WELL · 42-235-33694 · DISTRICT 7
Rocker B -E- #4
Irion County · Spraberry (Trend Area) field · Vertical
Rocker B -E- #4 (API 42-235-33694) is a well in Irion County operated by Discovery Natural Resources LLC, completed February 14, 1998.
The RRC has issued one drilling permit, issued October 16, 1997, permitted to 7,200 ft.
It was permitted by Hugoton Energy Corporation and has since transferred to Discovery Natural Resources LLC on the wellbore schedule.
Completion filings report 5 formation tops, including Urp. Sprby, Middle Sprby, Jo Mill, Dean.
Its 3 leases have reported 550K barrels of oil and 3.16M mcf of gas since January 1993, last reporting in July 2026. The leases carry 40 wells, so these are lease totals, not this well alone.
Operator of record
Discovery Natural Resources LLC
Permitted by Hugoton Energy Corporation; the EWA schedule now lists a different operator.
Denver, CO · P-5 Y, filed Oct 4, 2025 · 449 permits on file · (303) 893-5073
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Discovery Natural Resources LLC |
| Production reports | Discovery Natural Resources LLCthrough Apr 2026 |
| Latest permit | Hugoton Energy CorporationOct 16, 1997 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 7,200
- total depth, ft
- 1
- permits on file
- Oct 16, 1997
- last permit issued
- Feb 14, 1998
- completed
- 550K
- cumulative oil, bbl
- 3.16M
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- OFF SCHEDULE
- Completed
- Feb 14, 1998
- 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 3 leases this well is completed on; they carry 40 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Highland O-9-16673 | Spraberry (Trend Area) | Discovery Natural Resources LLC | 18 | 297K | 2.17M | May 2008 – Jul 2026 |
| Rocker B '15' O-9-14639 | Spraberry (Trend Area) | Pioneer Natural Res. USA, Inc. | 6 | 120K | 279K | Sep 1997 – Feb 2024 |
| Rocker B -E- O-9-6173 | Spraberry (Trend Area) | Discovery Natural Resources LLC | 16 | 133K | 718K | Jan 1993 – Jan 2016 |
Gas, mcf lease total
Last 12 months 21,765 · prior 12 36,017(-40%)
Oil, barrels lease total
Last 12 months 2,489 · prior 12 4,634(-46%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Amax Oil & Gas Inc.Jan 1993 → Apr 1993
- 2Consolidated Oil & Gas, IncMay 1993 → Aug 1995
- 3Hugoton Energy CorporationSep 1995 → Mar 1998
- 4Chesapeake Operating, Inc.Apr 1998 → Sep 1999
- 5Nadel and Gussman Permian,l.l.c.Oct 1999 → Oct 2004
- 6Gruy Petroleum Management Co.Nov 2004 → Apr 2006
- 7Cimarex Energy Co. of ColoradoMay 2006 → Dec 2007
- 8Pioneer Natural Res. USA, Inc.Jan 2008 → Mar 2016
- 9Trilogy Operating, Inc.Jun 2008 → Apr 2010
- 10Fiml Natural Resources, LLCMay 2010 → Aug 2014
- 11Discovery Natural Resources LLCSep 2014 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 468629-99 | Drill | Hugoton Energy Corporation | Oct 9, 1997 | Oct 16, 1997 | Jan 11, 1998 | 7,200 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — O-9-6173 | — | — | — | — |
| — | — O-9-14639 | — | — | — | — |
| — | — O-9-16673 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 2,532 ft elevation.Download CSV →
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 5,083 | 5,295 | Perforated |
| 5,619 | 6,185 | Perforated |
| 6,494 | 6,582 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 8.625 | 600 | 11 | 340 S |
| 4.5 | 6,712 | 7.875 | 820 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 →
| Suffix | Filed | W-2 / G-1 date | Logs referenced |
|---|---|---|---|
| 00 | Dec 15, 2015 | Mar 9, 1998 | Yes |
| 00 | Jan 20, 2015 | Mar 9, 1998 | Yes |
| 00 | Jun 10, 1998 | Mar 9, 1998 | Yes |
| 00 | May 19, 1998 | — | — |
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.
- Wellbore filings for 42-235-33694 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-235-33694 → scanned completion filings
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/23533694, documented in the API reference.