42-013-35533

PRODUCING Horizontal

MIDDLE MCCOWEN

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

Permits

2

Max Depth

19,500 ft

First Permit

2017-09-28

Latest Activity

2017-09-28

Lifespan

< 1 yr

Regulatory Status

Schedule

ON SCHEDULE

Completion

2018-07-19

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 (14) Elevation 241 ft (GR)

CSV
FormationTop Depth (MD)Subsea (+above / −below SL)
QUEEN CITY 2,172 ft-1,931 ft
REKLAW 2,612 ft-2,371 ft
BARTOSH 3,014 ft-2,773 ft
CARRIZO 3,378 ft-3,137 ft
WILCOX - DISPOSAL (Wilcox)4,712 ft-4,471 ft
NAVARRO - H2S (Navarro)7,754 ft-7,513 ft
OLMOS - DISPOSAL (Olmos)8,114 ft-7,873 ft
ANACACHO - H2S (Anacacho)9,367 ft-9,126 ft
ANACACHO - H2S (Anacacho)9,637 ft-9,396 ft
AUSTIN CHALK - H2S, DISPOSAL (Austin Chalk)9,842 ft-9,601 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
42-013-35532 MIDDLE MCCOWEN · MARATHON OIL EF LLC
0.0 mi
Queen City 2,172'Reklaw 2,612'Bartosh 3,014'Carrizo 3,378'Wilcox 4,712'Navarro 7,754'Olmos 8,114'Anacacho 9,651'Austin Chalk 9,851'Bartosh Escondido Olmos +1 more
42-013-35531 MIDDLE MCCOWEN · MARATHON OIL EF LLC
0.0 mi
Queen City 2,172'Queen City 2,472'Reklaw 2,612'Bartosh 3,014'Carrizo 3,378'Wilcox 4,712'Navarro 7,754'Olmos 8,114'Anacacho 9,654'Austin Chalk 9,854'Escondido
42-013-35530 MIDDLE MCCOWEN · MARATHON OIL EF LLC
0.0 mi
Queen City 2,172'Reklaw 2,612'Bartosh 3,014'Carrizo 3,378'Wilcox 4,439'Wilcox 4,712'Navarro 7,754'Olmos 8,114'Anacacho 9,652'Austin Chalk 9,853'Escondido
42-013-35827 MIDDLE MCCOWEN · MARATHON OIL EF LLC
0.0 mi
Queen City 2,180'Reklaw 2,619'Bartosh 3,021'Carrizo 3,297'Wilcox 3,477'Olmos 8,122'Anacacho 9,611'Austin Chalk 9,818'Escondido Navarro
42-013-35826 MIDDLE MCCOWEN · MARATHON OIL EF LLC
0.0 mi
Queen City 2,180'Reklaw 2,619'Bartosh 3,021'Carrizo 3,297'Wilcox 3,477'Olmos 8,122'Anacacho 9,626'Austin Chalk 9,837'Escondido Navarro
42-013-35825 MIDDLE MCCOWEN · MARATHON OIL EF LLC
0.0 mi
Queen City 2,180'Reklaw 2,619'Bartosh 3,021'Carrizo 3,297'Wilcox 3,477'Olmos 8,122'Anacacho 9,629'Austin Chalk 9,841'Navarro Escondido
42-013-35780 MIDDLE MCCOWEN · MARATHON OIL EF LLC
1.2 mi
Queen City 490'Reklaw 2,838'Carrizo 3,604'Wilcox 4,938'Anacacho 9,897'Austin Chalk 10,088'Navarro Bartosh Olmos Escondido
42-013-35781 MIDDLE MCCOWEN · MARATHON OIL EF LLC
1.2 mi
Queen City 490'Reklaw 2,838'Carrizo 3,604'Wilcox 4,938'Anacacho 9,866'Austin Chalk 10,089'Navarro Escondido Olmos Bartosh

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
10,437–16,089 ftPerforated

Casing (2)

SizeSet DepthCement
9.625"4,609 ft1,472 sx
5.5"16,196 ft2,710 sx

Permit History (2)

Applications (2)

#831143 A MARATHON OIL EF LLC
received 2018-11-01
#831143 A MARATHON OIL EF LLC
received 2017-09-20

Records & Logs

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

W-2/G-1 2019-01-18 log on file
W-2/G-1 2018-09-18 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 28.702750
Lon -98.382342

Well Details

Well Number
167H
Max Depth
19,500 ft
Drill Type
Horizontal
County
ATASCOSA
District
1
Completed
2018-07-19

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