42-255-36760

PRODUCING Horizontal

HOLLAND-OPIELA UNIT

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

Permits

1

Max Depth

22,000 ft

First Permit

2019-12-17

Latest Activity

2019-12-17

Lifespan

< 1 yr

Regulatory Status

Schedule

ON SCHEDULE

Completion

2021-02-28

Shut-In

Plugged

P-5 Org Status: Active

Production Summary

Cum Oil

bbl

Cum Gas

mcf

First Production

2011-10

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 388 ft (GR)

CSV
FormationTop Depth (MD)Subsea (+above / −below SL)
YEGUA - DISPOSAL (Yegua)1,596 ft-1,208 ft
QUEEN CITY 3,719 ft-3,331 ft
REKLAW 4,216 ft-3,828 ft
CARRIZO 4,855 ft-4,467 ft
WILCOX - DISPOSAL (Wilcox)6,169 ft-5,781 ft
AUSTIN CHALK - H2S (Austin Chalk)11,524 ft-11,136 ft
EAGLE FORD - H2S (Eagle Ford)11,718 ft-11,330 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
42-255-36761 HOLLAND OPIELA-TIPTON JONAS SA · MARATHON OIL EF LLC
0.0 mi
Yegua 1,596'Queen City 3,719'Reklaw 4,216'Carrizo 4,855'Wilcox 6,169'Austin Chalk 11,534'Eagle Ford 11,730'Sligo Frio Edwards
42-255-36759 HOLLAND-OPIELA UNIT · MARATHON OIL EF LLC
0.0 mi
Yegua 1,596'Queen City 3,719'Reklaw 4,216'Carrizo 4,855'Wilcox 6,169'Austin Chalk 11,513'Eagle Ford 11,704'Sligo Frio Edwards
42-255-36758 HOLLAND-OPIELA UNIT · MARATHON OIL EF LLC
0.0 mi
Yegua 1,596'Queen City 3,719'Reklaw 4,216'Carrizo 4,855'Wilcox 6,169'Austin Chalk 11,495'Eagle Ford 11,691'Sligo Frio Edwards
42-255-37688 HOLLAND-OPIELA UNIT · MARATHON OIL EF LLC
0.2 mi
Queen City 3,613'Reklaw 4,189'Carrizo 4,680'Wilcox 4,783'Austin Chalk 11,490'Eagle Ford 11,686'Frio Yegua Sligo Edwards
42-255-37679 HOLLAND-OPIELA UNIT · MARATHON OIL EF LLC
0.2 mi
Queen City 3,613'Reklaw 4,189'Carrizo 4,680'Wilcox 4,783'Austin Chalk 11,457'Austin Chalk 11,487'Eagle Ford 11,677'Sligo Yegua Frio Edwards
42-255-37680 HOLLAND-O.FORISTER 541 B SA · MARATHON OIL EF LLC
0.2 mi
Queen City 3,613'Reklaw 4,189'Carrizo 4,680'Wilcox 4,783'Austin Chalk 11,474'Eagle Ford 11,669'Frio Sligo Yegua Edwards
42-255-37682 B.DUPNIK-V.FOEGELLE-F.541 B SA · MARATHON OIL EF LLC
0.2 mi
Queen City 3,613'Reklaw 4,189'Carrizo 4,680'Wilcox 4,783'Austin Chalk 11,487'Eagle Ford 11,680'Yegua Sligo Frio Edwards
42-255-37681 VAJDOS F-FORISTER 541 A SA · MARATHON OIL EF LLC
0.2 mi
Queen City 3,613'Reklaw 4,189'Carrizo 4,680'Wilcox 4,783'Austin Chalk 11,455'Eagle Ford 11,646'Yegua Frio Edwards 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 (1)

IntervalType
12,249–18,086 ftPerforated

Casing (2)

SizeSet DepthCement
9.625"5,970 ft1,477 sx
5.5"18,194 ft2,844 sx

Permit History (1)

Applications (1)

#859846 A MARATHON OIL EF LLC
received 2019-12-10

Records & Logs

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

W-2/G-1 2021-03-16 log on file
W-2/G-1 2021-01-04
W-2/G-1 2020-03-29 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 28.855308
Lon -97.980639

Well Details

Well Number
6H
Max Depth
22,000 ft
Drill Type
Horizontal
County
KARNES
District
2
Completed
2021-02-28

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