42-461-43191

PRODUCING Horizontal

BROOK UNIT O-1E

UPTON County · District 9 · PIONEER NATURAL RES. USA INC. · SPRABERRY (TREND AREA)

Permits

1

Max Depth

10,922 ft

First Permit

2025-06-23

Latest Activity

2025-06-23

Lifespan

< 1 yr

Regulatory Status

Schedule

ON SCHEDULE

Completion

2026-02-20

Shut-In

Plugged

P-5 Org Status: Active

Production Summary

Cum Oil

bbl

Cum Gas

mcf

First Production

2025-10

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 (15) Elevation 2,736 ft (KB)

CSV
FormationTop Depth (MD)Subsea (+above / −below SL)
YATES 2,380 ft+356 ft
YATES 2,383 ft+353 ft
GRAYBURG 3,913 ft-1,177 ft
GRAYBURG 3,918 ft-1,182 ft
SAN ANDRES - SALTWATER FLOW (San Andres)4,122 ft-1,386 ft
SAN ANDRES - SALTWATER FLOW (San Andres)4,127 ft-1,391 ft
CLEARFORK (Clear Fork)6,163 ft-3,427 ft
CLEARFORK (Clear Fork)6,225 ft-3,489 ft
SPRABERRY 7,121 ft-4,385 ft
SPRABERRY 7,129 ft-4,393 ft
DEVONIAN
ELLENBURGER
FUSSELMAN
STRAWN
WOLFCAMP

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
42-461-43187 BROOK O-1F · PIONEER NATURAL RES. USA, INC.
0.0 mi
Yates 2,394'Grayburg 3,919'San Andres 4,110'Clear Fork 6,259'Spraberry 7,122'Wolfcamp 8,701'Devonian Strawn Fusselman Ellenburger
42-461-43188 BROOK O-1G · PIONEER NATURAL RES. USA, INC.
0.0 mi
Yates 2,270'Grayburg 3,828'San Andres 4,021'Clear Fork 6,063'Spraberry 6,805'Wolfcamp 8,446'Fusselman Ellenburger Devonian Strawn
42-461-43192 BROOK UNIT O-1H · PIONEER NATURAL RES. USA, INC.
0.0 mi
Yates 2,392'Grayburg 3,910'San Andres 4,115'Clear Fork 6,201'Spraberry 7,091'Fusselman Ellenburger Devonian Wolfcamp Strawn
42-461-43190 BROOK UNIT O-1D · PIONEER NATURAL RES. USA, INC.
0.3 mi
Yates 2,377'Grayburg 3,914'San Andres 4,130'Clear Fork 6,227'Spraberry 7,124'Strawn Ellenburger Devonian Wolfcamp Fusselman
42-461-43189 BROOK UNIT O-1C · PIONEER NATURAL RES. USA, INC.
0.3 mi
Yates 2,383'Grayburg 3,913'San Andres 4,127'Clear Fork 6,225'Spraberry 7,121'Ellenburger Wolfcamp Strawn Devonian Fusselman
42-461-43186 BROOK O-1B · PIONEER NATURAL RES. USA, INC.
0.3 mi
Yates 2,385'Grayburg 3,912'San Andres 4,119'Clear Fork 6,228'Spraberry 7,133'Wolfcamp 8,716'Devonian Fusselman Ellenburger Strawn
42-461-43185 BROOK O-1A · PIONEER NATURAL RES. USA, INC.
0.3 mi
Yates 2,385'Grayburg 3,913'San Andres 4,121'Clear Fork 6,241'Spraberry 7,145'Wolfcamp 8,734'Fusselman Ellenburger Devonian Strawn
42-461-40760 BROOK O-2Z · PIONEER NATURAL RES. USA, INC.
1.2 mi
Yates 2,435'Grayburg 4,058'San Andres 4,171'Spraberry 7,170'Dean 8,596'Wolfcamp 8,788'Strawn Fusselman Devonian 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
8,559–26,767 ftPerforated

Casing (3)

SizeSet DepthCement
13.375"1,200 ft1,320 sx
9.625"5,495 ft1,546 sx
5.5"26,792 ft1,177 sx

Permit History (1)

Applications (1)

#908367 A PIONEER NATURAL RES. USA, INC.
received 2025-05-30

Records & Logs

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

W-2/G-1 2026-04-14
W-2/G-1 2026-02-19 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 31.495628
Lon -101.839281

Well Details

Well Number
5H
Max Depth
10,922 ft
Drill Type
Horizontal
County
UPTON
District
9
Completed
2026-02-20

Operator

Location
Y SPRING
P-5 Status
Active (filed 2025-08-01)
Cum Oil (all leases)
1,771,882,421 bbl
Cum Gas (all leases)
1,763,727,021 mcf
Activities
CSGD/G, CSGD/P, G/PUR, GTHS/G, GTHS/O, OPRS/G, OPRS/O
Total Permits
15,399