WELL · 42-383-34000 · DISTRICT 7

Nunn J. F. -A- #21

Plugged

Reagan County · Spraberry (Trend Area) field  · Vertical

Nunn J. F. -A- #21 (API 42-383-34000) is a plugged well in Reagan County, plugged March 15, 2016, last operated by Pioneer Natural Res. USA Inc..

The RRC has issued one drilling permit, issued March 28, 1990, permitted to 8,400 ft.

It was permitted by Cox, John L. and has since transferred to Pioneer Natural Res. USA Inc. on the wellbore schedule.

Completion filings report 3 formation tops, including Cretaceous, Spraberry, Dean.

Its 2 leases have reported 466K barrels of oil and 1.81M mcf of gas since January 1993, last reporting in June 2026. The leases carry 28 wells, so these are lease totals, not this well alone.

Operator of record

Pioneer Natural Res. USA Inc.

Permitted by Cox, John L.; 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
15,628
Phone
(972) 444-4001

SOURCE · RRC EWA WELLBORE SCHEDULE

What each RRC source says

Wellbore schedulePioneer Natural Res. USA Inc.
Production reportsDE3 Operating LLCthrough Dec 2020
Latest permitCox, John L.Mar 28, 1990

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

8,400
total depth, ft
1
permits on file
Mar 28, 1990
last permit issued
Jul 2, 1990
completed
466K
cumulative oil, bbl
1.81M
cumulative gas, mcf

PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Jun 2026

Regulatory status · RRC wellbore file

Schedule
OFF SCHEDULE
Completed
Jul 2, 1990
Shut in
—
Plugged
Mar 15, 2016

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 2 leases this well is completed on; they carry 28 wells in total, so volumes are shared.Why →

LeaseFieldReporting operatorWellsOil, bblGas, mcfReported
Nunn, J. F. -A- O-9-13968Spraberry (Trend Area)Pioneer Natural Res. USA, Inc.16412K1.54MNov 1995 – Jun 2026
Nunn, J. F. "A" O-9-4569Spraberry (Trend Area)Cox, John L.1254.1K267KJan 1993 – Mar 1996

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. 1Cox, John L.Jan 1993 → Sep 2003
  2. 2JM Cox Resources, L.P.Oct 2003 → Aug 2018
  3. 3DE3 Operating LLCSep 2018 → May 2020

Permits

PermitTypeOperatorReceivedIssuedSpudDepth
371536-99DrillCox, John L.Mar 28, 1990Mar 28, 1990—8,400

Completions

CompletedLeaseFieldOperatorStatusDepth
Jul 2, 1990Nunn J. F. -A- O-9-13968Spraberry (Trend Area)Pioneer Natural Res. USA Inc.Plugged—
Jul 2, 1990Nunn J. F. A O-9-4569Spraberry (Trend Area)Cox John L.Plugged—

Formation tops

As filed on W-2/G-1. Subsea from 2,662 ft elevation.Download CSV →

FormationMD ftSubsea
Cretaceous4002,262
SpraberryUPPER SPRABERRY6,572-3,910
SpraberryLOWER SPRABERRY7,195-4,533
Dean7,976-5,314

Perforations

Perforated and open-hole intervals.

FromToType
6,6006,626Perforated
7,2087,570Perforated
8,0008,172Perforated

Casing

Strings as reported, shallowest first.

Casing inSet atHole inCement
8.62550011350 S
4.58,2607.8751,500 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
00Feb 26, 1996Jul 11, 1990Yes
00Aug 8, 1990Jul 11, 1990Yes
00Jul 20, 1990——

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.

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/38334000, documented in the API reference.