42-311-35443
PRODUCING HorizontalMIDDLE MCCOWEN
MCMULLEN County · District 1 · MARATHON OIL EF LLC · EAGLEVILLE (EAGLE FORD-1)
Permits
1
Max Depth
19,500 ft
First Permit
2013-05-14
Latest Activity
2013-05-14
Lifespan
< 1 yr
Regulatory Status
Schedule
ON SCHEDULE
Completion
2016-10-14
Shut-In
—
Plugged
—
P-5 Org Status: Active
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
2011-08
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 (9) Elevation 305 ft (GR)
CSV| Formation | Top Depth (MD) | Subsea (+above / −below SL) |
|---|---|---|
| WILCOX | 5,185 ft | -4,880 ft |
| OLMOS | 8,916 ft | -8,611 ft |
| ANACACHO | 10,480 ft | -10,175 ft |
| AUSTIN CHALK | 10,742 ft | -10,437 ft |
| AUSTIN CHALK (UPPER) (Austin Chalk) | 10,742 ft | -10,437 ft |
| AUSTIN CHALK (LOWER) (Austin Chalk) | 10,804 ft | -10,499 ft |
| EAGLE FORD | 10,851 ft | -10,546 ft |
| UPPER EAGLE FORD (Eagle Ford) | 10,851 ft | -10,546 ft |
| LOWER EAGLE FORD (Eagle Ford) | 10,861 ft | -10,556 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 (1)
| Interval | Type |
|---|---|
| 11,250–18,196 ft | Perforated |
Casing (2)
| Size | Set Depth | Cement |
|---|---|---|
| 9.625" | 5,268 ft | 1,305 sx |
| 5.5" | 18,330 ft | 2,000 sx |
Permit History (1)
Applications (1)
Records & Logs
3 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
- 57H
- Max Depth
- 19,500 ft
- Drill Type
- Horizontal
- County
- MCMULLEN
- District
- 1
- Operator
- MARATHON OIL EF LLC
- Completed
- 2016-10-14
Operator
- Name
- MARATHON OIL EF LLC
- Location
- HOUSTON
- P-5 Status
- Active (filed 2025-09-26)
- Cum Oil (all leases)
- 409,189,156 bbl
- Cum Gas (all leases)
- 1,029,735,602 mcf
- Activities
- CSGD/G, CSGD/P, G/PUR, GTHS/C, GTHS/G, GTHS/O, OPRS/G, OPRS/O
- Total Permits
- 3,175