42-013-35076

PRODUCING Horizontal

MIDDLE MCCOWEN

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

Permits

2

Max Depth

20,000 ft

First Permit

2014-06-30

Latest Activity

2014-06-30

Lifespan

< 1 yr

Regulatory Status

Schedule

ON SCHEDULE

Completion

2024-04-25

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 (20) Elevation 264 ft (GR)

CSV
FormationTop Depth (MD)Subsea (+above / −below SL)
QUEEN CITY 830 ft-566 ft
CARRIZO 1,900 ft-1,636 ft
REKLAW 1,900 ft-1,636 ft
REKLAW 2,847 ft-2,583 ft
BARTOSH 3,150 ft-2,886 ft
REKLAW 3,150 ft-2,886 ft
CARRIZO 3,616 ft-3,352 ft
WILCOX - DISPOSAL (Wilcox)3,718 ft-3,454 ft
BARTOSH 4,660 ft-4,396 ft
CARRIZO 4,660 ft-4,396 ft
ANACACHO - H2S (Anacacho)10,045 ft-9,781 ft
AUSTIN CHALK - H2S, DISPOSAL (Austin Chalk)10,304 ft-10,040 ft
ANACACHO - H2S (Anacacho)
AUSTIN CHALK - H2S, DISPOSAL (Austin Chalk)
BARTOSH
ESCONDIDO - H2S, DISPOSAL (Escondido)
NAVARRO - H2S (Navarro)
OLMOS - DISPOSAL (Olmos)
QUEEN CITY
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
42-013-35078 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
42-013-35072 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
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
42-013-35071 MIDDLE MCCOWEN · MARATHON OIL EF LLC
0.0 mi
Cook Mountain 1,248'Queen City 1,932'Queen City 2,172'Reklaw 2,817'Carrizo 3,532'Carrizo 3,586'Wilcox 3,684'Wilcox 3,684'Wilcox 4,593'Wilcox 4,593'Anacacho 10,048'Anacacho 10,048' +10 more
42-013-35070 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' +12 more
42-013-36092 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 10,119'Austin Chalk 10,302'Navarro Bartosh Escondido Olmos
42-013-36091 MIDDLE MCCOWEN · MARATHON OIL EF LLC
0.0 mi
Queen City 2,202'Reklaw 2,847'Carrizo 3,616'Wilcox 3,718'Anacacho 10,082'Austin Chalk 10,302'Olmos Escondido Bartosh Navarro
42-013-36094 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 10,069'Austin Chalk 10,314'Eagle Ford 10,459'Reklaw 28,947'Olmos Escondido Bartosh +1 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
10,608–18,524 ftPerforated

Casing (2)

SizeSet DepthCement
9.625"4,979 ft1,730 sx
5.5"18,524 ft3,728 sx

Permit History (2)

Applications (2)

#788124 A MARATHON OIL EF LLC
received 2023-10-05
#788124 A MARATHON OIL EF LLC
received 2014-05-28

Records & Logs

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

W-2/G-1 2024-07-22
W-2/G-1 2024-02-09 log on file
W-2/G-1 2023-09-26
W-2/G-1 2016-07-27
W-2/G-1 2016-05-12

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 28.663342
Lon -98.373581

Well Details

Well Number
110H
Max Depth
20,000 ft
Drill Type
Horizontal
County
ATASCOSA
District
1
Completed
2024-04-25

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