WELL · 42-461-40747 · DISTRICT 7

North Brook 38-35 #4D

Y

Upton County · Spraberry (Trend Area) R 40 Exc field · Injection  · Vertical

North Brook 38-35 #4D (API 42-461-40747) is a well in Upton County operated by Pioneer Natural Res. USA Inc., completed June 27, 2023 and listed as injection on the RRC schedule.

The RRC has issued one drilling permit, issued December 14, 2017, permitted to 5,550 ft.

Completion filings report 9 formation tops, including Yates, Grayburg, San Andres, Devonian.

No lease production has been reported under this well’s leases.

It holds an active disposal or injection permit, with 4.67M barrels injected in the 12 months reported through January 2026; TexNet located 0 M2+ earthquakes within 10 km over the last two years.

Operator of record

Pioneer Natural Res. USA Inc.

Spring, TX · P-5 Y, filed May 4, 2026 · 15,619 permits on file · (972) 598-8150

SOURCE · RRC EWA WELLBORE SCHEDULE

What each RRC source says

Wellbore schedulePioneer Natural Res. USA Inc.
Production reportsnone
Latest permitPioneer Natural Res. USA, Inc.Dec 14, 2017
5,550
total depth, ft
1
permits on file
Dec 14, 2017
last permit issued
Jun 27, 2023
completed
0
cumulative oil, bbl
0
cumulative gas, mcf

PRODUCTION FROM PDQ LEASE REPORTS · May 2018 THROUGH Jul 2026

Regulatory status · RRC wellbore file

Schedule
ON SCHEDULE
Completed
Jun 27, 2023
Shut in
—
Plugged
—

Operator's P-5 on the schedule: Active

Surface location

31.591421, -101.840389

OpenStreetMap → ·  Google Maps →

Permit surface location from the RRC GIS record, in Upton County.

Lease production

PDQ LEASE REPORTS · REPORTED THROUGH APR 2026

Texas reports oil by lease, not by well. These are the lease this well is completed on; this well is the only one on it.Why →

LeaseFieldReporting operatorWellsOil, bblGas, mcfReported
North Brook 38-35 O-9-20029Spraberry (Trend Area) R 40 ExcPioneer Natural Res. USA, Inc.100May 2018 – Jul 2026

No volumes reported on these leases in the last three years.

Permits

PermitTypeOperatorReceivedIssuedSpudDepth
834005-99DrillPioneer Natural Res. USA, Inc.Dec 7, 2017Dec 14, 2017Apr 23, 20185,550

Completions

CompletedLeaseFieldOperatorStatusDepth
—— O-9-20029————

Formation tops

As filed on W-2/G-1. Subsea from 2,752 ft elevation.Download CSV →

FormationMD ftSubsea
Yates2,455297
Grayburg4,060-1,308
San AndresSAN ANDRES - SALTWATER FLOW4,133-1,381
Devonian——
Ellenburger——
Fusselman——
Spraberry——
Strawn——
Wolfcamp——

Perforations

Perforated and open-hole intervals.

FromToType
4,2364,276Perforated

Casing

Strings as reported, shallowest first.

Casing inSet atHole inCement
10.751,36513.5676 S
75,5409.875960 S

Completion filings

W-2 and G-1 reports on record in the RRC wellbore file, newest first. The suffix identifies the wellbore or completion event. About these reports →

SuffixFiledW-2 / G-1 dateLogs referenced
00Jan 23, 2024Jul 6, 2023—
00Nov 7, 2018Oct 16, 2018Yes

The source documents

Petrora holds the structured record. The scanned filings live at the RRC; these links open its search already filled in for this API.

Log images are in archives with no per-well link: the RRC's Neubus archive (2004 onward) and the University Lands library. then paste it into their search.

Nearby wells and their tops

NEAREST 8 LOCATED WELLS WITH TOPS · WITHIN 16 KM

Draw a cross-section

This well's tops beside its 5 nearest neighbours, subsea-aligned so they line up regardless of surface terrain.

Open the cross-section →

North Pembrook Spraberry Unit42-461-41168

0.7 KM · Pioneer Natural Res. USA, Inc. · Section with this well →

Yates2,482285
Grayburg4,084-1,317
San Andres4,207-1,440
Spraberry7,185-4,418
Devonian—
Wolfcamp—
Strawn—
Fusselman—

9 TOPS · FIRST 8

North Pembrook Spraberry Unit42-461-41167

0.7 KM · Pioneer Natural Res. USA, Inc. · Section with this well →

Yates2,470297
Grayburg4,080-1,313
San Andres4,204-1,437
Spraberry7,187-4,420
Ellenburger—
Wolfcamp—
Strawn—
Fusselman—

9 TOPS · FIRST 8

North Brook NE34H42-461-43528

1.1 KM · Pioneer Natural Res. USA, Inc. · Section with this well →

Yates2,474293
Grayburg4,080-1,313
San Andres4,205-1,438
Clear Fork6,273-3,506
Spraberry7,195-4,428
Wolfcamp8,784-6,017
Fusselman—
Ellenburger—

10 TOPS · FIRST 8

North Brook NE34G42-461-43527

1.1 KM · Pioneer Natural Res. USA, Inc. · Section with this well →

Yates2,474293
Grayburg4,087-1,320
San Andres4,194-1,427
Clear Fork6,285-3,518
Spraberry7,195-4,428
Wolfcamp8,789-6,022
Fusselman—
Ellenburger—

10 TOPS · FIRST 8

North Brook NE3442-461-41073

1.1 KM · Pioneer Natural Res. USA, Inc. · Section with this well →

Yates2,416353
Grayburg3,790-1,021
San Andres4,131-1,362
Spraberry6,984-4,215
Wolfcamp8,644-5,875
Ellenburger—
Devonian—
Fusselman—

9 TOPS · FIRST 8

North Brook NE3442-461-41072

1.1 KM · Pioneer Natural Res. USA, Inc. · Section with this well →

Yates2,481288
Grayburg4,085-1,316
San Andres4,212-1,443
Spraberry7,186-4,417
Wolfcamp8,799-6,030
Devonian—
Ellenburger—
Fusselman—

9 TOPS · FIRST 8

North Brook NE3442-461-41071

1.1 KM · Pioneer Natural Res. USA, Inc. · Section with this well →

Yates2,483286
San Andres4,210-1,441
Grayburg4,258-1,489
Spraberry7,188-4,419
Wolfcamp8,802-6,033
Ellenburger—
Devonian—
Fusselman—

9 TOPS · FIRST 8

North Brook NE3442-461-40769

1.1 KM · Pioneer Natural Res. USA, Inc. · Section with this well →

Yates2,482287
Grayburg4,081-1,312
San Andres4,209-1,440
Spraberry7,183-4,414
Wolfcamp8,791-6,022
Ellenburger—
Fusselman—
Strawn—

9 TOPS · FIRST 8

Beyond the permit record

RRC UIC permits · H-10 reported volumes

Injection

4.67M
bbl, last 12 reported months
18M
bbl, all reported
Jan 2026
reported through
UICKindStatusPermitted bbl/dMax psiZone ft
000116103W-14 DisposalActive25,0002,0004,000–5,600

MONTHLY INJECTED, BBL · H-10 · LAST 24 REPORTED MONTHS

Last 12 months 4,667,653 · prior 12 2,007,117(+133%)

0200K400K600K20252026

TexNet catalog via USGS

Seismicity near this well

0
M2+ events within 10 km, last 2 years
—
largest

A proximity count, not an attribution. How to read it →

About this data

Permits from the RRC OGA049M master and daily daf420 files; wellbore and operator of record from the EWA schedule, weekly; completions, formation tops, casing, and perforations from the dbf900 wellbore file; production from PDQ lease reports, which lag two to three months; injection from UIC permits, H-10 reports, and TexNet daily volumes; earthquakes from the TexNet catalog.

New to these records? How to read a well page · API numbers · completion reports and tops · why production is by lease

Developers: this page as JSON is GET /v1/data/wells/46140747, documented in the API reference.