WELL · 42-383-32695 · DISTRICT 7

Rocker B -L- #4

Plugged

Reagan County · Spraberry (Trend Area) field  · Vertical

Rocker B -L- #4 (API 42-383-32695) is a plugged well in Reagan County, plugged January 10, 2014, last operated by Discovery Natural Resources LLC.

The RRC has issued one drilling permit, issued September 15, 1983, permitted to 7,300 ft.

It was permitted by Cox, John L. and has since transferred to Discovery Natural Resources LLC on the wellbore schedule.

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

Its lease has reported 67.8K barrels of oil and 1.19M mcf of gas since January 1993, last reporting in January 2019. The lease carries 7 wells, so these are lease totals, not this well alone.

Operator of record

Discovery Natural Resources LLC

Permitted by Cox, John L.; the EWA schedule now lists a different operator.

Based in
Denver, CO
P-5 status
Active (A)
P-5 last filed
Jan 12, 2026
Permits on file
451
Phone
(303) 893-5073

SOURCE · RRC EWA WELLBORE SCHEDULE

What each RRC source says

Wellbore scheduleDiscovery Natural Resources LLC
Production reportsJM Cox Resources, L.P.through Aug 2018
Latest permitCox, John L.Sep 15, 1983

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

7,300
total depth, ft
1
permits on file
Sep 15, 1983
last permit issued
Feb 2, 1984
completed
67.8K
cumulative oil, bbl
1.19M
cumulative gas, mcf

PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Jan 2019

Regulatory status · RRC wellbore file

Schedule
OFF SCHEDULE
Completed
Feb 2, 1984
Shut in
—
Plugged
Jan 10, 2014

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 7 wells in total, so volumes are shared.Why →

LeaseFieldReporting operatorWellsOil, bblGas, mcfReported
Rocker B -L- O-9-4861Spraberry (Trend Area)Discovery Natural Resources LLC767.8K1.19MJan 1993 – Jan 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. 1Graham Royalty, Ltd.Jan 1993 → Oct 1993
  2. 2Cox, John L.Nov 1993 → Sep 2003
  3. 3JM Cox Resources, L.P.Oct 2003 → Aug 2018

Permits

PermitTypeOperatorReceivedIssuedSpudDepth
212410-99DrillCox, John L.Sep 13, 1983Sep 15, 1983—7,300

Completions

CompletedLeaseFieldOperatorStatusDepth
—— O-9-4861————

Formation tops

As filed on W-2/G-1. Subsea from 2,599 ft elevation.Download CSV →

FormationMD ftSubsea
Cretaceous5002,099
SpraberryUPPER SPRABERRY5,580-2,981
SpraberryLOWER SPRABERRY6,190-3,591
Dean7,020-4,421

Perforations

Perforated and open-hole intervals.

FromToType
5,5865,604Perforated
6,1986,589Perforated
7,0267,212Perforated

Casing

Strings as reported, shallowest first.

Casing inSet atHole inCement
8.62553412.25450 S
4.57,2407.8751,000 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
00Mar 6, 1984Feb 8, 1984—
00Feb 25, 1984Feb 8, 1984—

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/38332695, documented in the API reference.