42-283-34950
Final Completion HorizontalSTS A
LA SALLE County · District 1 · SIERRA RESOURCES LLC · A.W.P. (OLMOS)
Permits
1
Max Depth
10,000 ft
First Permit
2014-07-01
Latest Activity
2014-07-01
Lifespan
< 1 yr
Regulatory Status
Schedule
OFF SCHEDULE
Completion
2015-02-02
Shut-In
—
Plugged
—
EWA / Production operator mismatch
Scheduling: SIERRA RESOURCES LLC ≠ Production: SILVERBOW RESOURCES OPER, LLC (reported 2026-04)
EWA / Permit operator mismatch
Scheduling: SIERRA RESOURCES LLC ≠ Permit: WELHAUSEN OPERATING COMPANY, LP
Resolved via: production → SILVERBOW RESOURCES OPER, 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
2013-12
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 (17) Elevation 350 ft (GR)
CSV| Formation | Top Depth (MD) | Subsea (+above / −below SL) |
|---|---|---|
| YEGUA | 861 ft | -511 ft |
| YEGUA | 864 ft | -514 ft |
| SPARTA | 1,756 ft | -1,406 ft |
| QUEEN CITY | 2,035 ft | -1,685 ft |
| REKLAW | 3,464 ft | -3,114 ft |
| CARRIZO | 3,986 ft | -3,636 ft |
| WALES | 5,160 ft | -4,810 ft |
| WILCOX - DISPOSAL (Wilcox) | 5,489 ft | -5,139 ft |
| ESCONDIDO | 7,616 ft | -7,266 ft |
| OLMOS - DISPOSAL (Olmos) | 8,976 ft | -8,626 ft |
| TAYLOR | 9,123 ft | -8,773 ft |
| OLMOS | 9,583 ft | -9,233 ft |
| OLMOS - DISPOSAL (Olmos) | 9,583 ft | -9,233 ft |
| AUSTIN CHALK | — | — |
| BUDA - H2S (Buda) | — | — |
| EAGLE FORD - H2S (Eagle Ford) | — | — |
| EDWARDS - H2S (Edwards) | — | — |
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 |
|---|---|
| 9,519–14,586 ft | Perforated |
Casing (3)
| Size | Set Depth | Cement |
|---|---|---|
| 9.625" | 4,960 ft | 1,628 sx |
| 5.5" | 8,217 ft | 2,063 sx |
| 4.5" | 14,652 ft | 2,063 sx |
Permit History (1)
Applications (1)
Records & Logs
6 completion filings on record · 3 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
- 4 H
- Max Depth
- 10,000 ft
- Drill Type
- Horizontal
- County
- LA SALLE
- District
- 1
- Operator
- SIERRA RESOURCES LLC
- Completed
- 2015-02-02
Operator
- Name
- SIERRA RES, LLC
- Location
- HOUSTON
- P-5 Status
- Inactive (filed 2020-09-04)
- Cum Oil (all leases)
- 4,381 bbl
- Cum Gas (all leases)
- 53,062,603 mcf
- Total Permits
- 72