42-297-36078

PRODUCING Horizontal

THREE SISTERS 01

LIVE OAK County · District 2 · MARATHON OIL EF LLC · SUGARKANE (EAGLE FORD)

RRC Lookup

Permits

Max Depth

25,000 ft

First Permit

2020-04-15

Latest Activity

2020-04-15

Lifespan

< 1 yr

Regulatory Status

Schedule

ON SCHEDULE

Completion

2022-01-26

Shut-In

—

Plugged

—

P-5 Org Status: Active

EWA / Permit operator mismatch

Scheduling: MARATHON OIL EF LLC ≠ Permit: ENSIGN OPERATING LLC

Resolved via: production → MARATHON OIL EF LLC

Production Summary

Cum Oil

— bbl

Cum Gas

— mcf

First Production

2017-09

Last Production

2026-03

Operator History

Chain of Custody

PIONEER NATURAL RES. USA, INC. 2017-2019→ ENSIGN OPERATING LLC 2019-2023→ MARATHON OIL EF LLC 2022-2025

Lease Production

Production is reported at the lease level. View production data, decline curves, and history on the lease page.

Permit History (1)

#863260 Drill Final Completion

THREE SISTERS 01 · 25,000 ft

2020-04-15

Spud 2021-09-29

Permit Applications (1)

#863260 A ENSIGN OPERATING LLC

received 2020-04-07

Google Maps → Explorer Map →

Lat 28.559652

Lon -98.240189

Well Details

Well Number: 51H
Max Depth: 25,000 ft
Drill Type: Horizontal
County: LIVE OAK
District: 2
Operator: MARATHON OIL EF LLC
Completed: 2022-01-26

Operator

Name: MARATHON OIL EF LLC
Location: HOUSTON
P-5 Status: Y (filed 2025-08-04)
Cum Oil (all leases): 402,810,154 bbl
Cum Gas (all leases): 1,004,946,409 mcf
Activities: CSGD/G, CSGD/P, G/PUR, GTHS/C, GTHS/G, GTHS/O, OPRS/G, OPRS/O
Total Permits: 3,131

External Links

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