Permits
1
Max Depth
5,800 ft
First Permit
2014-07-10
Latest Activity
2014-07-10
Lifespan
< 1 yr
Regulatory Status
Schedule
OFF SCHEDULE
Completion
—
Shut-In
—
Plugged
—
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
Permitted Volume
2,000 bbl/d
Max Pressure
2,000 psi
Injection Interval
4,500–5,600 ft
Injected (12mo)
200,147 bbl
Monthly injected volume (bbl, from H-10 filings through 2025-09-01)
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 (6) Elevation 3,545 ft (DF)
CSV| Formation | Top Depth (MD) | Subsea (+above / −below SL) |
|---|---|---|
| YATES | 2,855 ft | +690 ft |
| GRAYBURG | 3,990 ft | -445 ft |
| SAN ANDRES | 4,240 ft | -695 ft |
| SAN ANDRES I (San Andres) | 4,656 ft | -1,111 ft |
| SAN ANDRES II (San Andres) | 4,698 ft | -1,153 ft |
| SAN ANDRES III (San Andres) | 4,718 ft | -1,173 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 (3)
| Interval | Type |
|---|---|
| 4,876–5,003 ft | Perforated |
| 4,876–5,037 ft | Perforated |
| 5,085–5,232 ft | Open hole |
Casing (3)
| Size | Set Depth | Cement |
|---|---|---|
| 9.625" | 414 ft | 300 sx |
| 9.625" | 415 ft | 300 sx |
| 7" | 5,085 ft | 1,700 sx |
Permit History (1)
Applications (1)
Records & Logs
4 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
- 8521WC
- Max Depth
- 5,800 ft
- Drill Type
- Vertical
- County
- GAINES
- District
- 8
- Operator
- OCCIDENTAL PERMIAN LTD.
Operator
- Location
- HOUSTON
- P-5 Status
- Active (filed 2026-02-02)
- Cum Oil (all leases)
- 1,136,409,534 bbl
- Cum Gas (all leases)
- 442,977,611 mcf
- Activities
- CSGD/G, CSGD/P, G/PUR, GTHS/C, GTHS/G, GTHS/O, OPRS/G, OPRS/O
- Total Permits
- 6,203