42-255-37482

PRODUCING Horizontal

DULLYE 01

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

Permits

2

Max Depth

22,000 ft

First Permit

2022-05-05

Latest Activity

2022-05-05

Lifespan

< 1 yr

Regulatory Status

Schedule

ON SCHEDULE

Completion

2023-01-08

Shut-In

Plugged

P-5 Org Status: Active

!

EWA / Permit operator mismatch

Scheduling: MARATHON OIL EF LLC ≠ Permit: ENSIGN OPERATING LLC

Resolved via: productionMARATHON OIL EF LLC

Production Summary

Cum Oil

bbl

Cum Gas

mcf

First Production

2023-01

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 226 ft (GL)

CSV
FormationTop Depth (MD)Subsea (+above / −below SL)
QUEEN CITY 5,484 ft-5,258 ft
REKLAW 5,687 ft-5,461 ft
CARRIZO 5,856 ft-5,630 ft
WILCOX - DISPOSAL (Wilcox)5,856 ft-5,630 ft
AUSTIN CHALK - H2S (Austin Chalk)12,911 ft-12,685 ft
EAGLE FORD - H2S (Eagle Ford)13,009 ft-12,783 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
42-255-37489 RIDLEY FARMS 01 - DULLYE 01 C · ENSIGN OPERATING LLC
0.0 mi
Queen City 5,474'Reklaw 5,727'Carrizo 5,867'Wilcox 5,867'Austin Chalk 12,906'Eagle Ford 13,007'Yegua Sligo Frio Edwards
42-255-37488 RIDLEY FARMS 01 - DULLYE 01 B · ENSIGN OPERATING LLC
0.0 mi
Queen City 5,449'Reklaw 5,735'Carrizo 5,735'Wilcox 5,876'Austin Chalk 12,912'Eagle Ford 13,019'Edwards Sligo Frio Yegua
42-255-37487 RIDLEY FARMS 01 - DULLYE 01 AC · ENSIGN OPERATING LLC
0.0 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'Eagle Ford Edwards Sligo Frio
42-255-37486 RIDLEY FARMS 01 · ENSIGN OPERATING LLC
0.4 mi
Queen City 5,429'Reklaw 5,726'Carrizo 5,912'Wilcox 5,912'Austin Chalk 12,895'Eagle Ford 13,091'Yegua Frio Edwards Sligo
42-255-37485 RIDLEY FARMS 01 · ENSIGN OPERATING LLC
0.4 mi
Queen City 5,423'Reklaw 5,700'Carrizo 5,897'Wilcox 5,897'Austin Chalk 12,906'Eagle Ford 13,110'Yegua Frio Edwards Sligo
42-255-37892 DULLYE 01 · MARATHON OIL EF LLC
0.4 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'Yegua Frio Sligo Edwards
42-255-37484 RIDLEY FARMS 01 · ENSIGN OPERATING LLC
0.4 mi
Queen City 5,434'Reklaw 5,746'Carrizo 5,910'Wilcox 5,910'Austin Chalk 12,918'Eagle Ford 13,073'Frio Yegua Edwards Sligo
42-255-37895 CHOATE-DULLYE SA1 · MARATHON OIL EF LLC
0.4 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 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
13,441–17,867 ftPerforated

Casing (2)

SizeSet DepthCement
9.625"4,070 ft1,325 sx
5.5"17,934 ft4,189 sx

Permit History (2)

Applications (2)

#879627 A ENSIGN OPERATING LLC
received 2022-06-13
#879627 A ENSIGN OPERATING LLC
received 2022-04-29

Records & Logs

1 completion filing on record · 1 with log images at RRC.

W-2/G-1 2023-02-28 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 28.876460
Lon -97.757537

Well Details

Well Number
05H
Max Depth
22,000 ft
Drill Type
Horizontal
County
KARNES
District
2
Completed
2023-01-08

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