42-255-37016

PRODUCING Horizontal

DAVILA-WESTON HENKE UNIT SA B

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

Permits

1

Max Depth

23,000 ft

First Permit

2020-10-07

Latest Activity

2020-10-07

Lifespan

< 1 yr

Regulatory Status

Schedule

ON SCHEDULE

Completion

2022-05-24

Shut-In

Plugged

P-5 Org Status: Active

Production Summary

Cum Oil

bbl

Cum Gas

mcf

First Production

2020-12

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 433 ft (GR)

CSV
FormationTop Depth (MD)Subsea (+above / −below SL)
YEGUA - DISPOSAL (Yegua)1,667 ft-1,234 ft
QUEEN CITY 4,065 ft-3,632 ft
REKLAW 4,462 ft-4,029 ft
CARRIZO 5,052 ft-4,619 ft
WILCOX - DISPOSAL (Wilcox)6,225 ft-5,792 ft
AUSTIN CHALK - H2S (Austin Chalk)11,885 ft-11,452 ft
EAGLE FORD - H2S (Eagle Ford)12,003 ft-11,570 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
42-255-37017 DAVILA-WESTON HENKE UNIT SA C · MARATHON OIL EF LLC
0.0 mi
Yegua 1,667'Queen City 4,065'Reklaw 4,462'Carrizo 5,052'Wilcox 6,225'Austin Chalk 11,877'Eagle Ford 12,002'Frio Sligo Edwards
42-255-37015 DAVILA-WESTON HENKE UNIT SA A · MARATHON OIL EF LLC
0.0 mi
Yegua 1,667'Queen City 4,065'Reklaw 4,462'Carrizo 5,052'Wilcox 6,225'Austin Chalk 11,886'Eagle Ford 12,012'Sligo Frio Edwards
42-255-37018 DAVILA-MOBIL A-KENNEDY UNIT SA · MARATHON OIL EF LLC
0.0 mi
Yegua 1,667'Queen City 4,065'Reklaw 4,462'Carrizo 5,052'Wilcox 6,225'Austin Chalk 11,847'Eagle Ford 11,968'Frio Sligo Edwards
42-255-37022 DAVILA-GRAHAM-KOWALIK SA · MARATHON OIL EF LLC
0.0 mi
Yegua 1,667'Queen City 4,065'Reklaw 4,462'Carrizo 5,052'Wilcox 6,225'Austin Chalk 11,923'Eagle Ford 12,038'Frio Sligo Edwards
42-255-35509 KOWALIK 228-1R · MARATHON OIL EF LLC
0.2 mi
Yegua 1,802'Queen City 3,948'Reklaw 4,416'Carrizo 4,906'Austin Chalk 11,838'Eagle Ford 11,935'Edwards Sligo Frio Wilcox
42-255-35510 KOWALIK 228-1R · MARATHON OIL EF LLC
0.2 mi
Yegua 1,802'Yegua 1,826'Queen City 3,948'Queen City 4,037'Reklaw 4,416'Reklaw 4,704'Carrizo 4,906'Carrizo 4,999'Wilcox 6,461'Austin Chalk 11,809'Austin Chalk 11,858'Eagle Ford 11,907' +5 more
42-255-35511 KOWALIK 228-1R · MARATHON OIL EF LLC
0.2 mi
Yegua 1,826'Queen City 4,037'Reklaw 4,704'Carrizo 4,999'Wilcox 6,461'Austin Chalk 11,809'Eagle Ford 11,907'Sligo Frio Edwards
42-255-37703 RANCHO GRANDE TRUST-KOWALIK SA · MARATHON OIL EF LLC
0.3 mi
Queen City 3,784'Reklaw 4,247'Carrizo 4,920'Wilcox 4,992'Austin Chalk 11,777'Eagle Ford 11,889'Yegua Frio Sligo Edwards

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
12,310–23,017 ftPerforated

Casing (2)

SizeSet DepthCement
9.625"6,104 ft1,817 sx
5.5"23,017 ft4,511 sx

Permit History (1)

Applications (1)

#865401 A MARATHON OIL EF LLC
received 2020-10-05

Records & Logs

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

W-2/G-1 2022-07-14 log on file
W-2/G-1 2021-07-09
W-2/G-1 2021-02-04 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 28.768422
Lon -98.008792

Well Details

Well Number
11H
Max Depth
23,000 ft
Drill Type
Horizontal
County
KARNES
District
2
Completed
2022-05-24

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