TEXAS · WELLS · REAGAN COUNTY · BAST 33-40 LEASE · API 42-383-39368 · DISTRICT 6E

Bast 33-40 #4412H

On schedule

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

Bast 33-40 #4412H (API 42-383-39368) is a horizontal well in Reagan County operated by Pioneer Natural Res. USA Inc., completed July 15, 2015 and listed as producing on the RRC schedule.

The RRC has issued one drilling permit, issued April 14, 2015, permitted to 9,517 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 9 formation tops, including San Andres, Spraberry, Wolfcamp, Clear Fork.

Its lease has reported 434K barrels of oil and 1.72M mcf of gas since July 2015, 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, LLCApr 14, 2015

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

9,517
total depth, ft
1
permits on file
Apr 14, 2015
last permit issued
Jul 15, 2015
completed
434K
cumulative oil, bbl
1.72M
cumulative gas, mcf

PRODUCTION FROM PDQ LEASE REPORTS · JUL 2015 THROUGH APR 2026

Regulatory status · RRC wellbore file

Schedule
ON SCHEDULE
Completed
Jul 15, 2015
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.

Wells nearby

Every well with a location on file around this well, in any state, nearest first.

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Texas locations come from drilling permits, so most older Texas wells have none and are not listed.

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
Bast 33-40 O-9-19118Spraberry (Trend Area) R 40 ExcPioneer Natural Res. USA, Inc.1434K1.72MJul 2015 – Apr 2026

Gas, mcf lease total

Last 12 months 180,819 · prior 12 117,178(+54%)

010K20K30K202420252026

Oil, barrels lease total

Last 12 months 4,603 · prior 12 7,749(-41%)

05001K202420252026

Wells named Bast 33-40

Pioneer Natural Res. USA Inc.'s other wells filed under this lease name in Reagan County, newest permit first. The RRC gives a gas well its own lease number, so the name is what joins the wells of a unit.

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Chain of custody

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

  1. 1Parsley Energy Operations, LLCJul 2015 → Jan 2021
  2. 2Pioneer Natural Res. USA, Inc.Feb 2021 → Apr 2026

Permits

PermitTypeOperatorReceivedIssuedSpudDepth
805420-99DrillParsley Energy Operations, LLCApr 9, 2015Apr 14, 2015Apr 23, 20159,100

Completions

CompletedLeaseFieldOperatorStatusDepth
Jul 15, 2015Bast 33-40 O-9-19118Spraberry (Trend Area) R 40 ExcPioneer Natural Res. USA Inc.Producing9,517

Formation tops

As filed on W-2/G-1. Subsea from 2,665 ft elevation.Download CSV →

FormationMD ftSubsea
San AndresSAN ANDRES - SALTWATER FLOW, POS4,500-1,835
Spraberry7,000-4,335
Wolfcamp8,354-5,689
Clear ForkCLEARFORK——
Ellenburger——
Fusselman——
Grayburg——
Queen——
Strawn——

Perforations

Perforated and open-hole intervals.

FromToType
9,57019,081Perforated
14,19019,042Perforated

Casing

Strings as reported, shallowest first.

Casing inSet atHole inCement
13.37550717.5560 S
9.6258,43712.251,095 S
5.519,1568.53,670 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
00Mar 24, 2016Feb 7, 2016—
00Dec 14, 2015Sep 23, 2015Yes

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 filed since 2004 open from the RRC's log search for this well; none are loaded here for it. The University Lands library has no per-well link: then paste it into its search.

Find logs withinmiles of this well:List →Map →

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/38339368, documented in the API reference.