42-297-35934
PRODUCING HorizontalTHREE SISTERS 01
LIVE OAK County · District 2 · MARATHON OIL EF LLC · SUGARKANE (EAGLE FORD)
Permits
2
Max Depth
26,000 ft
First Permit
2018-07-24
Latest Activity
2018-07-24
Lifespan
< 1 yr
Regulatory Status
Schedule
ON SCHEDULE
Completion
2019-08-16
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: production → 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
2019-02
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 (10) Elevation 245 ft (GL)
CSV| Formation | Top Depth (MD) | Subsea (+above / −below SL) |
|---|---|---|
| HOCKLEY - DISPOSAL | 559 ft | -314 ft |
| JACKSON-YEGUA - DISPOSAL (Jackson) | 1,260 ft | -1,015 ft |
| COOK MOUNTAIN | 2,619 ft | -2,374 ft |
| QUEEN CITY | 3,559 ft | -3,314 ft |
| WILCOX | 5,108 ft | -4,863 ft |
| AUSTIN CHALK | 12,428 ft | -12,183 ft |
| EAGLE FORD - H2S (Eagle Ford) | 12,550 ft | -12,305 ft |
| EDWARDS - H2S (Edwards) | — | — |
| 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 ↗
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 |
|---|---|
| 12,961–19,700 ft | Perforated |
Casing (2)
| Size | Set Depth | Cement |
|---|---|---|
| 9.625" | 6,475 ft | 2,483 sx |
| 5.5" | 19,874 ft | 4,918 sx |
Permit History (2)
Applications (2)
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
- 43H
- Max Depth
- 26,000 ft
- Drill Type
- Horizontal
- County
- LIVE OAK
- District
- 2
- Operator
- MARATHON OIL EF LLC
- Completed
- 2019-08-16
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