42-391-00304
Final CompletionT-C OIL CO. O CONNOR
REFUGIO County · District 2 · T - C OIL COMPANY · LAKE PASTURE (FS-545)
Permits
3
Max Depth
6,250 ft
First Permit
1981-05-26
Latest Activity
2008-07-23
Lifespan
27 yrs
Regulatory Status
Schedule
OFF SCHEDULE
Completion
1981-05-28
Shut-In
—
Plugged
2011-06-24
EWA / Production operator mismatch
Scheduling: T - C OIL COMPANY ≠ Production: HILCORP ENERGY COMPANY (reported 2026-04)
Resolved via: production → 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 (6) Elevation 59 ft (GL)
CSV| Formation | Top Depth (MD) | Subsea (+above / −below SL) |
|---|---|---|
| LAGARTO | 1 ft | +58 ft |
| EOCENE | 2,250 ft | -2,191 ft |
| MIOCENE (Miocene (undifferentiated)) | 3,000 ft | -2,941 ft |
| CATAHOULA | 3,720 ft | -3,661 ft |
| GRETA | 4,380 ft | -4,321 ft |
| FRIO | 4,890 ft | -4,831 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 (5)
| Interval | Type |
|---|---|
| 4,970–4,976 ft | Perforated |
| 5,232–5,235 ft | Perforated |
| 5,664–5,670 ft | Perforated |
| ?–5,739 ft | Perforated |
| ?–5,944 ft | Perforated |
Casing (4)
| Size | Set Depth | Cement |
|---|---|---|
| 10.75" | 1,517 ft | 550 sx |
| 1.5" | 5,494 ft | — |
| 1.5" | 5,730 ft | — |
| 5.5" | 5,997 ft | 1,000 sx |
Permit History (3)
Applications (3)
Records & Logs
6 completion filings on record · 2 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
- 13
- Max Depth
- 6,250 ft
- Drill Type
- Vertical
- County
- REFUGIO
- District
- 2
- Operator
- T - C OIL COMPANY
- Completed
- 1981-05-28
Operator
- Name
- T - C OIL CO
- Location
- REFUGIO
- P-5 Status
- Inactive (filed 2011-11-07)
- Cum Oil (all leases)
- 15,292,994 bbl
- Cum Gas (all leases)
- 112,873,669 mcf
- Total Permits
- 1,009