OPERATORS · TEXAS · P-5 NUMBER 100156 · MCMULLEN COUNTY

Castlerock EF Operating LLC in McMullen County

One operator, one county: its permits, wells of record, formations, and leases here, with the rest of the county and the rest of the operator one click away.

Castlerock Ef Operating LLC has 21 drilling permits on file in Mcmullen County, the first issued in 2014 and the latest on September 25, 2024.

None were issued in the last twelve months.

It is operator of record on 32 wells in the county: 16 producing, 16 shut in, 0 injection.

Its completed wells here most often report Olmos, Eagle Ford, Anacacho.

0
permits, 12 months
21
permits, all time since 2014
—
horizontal, 12 months
—
ft average depth, 12 months
32
wells of record
16
producing · 16 shut in · 0 injection

Permits issued by month

LAST FIVE YEARS · MCMULLEN ONLY

Last 12 months 0 · prior 12 0

051020222023202420252026

Latest permits here

IssuedLease / wellTypeDepth
Sep 25, 2024Y-Bar #160H 898332DrillHZ10,000
Sep 25, 2024Y-Bar 160H Unit #160H 898332DrillHZ10,000
Sep 25, 2024Y-Bar #150H 898331DrillHZ10,000
Mar 20, 2024Y-Bar #180H 898282DrillHZ10,000
Mar 20, 2024Y-Bar A #180H 898282DrillHZ10,000
Mar 20, 2024Y-Bar #170H 898281DrillHZ10,000
Mar 20, 2024Y-Bar 170H Unit #170H 898281DrillHZ10,000
Sep 1, 2023CRX Ybar A #10H 893329DrillHZ14,000
Sep 1, 2023CRX Ybar #9H 893210DrillHZ14,000
Aug 30, 2023CRX Ybar #8H 893209DrillHZ14,000

All 21 permits in McMullen County, searchable → ·  Wells of record here →

Permit types and formations

Permit types

Drill
0 / 21

12 MONTHS / ALL TIME

Leases it reports here

LeaseWellsOil, bblLast reported
Y-Bar323.77MJul 2026
CRX Ybar51.05MJul 2026
Y-Bar Unit A3339KJul 2026
Y Bar MCM2277KJul 2026
Y-Bar 170H Unit1228KJul 2026
Y-Bar Unit C2212KJul 2026
Y-Bar 160H Unit1207KJul 2026
CRX Ybar E1173KJul 2026
Y-Bar East1156KJul 2026
Y-Bar A1108KJul 2026
Y-Bar East Unit A192.4KJul 2026

All leases it reports → ·  Other operators in McMullen County →

About this data

Permits from the RRC OGA049M master and daily daf420 files; wells of record and status from the EWA wellbore schedule, weekly; formations from the dbf900 wellbore file; leases from PDQ lease reports, placed in the county by the wells completed on them.

Developers: this page as JSON is GET /v1/data/operators/tx/100156/counties/mcmullen, documented in the API reference.