42-103-35120
PRODUCINGBLOCK 31 UNIT
CRANE County · District 8 · HILCORP ENERGY COMPANY · BLOCK 31 (DEVONIAN)
Permits
1
Max Depth
9,400 ft
First Permit
2005-05-12
Latest Activity
2005-05-12
Lifespan
< 1 yr
Regulatory Status
Schedule
ON SCHEDULE
Completion
2005-10-31
Shut-In
—
Plugged
—
P-5 Org Status: X
EWA / Production operator mismatch
Scheduling: HILCORP ENERGY COMPANY ≠ Production: OXY USA INC. (reported 2026-04)
EWA / Permit operator mismatch
Scheduling: HILCORP ENERGY COMPANY ≠ Permit: BP AMERICA PRODUCTION COMPANY
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
2005-10
Last Production
2026-07
Lease Production
Production is reported at the lease level. View production data, decline curves, and history on the lease page.
Formation Tops (1) Elevation 2,561 ft (GR)
CSV| Formation | Top Depth (MD) | Subsea (+above / −below SL) |
|---|---|---|
| DEVONIAN | 4,095 ft | -1,534 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 |
|---|---|
| 8,582–8,886 ft | Perforated |
| 9,001–9,005 ft | Perforated |
Casing (4)
| Size | Set Depth | Cement |
|---|---|---|
| 13.375" | 803 ft | 690 sx |
| 8.625" | 3,650 ft | 825 sx |
| 7" | 4,237 ft | 310 sx |
| 4.5" | 9,090 ft | 425 sx |
Permit History (1)
Applications (1)
Records & Logs
2 completion filings on record · 1 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.
No GPS coordinates yet
Well Details
- Well Number
- 10
- Max Depth
- 9,400 ft
- Drill Type
- Vertical
- County
- CRANE
- District
- 8
- Operator
- HILCORP ENERGY COMPANY
- Completed
- 2005-10-31
Operator
- Name
- HILCORP ENGY CO
- Location
- HOUSTON
- P-5 Status
- X (filed 2026-03-27)
- Cum Oil (all leases)
- 75,699,281 bbl
- Cum Gas (all leases)
- 1,779,939,645 mcf
- Activities
- CSGD/G, CSGD/P, G/PUR, GTHS/C, GTHS/G, GTHS/O, OPRS/G, OPRS/O
- Total Permits
- 3,430