42-391-00515
Final CompletionTOM OCONNOR 4400 SAND GAS UNIT
REFUGIO County · District 2 · QUINTANA PET. CORP. · TOM OCONNOR (4400)
Permits
2
Max Depth
5,925 ft
First Permit
1998-05-01
Latest Activity
2008-01-31
Lifespan
10 yrs
Regulatory Status
Schedule
OFF SCHEDULE
Completion
1976-11-03
Shut-In
—
Plugged
—
EWA / Production operator mismatch
Scheduling: QUINTANA PET. CORP. ≠ Production: HILCORP ENERGY COMPANY (reported 2025-07)
EWA / Permit operator mismatch
Scheduling: QUINTANA PET. CORP. ≠ Permit: HILCORP ENERGY COMPANY
Resolved via: scheduling → QUINTANA PET. CORP.
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 (8) Elevation 57 ft
CSV| Formation | Top Depth (MD) | Subsea (+above / −below SL) |
|---|---|---|
| LARGARTO (Lagarto) | 2,750 ft | -2,693 ft |
| OAKVILLE | 3,300 ft | -3,243 ft |
| CATAHOULA (MIOCENE) (Catahoula) | 4,100 ft | -4,043 ft |
| ANAHUAC (MIOCENE) (Anahuac) | 4,365 ft | -4,308 ft |
| FRIO-GRETA (OLIG) (Frio) | 4,785 ft | -4,728 ft |
| MIDDLE FRIO (SINTON) (Frio) | 5,400 ft | -5,343 ft |
| LOWER FRIO (OLIGOCENE) (Frio) | 5,925 ft | -5,868 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 (3)
| Interval | Type |
|---|---|
| 4,122–4,130 ft | Perforated |
| 4,146–4,161 ft | Perforated |
| 4,358–4,365 ft | Perforated |
Casing (2)
| Size | Set Depth | Cement |
|---|---|---|
| 9.625" | 1,008 ft | 350 sx |
| 5" | 5,923 ft | 500 sx |
Permit History (2)
Applications (2)
Records & Logs
5 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
- W909A
- Max Depth
- 5,925 ft
- Drill Type
- Vertical
- County
- REFUGIO
- District
- 2
- Operator
- QUINTANA PET. CORP.
- Completed
- 1976-11-03
Operator
- Name
- QUINTANA PET. CORP
- Location
- REFUGIO
- P-5 Status
- Inactive (filed 2000-08-16)
- Cum Oil (all leases)
- 27,323,168 bbl
- Cum Gas (all leases)
- 96,000,536 mcf
- Total Permits
- 1,589