Permits
5
Max Depth
5,911 ft
First Permit
1977-06-07
Latest Activity
2012-03-23
Lifespan
35 yrs
Regulatory Status
Schedule
OFF SCHEDULE
Completion
—
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 (16) Elevation 56 ft
CSV| Formation | Top Depth (MD) | Subsea (+above / −below SL) |
|---|---|---|
| LARGARTO (Lagarto) | 1,500 ft | -1,444 ft |
| SURFACE SAND CLAY | 1,500 ft | -1,444 ft |
| LARGARTO (Lagarto) | 2,750 ft | -2,694 ft |
| OAKVILLE | 2,750 ft | -2,694 ft |
| CATAHOULA(MIOCENE) (Catahoula) | 3,300 ft | -3,244 ft |
| OAKVILLE | 3,300 ft | -3,244 ft |
| ANAHUAC(MIOCENE) (Anahuac) | 4,100 ft | -4,044 ft |
| CATAHOULA (MIOCENE) (Catahoula) | 4,100 ft | -4,044 ft |
| ANAHUAC (MIOCENE) (Anahuac) | 4,365 ft | -4,309 ft |
| FRIO-GRETA(OLIGOCENE) (Frio) | 4,365 ft | -4,309 ft |
| FRIO-GRETA (OLIG) (Frio) | 4,758 ft | -4,702 ft |
| MIDDLE FRIO (SINTON) (Frio) | 5,000 ft | -4,944 ft |
| MIDDLE FRIO (SINTON) (Frio) | 5,400 ft | -5,344 ft |
| LOWER FRIO (OLIGOCENE) (Frio) | 5,880 ft | -5,824 ft |
| FRIO (OLIG) (Frio) | 5,911 ft | -5,855 ft |
| NO CHANGE | — | — |
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 (6)
| Interval | Type |
|---|---|
| 5,477–5,482 ft | Perforated |
| 5,516–5,520 ft | Perforated |
| 5,543–5,548 ft | Perforated |
| 5,715–5,721 ft | Perforated |
| 5,798–5,804 ft | Perforated |
| ?–5,701 ft | Perforated |
Casing (3)
| Size | Set Depth | Cement |
|---|---|---|
| 9.625" | 1,051 ft | 350 sx |
| 1.5" | 5,489 ft | — |
| 5" | 5,909 ft | 500 sx |
Permit History (5)
THOMAS O'CONNOR 'C' · 5,911 ft
2012-03-23
TOM O'CONNOR(5600 FOOT SAND)UNIT · 5,911 ft
2009-03-10
Spud 2009-03-11
O'CONNOR, THOMAS "C" · 5,911 ft
2007-07-14
Spud 2007-11-13
O'CONNOR, TOM (5800 SD) FLD UNIT · 5,911 ft
1999-12-10
Spud 1999-12-17
O'CONNOR, THOMAS "C" · 5,911 ft
1977-06-07
Applications (5)
Records & Logs
10 completion filings on record · 3 with log images at RRC.
+4 more filings
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
- 18
- Max Depth
- 5,911 ft
- Drill Type
- Vertical
- County
- REFUGIO
- District
- 2
- Operator
- HILCORP ENERGY COMPANY
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