42-297-35480
PRODUCING HorizontalTHREE SISTERS 01
LIVE OAK County · District 2 · MARATHON OIL EF LLC · SUGARKANE (EAGLE FORD)
Permits
1
Max Depth
21,000 ft
First Permit
2013-11-26
Latest Activity
2013-11-26
Lifespan
< 1 yr
Regulatory Status
Schedule
ON SCHEDULE
Completion
2014-08-23
Shut-In
—
Plugged
—
P-5 Org Status: Active
EWA / Permit operator mismatch
Scheduling: MARATHON OIL EF LLC ≠ Permit: PIONEER NATURAL RES. USA, INC.
Resolved via: scheduling → MARATHON OIL EF LLC
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
2014-08
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 (14) Elevation 168 ft (GL)
CSV| Formation | Top Depth (MD) | Subsea (+above / −below SL) |
|---|---|---|
| HOCKLEY | 820 ft | -652 ft |
| HOCKLEY - DISPOSAL | 820 ft | -652 ft |
| JACKSON/YEGAU (Jackson) | 1,520 ft | -1,352 ft |
| JACKSON-YEGUA - DISPOSAL (Jackson) | 1,520 ft | -1,352 ft |
| COOK MOUNTAIN | 2,600 ft | -2,432 ft |
| QUEEN CITY | 3,860 ft | -3,692 ft |
| WILCOX | 5,148 ft | -4,980 ft |
| AUSTIN CHALK | 12,695 ft | -12,527 ft |
| EAGLE FORD | 12,710 ft | -12,542 ft |
| EAGLE FORD - H2S (Eagle Ford) | 12,710 ft | -12,542 ft |
| EDWARDS - H2S (Edwards) | — | — |
| FRIO | — | — |
| FRIO - DISPOSAL (Frio) | — | — |
| SLIGO - H2S (Sligo) | — | — |
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 |
|---|---|
| 13,105–20,361 ft | Perforated |
Casing (2)
| Size | Set Depth | Cement |
|---|---|---|
| 9.625" | 6,295 ft | 1,510 sx |
| 5.5" | 20,505 ft | 4,175 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
- 23H
- Max Depth
- 21,000 ft
- Drill Type
- Horizontal
- County
- LIVE OAK
- District
- 2
- Operator
- MARATHON OIL EF LLC
- Completed
- 2014-08-23
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