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LA SALLE County · District 1 · CASTLEROCK EF OPERATING LLC · EAGLEVILLE (EAGLE FORD-1)
Permits
1
Max Depth
9,885 ft
First Permit
2012-12-20
Latest Activity
2012-12-20
Lifespan
< 1 yr
Regulatory Status
Schedule
ON SCHEDULE
Completion
2013-10-11
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 (5) Elevation 372 ft (GR)
CSV| Formation | Top Depth (MD) | Subsea (+above / −below SL) |
|---|---|---|
| OLMOS | 7,233 ft | -6,861 ft |
| CHALK | 8,635 ft | -8,263 ft |
| UNDIFFERENTIATED CHALK | 8,635 ft | -8,263 ft |
| EAGLE FORD | 9,423 ft | -9,051 ft |
| EAGLEFORD (Eagle Ford) | 9,423 ft | -9,051 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 (1)
| Interval | Type |
|---|---|
| 9,957–15,655 ft | Perforated |
Casing (2)
| Size | Set Depth | Cement |
|---|---|---|
| 10.75" | 4,050 ft | 1,180 sx |
| 5.5" | 15,780 ft | 1,955 sx |
Permit History (1)
Applications (1)
Records & Logs
2 completion filings on record · 1 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
- 21H
- Max Depth
- 9,885 ft
- Drill Type
- Horizontal
- County
- LA SALLE
- District
- 1
- Operator
- CASTLEROCK EF OPERATING LLC
- Completed
- 2013-10-11
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