42-013-35953

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

2022-11-16

Latest Activity

2022-11-16

Lifespan

< 1 yr

Regulatory Status

Schedule

ON SCHEDULE

Completion

2023-07-23

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 2,379 ft-2,129 ft
REKLAW 2,818 ft-2,568 ft
CARRIZO 3,585 ft-3,335 ft
WILCOX - DISPOSAL (Wilcox)3,683 ft-3,433 ft
ANACACHO - H2S (Anacacho)10,033 ft-9,783 ft
AUSTIN CHALK - H2S, DISPOSAL (Austin Chalk)10,283 ft-10,033 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
42-013-35952 MIDDLE MCCOWEN · MARATHON OIL EF LLC
0.0 mi
Queen City 2,379'Reklaw 2,818'Carrizo 3,585'Wilcox 3,683'Anacacho 10,039'Austin Chalk 10,286'Anacacho 10,339'Escondido Olmos Bartosh Navarro
42-013-35951 MIDDLE MCCOWEN · MARATHON OIL EF LLC
0.0 mi
Queen City 2,379'Reklaw 2,818'Carrizo 3,585'Wilcox 3,683'Anacacho 10,044'Austin Chalk 10,303'Navarro Escondido Olmos Bartosh
42-013-35950 MIDDLE MCCOWEN · MARATHON OIL EF LLC
0.0 mi
Queen City 2,379'Reklaw 2,818'Carrizo 3,585'Wilcox 3,683'Anacacho 10,043'Austin Chalk 10,273'Olmos Bartosh Escondido Navarro
42-013-35949 MIDDLE MCCOWEN · MARATHON OIL EF LLC
0.0 mi
Queen City 2,379'Reklaw 2,818'Carrizo 3,585'Wilcox 3,683'Wilcox 3,686'Anacacho 10,017'Austin Chalk 10,223'Navarro Bartosh Olmos Escondido
42-013-36103 MIDDLE MCCOWEN · MARATHON OIL EF LLC
0.0 mi
Queen City 2,172'Reklaw 2,817'Carrizo 3,586'Wilcox 3,684'Anacacho 10,036'Austin Chalk 10,297'Navarro Escondido Olmos Bartosh
42-013-36099 MIDDLE MCCOWEN · MARATHON OIL EF LLC
0.0 mi
Cook Mountain 1,248'Queen City 2,172'Reklaw 2,817'Carrizo 3,586'Wilcox 3,684'Anacacho 10,109'Austin Chalk 10,290'Olmos Bartosh Escondido Navarro
42-013-36101 MIDDLE MCCOWEN · MARATHON OIL EF LLC
0.0 mi
Cook Mountain 1,248'Queen City 2,172'Reklaw 2,817'Carrizo 3,586'Wilcox 3,684'Anacacho 10,048'Austin Chalk 10,301'Escondido Olmos Bartosh Navarro
42-013-36102 MIDDLE MCCOWEN · MARATHON OIL EF LLC
0.0 mi
Cook Mountain 1,248'Queen City 2,172'Reklaw 2,817'Carrizo 3,586'Wilcox 3,684'Wilcox 3,684'Anacacho 10,058'Anacacho 10,058'Austin Chalk 10,309'Austin Chalk 10,309'Eagle Ford 10,446'Bartosh +3 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
10,792–18,756 ftPerforated

Casing (2)

SizeSet DepthCement
9.625"5,058 ft1,239 sx
6"18,756 ft3,000 sx

Permit History (1)

Applications (1)

#885602 A MARATHON OIL EF LLC
received 2022-11-08

Records & Logs

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

W-2/G-1 2023-09-07 log on file
W-2/G-1 2023-08-30
W-2/G-1 2023-03-23 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 28.667814
Lon -98.367231

Well Details

Well Number
119H
Max Depth
22,000 ft
Drill Type
Horizontal
County
ATASCOSA
District
1
Completed
2023-07-23

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