TEXAS · WELLS · REAGAN COUNTY · ROCKER B "4" LEASE · API 42-383-35690 · DISTRICT 6E

Rocker B 4 #125

Shut in

Reagan County · Spraberry (Trend Area) field · Shut In  · Vertical

Rocker B 4 #125 (API 42-383-35690) is a well in Reagan County operated by Pioneer Natural Res. USA Inc., completed September 6, 2016 and listed as shut in on the RRC schedule, shut in September 1, 2016.

The RRC has issued one drilling permit, issued January 9, 2006, permitted to 7,025 ft.

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

Completion filings report 4 formation tops, including Spraberry, Jo Mill, Dean, Wolfcamp.

Its lease has reported 39.9K barrels of oil and 281K mcf of gas since October 2000, last reporting in July 2026. The lease carries 8 wells, so these are lease totals, not this well alone.

Operator of record

Pioneer Natural Res. USA Inc.

Permitted by Gruy Petroleum Management 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
15,628
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 Nov 2016
Latest permitGruy Petroleum Management Co.Jan 9, 2006

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

7,025
total depth, ft
1
permits on file
Jan 9, 2006
last permit issued
Sep 6, 2016
completed
39.9K
cumulative oil, bbl
281K
cumulative gas, mcf

PRODUCTION FROM PDQ LEASE REPORTS · Oct 2000 THROUGH Jul 2026

Regulatory status · RRC wellbore file

Schedule
ON SCHEDULE
Completed
Sep 6, 2016
Shut in
Sep 1, 2016
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; they carry 8 wells in total, so volumes are shared.Why →

LeaseFieldReporting operatorWellsOil, bblGas, mcfReported
Rocker B "4" O-9-15028Spraberry (Trend Area)Pioneer Natural Res. USA, Inc.839.9K281KOct 2000 – Jul 2026

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. 1Nadel and Gussman Permian,l.l.c.Oct 2000 → Oct 2004
  2. 2Gruy Petroleum Management Co.Nov 2004 → Apr 2006
  3. 3Cimarex Energy Co. of ColoradoMay 2006 → Dec 2007
  4. 4Pioneer Natural Res. USA, Inc.Jan 2008 → Nov 2016

Permits

PermitTypeOperatorReceivedIssuedSpudDepth
612071-99DrillGruy Petroleum Management Co.Jan 9, 2006Jan 9, 2006Jul 19, 20068,200

Completions

CompletedLeaseFieldOperatorStatusDepth
Sep 6, 2016Rocker B 4 O-9-15028Spraberry (Trend Area)Pioneer Natural Res. USA Inc.Shut In · shut in Sep 1, 20167,025

Formation tops

As filed on W-2/G-1. Subsea from 2,476 ft elevation.Download CSV →

FormationMD ftSubsea
SpraberryUPPER SPRABERRY5,236-2,760
SpraberryMIDDLE SPRABERRY5,774-3,298
Jo Mill6,306-3,830
Dean6,568-4,092
Wolfcamp6,818-4,342

Perforations

Perforated and open-hole intervals.

FromToType
5,3805,420Perforated
5,7905,830Perforated
6,1506,190Perforated
6,6806,720Perforated

Casing

Strings as reported, shallowest first.

Casing inSet atHole inCement
8.62559612.25370 S
4.54,4967.8751,150 S
4.57,0257.8752,180 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
00Dec 9, 2016Nov 7, 2016—
00Feb 6, 2007Sep 19, 2006Yes
00Sep 22, 2006——

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/38335690, documented in the API reference.