42-409-31681
Final CompletionWELDER, E. H. -C-
SAN PATRICIO County · District 4 · MARATHON OIL COMPANY
Permits
6
Max Depth
7,250 ft
First Permit
1982-10-01
Latest Activity
1995-05-01
Lifespan
13 yrs
Regulatory Status
Schedule
OFF SCHEDULE
Completion
—
Shut-In
—
Plugged
—
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
10,000 bbl/d
Max Pressure
1,000 psi
Injection Interval
3,950–4,850 ft
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 (9) Elevation 57 ft (DF)
CSV| Formation | Top Depth (MD) | Subsea (+above / −below SL) |
|---|---|---|
| MIOCENE & YOUNGER (Miocene (undifferentiated)) | 1 ft | +56 ft |
| ANAHUAC | 4,400 ft | -4,343 ft |
| ANAHUAC | 4,450 ft | -4,393 ft |
| MIOCENE (Miocene (undifferentiated)) | 4,450 ft | -4,393 ft |
| GRETA | 4,600 ft | -4,543 ft |
| ANAHUAC | 5,100 ft | -5,043 ft |
| FRIO | 5,100 ft | -5,043 ft |
| FRIO | 5,150 ft | -5,093 ft |
| HEEP | 5,600 ft | -5,543 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 (6)
| Interval | Type |
|---|---|
| 4,000–4,090 ft | Perforated |
| 4,760–4,830 ft | Perforated |
| 5,634–5,640 ft | Perforated |
| 5,635–5,640 ft | Perforated |
| 6,050–6,054 ft | Perforated |
| 7,091–7,098 ft | Perforated |
Casing (5)
| Size | Set Depth | Cement |
|---|---|---|
| 16" | 80 ft | — |
| 8.625" | 1,314 ft | 730 sx |
| 8.625" | 1,315 ft | 130 sx |
| 2.875" | 5,528 ft | — |
| 5.5" | 7,182 ft | 645 sx |
Permit History (6)
WELDER, E. H. -C- · 7,215 ft
1995-05-01
Spud 1995-03-27
WELDER, E. H. -C- · 7,215 ft
1990-07-30
WELDER, E. H. -C- · 7,215 ft
1990-07-30
WELDER, E. H. -C- · 7,215 ft
1988-12-30
WELDER, E. H. "C" · 7,250 ft
1986-10-16
WELDER, E. H. 'C' · 7,200 ft
1982-10-01
Applications (6)
Records & Logs
8 completion filings on record · 3 with log images at RRC.
+2 more filings
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
- 164
- Max Depth
- 7,250 ft
- Drill Type
- Vertical
- County
- SAN PATRICIO
- District
- 4
- Operator
- MARATHON OIL COMPANY
Operator
- Name
- MARATHON OIL CO
- Location
- HOUSTON
- P-5 Status
- Active (filed 2025-08-14)
- Cum Oil (all leases)
- 183,150,113 bbl
- Cum Gas (all leases)
- 1,013,063,895 mcf
- Activities
- CSGD/P, G/PUR
- Total Permits
- 3,707