42-311-36056
PRODUCING HorizontalY-BAR UNIT C
MCMULLEN County · District 1 · CASTLEROCK EF OPERATING LLC · EAGLEVILLE (EAGLE FORD-1)
Permits
2
Max Depth
10,000 ft
First Permit
2014-05-27
Latest Activity
2014-05-27
Lifespan
< 1 yr
Regulatory Status
Schedule
ON SCHEDULE
Completion
2014-09-28
Shut-In
—
Plugged
—
P-5 Org Status: X
EWA / Permit operator mismatch
Scheduling: CASTLEROCK EF OPERATING LLC ≠ Permit: MURPHY EXPL. & PROD. CO. - USA
Resolved via: production → CASTLEROCK EF OPERATING LLC
Production Summary Production data is a work in progress — still being validated against RRC filings. Spot something off or have questions? [email protected]
Cum Oil
— bbl
Cum Gas
— mcf
First Production
2014-06
Last Production
2026-07
Operator History
Chain of Custody
Lease Production
Production is reported at the lease level. View production data, decline curves, and history on the lease page.
Formation Tops (15) Elevation 352 ft (GR)
CSV| Formation | Top Depth (MD) | Subsea (+above / −below SL) |
|---|---|---|
| FRIO | 1,460 ft | -1,108 ft |
| FRIO - DISPOSAL (Frio) | 1,460 ft | -1,108 ft |
| CATAHOULA | 1,590 ft | -1,238 ft |
| CATAHOULA - DISPOSAL (Catahoula) | 1,590 ft | -1,238 ft |
| YEGUA | 2,890 ft | -2,538 ft |
| YEGUA - DISPOSAL (Yegua) | 2,890 ft | -2,538 ft |
| WILCOX | 4,750 ft | -4,398 ft |
| WILCOX - DISPOSAL (Wilcox) | 4,750 ft | -4,398 ft |
| NAVARRO | 6,324 ft | -5,972 ft |
| OLMOS | 7,253 ft | -6,901 ft |
| ESCONDIDO | 8,340 ft | -7,988 ft |
| UNDIFF CHALK | 8,647 ft | -8,295 ft |
| AUSTIN CHALK | 9,070 ft | -8,718 ft |
| EAGLEFORD (Eagle Ford) | 9,446 ft | -9,094 ft |
| ANACACHO | 9,480 ft | -9,128 ft |
As reported by operators on W-2/G-1 completion filings (RRC wellbore records). Depths are measured depth; names appear as filed. Subsea = reported elevation − measured depth (negative = below sea level; vertical wellbores only). View filings & logs at RRC ↗
Perforations (2)
| Interval | Type |
|---|---|
| 9,838–11,722 ft | Perforated |
| 12,416–14,431 ft | Perforated |
Casing (2)
| Size | Set Depth | Cement |
|---|---|---|
| 9.625" | 4,138 ft | 1,396 sx |
| 5.5" | 14,617 ft | 1,415 sx |
Permit History (2)
Applications (2)
Records & Logs
2 completion filings on record · 2 with log images at RRC.
Completion packets open directly (post-2011 filings include attached logs). Log images can't be deep-linked — clicking copies the API for you to paste.
No GPS coordinates yet
Well Details
- Well Number
- 1H
- Max Depth
- 10,000 ft
- Drill Type
- Horizontal
- County
- MCMULLEN
- District
- 1
- Operator
- CASTLEROCK EF OPERATING LLC
- Completed
- 2014-09-28
Operator
- Location
- SAN ANTONIO
- P-5 Status
- X (filed 2026-01-28)
- Cum Oil (all leases)
- 3,530,048 bbl
- Cum Gas (all leases)
- — mcf
- Activities
- OPRS/O
- Total Permits
- 34