42-283-33728
PRODUCING HorizontalY-BAR
LA SALLE County · District 1 · CASTLEROCK EF OPERATING LLC · EAGLEVILLE (EAGLE FORD-1)
Permits
2
Max Depth
9,885 ft
First Permit
2013-01-17
Latest Activity
2013-01-17
Lifespan
< 1 yr
Regulatory Status
Schedule
ON SCHEDULE
Completion
2014-04-24
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
2011-07
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 (13) Elevation 372 ft (GR)
CSV| Formation | Top Depth (MD) | Subsea (+above / −below SL) |
|---|---|---|
| QUEEN CITY | 1,281 ft | -909 ft |
| WILCOX - DISPOSAL (Wilcox) | 3,863 ft | -3,491 ft |
| OLMOS | 7,256 ft | -6,884 ft |
| OLMOS - DISPOSAL (Olmos) | 7,256 ft | -6,884 ft |
| CHALK | 8,649 ft | -8,277 ft |
| AUSTIN CHALK | 8,932 ft | -8,560 ft |
| EAGLE FORD - H2S (Eagle Ford) | 9,341 ft | -8,969 ft |
| EAGLEFORD (Eagle Ford) | 9,347 ft | -8,975 ft |
| BUDA - H2S (Buda) | — | — |
| EDWARDS - H2S (Edwards) | — | — |
| ESCONDIDO | — | — |
| SPARTA | — | — |
| YEGUA | — | — |
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 (1)
| Interval | Type |
|---|---|
| 9,886–15,673 ft | Perforated |
Casing (2)
| Size | Set Depth | Cement |
|---|---|---|
| 10.75" | 4,006 ft | 1,007 sx |
| 5.5" | 15,836 ft | 3,190 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
- 12H
- Max Depth
- 9,885 ft
- Drill Type
- Horizontal
- County
- LA SALLE
- District
- 1
- Operator
- CASTLEROCK EF OPERATING LLC
- Completed
- 2014-04-24
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