42-297-35156
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
2012-05-21
Latest Activity
2012-05-21
Lifespan
< 1 yr
Regulatory Status
Schedule
ON SCHEDULE
Completion
2019-08-12
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
2012-10
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 (6) Elevation 199 ft (GL)
CSV| Formation | Top Depth (MD) | Subsea (+above / −below SL) |
|---|---|---|
| MIDWAY | 7,916 ft | -7,717 ft |
| AUSTIN CHALK | 11,897 ft | -11,698 ft |
| AUSTIN CHALK, UPPER (Austin Chalk) | 11,897 ft | -11,698 ft |
| EAGLE FORD | 12,136 ft | -11,937 ft |
| TOP EAGLEFORD (Eagle Ford) | 12,136 ft | -11,937 ft |
| TOP EGFD | 12,136 ft | -11,937 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 |
|---|---|
| 12,250–18,941 ft | Perforated |
Casing (3)
| Size | Set Depth | Cement |
|---|---|---|
| 13.375" | 674 ft | 760 sx |
| 9.625" | 8,350 ft | 1,620 sx |
| 5.5" | 19,066 ft | 2,096 sx |
Permit History (1)
Applications (1)
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.
No GPS coordinates yet
Well Details
- Well Number
- 11H
- Max Depth
- 21,000 ft
- Drill Type
- Horizontal
- County
- LIVE OAK
- District
- 2
- Operator
- MARATHON OIL EF LLC
- Completed
- 2019-08-12
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