42-255-37317

SHUT IN Horizontal

BROWN-DUPNIK B UNIT

KARNES County · District 2 · MARATHON OIL EF LLC · EAGLEVILLE (EAGLE FORD-2)

Permits

2

Max Depth

22,000 ft

First Permit

2021-09-21

Latest Activity

2021-09-21

Lifespan

< 1 yr

Regulatory Status

Schedule

ON SCHEDULE

Completion

2022-05-05

Shut-In

Plugged

P-5 Org Status: Active

Production Summary

Cum Oil

bbl

Cum Gas

mcf

First Production

2013-02

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 (11) Elevation 439 ft (GR)

CSV
FormationTop Depth (MD)Subsea (+above / −below SL)
YEGUA - DISPOSAL (Yegua)1,795 ft-1,356 ft
QUEEN CITY 3,896 ft-3,457 ft
REKLAW 4,480 ft-4,041 ft
CARRIZO 4,833 ft-4,394 ft
WILCOX - DISPOSAL (Wilcox)6,436 ft-5,997 ft
WILCOX - DISPOSAL (Wilcox)6,463 ft-6,024 ft
AUSTIN CHALK - H2S (Austin Chalk)11,447 ft-11,008 ft
EAGLE FORD - H2S (Eagle Ford)11,657 ft-11,218 ft
EDWARDS - H2S (Edwards)
FRIO - DISPOSAL (Frio)
SLIGO - H2S (Sligo)

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
42-255-37318 BROWN-DUPNIK B UNIT · MARATHON OIL EF LLC
0.0 mi
Yegua 1,758'Queen City 3,874'Reklaw 4,460'Carrizo 4,813'Wilcox 6,417'Austin Chalk 11,433'Austin Chalk 11,443'Eagle Ford 11,644'Frio Edwards Sligo
42-255-37316 DAVENPORT-BROWN DUPNIK B SA · MARATHON OIL EF LLC
0.0 mi
Yegua 1,745'Queen City 3,861'Reklaw 4,447'Carrizo 4,800'Wilcox 6,404'Austin Chalk 11,422'Eagle Ford 11,641'Frio Sligo Edwards
42-255-37676 VAJDOS-FOEGELLE UNIT · MARATHON OIL EF LLC
0.2 mi
Queen City 3,620'Reklaw 4,213'Carrizo 4,716'Wilcox 4,799'Austin Chalk 11,470'Eagle Ford 11,669'Yegua Sligo Frio Edwards
42-255-37677 VAJDOS-FOEGELLE UNIT · MARATHON OIL EF LLC
0.2 mi
Queen City 3,620'Reklaw 4,213'Carrizo 4,716'Wilcox 4,799'Austin Chalk 11,449'Eagle Ford 11,648'Yegua Frio Edwards Sligo
42-255-37678 HEDTKE-MARTINEZ-HENKE SA · MARATHON OIL EF LLC
0.2 mi
Queen City 3,620'Reklaw 4,213'Carrizo 4,716'Wilcox 4,799'Austin Chalk 11,439'Eagle Ford 11,634'Yegua Sligo Frio Edwards
42-255-37675 HEDTKE-HENKE UNIT · MARATHON OIL EF LLC
0.2 mi
Queen City 3,620'Reklaw 4,213'Carrizo 4,716'Wilcox 4,799'Austin Chalk 11,426'Eagle Ford 11,623'Yegua Sligo Frio Edwards
42-255-37674 HEDTKE-HENKE UNIT · MARATHON OIL EF LLC
0.2 mi
Queen City 3,620'Reklaw 4,213'Carrizo 4,716'Wilcox 4,799'Austin Chalk 11,408'Eagle Ford 11,603'Edwards Sligo Yegua Frio
42-255-37681 VAJDOS F-FORISTER 541 A SA · MARATHON OIL EF LLC
0.6 mi
Queen City 3,613'Reklaw 4,189'Carrizo 4,680'Wilcox 4,783'Austin Chalk 11,455'Eagle Ford 11,646'Edwards Yegua Frio Sligo

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 (2)

IntervalType
12,062–18,174 ftPerforated
12,062–18,884 ftPerforated

Casing (2)

SizeSet DepthCement
9.625"5,724 ft1,660 sx
6"18,884 ft2,960 sx

Permit History (2)

Applications (2)

#872791 A MARATHON OIL EF LLC
received 2021-10-14
#872791 A MARATHON OIL EF LLC
received 2021-09-15

Records & Logs

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

W-2/G-1 2022-07-08 log on file
W-2/G-1 2022-03-10
W-2/G-1 2022-01-25 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 28.850511
Lon -97.992233

Well Details

Well Number
2H
Max Depth
22,000 ft
Drill Type
Horizontal
County
KARNES
District
2
Completed
2022-05-05

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