WELL · 42-329-44540 · DISTRICT 8

Lester 1 SWD #1

WaterY

Midland County · Spraberry (Trend Area) field · Injection · Vertical

Lester 1 Swd #1 (API 42-329-44540) is a well in Midland County operated by Pioneer Natural Res. USA Inc., completed August 9, 2021 and listed as injection on the RRC schedule.

The RRC has issued one drilling permit, issued December 1, 2020, permitted to 5,400 ft.

It was permitted by Park Hill Disposal LLC and has since transferred to Pioneer Natural Res. USA Inc. on the wellbore schedule.

Completion filings report 10 formation tops, including Santa Rosa, Rustler, Yates, Seven Rivers.

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

It holds an active disposal or injection permit, with 3.35M barrels injected in the 12 months reported through January 2026; TexNet located 3 M2+ earthquakes within 10 km over the last two years.

Operator of record

Pioneer Natural Res. USA Inc.

Permitted by Park Hill Disposal LLC; the EWA schedule now lists a different operator.

Spring, TX · P-5 Y, filed May 4, 2026 · 15,618 permits on file · (972) 598-8150

SOURCE · RRC EWA WELLBORE SCHEDULE

What each RRC source says

Wellbore schedule	Pioneer Natural Res. USA Inc.
Production reports	none
Latest permit	Park Hill Disposal LLCDec 1, 2020

The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.

5,400: total depth, ft
1: permits on file
Dec 1, 2020: last permit issued
Aug 9, 2021: completed
0: cumulative oil, bbl
0: cumulative gas, mcf

PRODUCTION FROM PDQ LEASE REPORTS · Mar 2021 THROUGH Jul 2026

Regulatory status · RRC wellbore file

Schedule: ON SCHEDULE
Completed: Aug 9, 2021
Shut in: —
Plugged: —

Operator's P-5 on the schedule: Active

Surface location

31.888102, -101.912811

OpenStreetMap → · Google Maps →

Permit surface location from the RRC GIS record, in Midland 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 →

Lease	Field	Reporting operator	Wells	Oil, bbl	Gas, mcf	Reported
Lester 1 SWD O-10-55598	Spraberry (Trend Area)	Pioneer Natural Res. USA, Inc.	1	0	0	Mar 2021 – Jul 2026

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

Permits

Permit	Type	Operator	Received	Issued	Spud	Depth
866220-99	Drill	Park Hill Disposal LLC	Nov 25, 2020	Dec 1, 2020	Feb 3, 2021	5,400

Completions

Completed	Lease	Field	Operator	Status	Depth
—	— O-10-55598	—	—	—	—

Formation tops

As filed on W-2/G-1. Subsea from 2,672 ft elevation.Download CSV →

Formation	MD ft	Subsea
Santa Rosa	1,000	1,672
Rustler	1,637	1,035
Yates	2,522	150
Seven Rivers	2,771	-99
Queen	3,456	-784
Grayburg	4,053	-1,381
San AndresSAN ANDRES - HIGH FLOWS, H2S, CO	4,240	-1,568
Clear ForkCLEARFORK	—	—
Glorieta	—	—
Spraberry	—	—

Perforations

Perforated and open-hole intervals.

From	To	Type
4,300	5,320	Perforated

Casing

Strings as reported, shallowest first.

Casing in	Set at	Hole in	Cement
13.375	400	17.5	410 S
9.625	5,420	12.25	1,110 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 →

Suffix	Filed	W-2 / G-1 date	Logs referenced
00	Aug 12, 2021	Aug 12, 2021	—
00	Apr 12, 2021	Apr 7, 2021	Yes

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.

Wellbore filings for 42-329-44540 → W-2, G-1, plugging reports, as PDFs
Completion packets for 42-329-44540 → scanned completion filings

Log images are in archives with no per-well link: the RRC's Neubus archive (2004 onward). 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 →

Winkleman-Donovan 9A42-329-47841

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

Santa Rosa	979	1,709
Rustler	1,549	1,139
Yates	2,515	173
Seven Rivers	2,843	-155
Queen	3,560	-872
Grayburg	4,003	-1,315
San Andres	4,361	-1,673
Clear Fork	6,432	-3,744

10 TOPS · FIRST 8

Winkleman-Donovan 9B42-329-47840

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

Santa Rosa	979	1,709
Rustler	1,544	1,144
Yates	2,517	171
Seven Rivers	2,841	-153
Queen	3,559	-871
Grayburg	4,003	-1,315
San Andres	4,350	-1,662
Clear Fork	6,425	-3,737

10 TOPS · FIRST 8

Horton '40'42-329-42741

1.5 KM · Mid-States Operating Company · Section with this well →

Santa Rosa	1,000	1,697
Yates	2,496	201
Seven Rivers	2,828	-131
Queen	3,585	-888
Grayburg	4,185	-1,488
San Andres	4,276	-1,579
Spraberry	—
Clear Fork	—

10 TOPS · FIRST 8

Winkleman-Donovan 9C42-329-47839

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

Santa Rosa	979	1,709
Rustler	1,561	1,127
Yates	2,508	180
Seven Rivers	2,844	-156
Queen	3,562	-874
Grayburg	3,998	-1,310
San Andres	4,343	-1,655
Clear Fork	6,433	-3,745

10 TOPS · FIRST 8

Winkleman-Donovan 9D42-329-47838

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

Santa Rosa	979	1,709
Rustler	1,536	1,152
Yates	2,509	179
Seven Rivers	2,847	-159
Queen	3,563	-875
Grayburg	4,001	-1,313
San Andres	4,342	-1,654
Clear Fork	6,429	-3,741

10 TOPS · FIRST 8

Winkleman-Donovan 9E42-329-47844

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

Santa Rosa	981	1,709
Rustler	1,576	1,114
Yates	2,528	162
Seven Rivers	2,837	-147
Queen	3,556	-866
Grayburg	4,034	-1,344
San Andres	4,266	-1,576
Clear Fork	6,443	-3,753

10 TOPS · FIRST 8

Winkleman-Donovan 9F42-329-47843

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

Santa Rosa	981	1,709
Rustler	1,565	1,125
Yates	2,525	165
Seven Rivers	2,834	-144
Queen	3,566	-876
Grayburg	4,109	-1,419
San Andres	4,321	-1,631
Clear Fork	6,443	-3,753

10 TOPS · FIRST 8

Winkleman-Donovan 9G42-329-47845

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

Santa Rosa	981	1,709
Rustler	1,508	1,182
Yates	2,525	165
Seven Rivers	2,834	-144
Queen	3,550	-860
Grayburg	4,037	-1,347
San Andres	4,269	-1,579
Clear Fork	6,446	-3,756

10 TOPS · FIRST 8

Beyond the permit record

RRC UIC permits · H-10 reported volumes

Injection

3.35M: bbl, last 12 reported months
13.7M: bbl, all reported
Jan 2026: reported through

UIC	Kind	Status	Permitted bbl/d	Max psi	Zone ft
000124522	W-14 Disposal	Active	25,000	2,089	4,178–5,400

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

Last 12 months 3,353,789 · prior 12 1,647,619(+104%)

TexNet catalog via USGS

Seismicity near this well

3: M2+ events within 10 km, last 2 years
M2.3: 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/32944540, documented in the API reference.