42-013-35506

PRODUCING Horizontal

HENKE-WILHELM UNIT A

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

Permits

2

Max Depth

20,000 ft

First Permit

2017-07-13

Latest Activity

2017-07-13

Lifespan

< 1 yr

Regulatory Status

Schedule

ON SCHEDULE

Completion

2019-02-13

Shut-In

Plugged

P-5 Org Status: Active

Production Summary

Cum Oil

bbl

Cum Gas

mcf

First Production

2012-03

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 323 ft (GR)

CSV
FormationTop Depth (MD)Subsea (+above / −below SL)
QUEEN CITY 2,815 ft-2,492 ft
REKLAW 3,130 ft-2,807 ft
BARTOSH 3,412 ft-3,089 ft
CARRIZO 3,790 ft-3,467 ft
WILCOX - DISPOSAL (Wilcox)6,344 ft-6,021 ft
NAVARRO - H2S (Navarro)8,296 ft-7,973 ft
OLMOS - DISPOSAL (Olmos)8,866 ft-8,543 ft
ANACACHO - H2S (Anacacho)10,325 ft-10,002 ft
AUSTIN CHALK - H2S, DISPOSAL (Austin Chalk)10,530 ft-10,207 ft
ESCONDIDO - H2S, DISPOSAL (Escondido)

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
42-013-35507 HENKE-WILHELM UNIT A · MARATHON OIL EF LLC
0.0 mi
Queen City 2,815'Reklaw 3,130'Bartosh 3,412'Carrizo 3,790'Wilcox 6,344'Navarro 8,296'Olmos 8,866'Anacacho 10,323'Austin Chalk 10,524'Escondido
42-013-35505 HENKE-WILHELM UNIT A · MARATHON OIL EF LLC
0.0 mi
Queen City 2,815'Reklaw 3,130'Bartosh 3,412'Carrizo 3,790'Wilcox 6,344'Navarro 8,296'Olmos 8,866'Anacacho 10,326'Austin Chalk 10,533'Escondido
42-013-35599 W. SMITH B-A-MCS PSA · MARATHON OIL EF LLC
0.1 mi
Queen City 2,815'Reklaw 3,130'Bartosh 3,412'Carrizo 3,790'Wilcox 6,344'Navarro 8,296'Olmos 8,866'Anacacho 10,343'Austin Chalk 10,541'Escondido Navarro
42-013-35516 WILHELM-SMITH UNIT B · MARATHON OIL EF LLC
0.3 mi
Queen City 2,865'Reklaw 3,179'Bartosh 3,462'Carrizo 3,840'Wilcox 5,215'Navarro 8,346'Olmos 8,916'Anacacho 10,386'Anacacho 10,419'Austin Chalk 10,615'Austin Chalk 10,618'Bartosh +1 more
42-013-35515 WILHELM-SMITH UNIT B · MARATHON OIL EF LLC
0.3 mi
Queen City 2,865'Reklaw 3,179'Carrizo 3,840'Wilcox 5,215'Navarro 8,346'Olmos 8,916'Anacacho 10,419'Austin Chalk 10,615'Bartosh Escondido
42-013-35514 WILHELM-SMITH UNIT B · MARATHON OIL EF LLC
0.3 mi
Queen City 2,865'Reklaw 3,179'Carrizo 3,840'Wilcox 5,215'Navarro 8,346'Olmos 8,916'Anacacho 10,417'Anacacho 10,419'Austin Chalk 10,607'Austin Chalk 10,615'Escondido Bartosh
42-013-35592 GIESE UNIT · MARATHON OIL EF LLC
0.7 mi
Queen City 2,762'Reklaw 3,076'Bartosh 3,359'Carrizo 3,737'Wilcox 5,112'Wilcox 5,113'Navarro 8,243'Olmos 8,813'Anacacho 10,334'Austin Chalk 10,523'Escondido
42-013-35593 GIESE UNIT · MARATHON OIL EF LLC
0.7 mi
Queen City 2,762'Reklaw 3,076'Bartosh 3,359'Carrizo 3,737'Wilcox 5,112'Navarro 8,243'Olmos 8,813'Anacacho 10,325'Austin Chalk 10,513'Escondido

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
10,805–15,048 ftPerforated

Casing (2)

SizeSet DepthCement
9.625"5,210 ft1,540 sx
5.5"15,146 ft2,552 sx

Permit History (2)

Applications (2)

#828309 A MARATHON OIL EF LLC
received 2018-06-13
#828309 A MARATHON OIL EF LLC
received 2017-06-28

Records & Logs

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

W-2/G-1 2019-03-06 log on file
W-2/G-1 2019-02-04 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 28.733656
Lon -98.215125

Well Details

Well Number
3H
Max Depth
20,000 ft
Drill Type
Horizontal
County
ATASCOSA
District
1
Completed
2019-02-13

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