42-039-03946
Final CompletionOLD OCEAN UNIT
BRAZORIA County · District 3 · HILCORP ENERGY COMPANY · OLD OCEAN (LARSEN)
Permits
1
Max Depth
10,790 ft
First Permit
2008-10-04
Latest Activity
2008-10-04
Lifespan
< 1 yr
Regulatory Status
Schedule
OFF SCHEDULE
Completion
1969-08-30
Shut-In
—
Plugged
—
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
Lease Production
Production is reported at the lease level. View production data, decline curves, and history on the lease page.
Formation Tops (4) Elevation 50 ft (KB)
CSV| Formation | Top Depth (MD) | Subsea (+above / −below SL) |
|---|---|---|
| CHENAULT | 9,630 ft | -9,580 ft |
| ARMSTRONG | 9,916 ft | -9,866 ft |
| CAMPBELL | 10,402 ft | -10,352 ft |
| LARSEN | 10,507 ft | -10,457 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 (1)
| Interval | Type |
|---|---|
| 10,114–10,124 ft | Perforated |
Casing (8)
| Size | Set Depth | Cement |
|---|---|---|
| 13.375" | 1,506 ft | 500 sx |
| 13.375" | 1,506 ft | — |
| 9.625" | 7,010 ft | 500 sx |
| 9.625" | 7,010 ft | — |
| 7" | 9,860 ft | — |
| 7" | 10,215 ft | 500 sx |
| 7" | 10,245 ft | 500 sx |
| 3" | 10,394 ft | — |
Permit History (1)
Applications (1)
Records & Logs
6 completion filings on record · 1 with log images at RRC.
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
- 166
- Max Depth
- 10,790 ft
- Drill Type
- Vertical
- County
- BRAZORIA
- District
- 3
- Operator
- HILCORP ENERGY COMPANY
- Completed
- 1969-08-30
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
- 3,428