 was issued in the past week. FORMENTERA OPERATIONS LLC leads with 34 permits in the past 12 months, one of 8 operators active in the county.

Last 30 Days

5

Operators (30d)

2

Latest Permit

2026-07-27

All Time

4,288

4,288 permits
ISSUEDPERMITAPILEASEOPERATORTYPEDEPTHHZ
1986-03-2129995042-163-32513BIG FOOT OLMOS B SAND UNIT #156ASHELL WESTERN E&P INC.DRILL4,000
1986-03-1229949742-163-32511PALS RANCH #1CANNAN, MORRISDRILL7,700
1986-03-1229935142-163-32504BIG FOOT OLMOS B SAND UNIT #163ASHELL WESTERN E&P INC.DRILL4,000
1986-03-1229938842-163-32509BIG FOOT OLMOS B SAND UNIT #155ASHELL WESTERN E&P INC.DRILL4,000
1986-03-1229940542-163-32510BIG FOOT OLMOS B SAND UNIT #130ASHELL WESTERN E&P INC.DRILL4,000
1986-03-1229938442-163-32506BIG FOOT OLMOS B SAND UNIT #106ASHELL WESTERN E&P INC.DRILL4,000
1986-03-1229938542-163-32507BIG FOOT OLMOS B SAND UNIT #88ASHELL WESTERN E&P INC.DRILL4,000
1986-03-1229938742-163-32508BIG FOOT OLMOS B SAND UNIT #70ASHELL WESTERN E&P INC.DRILL4,000
1986-03-1029928542-163-32503BIG FOOT OLMOS B SAND UNIT #163A ISHELL WESTERN E&P INC.DRILL4,000
1986-03-1029928842-163-32504BIG FOOT OLMOS B SAND UNIT #163ASHELL WESTERN E&P INC.DRILL4,000
1986-03-1029998242-163-32515BIG FOOT OLMOS B SAND UNIT #14ASHELL WESTERN E&P INC.DRILL4,000
1986-03-0729921142-163-32502ONION #1POWER OIL CO.DRILL3,600
1986-03-0629912542-163-32501MCKINLEY #4GLENN, WAYNE E. & ASSOC., INC.DRILL6,375
1986-03-0429896642-163-32499BIG FOOT OLMOS B SAND UNIT #79AISHELL WESTERN E&P INC.DRILL4,000
1986-03-0429896642-163-32499BIG FOOT OLMOS B SAND UNIT #79AISHELL WESTERN E&P INC.DRILL4,000
1986-03-0429889642-163-32497SHINER HEIRS #10WILLIAMS, CLAYTON W., JR., INC.DRILL7,800
1986-03-0429896542-163-32498BIG FOOT OLMOS B SAND UNIT #117ISHELL WESTERN E&P INC.DRILL4,000
1986-03-0429896742-163-32500BIG FOOT OLMOS B SAND UNIT #97A ISHELL WESTERN E&P INC.DRILL4,000
1986-03-0329883942-163-32496BIG FOOT OLMOS B SAND UNIT #227ASHELL WESTERN E&P INC.DRILL4,000
1986-03-0329883942-163-32496BIG FOOT OLMOS B SAND UNIT #227ASHELL WESTERN E&P INC.DRILL3,600
1986-02-2729868542-163-32493THOMPSON, DENNIS #14SHELL WESTERN E&P INC.DRILL4,000
1986-02-2729868842-163-32494BIG FOOT OLMOS B SAND UNIT #298ASHELL WESTERN E&P INC.DRILL4,000
1986-02-2729868942-163-32495BIG FOOT OLMOS B SAND UNIT #59AISHELL WESTERN E&P INC.DRILL4,000
1986-02-2729854442-163-32491GRACEY, E. J. #1MAYO OIL CO.DRILL3,100
1986-02-2629858842-163-32492OPPENHEIMER "A" #8SUE-ANN OIL & GAS COMPANYDRILL5,600
1986-02-2429830642-163-32490BIG FOOT OLMOS B SAND UNIT #187ASHELL WESTERN E&P INC.DRILL4,000
1986-02-2129823742-163-32489MCKINNEY, MARY E. #1FAIR ENERGYDRILL4,500
1986-02-2029816942-163-32488SHINER HEIRS #9WILLIAMS, CLAYTON W., JR., INC.DRILL7,800
1986-02-1429787642-163-32486ALANIS, A A #2CUDE, JAMES W. OILDRILL3,200
1986-02-1329788042-163-32487SHINER RANCH #202TEXACO PRODUCING INC.DRILL8,900
1986-02-1329766942-163-32485BIG FOOT OLMOS B SAND UNIT #203ASHELL WESTERN E&P INC.DRILL4,000
1986-02-1329765342-163-00574BIG FOOT OLMOS "B" UNIT #7016DIAMOND SHAMROCK EXPLORATION CO.RECOMP3,450
1986-02-0629712942-163-32484SHINER HEIRS "A" #2WILLIAMS, CLAYTON W., JR., INC.DRILL7,800
1986-02-0529704942-163-32483STEWART, T. B. #7J-W OPERATING CO.DRILL4,400
1986-02-0429685242-163-32482BIG FOOT OLMOS B SAND UNIT #375ASHELL WESTERN E&P INC.DRILL4,000
1986-01-3129684842-163-32479BIG FOOT OLMOS B SAND UNIT #59ASHELL WESTERN E&P INC.DRILL4,000
1986-01-3129685042-163-32480BIG FOOT OLMOS B SAND UNIT #79ASHELL WESTERN E&P INC.DRILL4,000
1986-01-3129685142-163-32481BIG FOOT OLMOS B SAND UNIT #344ASHELL WESTERN E&P INC.DRILL4,000
1986-01-3029655042-163-32478BIG FOOT OLMOS B SAND UNIT #406ASHELL WESTERN E&P INC.DRILL4,000
1986-01-2829635842-163-32477SHINER HEIRS #4WILLIAMS, CLAYTON W., JR., INC.DRILL7,800
1986-01-2329601142-163-32474BIG FOOT OLMOS B SAND UNIT #97ASHELL WESTERN E&P INC.DRILL4,000
1986-01-2329601442-163-32475BIG FOOT OLMOS B SAND UNIT #311ASHELL WESTERN E&P INC.DRILL4,000
1986-01-2329601942-163-32476BIG FOOT OLMOS B SAND UNIT #376ASHELL WESTERN E&P INC.DRILL4,000
1986-01-1429532242-163-32473SHINER HEIRS "C" #1WILLIAMS, CLAYTON W., JR., INC.DRILL8,000
1986-01-0829468642-163-00143BOHL, ANNIE #1DIAMOND SHAMROCK EXPLORATION CO.RECOMP3,650
1985-12-3029373642-163-32472BROWN, CHARLES F. #1COLSTAR PETROLEUM, CORP.DRILL3,750
1985-12-1229273142-163-32471ROSENAUER, MATTIE #11SHELL WESTERN E&P INC.DRILL4,000
1985-12-1229273042-163-32470THOMPSON, DENNIS #12SHELL WESTERN E&P INC.DRILL4,000
1985-12-1229271742-163-32469ROSENAUER, MATTIE #12SHELL WESTERN E&P INC.DRILL4,000
1985-12-1029237942-163-32468ROSENAUER, MATTIE #15SHELL WESTERN E&P INC.DRILL4,000
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Source: Texas Railroad Commission drilling permit master (OGA049M), refreshed daily. See also operators in Frio County.