42-103-32143
Final CompletionBLOCK 31 UNIT
CRANE County · District 8 · OXY USA EOR LLC · BLOCK 31 (DEVONIAN)
Permits
4
Max Depth
9,210 ft
First Permit
1979-09-07
Latest Activity
2019-10-21
Lifespan
40 yrs
Regulatory Status
Schedule
OFF SCHEDULE
Completion
1979-11-01
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 (12) Elevation 2,555 ft (GL)
CSV| Formation | Top Depth (MD) | Subsea (+above / −below SL) |
|---|---|---|
| WOLFCAMP LS (Wolfcamp) | 6,911 ft | -4,356 ft |
| CISCO - PENN DETRITAL (Cisco) | 7,159 ft | -4,604 ft |
| CISCO PENN-DETRITAL (Cisco) | 7,159 ft | -4,604 ft |
| CISCO-PENN DETRITAL (Cisco) | 7,159 ft | -4,604 ft |
| CANYON | 7,290 ft | -4,735 ft |
| CANYON | 7,298 ft | -4,743 ft |
| UPPER STRAWN (Strawn) | 7,453 ft | -4,898 ft |
| BARNETT | 7,613 ft | -5,058 ft |
| OSAGE (MISS LIME) | 8,119 ft | -5,564 ft |
| WOODFORD | 8,149 ft | -5,594 ft |
| DEVONIAN | 8,338 ft | -5,783 ft |
| ATOKA | 8,549 ft | -5,994 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 (4)
| Interval | Type |
|---|---|
| 7,323–7,497 ft | Perforated |
| 7,323–7,614 ft | Perforated |
| 8,414–8,977 ft | Perforated |
| 8,822–8,977 ft | Perforated |
Casing (3)
| Size | Set Depth | Cement |
|---|---|---|
| 8.625" | 2,550 ft | 900 sx |
| 2.875" | 8,736 ft | — |
| 5.5" | 9,210 ft | 2,000 sx |
Permit History (4)
BLOCK 31 UNIT · 9,210 ft
2019-10-21
Spud 2020-01-06
BLOCK 31 UNIT · 9,210 ft
2018-03-05
BLOCK 31 UNIT · 9,210 ft
2018-03-05
Spud 2018-05-11
BLOCK 31 UNIT · 9,210 ft
1979-09-07
Spud 1979-09-10
Applications (4)
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.
Well Details
- Well Number
- L 4
- Max Depth
- 9,210 ft
- Drill Type
- Vertical
- County
- CRANE
- District
- 8
- Operator
- OXY USA EOR LLC
- Completed
- 1979-11-01
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