42-321-31017
SHUT INOLD OCEAN UNIT
MATAGORDA County · District 3 · HILCORP ENERGY COMPANY · OLD OCEAN (ARMSTRONG)
Permits
1
Max Depth
10,150 ft
First Permit
1980-08-14
Latest Activity
1980-08-14
Lifespan
< 1 yr
Regulatory Status
Schedule
ON SCHEDULE
Completion
1980-11-07
Shut-In
—
Plugged
—
P-5 Org Status: X
EWA / Permit operator mismatch
Scheduling: HILCORP ENERGY COMPANY ≠ Permit: AMOCO PRODUCTION COMPANY
Resolved via: scheduling → HILCORP ENERGY COMPANY
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
No tops on file for this well. Formation tops come from W-2/G-1 completion filings — this well has none yet, which is normal for permits that were never drilled, dry holes plugged without a filing, or wells completed before digital records. Offset-well tops can't be shown either — this well has no surface coordinates on file yet.
Perforations (1)
| Interval | Type |
|---|---|
| 10,092–10,123 ft | Perforated |
Casing (4)
| Size | Set Depth | Cement |
|---|---|---|
| 16" | 102 ft | — |
| 9.625" | 2,505 ft | 1,105 sx |
| 2.375" | 9,937 ft | — |
| 5.5" | 10,135 ft | 750 sx |
Permit History (1)
Applications (1)
Records & Logs
1 completion filing on record.
Completion packets open directly (post-2011 filings include attached logs). Log images can't be deep-linked — clicking copies the API for you to paste.
No GPS coordinates yet
Well Details
- Well Number
- 231
- Max Depth
- 10,150 ft
- Drill Type
- Vertical
- County
- MATAGORDA
- District
- 3
- Operator
- HILCORP ENERGY COMPANY
- Completed
- 1980-11-07
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
- 3,429