42-409-33051
Final CompletionWELDER-GULLEY
SAN PATRICIO County · District 4 · MERTZ ENERGY LLC · ONEIL (6800)
Permits
2
Max Depth
7,500 ft
First Permit
2015-08-21
Latest Activity
2017-05-26
Lifespan
2 yrs
Regulatory Status
Schedule
OFF SCHEDULE
Completion
2015-09-28
Shut-In
—
Plugged
—
EWA / Production operator mismatch
Scheduling: MERTZ ENERGY LLC ≠ Production: POCO LLC (reported 2026-04)
Resolved via: production → POCO 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
2015-09
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 (4) Elevation 8 ft (GL)
CSV| Formation | Top Depth (MD) | Subsea (+above / −below SL) |
|---|---|---|
| CATAHOULA-ANAHUAC - INJECTION/DI (Catahoula) | 3,700 ft | -3,692 ft |
| CATAHOULA-FRIO - INJECTION/DISPO (Catahoula) | 5,000 ft | -4,992 ft |
| MIOCENE-LAGARTO-OAKVILLE - INJEC (Miocene (undifferentiated)) | — | — |
| VICKSBURG | — | — |
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 |
|---|---|
| 5,470–5,478 ft | Perforated |
| 6,472–6,482 ft | Perforated |
| 6,556–6,565 ft | Perforated |
| 6,602–6,614 ft | Perforated |
| 6,740–6,749 ft | Perforated |
| 7,060–7,066 ft | Perforated |
Casing (2)
| Size | Set Depth | Cement |
|---|---|---|
| 8.625" | 1,246 ft | 510 sx |
| 5.5" | 7,478 ft | 720 sx |
Permit History (2)
Applications (2)
Records & Logs
4 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
- 1
- Max Depth
- 7,500 ft
- Drill Type
- Vertical
- County
- SAN PATRICIO
- District
- 4
- Operator
- MERTZ ENERGY LLC
- Completed
- 2015-09-28
Operator
- Name
- MERTZ ENGY LLC
- Location
- HOUSTON
- P-5 Status
- Inactive (filed 2020-06-03)
- Cum Oil (all leases)
- 28,972 bbl
- Cum Gas (all leases)
- 250,958 mcf
- Total Permits
- 6