WELL · 42-383-33033 · DISTRICT 7

Rocker B -E- #11

N

Reagan County · Spraberry (Trend Area) field  · Vertical

Rocker B -E- #11 (API 42-383-33033) is a well in Reagan County operated by Discovery Natural Resources LLC, completed August 13, 1984.

The RRC has issued one drilling permit, issued April 30, 1984, 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 2 leases have reported 7.55M barrels of oil and 54.9M mcf of gas since January 1993, last reporting in July 2026. The leases carry 141 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 reportsDiscovery Natural Resources LLCthrough Apr 2026
Latest permitCox, John L.Apr 30, 1984

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
Apr 30, 1984
last permit issued
Aug 13, 1984
completed
7.55M
cumulative oil, bbl
54.9M
cumulative gas, mcf

PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Jul 2026

Regulatory status · RRC wellbore file

Schedule
OFF SCHEDULE
Completed
Aug 13, 1984
Shut in
—
Plugged
—

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

LeaseFieldReporting operatorWellsOil, bblGas, mcfReported
Bullhead O-9-20070Spraberry (Trend Area)Discovery Natural Resources LLC1327.48M54.2MNov 2018 – Jul 2026
Rocker B -E- O-9-4544Spraberry (Trend Area)Discovery Natural Resources LLC966.8K710KJan 1993 – Jan 2019

Gas, mcf lease total

Last 12 months 10,311,743 · prior 12 10,722,552(-4%)

0500K1M1.5M202420252026

Oil, barrels lease total

Last 12 months 1,333,222 · prior 12 1,525,825(-13%)

0100K200K300K202420252026

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
  4. 4Discovery Natural Resources LLCNov 2018 → Apr 2026

Permits

PermitTypeOperatorReceivedIssuedSpudDepth
237117-99DrillCox, John L.Apr 26, 1984Apr 30, 1984—7,300

Completions

CompletedLeaseFieldOperatorStatusDepth
—— O-9-4544————
—— O-9-20070————

Formation tops

As filed on W-2/G-1. Subsea from 2,596 ft elevation.Download CSV →

FormationMD ftSubsea
Cretaceous5002,096
SpraberryUPPER SPRABERRY5,500-2,904
SpraberryLOWER SPRABERRY6,090-3,494
Dean6,930-4,334

Perforations

Perforated and open-hole intervals.

FromToType
5,5045,518Perforated
6,0966,495Perforated
6,9307,106Perforated

Casing

Strings as reported, shallowest first.

Casing inSet atHole inCement
8.62556512.25450 sx
4.57,2007.8751,000 sx

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
00May 16, 2023May 2, 2023—
00Dec 13, 2018Aug 20, 1984—
00Aug 24, 1984Aug 20, 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/38333033, documented in the API reference.