42-013-36098

PRODUCING Horizontal

MIDDLE MCCOWEN

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

Permits

1

Max Depth

22,000 ft

First Permit

2023-09-27

Latest Activity

2023-09-27

Lifespan

< 1 yr

Regulatory Status

Schedule

ON SCHEDULE

Completion

2024-05-13

Shut-In

Plugged

P-5 Org Status: Active

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 250 ft (GL)

CSV
FormationTop Depth (MD)Subsea (+above / −below SL)
QUEEN CITY 2,202 ft-1,952 ft
REKLAW 2,847 ft-2,597 ft
CARRIZO 3,616 ft-3,366 ft
WILCOX - DISPOSAL (Wilcox)3,718 ft-3,468 ft
ANACACHO - H2S (Anacacho)10,083 ft-9,833 ft
AUSTIN CHALK - H2S, DISPOSAL (Austin Chalk)10,309 ft-10,059 ft
BARTOSH
ESCONDIDO - H2S, DISPOSAL (Escondido)
NAVARRO - H2S (Navarro)
OLMOS - DISPOSAL (Olmos)

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
42-013-36097 MIDDLE MCCOWEN · MARATHON OIL EF LLC
0.0 mi
Queen City 2,202'Reklaw 2,847'Carrizo 3,616'Wilcox 3,718'Austin Chalk 10,313'Bartosh Anacacho Olmos Escondido Navarro
42-013-36096 MIDDLE MCCOWEN · MARATHON OIL EF LLC
0.0 mi
Cook Mountain 1,278'Queen City 2,202'Reklaw 2,847'Carrizo 3,616'Wilcox 3,718'Anacacho 10,067'Austin Chalk 10,323'Bartosh Escondido Olmos Navarro
42-013-36095 MIDDLE MCCOWEN · MARATHON OIL EF LLC
0.0 mi
Queen City 1,278'Cook Mountain 1,278'Queen City 2,202'Reklaw 2,847'Carrizo 3,616'Wilcox 3,718'Wilcox 3,718'Anacacho 10,073'Anacacho 10,073'Austin Chalk 10,339'Austin Chalk 10,339'Eagle Ford 10,449' +4 more
42-013-35964 MIDDLE MCCOWEN · MARATHON OIL EF LLC
0.0 mi
Queen City 2,201'Reklaw 2,846'Carrizo 3,615'Wilcox 3,716'Anacacho 10,037'Austin Chalk 10,244'Olmos Escondido Bartosh Navarro
42-013-35963 MIDDLE MCCOWEN · MARATHON OIL EF LLC
0.0 mi
Queen City 2,201'Reklaw 2,846'Carrizo 3,615'Wilcox 3,716'Anacacho 10,057'Austin Chalk 10,274'Navarro Bartosh Olmos Escondido
42-013-35962 MIDDLE MCCOWEN · MARATHON OIL EF LLC
0.0 mi
Queen City 2,201'Reklaw 2,846'Carrizo 3,615'Wilcox 3,716'Anacacho 10,065'Austin Chalk 10,274'Olmos Bartosh Escondido Navarro
42-013-35961 MIDDLE MCCOWEN · MARATHON OIL EF LLC
0.1 mi
Queen City 2,201'Reklaw 2,846'Carrizo 3,615'Wilcox 3,716'Anacacho 10,054'Austin Chalk 10,262'Eagle Ford 10,459'Navarro Bartosh Buda Escondido Olmos
42-013-35960 MIDDLE MCCOWEN · MARATHON OIL EF LLC
0.1 mi
Queen City 2,201'Reklaw 2,846'Carrizo 3,615'Wilcox 3,716'Anacacho 10,044'Austin Chalk 10,253'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).

Perforations (1)

IntervalType
11,162–21,008 ftPerforated

Casing (2)

SizeSet DepthCement
9.625"5,154 ft1,261 sx
5.5"21,008 ft3,885 sx

Permit History (1)

Applications (1)

#894031 A MARATHON OIL EF LLC
received 2023-09-26

Records & Logs

2 completion filings on record · 1 with log images at RRC.

W-2/G-1 2024-08-05
W-2/G-1 2024-02-14 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 28.664083
Lon -98.372547

Well Details

Well Number
175H
Max Depth
22,000 ft
Drill Type
Horizontal
County
ATASCOSA
District
1
Completed
2024-05-13

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