42-461-40860

PRODUCING Horizontal

BROOK D-31I

UPTON County · District 7 · PIONEER NATURAL RES. USA INC. · SPRABERRY (TREND AREA) R 40 EXC

Permits

1

Max Depth

10,100 ft

First Permit

2018-05-07

Latest Activity

2018-05-07

Lifespan

< 1 yr

Regulatory Status

Schedule

ON SCHEDULE

Completion

2019-02-20

Shut-In

Plugged

P-5 Org Status: Active

Production Summary

Cum Oil

bbl

Cum Gas

mcf

First Production

2019-02

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 (9) Elevation 2,679 ft (KB)

CSV
FormationTop Depth (MD)Subsea (+above / −below SL)
YATES 2,211 ft+468 ft
GRAYBURG 3,838 ft-1,159 ft
SAN ANDRES - SALTWATER FLOW (San Andres)3,932 ft-1,253 ft
SPRABERRY 6,763 ft-4,084 ft
WOLFCAMP 8,373 ft-5,694 ft
DEVONIAN
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
42-461-40859 BROOK D-31H · PIONEER NATURAL RES. USA, INC.
0.0 mi
Yates 2,190'Grayburg 3,829'San Andres 3,927'Spraberry 6,764'Wolfcamp 8,380'Ellenburger Strawn Devonian Fusselman
42-461-40857 BROOK D-31G · PIONEER NATURAL RES. USA, INC.
0.0 mi
Yates 2,203'Grayburg 3,830'San Andres 3,928'Spraberry 6,783'Wolfcamp 8,387'Fusselman Devonian Ellenburger Strawn
42-461-41360 BROOK D-W31D · PIONEER NATURAL RES. USA, INC.
0.0 mi
Yates 2,199'Yates 2,200'Grayburg 3,745'San Andres 3,876'Clear Fork 5,918'Spraberry 6,778'Spraberry 6,779'Dean 8,193'Wolfcamp 8,378'Ellenburger Strawn Fusselman +1 more
42-461-41359 BROOK D-W31C · PIONEER NATURAL RES. USA, INC.
0.0 mi
Yates 2,134'Grayburg 3,431'Grayburg 3,432'San Andres 3,587'Spraberry 6,781'Dean 8,199'Wolfcamp 8,388'Devonian Ellenburger Strawn Fusselman
42-461-41358 BROOK D-W31B · PIONEER NATURAL RES. USA, INC.
0.0 mi
Yates 2,204'Grayburg 3,773'San Andres 3,873'Spraberry 6,779'Wolfcamp 8,388'Strawn Devonian Ellenburger Fusselman
42-461-41356 BROOK D-W31A · PIONEER NATURAL RES. USA, INC.
0.0 mi
Yates 2,200'Yates 2,201'Grayburg 3,160'Grayburg 3,733'San Andres 3,871'San Andres 3,872'Spraberry 6,780'Dean 8,199'Wolfcamp 8,387'Strawn Devonian Fusselman +1 more
42-461-41572 BROOK D-C31B · PIONEER NATURAL RES. USA, INC.
0.2 mi
Yates 2,196'Grayburg 3,784'San Andres 3,900'Spraberry 6,789'Wolfcamp 8,391'Devonian Strawn Ellenburger Fusselman
42-461-41370 BROOK D-C31A · PIONEER NATURAL RES. USA, INC.
0.2 mi
Yates 2,192'Grayburg 3,788'San Andres 3,904'Spraberry 6,785'Dean 8,200'Wolfcamp 8,383'Devonian Strawn Ellenburger Fusselman

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
9,608–17,080 ftPerforated

Casing (3)

SizeSet DepthCement
13.375"1,206 ft1,225 sx
9.625"6,080 ft890 sx
5.5"17,110 ft1,020 sx

Permit History (1)

Applications (1)

#839585 A PIONEER NATURAL RES. USA, INC.
received 2018-05-03

Records & Logs

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

W-2/G-1 2019-04-23 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 31.407852
Lon -101.801125

Well Details

Well Number
9H
Max Depth
10,100 ft
Drill Type
Horizontal
County
UPTON
District
7
Completed
2019-02-20

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