42-255-37893

PRODUCING Horizontal

DULLYE 01

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

Permits

1

Max Depth

22,000 ft

First Permit

2023-12-18

Latest Activity

2023-12-18

Lifespan

< 1 yr

Regulatory Status

Schedule

ON SCHEDULE

Completion

2024-04-25

Shut-In

Plugged

P-5 Org Status: Active

Production Summary

Cum Oil

bbl

Cum Gas

mcf

First Production

2024-01

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 230 ft (GL)

CSV
FormationTop Depth (MD)Subsea (+above / −below SL)
QUEEN CITY 4,358 ft-4,128 ft
REKLAW 4,758 ft-4,528 ft
CARRIZO 5,858 ft-5,628 ft
WILCOX - DISPOSAL (Wilcox)6,076 ft-5,846 ft
AUSTIN CHALK - H2S (Austin Chalk)12,791 ft-12,561 ft
EAGLE FORD - H2S (Eagle Ford)12,981 ft-12,751 ft
EDWARDS - H2S (Edwards)
FRIO - DISPOSAL (Frio)
SLIGO - H2S (Sligo)
YEGUA - DISPOSAL (Yegua)

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
42-255-37894 DULLYE 01 · MARATHON OIL EF LLC
0.0 mi
Sparta 4,058'Queen City 4,358'Reklaw 4,758'Carrizo 5,858'Wilcox 6,076'Austin Chalk 12,672'Anacacho 12,672'Austin Chalk 12,788'Eagle Ford 12,788'Eagle Ford 12,979'Yegua Frio +2 more
42-255-37895 CHOATE-DULLYE SA1 · MARATHON OIL EF LLC
0.0 mi
Sparta 4,058'Queen City 4,358'Reklaw 4,758'Carrizo 5,858'Wilcox 6,076'Anacacho 12,660'Austin Chalk 12,777'Eagle Ford 12,980'Yegua Frio Sligo Edwards
42-255-37892 DULLYE 01 · MARATHON OIL EF LLC
0.0 mi
Frio 4,058'Queen City 4,358'Reklaw 4,758'Carrizo 5,858'Wilcox 6,076'Austin Chalk 12,861'Eagle Ford 13,082'Frio Yegua Sligo Edwards
42-255-37482 DULLYE 01 · ENSIGN OPERATING LLC
0.4 mi
Queen City 5,484'Reklaw 5,687'Carrizo 5,856'Wilcox 5,856'Austin Chalk 12,911'Eagle Ford 13,009'Frio Yegua Sligo Edwards
42-255-37489 RIDLEY FARMS 01 - DULLYE 01 C · ENSIGN OPERATING LLC
0.4 mi
Queen City 5,474'Reklaw 5,727'Carrizo 5,867'Wilcox 5,867'Austin Chalk 12,906'Eagle Ford 13,007'Frio Yegua Sligo Edwards
42-255-37488 RIDLEY FARMS 01 - DULLYE 01 B · ENSIGN OPERATING LLC
0.4 mi
Queen City 5,449'Reklaw 5,735'Carrizo 5,735'Wilcox 5,876'Austin Chalk 12,912'Eagle Ford 13,019'Sligo Frio Edwards Yegua
42-255-37487 RIDLEY FARMS 01 - DULLYE 01 AC · ENSIGN OPERATING LLC
0.4 mi
Yegua 2,867'Queen City 5,439'Reklaw 5,720'Carrizo 5,924'Wilcox 5,924'Austin Chalk 12,898'Eagle Ford 13,040'Edwards Sligo Eagle Ford Frio
42-255-37486 RIDLEY FARMS 01 · ENSIGN OPERATING LLC
0.8 mi
Queen City 5,429'Reklaw 5,726'Wilcox 5,912'Carrizo 5,912'Austin Chalk 12,895'Eagle Ford 13,091'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
13,570–19,879 ftPerforated

Casing (2)

SizeSet DepthCement
9.625"5,701 ft1,473 sx
5.5"19,879 ft3,758 sx

Permit History (1)

Applications (1)

#895423 A MARATHON OIL EF LLC
received 2023-11-20

Records & Logs

3 completion filings on record · 1 with log images at RRC.

W-2/G-1 2024-07-22
W-2/G-1 2024-05-24
W-2/G-1 2024-02-08 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 28.873488
Lon -97.763226

Well Details

Well Number
07H
Max Depth
22,000 ft
Drill Type
Horizontal
County
KARNES
District
2
Completed
2024-04-25

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
3,166