42-103-33163
Final CompletionBLOCK 31 UNIT
CRANE County · District 8 · OXY USA EOR LLC · BLOCK 31 (DEVONIAN)
Permits
3
Max Depth
9,075 ft
First Permit
1983-05-17
Latest Activity
2019-04-05
Lifespan
36 yrs
Regulatory Status
Schedule
OFF SCHEDULE
Completion
1983-07-21
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: OXY USA INC.
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 (5) Elevation 2,585 ft (GL)
CSV| Formation | Top Depth (MD) | Subsea (+above / −below SL) |
|---|---|---|
| GRAYBURG | 3,066 ft | -481 ft |
| GLORIETA | 4,246 ft | -1,661 ft |
| PENN (Pennsylvanian) | 7,290 ft | -4,705 ft |
| ATOKA | 7,753 ft | -5,168 ft |
| DEVONIAN | 8,816 ft | -6,231 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 (3)
| Interval | Type |
|---|---|
| 7,902–7,908 ft | Perforated |
| 7,917–7,933 ft | Perforated |
| 8,827–8,977 ft | Perforated |
Casing (6)
| Size | Set Depth | Cement |
|---|---|---|
| 12.75" | 30 ft | — |
| 8.625" | 2,650 ft | 900 sx |
| 8.625" | 2,650 ft | — |
| 2.375" | 8,715 ft | — |
| 5.5" | 9,075 ft | 1,650 sx |
| 5.5" | 9,075 ft | — |
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
- N 5N
- Max Depth
- 9,075 ft
- Drill Type
- Vertical
- County
- CRANE
- District
- 8
- Operator
- OXY USA EOR LLC
- Completed
- 1983-07-21
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