42-409-32044
Final CompletionWELDER E.H. C
SAN PATRICIO County · District 4 · MARATHON OIL COMPANY · PLYMOUTH (6500)
Permits
4
Max Depth
7,210 ft
First Permit
1985-05-03
Latest Activity
1998-07-01
Lifespan
13 yrs
Regulatory Status
Schedule
OFF SCHEDULE
Completion
1993-06-27
Shut-In
—
Plugged
—
EWA / Production operator mismatch
Scheduling: MARATHON OIL COMPANY ≠ Production: MCGOWAN WORKING PARTNERS, INC. (reported 2026-04)
Resolved via: production → MCGOWAN WORKING PARTNERS, INC.
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
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 (3) Elevation 42 ft (GL)
CSV| Formation | Top Depth (MD) | Subsea (+above / −below SL) |
|---|---|---|
| MIOCENE (Miocene (undifferentiated)) | 1 ft | +41 ft |
| ANAHUAC | 4,450 ft | -4,408 ft |
| FRIO | 5,100 ft | -5,058 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 |
|---|---|
| 3,580–3,590 ft | Perforated |
| 5,612–5,616 ft | Perforated |
| 6,033–6,040 ft | Perforated |
| 6,449–6,451 ft | Perforated |
| 6,461–6,464 ft | Perforated |
| 6,552–6,557 ft | Perforated |
Casing (2)
| Size | Set Depth | Cement |
|---|---|---|
| 9.625" | 1,316 ft | 471 sx |
| 5.5" | 7,209 ft | 1,491 sx |
Permit History (4)
WELDER, E. H. -C- · 7,210 ft
1998-07-01
Spud 1998-06-02
WELDER, E.H. "C" · 7,210 ft
1995-04-13
Spud 1995-03-09
WELDER, E.H. "C" · 7,209 ft
1993-07-02
Spud 1993-06-22
WELDER, E. H. "C" · 7,200 ft
1985-05-03
Spud 1985-07-17
Applications (4)
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
- 166
- Max Depth
- 7,210 ft
- Drill Type
- Vertical
- County
- SAN PATRICIO
- District
- 4
- Operator
- MARATHON OIL COMPANY
- Completed
- 1993-06-27
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