42-383-41598

PRODUCING Horizontal

STUDLEY DN WEST E 21-30

REAGAN County · District 7 · DE CENTRAL OPERATING LLC · SPRABERRY (TREND AREA)

Permits

2

Max Depth

10,605 ft

First Permit

2023-12-06

Latest Activity

2023-12-06

Lifespan

< 1 yr

Regulatory Status

Schedule

ON SCHEDULE

Completion

2024-07-17

Shut-In

Plugged

P-5 Org Status: Active

!

EWA / Permit operator mismatch

Scheduling: DE CENTRAL OPERATING LLC ≠ Permit: DE IV OPERATING, LLC

Resolved via: productionDE CENTRAL OPERATING, LLC

Production Summary

Cum Oil

bbl

Cum Gas

mcf

First Production

2024-02

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 (14) Elevation 2,605 ft (GL)

CSV
FormationTop Depth (MD)Subsea (+above / −below SL)
QUEEN 2,320 ft+285 ft
GRAYBURG 2,685 ft-80 ft
SAN ANDRES - SALTWATER FLOW, POS (San Andres)2,864 ft-259 ft
CLEARFORK (Clear Fork)4,777 ft-2,172 ft
SPRABERRY 5,769 ft-3,164 ft
WOLFCAMP 7,360 ft-4,755 ft
CLEARFORK (Clear Fork)
ELLENBURGER
FUSSELMAN
GRAYBURG
QUEEN
SAN ANDRES - SALTWATER FLOW, POS (San Andres)
SPRABERRY
STRAWN

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
42-383-41599 STUDLEY DN WEST EE 21-30 · DE IV OPERATING, LLC
0.0 mi
Queen 2,320'Grayburg 2,686'San Andres 2,867'Clear Fork 4,768'Spraberry 5,771'Wolfcamp 7,357'San Andres Strawn Clear Fork Queen Ellenburger Grayburg +2 more
42-383-41597 STUDLEY DN WEST C 21-30 · DE IV OPERATING, LLC
0.0 mi
Grayburg 2,316'Queen 2,683'San Andres 2,864'Clear Fork 4,771'Spraberry 5,768'Wolfcamp 7,352'Ellenburger Fusselman Strawn
42-383-41594 STUDLEY DN WEST A 21-30 · DE IV OPERATING, LLC
0.0 mi
Grayburg 2,315'Queen 2,683'San Andres 2,865'Clear Fork 4,769'Spraberry 5,767'Wolfcamp 7,354'Strawn Ellenburger Fusselman
42-383-41600 STUDLEY DN WEST G 21-30 · DE IV OPERATING, LLC
0.0 mi
Grayburg 2,321'Queen 2,680'San Andres 2,862'Clear Fork 4,754'Spraberry 5,769'Wolfcamp 7,356'Ellenburger Fusselman Strawn
42-383-41596 STUDLEY DN WEST A 21-30 · DE IV OPERATING, LLC
0.0 mi
Grayburg 2,314'Queen 2,680'San Andres 2,861'Clear Fork 4,770'Spraberry 5,768'Wolfcamp 7,351'Strawn Ellenburger Fusselman
42-383-41602 STUDLEY DN EAST II 21-30 · DE IV OPERATING, LLC
0.5 mi
Queen 2,217'Grayburg 2,568'San Andres 2,746'Clear Fork 4,650'Spraberry 5,679'Wolfcamp 7,267'Fusselman Ellenburger Strawn
42-383-41601 STUDLEY DN EAST I 21-30 · DE IV OPERATING, LLC
0.5 mi
Queen 2,221'Grayburg 2,568'San Andres 2,747'Clear Fork 4,638'Spraberry 5,675'Wolfcamp 7,269'Strawn Fusselman Ellenburger
42-383-41603 STUDLEY DN EAST K 21-30 · DE IV OPERATING, LLC
0.5 mi
Queen 2,217'Grayburg 2,573'San Andres 2,747'Clear Fork 4,638'Spraberry 5,674'Wolfcamp 7,261'Strawn Fusselman Ellenburger

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
8,348–23,493 ftPerforated

Casing (3)

SizeSet DepthCement
13.375"794 ft515 sx
9.625"7,447 ft1,200 sx
5.5"23,595 ft3,851 sx

Permit History (2)

Applications (2)

#895355 A DE IV OPERATING, LLC
received 2023-12-11
#895355 A DE IV OPERATING, LLC
received 2023-11-15

Records & Logs

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

W-2/G-1 2024-09-13
W-2/G-1 2024-04-17 log on file
Completion packets + logs ↗ Wellbore filings ↗

Completion packets open directly (post-2011 filings include attached logs). Log images and the UL library can't be deep-linked — clicking copies the API for you to paste.

Lat 31.398663
Lon -101.480685

Well Details

Well Number
4405H
Max Depth
10,605 ft
Drill Type
Horizontal
County
REAGAN
District
7
Completed
2024-07-17

Operator

Location
FORT WORTH
P-5 Status
Active (filed 2025-12-16)
Cum Oil (all leases)
16,050,090 bbl
Cum Gas (all leases)
4,126 mcf
Activities
OPRS/G, OPRS/O
Total Permits
351