42-013-35960

PRODUCING Horizontal

MIDDLE MCCOWEN

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

Permits

1

Max Depth

26,000 ft

First Permit

2022-12-12

Latest Activity

2022-12-12

Lifespan

< 1 yr

Regulatory Status

Schedule

ON SCHEDULE

Completion

2023-07-19

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 (10) Elevation 264 ft (GL)

CSV
FormationTop Depth (MD)Subsea (+above / −below SL)
QUEEN CITY 2,201 ft-1,937 ft
REKLAW 2,846 ft-2,582 ft
CARRIZO 3,615 ft-3,351 ft
WILCOX - DISPOSAL (Wilcox)3,716 ft-3,452 ft
ANACACHO - H2S (Anacacho)10,044 ft-9,780 ft
AUSTIN CHALK - H2S, DISPOSAL (Austin Chalk)10,253 ft-9,989 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
42-013-35961 MIDDLE MCCOWEN · MARATHON OIL EF LLC
0.0 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'Olmos Bartosh Buda Escondido Navarro
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 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 Olmos Bartosh Escondido
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'Bartosh Olmos Escondido Navarro
42-013-35080 MIDDLE MCCOWEN · MARATHON OIL EF LLC
0.0 mi
Queen City 830'Cook Mountain 1,278'Carrizo 1,580'Reklaw 1,900'Queen City 2,202'Reklaw 2,847'Bartosh 3,150'Carrizo 3,616'Wilcox 3,718'Wilcox 3,718'Wilcox 4,660'Wilcox 4,660' +11 more
42-013-35078 MIDDLE MCCOWEN · MARATHON OIL EF LLC
0.0 mi
Queen City 830'Cook Mountain 1,278'Carrizo 1,580'Reklaw 1,900'Queen City 2,202'Reklaw 2,847'Bartosh 3,150'Carrizo 3,616'Wilcox 3,718'Wilcox 3,718'Wilcox 4,660'Wilcox 4,660' +14 more
42-013-35076 MIDDLE MCCOWEN · MARATHON OIL EF LLC
0.0 mi
Queen City 830'Reklaw 1,900'Carrizo 1,900'Reklaw 2,847'Reklaw 3,150'Bartosh 3,150'Carrizo 3,616'Wilcox 3,718'Carrizo 4,660'Bartosh 4,660'Anacacho 10,045'Austin Chalk 10,304' +8 more
42-013-35072 MIDDLE MCCOWEN · MARATHON OIL EF LLC
0.0 mi
Queen City 830'Cook Mountain 1,278'Carrizo 1,580'Reklaw 1,900'Queen City 2,202'Reklaw 2,847'Bartosh 3,150'BARTHOSH 3,150'Carrizo 3,616'Wilcox 3,718'Wilcox 3,718'Wilcox 4,660' +12 more

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
11,015–18,460 ftPerforated

Casing (2)

SizeSet DepthCement
9.625"5,007 ft1,241 sx
6"18,460 ft2,981 sx

Permit History (1)

Applications (1)

#886204 A MARATHON OIL EF LLC
received 2022-12-05

Records & Logs

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

W-2/G-1 2023-08-28 log on file
W-2/G-1 2023-08-10 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 28.663601
Lon -98.373216

Well Details

Well Number
106H
Max Depth
26,000 ft
Drill Type
Horizontal
County
ATASCOSA
District
1
Completed
2023-07-19

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