42-013-36191

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

2024-08-21

Latest Activity

2024-08-21

Lifespan

< 1 yr

Regulatory Status

Schedule

ON SCHEDULE

Completion

2025-04-07

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 219 ft (GR)

CSV
FormationTop Depth (MD)Subsea (+above / −below SL)
QUEEN CITY 2,116 ft-1,897 ft
REKLAW 2,752 ft-2,533 ft
CARRIZO 3,387 ft-3,168 ft
WILCOX - DISPOSAL (Wilcox)3,521 ft-3,302 ft
ANACACHO - H2S (Anacacho)9,821 ft-9,602 ft
AUSTIN CHALK - H2S, DISPOSAL (Austin Chalk)10,163 ft-9,944 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
42-013-36192 MIDDLE MCCOWEN · MARATHON OIL EF LLC
0.0 mi
Queen City 2,116'Reklaw 2,752'Carrizo 3,387'Wilcox 3,521'Anacacho 9,971'Austin Chalk 10,120'Navarro Olmos Escondido Bartosh
42-013-36193 MIDDLE MCCOWEN · MARATHON OIL EF LLC
0.0 mi
Queen City 2,120'Reklaw 2,756'Carrizo 3,391'Wilcox 3,525'Anacacho 9,902'Austin Chalk 10,147'Navarro Escondido Olmos Bartosh
42-013-36190 MIDDLE MCCOWEN · MARATHON OIL EF LLC
0.0 mi
Queen City 2,120'Reklaw 2,756'Carrizo 3,391'Wilcox 3,525'Anacacho 9,900'Austin Chalk 10,139'Escondido Olmos Bartosh Navarro
42-013-36196 MIDDLE MCCOWEN · MARATHON OIL EF LLC
0.0 mi
Queen City 2,118'Reklaw 2,752'Carrizo 3,385'Wilcox 3,519'Anacacho 9,744'Austin Chalk 10,122'Navarro Bartosh Escondido Olmos
42-013-36189 MIDDLE MCCOWEN · MARATHON OIL EF LLC
0.0 mi
Queen City 2,118'Reklaw 2,752'Carrizo 3,385'Wilcox 3,519'Anacacho 9,975'Austin Chalk 10,210'Olmos Escondido Navarro Bartosh
42-013-36188 MIDDLE MCCOWEN · MARATHON OIL EF LLC
0.0 mi
Queen City 2,118'Reklaw 2,752'Carrizo 3,385'Wilcox 3,519'Anacacho 9,947'Austin Chalk 10,211'Olmos Escondido Bartosh Navarro
42-013-36195 MIDDLE MCCOWEN · MARATHON OIL EF LLC
0.0 mi
Queen City 2,118'Reklaw 2,752'Carrizo 3,385'Wilcox 3,519'Anacacho 9,930'Austin Chalk 10,133'Navarro Escondido Olmos Bartosh
42-013-36194 MIDDLE MCCOWEN · MARATHON OIL EF LLC
0.1 mi
Queen City 2,118'Reklaw 2,752'Carrizo 3,385'Wilcox 3,519'Anacacho 9,929'Austin Chalk 10,157'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
10,997–21,229 ftPerforated

Casing (2)

SizeSet DepthCement
9.625"5,008 ft1,511 sx
5.5"21,228 ft3,822 sx

Permit History (1)

Applications (1)

#902150 A MARATHON OIL EF LLC
received 2024-08-20

Records & Logs

1 completion filing on record · 1 with log images at RRC.

W-2/G-1 2025-06-24 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 28.688503
Lon -98.353927

Well Details

Well Number
196H
Max Depth
22,000 ft
Drill Type
Horizontal
County
ATASCOSA
District
1
Completed
2025-04-07

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