42-391-00267
Final CompletionT-C OIL CO.- O CONNOR
REFUGIO County · District 2 · T-C OIL COMPANY LLC · LAKE PASTURE (H-440 SAND)
Permits
1
Max Depth
4,525 ft
First Permit
2004-07-09
Latest Activity
2004-07-09
Lifespan
< 1 yr
Regulatory Status
Schedule
OFF SCHEDULE
Completion
2015-02-12
Shut-In
—
Plugged
2022-03-25
EWA / Production operator mismatch
Scheduling: T-C OIL COMPANY LLC ≠ Production: HILCORP ENERGY COMPANY (reported 2026-04)
EWA / Permit operator mismatch
Scheduling: T-C OIL COMPANY LLC ≠ Permit: T - C OIL COMPANY
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
Injection / Disposal
Permitted Volume
2,000 bbl/d
Max Pressure
2,000 psi
Injection Interval
5,700–5,704 ft
Injected (12mo)
—
Permitted Volume
—
Max Pressure
—
Injection Interval
—
Injected (12mo)
—
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 (13) Elevation 61 ft
CSV| Formation | Top Depth (MD) | Subsea (+above / −below SL) |
|---|---|---|
| LAGARTO | 1 ft | +60 ft |
| MIOCENE (Miocene (undifferentiated)) | 2,094 ft | -2,033 ft |
| LARGARTO (Lagarto) | 2,750 ft | -2,689 ft |
| OAKVILLE | 3,300 ft | -3,239 ft |
| CATAHOULA | 3,803 ft | -3,742 ft |
| CATAHOULA | 4,100 ft | -4,039 ft |
| ANAHUAC | 4,365 ft | -4,304 ft |
| GRETA | 4,421 ft | -4,360 ft |
| FRIO-GRETA (Frio) | 4,785 ft | -4,724 ft |
| FRIO | 5,086 ft | -5,025 ft |
| MIDDLE FRIO (Frio) | 5,400 ft | -5,339 ft |
| LOWER FRIO (Frio) | 6,586 ft | -6,525 ft |
| LAGARTO | — | — |
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 (4)
| Interval | Type |
|---|---|
| 4,474–4,480 ft | Perforated |
| 4,484–4,492 ft | Perforated |
| 5,772–5,782 ft | Perforated |
| ?–4,475 ft | Perforated |
Casing (4)
| Size | Set Depth | Cement |
|---|---|---|
| 10.75" | 1,520 ft | 602 sx |
| 10.75" | 1,520 ft | 602 sx |
| 5.5" | 5,788 ft | 1,094 sx |
| 5.5" | 5,788 ft | 1,094 sx |
Permit History (1)
Applications (1)
Records & Logs
5 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
- 18
- Max Depth
- 4,525 ft
- Drill Type
- Vertical
- County
- REFUGIO
- District
- 2
- Operator
- T-C OIL COMPANY LLC
- Completed
- 2015-02-12
Operator
- Name
- T-C OIL CO, LLC
- Location
- REFUGIO
- P-5 Status
- Active (filed 2025-12-03)
- Cum Oil (all leases)
- 13,683,333 bbl
- Cum Gas (all leases)
- 22,912,895 mcf
- Activities
- CSGD/P, G/PUR, OPRS/G, OPRS/O
- Total Permits
- 282