42-461-36475
PRODUCINGUNIVERSITYVINCENT
UPTON County · District 7 · EXTEX OPERATING COMPANY · SHEEP MOUNTAIN (CONSOLIDATED)
Permits
1
Max Depth
11,000 ft
First Permit
2009-12-02
Latest Activity
2009-12-02
Lifespan
< 1 yr
Regulatory Status
Schedule
ON SCHEDULE
Completion
2010-02-28
Shut-In
—
Plugged
—
P-5 Org Status: Active
EWA / Permit operator mismatch
Scheduling: EXTEX OPERATING COMPANY ≠ Permit: COG OPERATING LLC
Resolved via: production → EXTEX OPERATING COMPANY
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
2008-08
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 2,637 ft (GR)
CSV| Formation | Top Depth (MD) | Subsea (+above / −below SL) |
|---|---|---|
| SPRABERRY | 6,730 ft | -4,093 ft |
| DEAN | 8,085 ft | -5,448 ft |
| LOWER WOLFCAMP (Wolfcamp) | 8,505 ft | -5,868 ft |
| BASE BIG LIME | 9,810 ft | -7,173 ft |
| STRAWN | 9,980 ft | -7,343 ft |
| PENN DETRITAL (Pennsylvanian) | 10,340 ft | -7,703 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 |
|---|---|
| 8,910–10,480 ft | Perforated |
Casing (2)
| Size | Set Depth | Cement |
|---|---|---|
| 9.625" | 514 ft | 315 sx |
| 5.5" | 10,685 ft | 750 sx |
Permit History (1)
Applications (1)
Records & Logs
2 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
- 407
- Max Depth
- 11,000 ft
- Drill Type
- Vertical
- County
- UPTON
- District
- 7
- Operator
- EXTEX OPERATING COMPANY
- Completed
- 2010-02-28
Operator
- Name
- EXTEX OPER CO
- Location
- HOUSTON
- P-5 Status
- Active (filed 2026-01-07)
- Cum Oil (all leases)
- 5,887,486 bbl
- Cum Gas (all leases)
- 10,031,045 mcf
- Activities
- OPRS/G, OPRS/O
- Total Permits
- 117