42-103-33635
Final CompletionBLOCK 31 UNIT
CRANE County · District 8 · OXY USA EOR LLC · BLOCK 31 (DEVONIAN)
Permits
1
Max Depth
9,400 ft
First Permit
1985-03-20
Latest Activity
1985-03-20
Lifespan
< 1 yr
Regulatory Status
Schedule
OFF SCHEDULE
Completion
1990-07-28
Shut-In
—
Plugged
—
EWA / Production operator mismatch
Scheduling: OXY USA EOR LLC ≠ Production: OXY USA INC. (reported 2026-04)
EWA / Permit operator mismatch
Scheduling: OXY USA EOR LLC ≠ Permit: ARCO OIL & GAS CO.
Resolved via: production → OXY USA INC.
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 (8) Elevation 2,567 ft (GR)
CSV| Formation | Top Depth (MD) | Subsea (+above / −below SL) |
|---|---|---|
| GRAYBURG | 3,005 ft | -438 ft |
| PENN (Pennsylvanian) | 7,174 ft | -4,607 ft |
| BARNETT | 7,708 ft | -5,141 ft |
| BARNETT | 7,709 ft | -5,142 ft |
| WOODFORD | 8,047 ft | -5,480 ft |
| WOODFORD | 8,048 ft | -5,481 ft |
| DEVONIAN 31 (Devonian) | 8,239 ft | -5,672 ft |
| DEVONIAN | 8,251 ft | -5,684 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 (2)
| Interval | Type |
|---|---|
| 8,718–9,016 ft | Perforated |
| 8,719–9,014 ft | Perforated |
Casing (4)
| Size | Set Depth | Cement |
|---|---|---|
| 8.625" | 3,620 ft | 1,500 sx |
| 8.625" | 3,620 ft | 1,500 sx |
| 5.5" | 9,350 ft | 1,675 sx |
| 5.5" | 9,350 ft | 1,675 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
- A16A
- Max Depth
- 9,400 ft
- Drill Type
- Vertical
- County
- CRANE
- District
- 8
- Operator
- OXY USA EOR LLC
- Completed
- 1990-07-28
Operator
- Name
- OXY USA EOR, LLC
- Location
- HOUSTON
- P-5 Status
- Active (filed 2025-12-22)
- Cum Oil (all leases)
- — bbl
- Cum Gas (all leases)
- — mcf
- Activities
- OPRS/G, OPRS/O