42-283-35511
Final Completion HorizontalSTS A
LA SALLE County · District 1 · SIERRA RESOURCES LLC · A.W.P. (OLMOS)
Permits
1
Max Depth
9,360 ft
First Permit
2015-06-02
Latest Activity
2015-06-02
Lifespan
< 1 yr
Regulatory Status
Schedule
OFF SCHEDULE
Completion
2015-09-14
Shut-In
—
Plugged
—
EWA / Production operator mismatch
Scheduling: SIERRA RESOURCES LLC ≠ Production: SILVERBOW RESOURCES OPER, LLC (reported 2026-03)
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 (10) Elevation 385 ft (GL)
CSV| Formation | Top Depth (MD) | Subsea (+above / −below SL) |
|---|---|---|
| YEGUA | 1,081 ft | -696 ft |
| SPARTA | 1,949 ft | -1,564 ft |
| QUEEN CITY | 2,226 ft | -1,841 ft |
| WILCOX - DISPOSAL (Wilcox) | 5,639 ft | -5,254 ft |
| ESCONDIDO | 7,708 ft | -7,323 ft |
| OLMOS - DISPOSAL (Olmos) | 9,141 ft | -8,756 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 |
|---|---|
| 9,700–15,151 ft | Perforated |
Casing (3)
| Size | Set Depth | Cement |
|---|---|---|
| 10.75" | 797 ft | 397 sx |
| 7.625" | 8,917 ft | 1,056 sx |
| 4.5" | 15,292 ft | 1,144 sx |
Permit History (1)
Applications (1)
Records & Logs
4 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
- 8H
- Max Depth
- 9,360 ft
- Drill Type
- Horizontal
- County
- LA SALLE
- District
- 1
- Operator
- SIERRA RESOURCES LLC
- Completed
- 2015-09-14
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