42-283-34660
PRODUCING HorizontalY-BAR WEST UNIT A
LA SALLE County · District 1 · CASTLEROCK EF OPERATING LLC · EAGLEVILLE (EAGLE FORD-1)
Permits
1
Max Depth
10,000 ft
First Permit
2014-03-24
Latest Activity
2014-03-24
Lifespan
< 1 yr
Regulatory Status
Schedule
ON SCHEDULE
Completion
2014-06-25
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 (10) Elevation 373 ft (GR)
CSV| Formation | Top Depth (MD) | Subsea (+above / −below SL) |
|---|---|---|
| ESCONDIDO | 6,060 ft | -5,687 ft |
| OLMOS - DISPOSAL (Olmos) | 7,036 ft | -6,663 ft |
| ANACACHO | 8,482 ft | -8,109 ft |
| AUSTIN CHALK | 8,606 ft | -8,233 ft |
| EAGLE FORD - H2S (Eagle Ford) | 9,260 ft | -8,887 ft |
| BUDA - H2S (Buda) | — | — |
| QUEEN CITY | — | — |
| SPARTA | — | — |
| WILCOX - DISPOSAL (Wilcox) | — | — |
| 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 |
|---|---|
| 9,772–16,004 ft | Perforated |
Casing (2)
| Size | Set Depth | Cement |
|---|---|---|
| 9.625" | 3,950 ft | 1,301 sx |
| 5.5" | 16,118 ft | 2,330 sx |
Permit History (1)
Applications (1)
Records & Logs
1 completion filing 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
- 1H
- Max Depth
- 10,000 ft
- Drill Type
- Horizontal
- County
- LA SALLE
- District
- 1
- Operator
- CASTLEROCK EF OPERATING LLC
- Completed
- 2014-06-25
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