TEXAS · WELLS · REAGAN COUNTY · KATHRYN 43-42 LEASE · API 42-383-39585 · DISTRICT 6E

Kathryn 43-42 #4401H

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Reagan County · Spraberry (Trend Area) R 40 Exc field · Producing  · Horizontal

Kathryn 43-42 #4401H (API 42-383-39585) is a horizontal well in Reagan County operated by Pioneer Natural Res. USA Inc., completed June 21, 2016 and listed as producing on the RRC schedule.

The RRC has issued one drilling permit (amended once), issued March 15, 2016, permitted to 9,155 ft.

It was permitted by Parsley Energy Operations, LLC and has since transferred to Pioneer Natural Res. USA Inc. on the wellbore schedule.

Completion filings report 8 formation tops, including San Andres, Clear Fork, Spraberry, Ellenburger.

Its lease has reported 536K barrels of oil and 1.46M mcf of gas since June 2016, last reporting volume in April 2026.

Operator of record

Pioneer Natural Res. USA Inc.

Permitted by Parsley Energy Operations, LLC; the EWA schedule now lists a different operator.

Based in
Spring, TX
P-5 status
Active (A)
P-5 last filed
Jul 8, 2026
Permits on file
15,633
Phone
(972) 444-4001

SOURCE · RRC EWA WELLBORE SCHEDULE

What each RRC source says

Wellbore schedulePioneer Natural Res. USA Inc.
Production reportsPioneer Natural Res. USA, Inc.through Apr 2026
Latest permitParsley Energy Operations, LLCMar 15, 2016

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

9,155
total depth, ft
2
permits on file
Mar 15, 2016
last permit issued
Jun 21, 2016
completed
536K
cumulative oil, bbl
1.46M
cumulative gas, mcf

PRODUCTION FROM PDQ LEASE REPORTS · Jun 2016 THROUGH Apr 2026

Regulatory status · RRC wellbore file

Schedule
ON SCHEDULE
Completed
Jun 21, 2016
Shut in
—
Plugged
—

Operator's P-5 on the schedule: Active (A)

Surface location

No coordinates on the permit record yet. The RRC's GIS record usually lands within days of issuance; historical master-file permits never carry one.

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
Kathryn 43-42 O-9-19414Spraberry (Trend Area) R 40 ExcPioneer Natural Res. USA, Inc.1536K1.46MJun 2016 – Apr 2026

Gas, mcf lease total

Last 12 months 59,430 · prior 12 123,033(-52%)

05K10K15K202420252026

Oil, barrels lease total

Last 12 months 8,175 · prior 12 17,595(-54%)

01K2K3K202420252026

Chain of custody

Every operator that reported production on this well's lease, in order.

  1. 1Parsley Energy Operations, LLCJun 2016 → Jan 2021
  2. 2Pioneer Natural Res. USA, Inc.Feb 2021 → Apr 2026

Permits

PermitTypeOperatorReceivedIssuedSpudDepth
813898-98DrillParsley Energy Operations, LLCMar 16, 2016Mar 15, 2016Apr 7, 20169,400
813898-99DrillParsley Energy Operations, LLCFeb 16, 2016Mar 15, 2016Apr 6, 20169,400

Completions

CompletedLeaseFieldOperatorStatusDepth
Jun 21, 2016Kathryn 43-42 O-9-19414Spraberry (Trend Area) R 40 ExcPioneer Natural Res. USA Inc.Producing9,155

Formation tops

As filed on W-2/G-1. Subsea from 2,664 ft elevation.Download CSV →

FormationMD ftSubsea
San AndresSAN ANDRES - SALTWATER FLOW, POS4,174-1,510
Clear ForkCLEARFORK5,950-3,286
Spraberry7,716-5,052
Ellenburger——
Fusselman——
Grayburg——
Queen——
Strawn——

Perforations

Perforated and open-hole intervals.

FromToType
9,48619,615Perforated

Casing

Strings as reported, shallowest first.

Casing inSet atHole inCement
13.37544717.5495 S
9.6258,39512.25760 S
5.519,7238.753,015 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. The record date is the RRC's own date on the record, not the day the report was filed: 462,034 of the state's filings carry 1984-01-12. About these reports →

SuffixRRC record dateW-2 / G-1 dateLogs referenced
00Jan 27, 2017Aug 31, 2016Yes

Well logs

1 log loaded from the RRC's log index, the latest received Jun 10, 2019. Gamma ray. These are the logs loaded into Petrora from the Railroad Commission's inventories, not necessarily every log run on the well. The RRC holds the files; each opens from its log search for the well. The kind is the RRC's description of the log; the interval is the one filed for it.

Open the RRC's log search for this well ↗
Logas describedFiles Intervalft, as filedDatereceivedSizeMB
Gamma RaySpans San Andres, Clear Fork, SpraberryTIFF100 to 9,208Jun 10, 201919.2

"Spans" is by this well's own filed formation tops: a formation runs from its top to the next deeper top filed, and the deepest runs to the bottom of the log. Depths are measured along the wellbore, so on a horizontal the lateral counts in the formation it was landed in.

Find logs withinmiles of this well:List →Map →

Search the well logs loaded into Petrora →

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.

The logs loaded for this well are under Well logs, with the RRC's log search for it. The University Lands library has no per-well link: then paste it into its search.

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/38339585, documented in the API reference.