42-297-36244

SHUT IN Horizontal

HERREJON 01

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

Permits

1

Max Depth

22,000 ft

First Permit

2022-05-19

Latest Activity

2022-05-19

Lifespan

< 1 yr

Regulatory Status

Schedule

ON SCHEDULE

Completion

2022-08-18

Shut-In

Plugged

P-5 Org Status: Active

!

EWA / Permit operator mismatch

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

Resolved via: schedulingMARATHON OIL EF LLC

Production Summary

Cum Oil

bbl

Cum Gas

mcf

First Production

2022-08

Last Production

2026-07

Operator History

originally filed by ENSIGN OPERATING LLC — asset transferred

Lease Production

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

Formation Tops (10) Elevation 204 ft (GL)

CSV
FormationTop Depth (MD)Subsea (+above / −below SL)
QUEEN CITY 4,403 ft-4,199 ft
WILCOX 5,381 ft-5,177 ft
MIDWAY 8,245 ft-8,041 ft
ESCONDIDO 9,130 ft-8,926 ft
NAVARRO 9,146 ft-8,942 ft
OLMOS 10,941 ft-10,737 ft
COOK MOUNTAIN
FRIO - DISPOSAL (Frio)
HOCKLEY - DISPOSAL
JACKSON-YEGUA - DISPOSAL (Jackson)

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
42-297-36243 HERREJON 01 · ENSIGN OPERATING LLC
0.0 mi
Queen City 5,386'Wilcox 5,386'Austin Chalk 12,891'Eagle Ford 12,894'Cook Mountain Edwards HOCKLEY - DISPOSAL Sligo Jackson Frio
42-297-36242 HERREJON 01 · ENSIGN OPERATING LLC
0.0 mi
Queen City 4,395'Reklaw 4,817'Wilcox 5,349'Midway 8,224'Navarro 9,122'Olmos 10,954'HOCKLEY - DISPOSAL Jackson Frio Cook Mountain
42-297-36241 HERREJON 01 · ENSIGN OPERATING LLC
0.0 mi
Queen City 4,402'Reklaw 5,390'Wilcox 5,390'Frio HOCKLEY - DISPOSAL Cook Mountain Austin Chalk Edwards Eagle Ford Jackson
42-297-36378 THREE SISTERS 01-LOP 02 SA1 · MARATHON OIL EF LLC
2.6 mi
Cook Mountain 1,598'Queen City 3,738'Reklaw 4,385'Carrizo 5,036'Wilcox 5,131'Anacacho 12,545'Austin Chalk 12,709'Eagle Ford 12,740'Jackson HOCKLEY - DISPOSAL Frio
42-297-36379 THREE SISTERS 01-LOP 01 SA2 · MARATHON OIL EF LLC
2.6 mi
Cook Mountain 1,598'Queen City 3,738'Reklaw 4,385'Carrizo 5,036'Wilcox 5,131'Anacacho 12,520'Austin Chalk 12,683'Eagle Ford 12,718'Jackson Frio HOCKLEY - DISPOSAL
42-297-36380 THREE SISTERS 01-LOP 01 SA3 · MARATHON OIL EF LLC
2.6 mi
Cook Mountain 1,598'Queen City 3,738'Reklaw 4,385'Carrizo 5,036'Wilcox 5,131'Anacacho 12,494'Austin Chalk 12,667'Eagle Ford 12,704'Frio Jackson HOCKLEY - DISPOSAL
42-297-36381 LIVE OAK PARTNERS 01 · MARATHON OIL EF LLC
2.6 mi
Cook Mountain 1,598'Queen City 3,738'Wilcox 5,131'Austin Chalk 12,666'Eagle Ford 12,701'Sligo Jackson Frio Edwards HOCKLEY - DISPOSAL
42-297-36407 DOBIE RANCH · BURLINGTON RESOURCES O & G CO LP
2.8 mi
Jackson 1,585'Cook Mountain 2,559'Queen City 3,837'Wilcox 5,330'Austin Chalk 12,665'Eagle Ford 12,744'Frio Sligo Edwards HOCKLEY - DISPOSAL

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).

Casing (1)

SizeSet DepthCement
9.625"6,449 ft2,128 sx

Permit History (1)

Applications (1)

#880124 A ENSIGN OPERATING LLC
received 2022-05-12

Records & Logs

1 completion filing on record.

W-2/G-1 2023-08-08

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 28.543547
Lon -98.186024

Well Details

Well Number
08H
Max Depth
22,000 ft
Drill Type
Horizontal
County
LIVE OAK
District
2
Completed
2022-08-18

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