42-057-00489
SHOFNER W. A. ESTATE
CALHOUN County · District 2 · INITIAL ENERGY SERVICES LLC · SHERIFF (F-4)
Permits
1
Max Depth
5,807 ft
First Permit
1977-06-08
Latest Activity
1977-06-08
Lifespan
< 1 yr
Regulatory Status
Schedule
OFF SCHEDULE
Completion
1977-07-01
Shut-In
—
Plugged
2002-10-11
EWA / Permit operator mismatch
Scheduling: INITIAL ENERGY SERVICES LLC ≠ Permit: QUINTANA PET. CORP.
Resolved via: scheduling → INITIAL ENERGY SERVICES LLC
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
3,500 bbl/d
Max Pressure
950 psi
Injection Interval
1,910–1,940 ft
Injected (12mo)
—
Operator History
originally filed by QUINTANA PET. CORP. — asset transferred
Lease Production
Production is reported at the lease level. View production data, decline curves, and history on the lease page.
Formation Tops (6) Elevation 26 ft
CSV| Formation | Top Depth (MD) | Subsea (+above / −below SL) |
|---|---|---|
| OAKVILLE | 1 ft | +25 ft |
| CATAHOULA MIOCENE (Catahoula) | 3,300 ft | -3,274 ft |
| ANAHUAC MIOCENE (Anahuac) | 4,100 ft | -4,074 ft |
| FRIO-GRETA OLIGOCENE (Frio) | 4,365 ft | -4,339 ft |
| MIDDLE FRIO SINTON (Frio) | 4,785 ft | -4,759 ft |
| LOWER FRIO OLIGOCENE (Frio) | 5,400 ft | -5,374 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 (2)
| Interval | Type |
|---|---|
| 1,920–1,950 ft | Perforated |
| ?–5,710 ft | Perforated |
Casing (2)
| Size | Set Depth | Cement |
|---|---|---|
| 9.625" | 956 ft | 500 sx |
| 5.5" | 5,803 ft | 300 sx |
Permit History (1)
Applications (1)
Records & Logs
3 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
- 12
- Max Depth
- 5,807 ft
- Drill Type
- Vertical
- County
- CALHOUN
- District
- 2
- Operator
- INITIAL ENERGY SERVICES LLC
- Completed
- 1977-07-01
Operator
- Location
- SAN ANTONIO
- P-5 Status
- Active (filed 2025-09-05)
- Cum Oil (all leases)
- 1,509 bbl
- Cum Gas (all leases)
- 255,431 mcf
- Activities
- OPRS/G, OPRS/O
- Total Permits
- 1