42-115-31519
Final CompletionPOPNOE
DAWSON County · District 8 · BYRD OPERATING COMPANY · FELKEN (SPRABERRY)
Permits
1
Max Depth
7,800 ft
First Permit
1981-05-06
Latest Activity
1981-05-06
Lifespan
< 1 yr
Regulatory Status
Schedule
OFF SCHEDULE
Completion
1993-05-27
Shut-In
—
Plugged
—
EWA / Production operator mismatch
Scheduling: BYRD OPERATING COMPANY ≠ Production: PETX OPERATING LLC (reported 2026-04)
EWA / Permit operator mismatch
Scheduling: BYRD OPERATING COMPANY ≠ Permit: WILSON, WM. B. & SONS, INC.
Resolved via: production → PETX 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
1993-01
Last Production
2026-07
Injection / Disposal
DAWSON County disposal market →Permitted Volume
750 bbl/d
Max Pressure
1,750 psi
Injection Interval
6,600–7,555 ft
Injected (12mo)
179,697 bbl
Monthly injected volume (bbl, from H-10 filings through 2025-08-01)
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 2,983 ft (GR)
CSV| Formation | Top Depth (MD) | Subsea (+above / −below SL) |
|---|---|---|
| SAN ANDRES | 3,628 ft | -645 ft |
| UPPER SPRABERRY (Spraberry) | 6,576 ft | -3,593 ft |
| UPPER SRAYBERRY | 6,576 ft | -3,593 ft |
| LOWER SPRABERRY (Spraberry) | 7,192 ft | -4,209 ft |
| JO-MILL (Jo Mill) | 7,432 ft | -4,449 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 (2)
| Interval | Type |
|---|---|
| 6,740–6,756 ft | Perforated |
| 7,526–7,555 ft | Perforated |
Casing (4)
| Size | Set Depth | Cement |
|---|---|---|
| 12.75" | 356 ft | 400 sx |
| 8.625" | 3,620 ft | 300 sx |
| 2.875" | 7,521 ft | — |
| 5.5" | 7,650 ft | 350 sx |
Permit History (1)
Applications (1)
Records & Logs
5 completion filings on record.
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.
No GPS coordinates yet
Well Details
- Well Number
- 1
- Max Depth
- 7,800 ft
- Drill Type
- Vertical
- County
- DAWSON
- District
- 8
- Operator
- BYRD OPERATING COMPANY
- Completed
- 1993-05-27
Operator
- Name
- BYRD OPER CO
- Location
- MIDLAND
- P-5 Status
- Active (filed 2025-08-27)
- Cum Oil (all leases)
- 3,284,979 bbl
- Cum Gas (all leases)
- 13,497,915 mcf
- Activities
- OPRS/G, OPRS/O
- Total Permits
- 68