42-003-35496
UNOLLEY WOLFCAMP UNIT
ANDREWS County · District 8 · CRESCENT ENERGY OPERATING LLC · NOLLEY (WOLFCAMP)
Permits
1
Max Depth
9,600 ft
First Permit
1986-02-20
Latest Activity
1986-02-20
Lifespan
< 1 yr
Regulatory Status
Schedule
OFF SCHEDULE
Completion
1986-12-02
Shut-In
—
Plugged
2016-05-24
EWA / Permit operator mismatch
Scheduling: CRESCENT ENERGY OPERATING LLC ≠ Permit: MOBIL PRODUCING TX. & N.M. INC.
Resolved via: production → CRESCENT ENERGY 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
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 (8) Elevation 3,167 ft (KB)
CSV| Formation | Top Depth (MD) | Subsea (+above / −below SL) |
|---|---|---|
| RUSTLER | 2,238 ft | +929 ft |
| YATES | 3,418 ft | -251 ft |
| QUEEN | 4,635 ft | -1,468 ft |
| SAN ANDRES | 5,199 ft | -2,032 ft |
| LOWER CLEARFORK (Clear Fork) | 7,728 ft | -4,561 ft |
| WICHITA ALBANY (Wichita-Albany) | 7,881 ft | -4,714 ft |
| SPRABERRY | 8,280 ft | -5,113 ft |
| WOLFCAMP | 9,044 ft | -5,877 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 |
|---|---|
| 9,044–9,100 ft | Perforated |
| 9,302–9,492 ft | Perforated |
Casing (6)
| Size | Set Depth | Cement |
|---|---|---|
| 13.375" | 450 ft | 450 sx |
| 13.375" | 450 ft | — |
| 8.375" | 5,700 ft | 2,900 sx |
| 8.375" | 5,700 ft | — |
| 5.5" | 9,535 ft | 1,150 sx |
| 5.5" | 9,535 ft | — |
Permit History (1)
Applications (2)
Records & Logs
3 completion filings on record · 1 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.
No GPS coordinates yet
Well Details
- Well Number
- 508
- Max Depth
- 9,600 ft
- Drill Type
- Vertical
- County
- ANDREWS
- District
- 8
- Operator
- CRESCENT ENERGY OPERATING LLC
- Completed
- 1986-12-02
Operator
- Location
- HOUSTON
- P-5 Status
- Active (filed 2025-08-28)
- Cum Oil (all leases)
- 10,867,426 bbl
- Cum Gas (all leases)
- 2,390,025 mcf
- Activities
- OPRS/G, OPRS/O
- Total Permits
- 20