42-135-40850
Final CompletionSHERRY
ECTOR County · District 8 · FIREBIRD ENERGY LLC · SALLIE ANN (SPRABERRY-WOLFCAMP)
Permits
2
Max Depth
11,500 ft
First Permit
2011-03-30
Latest Activity
2019-12-11
Lifespan
9 yrs
Regulatory Status
Schedule
OFF SCHEDULE
Completion
2012-06-16
Shut-In
—
Plugged
—
EWA / Production operator mismatch
Scheduling: FIREBIRD ENERGY LLC ≠ Production: DIAMONDBACK E&P LLC (reported 2026-04)
Resolved via: production → DIAMONDBACK E&P 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
2008-03
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 (4) Elevation 2,935 ft (GL)
CSV| Formation | Top Depth (MD) | Subsea (+above / −below SL) |
|---|---|---|
| CLEAR FORK | 5,775 ft | -2,840 ft |
| CLEARFORK (Clear Fork) | 5,775 ft | -2,840 ft |
| LOWER SPRABERRY (Spraberry) | 7,539 ft | -4,604 ft |
| WOLFCAMP | 9,138 ft | -6,203 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 ↗
Offset Well Tops (nearest 8 wells with tops)
What nearby completed wells reported.
Nearest wells within 10 mi (surface locations). Click wells to select them, then open the cross-section to compare tops side by side (max 6 wells per section, including this one).
Perforations (1)
| Interval | Type |
|---|---|
| 7,882–10,161 ft | Perforated |
Casing (3)
| Size | Set Depth | Cement |
|---|---|---|
| 12.75" | 317 ft | 150 sx |
| 8.625" | 4,775 ft | 1,194 sx |
| 5.5" | 10,250 ft | 884 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 and the UL library can't be deep-linked — clicking copies the API for you to paste.
Well Details
- Well Number
- 12
- Max Depth
- 11,500 ft
- Drill Type
- Vertical
- County
- ECTOR
- District
- 8
- Operator
- FIREBIRD ENERGY LLC
- Completed
- 2012-06-16
Operator
- Name
- FIREBIRD ENGY LLC
- Location
- FORT WORTH
- P-5 Status
- Delinquent (filed 2023-04-26)
- Cum Oil (all leases)
- 10,133,635 bbl
- Cum Gas (all leases)
- 424,502 mcf
- Total Permits
- 152