← Frio County

Frio County Drilling Permits

Every permit issued by the Texas Railroad Commission in Frio County — updated daily, data through 2026-09-11.

Frio County permitting is running 7.0 permits a month over the trailing 90 days (21 total, level with the prior quarter). 2 were issued in the past week. FORMENTERA OPERATIONS LLC leads with 46 permits in the past 12 months, one of 7 operators active in the county.

Last 30 Days

8

Operators (30d)

2

Latest Permit

2026-09-11

All Time

4,301

4,301 permits
ISSUEDPERMITAPILEASEOPERATORTYPEDEPTHHZ
1986-08-2630566742-163-32526BURNS RANCH #1WILLIAMS, CLAYTON W., JR., INC.DRILL7,600
1986-08-1830535542-163-32525SHINER HEIRS #14WILLIAMS, CLAYTON W., JR., INC.DRILL7,600
1986-08-0830506942-163-32524SHINER RANCH -C- #206TEXACO PRODUCING INC.DRILL7,975
1986-06-1130326342-163-32523THOMPSON, CAROLYN A #1CUDE PETROLEUM, INC.DRILL1,000
1986-05-2330246742-163-32522MCKINNEY, MARY E. #2FAIR ENERGYDRILL4,500
1986-05-0630182542-163-32521SHINER RANCH -C- #204TEXACO PRODUCING INC.DRILL8,600
1986-05-0630182242-163-32519SHINER RANCH -B- #203TEXACO PRODUCING INC.DRILL8,600
1986-05-0630182442-163-32520SHINER RANCH -C- #205TEXACO PRODUCING INC.DRILL8,500
1986-04-2830151742-163-32518DEVINE FARMS #1BOLING PRODUCTION CO., INC.DRILL3,400
1986-04-1530108842-163-32517NICHOLSON "E" #2ASHER PETROLEUM CORP.DRILL7,100
1986-03-2530018842-163-32516BROWN, CHARLES F. #5COLSTAR PETROLEUM, CORP.DRILL3,750
1986-03-2129994642-163-32512BIG FOOT OLMOS B SAND UNIT #394ASHELL WESTERN E&P INC.DRILL4,000
1986-03-2129995342-163-32514BIG FOOT OLMOS B SAND UNIT #404ASHELL WESTERN E&P INC.DRILL4,000
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
page 62 of 87
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Source: Texas Railroad Commission drilling permit master (OGA049M), refreshed daily. See also operators in Frio County.