42-311-36613
PRODUCING HorizontalMIDDLE MCCOWEN
MCMULLEN County · District 1 · MARATHON OIL EF LLC · EAGLEVILLE (EAGLE FORD-1)
Permits
1
Max Depth
21,000 ft
First Permit
2016-04-20
Latest Activity
2016-04-20
Lifespan
< 1 yr
Regulatory Status
Schedule
ON SCHEDULE
Completion
2020-01-30
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 (11) Elevation 357 ft (GR)
CSV| Formation | Top Depth (MD) | Subsea (+above / −below SL) |
|---|---|---|
| YEGUA - DISPOSAL (Yegua) | 2,681 ft | -2,324 ft |
| WILCOX - DISPOSAL (Wilcox) | 6,879 ft | -6,522 ft |
| NAVARRO | 7,871 ft | -7,514 ft |
| OLMOS | 8,671 ft | -8,314 ft |
| OLMOS | 8,761 ft | -8,404 ft |
| ANACACHO | 10,257 ft | -9,900 ft |
| AUSTIN CHALK | 10,501 ft | -10,144 ft |
| EAGLE FORD - H2S (Eagle Ford) | 10,635 ft | -10,278 ft |
| CATAHOULA - DISPOSAL (Catahoula) | — | — |
| ESCONDIDO | — | — |
| FRIO - DISPOSAL (Frio) | — | — |
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 |
|---|---|
| 10,822–19,772 ft | Perforated |
Casing (2)
| Size | Set Depth | Cement |
|---|---|---|
| 9.625" | 5,052 ft | 1,540 sx |
| 5.5" | 19,871 ft | 3,130 sx |
Permit History (1)
Applications (1)
Records & Logs
2 completion filings on record · 1 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
- 91H
- Max Depth
- 21,000 ft
- Drill Type
- Horizontal
- County
- MCMULLEN
- District
- 1
- Operator
- MARATHON OIL EF LLC
- Completed
- 2020-01-30
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