Permits
3
Max Depth
8,700 ft
First Permit
1996-04-25
Latest Activity
2017-12-22
Lifespan
22 yrs
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
5,000 bbl/d
Max Pressure
2,100 psi
Injection Interval
4,200–5,300 ft
Injected (12mo)
81,796 bbl
Monthly injected volume (bbl, from H-10 filings through 2025-10-01)
Seismicity: no M2+ earthquakes recorded within 10 km in the last 24 months · TexNet catalog
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 (10) Elevation 3,072 ft (GR)
CSV| Formation | Top Depth (MD) | Subsea (+above / −below SL) |
|---|---|---|
| YATES | 2,830 ft | +242 ft |
| SAN ANDRES | 4,270 ft | -1,198 ft |
| CLEARFORK (Clear Fork) | 5,708 ft | -2,636 ft |
| CLFK | 5,708 ft | -2,636 ft |
| U. SPRABERRY | 7,141 ft | -4,069 ft |
| U. SPRBY | 7,141 ft | -4,069 ft |
| L. SPRABERRY | 7,974 ft | -4,902 ft |
| L. SPRBY | 7,974 ft | -4,902 ft |
| WLFCMPREEF | 8,632 ft | -5,560 ft |
| WOLFCAMP REEF (Wolfcamp) | 8,632 ft | -5,560 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 ↗
Offset Well Tops (nearest 8 wells with tops)
What nearby completed wells reported.
Nearest wells within 10 mi (surface locations). Click wells to select them, then open the cross-section to compare tops side by side (max 6 wells per section, including this one).
Perforations (2)
| Interval | Type |
|---|---|
| 4,636–4,847 ft | Perforated |
| 5,230–8,680 ft | Open hole |
Casing (2)
| Size | Set Depth | Cement |
|---|---|---|
| 13.375" | 511 ft | 400 sx |
| 8.625" | 5,230 ft | 1,650 sx |
Permit History (3)
Applications (3)
Records & Logs
5 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.
Well Details
- Well Number
- 221R
- Max Depth
- 8,700 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