42-013-36131
PRODUCING HorizontalETHRIDGE UNIT A
ATASCOSA County · District 2 · MARATHON OIL EF LLC · EAGLEVILLE (EAGLE FORD-2)
Permits
3
Max Depth
22,000 ft
First Permit
2024-01-24
Latest Activity
2024-01-24
Lifespan
< 1 yr
Regulatory Status
Schedule
ON SCHEDULE
Completion
2024-05-21
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
2011-03
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 (11) Elevation 359 ft (GL)
CSV| Formation | Top Depth (MD) | Subsea (+above / −below SL) |
|---|---|---|
| COOK MOUNTAIN | 1,939 ft | -1,580 ft |
| QUEEN CITY | 2,794 ft | -2,435 ft |
| REKLAW | 3,324 ft | -2,965 ft |
| CARRIZO | 4,152 ft | -3,793 ft |
| WILCOX - DISPOSAL (Wilcox) | 4,224 ft | -3,865 ft |
| ANACACHO - H2S (Anacacho) | 10,734 ft | -10,375 ft |
| AUSTIN CHALK - H2S, DISPOSAL (Austin Chalk) | 11,101 ft | -10,742 ft |
| BARTOSH | — | — |
| ESCONDIDO - H2S, DISPOSAL (Escondido) | — | — |
| NAVARRO - H2S (Navarro) | — | — |
| OLMOS - DISPOSAL (Olmos) | — | — |
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 ↗
Offset Well Tops (nearest 8 wells with tops)
What nearby completed wells reported.
Nearest wells within 10 mi (surface locations). Click wells to select them, then open the cross-section to compare tops side by side (max 6 wells per section, including this one).
Perforations (1)
| Interval | Type |
|---|---|
| 11,458–17,778 ft | Perforated |
Casing (3)
| Size | Set Depth | Cement |
|---|---|---|
| 10" | 5,181 ft | 1,286 sx |
| 9.625" | 5,181 ft | 1,286 sx |
| 5.5" | 17,779 ft | 3,134 sx |
Permit History (3)
Applications (3)
Records & Logs
3 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.
Well Details
- Well Number
- 4H
- Max Depth
- 22,000 ft
- Drill Type
- Horizontal
- County
- ATASCOSA
- District
- 2
- Operator
- MARATHON OIL EF LLC
- Completed
- 2024-05-21
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
- 3,173