TEXAS · WELLS · MIDLAND COUNTY · LOCKLAR LEASE · API 42-329-31635 · DISTRICT 7B

Locklar #1

Plugged

Midland County · Spraberry (Trend Area) field  · Vertical

Locklar #1 (API 42-329-31635) is a plugged well in Midland County, plugged June 13, 2022, last operated by Pioneer Natural Res. USA Inc..

The RRC has issued one drilling permit, issued November 15, 1985, permitted to 9,550 ft.

It was permitted by Parker & Parsley Petroleum CO. and has since transferred to Pioneer Natural Res. USA Inc. on the wellbore schedule.

Completion filings report 5 formation tops, including T. Upper Spraberry, Spraberry, T. Lower Spraberry, T. Dean.

Its lease has reported 30.7K barrels of oil and 245K mcf of gas since January 1993, with no volume in the three years through April 2026.

Operator of record

Pioneer Natural Res. USA Inc.

Permitted by Parker & Parsley Petroleum Co.; 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 Sep 2019
Latest permitParker & Parsley Petroleum Co.Nov 15, 1985

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

9,550
total depth, ft
1
permits on file
Nov 15, 1985
last permit issued
Sep 26, 2019
completed
30.7K
cumulative oil, bbl
245K
cumulative gas, mcf

PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Sep 2019

Regulatory status · RRC wellbore file

Schedule
OFF SCHEDULE
Completed
Sep 26, 2019
Shut in
—
Plugged
Jun 13, 2022

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
Locklar O-10-30347Spraberry (Trend Area)Pioneer Natural Res. USA, Inc.130.7K245KJan 1993 – Sep 2019

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

Chain of custody

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

  1. 1Parker & Parsley Development Co.Jan 1993 → Feb 1995
  2. 2Parker & Parsley Development L.PMar 1995 → Aug 1997
  3. 3Pioneer Natural Res. USA, Inc.Sep 1997 → Jul 2019

Permits

PermitTypeOperatorReceivedIssuedSpudDepth
290007-99DrillParker & Parsley Petroleum Co.Dec 17, 1985Nov 15, 1985—9,550

Completions

CompletedLeaseFieldOperatorStatusDepth
Sep 26, 2019Locklar O-10-30347Spraberry (Trend Area)Pioneer Natural Res. USA Inc.Plugged—

Formation tops

As filed on W-2/G-1. Subsea from 2,784 ft elevation.Download CSV →

FormationMD ftSubsea
T. Upper Spraberry7,782-4,998
SpraberryUPPER SPRABERRY7,782-4,998
SpraberryLOWER SPRABERRY8,518-5,734
T. Lower Spraberry8,518-5,734
T. Dean9,146-6,362
DeanTOP DEAN9,146-6,362
DeanBASE DEAN9,344-6,560

Perforations

Perforated and open-hole intervals.

FromToType
7,8028,000Perforated
8,4788,735Perforated
9,1669,401Perforated

Casing

Strings as reported, shallowest first.

Casing inSet atHole inCement
12.7528717.5300 S
8.6254,38811250 S
4.59,5507.875850 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
00Nov 4, 2019Oct 8, 2019—
00Jan 10, 1986Dec 30, 1985Yes
00Jan 8, 1986——

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.

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/32931635, documented in the API reference.