42-461-33485
Final CompletionPEGASUS SPRABERRY UNIT
UPTON County · District 7 · COG OPERATING LLC · PEGASUS (SPRABERRY)
Permits
1
Max Depth
9,000 ft
First Permit
1994-03-07
Latest Activity
1994-03-07
Lifespan
< 1 yr
Regulatory Status
Schedule
OFF SCHEDULE
Completion
1995-05-30
Shut-In
—
Plugged
—
EWA / Permit operator mismatch
Scheduling: COG OPERATING LLC ≠ Permit: MOBIL PRODUCING TX. & N.M. INC.
Resolved via: production → COG 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 (6) Elevation 2,873 ft (GL)
CSV| Formation | Top Depth (MD) | Subsea (+above / −below SL) |
|---|---|---|
| YATES | 2,675 ft | +198 ft |
| QUEEN | 4,065 ft | -1,192 ft |
| GRAYBURG | 4,194 ft | -1,321 ft |
| SAN ANDRES | 4,713 ft | -1,840 ft |
| CLEARFORK (Clear Fork) | 5,953 ft | -3,080 ft |
| SPRABERRY | 7,580 ft | -4,707 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 (1)
| Interval | Type |
|---|---|
| 7,580–8,468 ft | Perforated |
Casing (2)
| Size | Set Depth | Cement |
|---|---|---|
| 8.625" | 395 ft | 250 sx |
| 4.5" | 8,800 ft | 685 sx |
Permit History (1)
Applications (1)
Records & Logs
3 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.
No GPS coordinates yet
Well Details
- Well Number
- 1615
- Max Depth
- 9,000 ft
- Drill Type
- Vertical
- County
- UPTON
- District
- 7
- Operator
- COG OPERATING LLC
- Completed
- 1995-05-30
Operator
- Name
- COG OPER LLC
- Location
- MIDLAND
- P-5 Status
- X (filed 2026-06-02)
- Cum Oil (all leases)
- 645,285,792 bbl
- Cum Gas (all leases)
- 305,183,488 mcf
- Activities
- OPRS/G, OPRS/O
- Total Permits
- 4,550