42-383-41603

PRODUCING Horizontal

STUDLEY DN EAST K 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

2024-07-27

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

2024-03

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 (9) Elevation 2,529 ft (GL)

CSV
FormationTop Depth (MD)Subsea (+above / −below SL)
QUEEN 2,217 ft+312 ft
GRAYBURG 2,573 ft-44 ft
SAN ANDRES - SALTWATER FLOW, POS (San Andres)2,747 ft-218 ft
CLEARFORK (Clear Fork)4,638 ft-2,109 ft
SPRABERRY 5,674 ft-3,145 ft
WOLFCAMP 7,261 ft-4,732 ft
ELLENBURGER
FUSSELMAN
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
42-383-41601 STUDLEY DN EAST I 21-30 · DE IV OPERATING, LLC
0.0 mi
Queen 2,221'Grayburg 2,568'San Andres 2,747'Clear Fork 4,638'Spraberry 5,675'Wolfcamp 7,269'Strawn Fusselman Ellenburger
42-383-41604 STUDLEY DN EAST M 21-30 · DE IV OPERATING, LLC
0.0 mi
Queen 2,213'Grayburg 2,567'San Andres 2,744'Clear Fork 4,629'Spraberry 5,675'Wolfcamp 7,258'Fusselman Strawn Ellenburger
42-383-41605 STUDLEY DN EAST MM 21-30 · DE IV OPERATING, LLC
0.0 mi
Queen 2,213'Grayburg 2,569'San Andres 2,748'Clear Fork 4,637'Spraberry 5,671'Wolfcamp 7,249'Fusselman Ellenburger Strawn
42-383-41602 STUDLEY DN EAST II 21-30 · DE IV OPERATING, LLC
0.0 mi
Queen 2,217'Grayburg 2,568'San Andres 2,746'Clear Fork 4,650'Spraberry 5,679'Wolfcamp 7,267'Strawn Fusselman Ellenburger
42-383-41606 STUDLEY DN EAST O 21-30 · DE IV OPERATING, LLC
0.0 mi
Queen 2,212'Grayburg 2,570'San Andres 2,750'Clear Fork 4,635'Spraberry 5,662'Wolfcamp 7,243'Fusselman Ellenburger Strawn
42-383-41600 STUDLEY DN WEST G 21-30 · DE IV OPERATING, LLC
0.5 mi
Grayburg 2,321'Queen 2,680'San Andres 2,862'Clear Fork 4,754'Spraberry 5,769'Wolfcamp 7,356'Ellenburger Fusselman Strawn
42-383-41599 STUDLEY DN WEST EE 21-30 · DE IV OPERATING, LLC
0.5 mi
Queen 2,320'Grayburg 2,686'San Andres 2,867'Clear Fork 4,768'Spraberry 5,771'Wolfcamp 7,357'Ellenburger San Andres Strawn Queen Clear Fork Fusselman +2 more
42-383-41598 STUDLEY DN WEST E 21-30 · DE IV OPERATING, LLC
0.5 mi
Queen 2,320'Grayburg 2,685'San Andres 2,864'Clear Fork 4,777'Spraberry 5,769'Wolfcamp 7,360'Clear Fork Grayburg San Andres Queen Ellenburger Spraberry +2 more

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
8,103–23,260 ftPerforated

Casing (3)

SizeSet DepthCement
13.375"737 ft490 sx
9.625"7,226 ft1,190 sx
5.5"23,354 ft2,714 sx

Permit History (2)

Applications (2)

#895366 A DE IV OPERATING, LLC
received 2023-12-11
#895366 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 2024-09-10
W-2/G-1 2024-05-14 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 31.400489
Lon -101.471904

Well Details

Well Number
4311H
Max Depth
10,605 ft
Drill Type
Horizontal
County
REAGAN
District
7
Completed
2024-07-27

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