42-013-36199

Unperfed Completion Horizontal

MIDDLE MCCOWEN

ATASCOSA County · District 1 · MARATHON OIL EF LLC · EAGLEVILLE (EAGLE FORD-1)

Permits

1

Max Depth

22,000 ft

First Permit

2024-08-22

Latest Activity

2024-08-22

Lifespan

< 1 yr

Regulatory Status

Schedule

OFF SCHEDULE

Completion

2024-12-14

Shut-In

Plugged

2025-07-05

Production Summary

Cum Oil

bbl

Cum Gas

mcf

First Production

2011-08

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 255 ft (GR)

CSV
FormationTop Depth (MD)Subsea (+above / −below SL)
ANACACHO - H2S (Anacacho)
AUSTIN CHALK - H2S, DISPOSAL (Austin Chalk)
BARTOSH
CARRIZO
ESCONDIDO - H2S, DISPOSAL (Escondido)
NAVARRO - H2S (Navarro)
OLMOS - DISPOSAL (Olmos)
QUEEN CITY
REKLAW
WILCOX - DISPOSAL (Wilcox)

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
42-013-36198 MIDDLE MCCOWEN · MARATHON OIL EF LLC
0.0 mi
Queen City 2,120'Reklaw 2,756'Carrizo 3,391'Wilcox 3,525'Anacacho 9,830'Austin Chalk 10,069'Escondido Bartosh Olmos Navarro
42-013-36215 MIDDLE MCCOWEN · MARATHON OIL EF LLC
0.0 mi
Queen City 2,091'Reklaw 2,749'Carrizo 3,401'Wilcox 3,544'Anacacho 9,820'Austin Chalk 10,059'Olmos Escondido Bartosh Navarro
42-013-36197 MIDDLE MCCOWEN · MARATHON OIL EF LLC
0.0 mi
Queen City 2,120'Reklaw 2,756'Carrizo 3,391'Wilcox 3,525'Anacacho 9,814'Austin Chalk 10,071'Navarro Escondido Olmos Bartosh
42-013-35965 MIDDLE MCCOWEN · MARATHON OIL EF LLC
0.0 mi
Queen City 2,032'Reklaw 2,668'Carrizo 3,437'Wilcox 3,522'Anacacho 9,734'Austin Chalk 10,080'Olmos Escondido Bartosh Navarro
42-013-35966 MIDDLE MCCOWEN · MARATHON OIL EF LLC
0.0 mi
Queen City 2,379'Reklaw 2,818'Carrizo 3,585'Wilcox 3,683'Anacacho 9,872'Austin Chalk 10,082'Navarro Bartosh Escondido Olmos
42-013-35967 MIDDLE MCCOWEN · MARATHON OIL EF LLC
0.0 mi
Carrizo 3,585'Wilcox 3,683'Anacacho 9,890'Austin Chalk 10,120'Reklaw Bartosh Escondido Olmos Queen City Navarro
42-013-35782 MIDDLE MCCOWEN · MARATHON OIL EF LLC
0.0 mi
Queen City 490'Reklaw 2,838'Carrizo 3,604'Wilcox 4,938'Anacacho 9,901'Austin Chalk 10,079'Navarro Escondido Olmos Bartosh
42-013-35781 MIDDLE MCCOWEN · MARATHON OIL EF LLC
0.0 mi
Queen City 490'Reklaw 2,838'Carrizo 3,604'Wilcox 4,938'Anacacho 9,866'Austin Chalk 10,089'Olmos Escondido Bartosh Navarro

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 (2)

SizeSet DepthCement
9.625"4,985 ft1,575 sx
5.5"6,895 ft1,422 sx

Permit History (1)

Applications (1)

#902173 A MARATHON OIL EF LLC
received 2024-08-20

Records & Logs

1 completion filing on record · 1 with log images at RRC.

W-2/G-1 2025-06-20 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 28.692158
Lon -98.365211

Well Details

Well Number
133H
Max Depth
22,000 ft
Drill Type
Horizontal
County
ATASCOSA
District
1
Completed
2024-12-14

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