42-297-36231

TEMP ABANDONED Horizontal

THREE SISTERS 01 - WK01 A

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

Permits

1

Max Depth

25,000 ft

First Permit

2022-04-14

Latest Activity

2022-04-14

Lifespan

< 1 yr

Regulatory Status

Schedule

ON SCHEDULE

Completion

2022-08-19

Shut-In

Plugged

P-5 Org Status: Active

!

EWA / Permit operator mismatch

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

Resolved via: productionMARATHON OIL EF LLC

Production Summary

Cum Oil

bbl

Cum Gas

mcf

First Production

2022-08

Last Production

2026-07

Lease Production

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

Formation Tops (10) Elevation 171 ft (GL)

CSV
FormationTop Depth (MD)Subsea (+above / −below SL)
QUEEN CITY 3,743 ft-3,572 ft
WILCOX 4,961 ft-4,790 ft
AUSTIN CHALK 12,421 ft-12,250 ft
EAGLE FORD - H2S (Eagle Ford)12,473 ft-12,302 ft
COOK MOUNTAIN
EDWARDS - H2S (Edwards)
FRIO - DISPOSAL (Frio)
HOCKLEY - DISPOSAL
JACKSON-YEGUA - DISPOSAL (Jackson)
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.

Cross-section
42-297-36232 THREE SISTERS 01 - WK01 B · ENSIGN OPERATING LLC
0.0 mi
Queen City 3,647'Wilcox 5,089'Austin Chalk 12,426'Eagle Ford 12,519'Frio Cook Mountain Edwards HOCKLEY - DISPOSAL Sligo Jackson
42-297-36233 THREE SISTERS 01 - WK01 C · ENSIGN OPERATING LLC
0.0 mi
Queen City 3,647'Wilcox 5,125'Austin Chalk 12,460'Eagle Ford 12,522'Cook Mountain Edwards HOCKLEY - DISPOSAL Sligo Jackson Frio
42-297-36078 THREE SISTERS 01 · ENSIGN OPERATING LLC
0.4 mi
Wilcox 4,871'Austin Chalk 12,351'Eagle Ford 12,382'Sligo HOCKLEY - DISPOSAL Jackson Frio Queen City Cook Mountain Edwards
42-297-36080 THREE SISTERS 01 · ENSIGN OPERATING LLC
0.4 mi
Wilcox 4,871'Austin Chalk 12,364'Eagle Ford 12,396'Frio Queen City HOCKLEY - DISPOSAL Edwards Cook Mountain Jackson Sligo
42-297-36081 THREE SISTERS 01 · ENSIGN OPERATING LLC
0.4 mi
Wilcox 4,871'Austin Chalk 12,367'Eagle Ford 12,400'Jackson Frio Queen City Edwards HOCKLEY - DISPOSAL Sligo Cook Mountain
42-297-36082 THREE SISTERS 01 · ENSIGN OPERATING LLC
0.4 mi
Wilcox 4,871'Austin Chalk 12,369'Eagle Ford 12,403'Jackson Frio Queen City Sligo Edwards Cook Mountain HOCKLEY - DISPOSAL
42-297-36403 THREE SISTERS 01 · MARATHON OIL EF LLC
0.8 mi
Cook Mountain 1,278'Queen City 2,202'Reklaw 2,847'Wilcox 3,718'Anacacho 11,998'Austin Chalk 12,202'Eagle Ford 12,249'Edwards Frio HOCKLEY - DISPOSAL Jackson Sligo
42-297-36404 THREE SISTERS 01 · MARATHON OIL EF LLC
0.8 mi
Cook Mountain 1,278'Queen City 2,202'Reklaw 2,847'Wilcox 3,718'Anacacho 11,998'Austin Chalk 12,202'Eagle Ford 12,249'HOCKLEY - DISPOSAL Jackson Edwards Sligo Frio

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)

IntervalType
12,918–20,481 ftPerforated

Casing (3)

SizeSet DepthCement
5.5"5,430 ft4,746 sx
9.625"6,479 ft2,362 sx
5.5"20,548 ft4,746 sx

Permit History (1)

Applications (1)

#878710 A ENSIGN OPERATING LLC
received 2022-04-01

Records & Logs

2 completion filings on record · 2 with log images at RRC.

W-2/G-1 2023-12-04 log on file
W-2/G-1 2022-11-07 log on file

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.

Lat 28.563805
Lon -98.236097

Well Details

Well Number
01H
Max Depth
25,000 ft
Drill Type
Horizontal
County
LIVE OAK
District
2
Completed
2022-08-19

Operator

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