Permits
4
Max Depth
10,000 ft
First Permit
1988-03-02
Latest Activity
2008-05-09
Lifespan
20 yrs
Regulatory Status
Schedule
OFF SCHEDULE
Completion
—
Shut-In
—
Plugged
1988-04-07
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
2008-05
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 (3) Elevation 2,658 ft (GL)
CSV| Formation | Top Depth (MD) | Subsea (+above / −below SL) |
|---|---|---|
| UPPER SPRABERRY (Spraberry) | 6,870 ft | -4,212 ft |
| LOWER SPRABERRY (Spraberry) | 7,260 ft | -4,602 ft |
| DEAN | 8,090 ft | -5,432 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 |
|---|---|
| 6,878–8,795 ft | Perforated |
Casing (4)
| Size | Set Depth | Cement |
|---|---|---|
| 13.375" | 380 ft | 370 sx |
| 8.625" | 3,577 ft | 1,275 sx |
| 5.5" | 9,425 ft | 770 sx |
| 5.5" | — | 260 sx |
Permit History (4)
Applications (4)
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
- 4R
- Max Depth
- 10,000 ft
- Drill Type
- Vertical
- County
- MARTIN
- District
- 8
- Operator
- COBRA OIL & GAS CORPORATION
Operator
- Location
- WICHITA FAL, LS
- P-5 Status
- X (filed 2026-03-18)
- Cum Oil (all leases)
- 20,073,588 bbl
- Cum Gas (all leases)
- 30,503,954 mcf
- Activities
- OPRS/G, OPRS/O
- Total Permits
- 778