TEXAS · WELLS · YOAKUM COUNTY · CENTRAL OWNBY UNIT LEASE · API 42-501-32373 · DISTRICT 7B

Central Ownby Unit #4

Plugged

Yoakum County · Ownby (Clear Fork Upper) field  · Vertical

Central Ownby Unit #4 (API 42-501-32373) is a plugged well in Yoakum County, plugged February 19, 2009, last operated by Occidental Permian Ltd..

The RRC has issued one drilling permit, issued July 27, 1983, permitted to 7,100 ft.

It was permitted by Shell Oil Company and has since transferred to Occidental Permian Ltd. on the wellbore schedule.

Completion filings report 8 formation tops, including Base Red Beds, Yates, Seven Rivers, Grayburg.

Its lease has reported 12.3M barrels of oil and 2.68M mcf of gas since January 1993, last reporting in July 2026. The lease carries 156 wells, so these are lease totals, not this well alone.

Operator of record

Occidental Permian Ltd.

Permitted by Shell Oil Company; the EWA schedule now lists a different operator.

Based in
Houston, TX
P-5 status
Active (A)
P-5 last filed
Feb 2, 2026
Permits on file
6,251
Phone
(713) 215-7000

SOURCE · RRC EWA WELLBORE SCHEDULE

What each RRC source says

Wellbore scheduleOccidental Permian Ltd.
Production reportsOccidental Permian Ltd.through Apr 2026
Latest permitShell Oil CompanyJul 27, 1983

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

7,100
total depth, ft
1
permits on file
Jul 27, 1983
last permit issued
Jan 14, 1990
completed
12.3M
cumulative oil, bbl
2.68M
cumulative gas, mcf

PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Jul 2026

Regulatory status · RRC wellbore file

Schedule
OFF SCHEDULE
Completed
Jan 14, 1990
Shut in
—
Plugged
Feb 19, 2009

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

LeaseFieldReporting operatorWellsOil, bblGas, mcfReported
Central Ownby Unit O-11-66222Ownby (Clear Fork, Upper)Occidental Permian Ltd.15612.3M2.68MJan 1993 – Jul 2026

Oil, barrels lease total

Last 12 months 97,996 · prior 12 107,048(-8%)

05K10K15K202420252026

Gas, mcf lease total

Last 12 months 26,335 · prior 12 27,253(-3%)

02K4K202420252026

Chain of custody

Every operator that reported production on this well's lease, in order.

  1. 1Shell Western E&P Inc.Jan 1993 → Feb 1997
  2. 2Altura Energy Ltd.Mar 1997 → Apr 2000
  3. 3Occidental Permian Ltd.May 2000 → Apr 2026

Permits

PermitTypeOperatorReceivedIssuedSpudDepth
203048-99DrillShell Oil CompanyJul 27, 1983Jul 27, 1983Oct 21, 19837,100

Completions

CompletedLeaseFieldOperatorStatusDepth
Jan 14, 1990Central Ownby Unit O-11-66222Ownby (Clear Fork Upper)Occidental Permian Ltd.Plugged—
Feb 16, 1984Gilstrap B. L. O-11-13956Ownby (Clear Fork Upper)Shell Western E&P Inc.Plugged—
Feb 16, 1984Central Ownby Unit O-11-66222Ownby (Clear Fork Upper)Occidental Permian Ltd.Plugged—

Formation tops

As filed on W-2/G-1. Subsea from 3,569 ft elevation.Download CSV →

FormationMD ftSubsea
Base Red Beds2,588981
Yates3,350219
Seven Rivers7 RIVERS3,577-8
Seven Rivers3,577-8
Grayburg4,566-997
San Andres4,738-1,169
Glorieta6,087-2,518
U. Clearfork6,618-3,049
Clear ForkUPPER CLEARFORK6,618-3,049

Perforations

Perforated and open-hole intervals.

FromToType
6,6186,812Perforated

Casing

Strings as reported, shallowest first.

Casing inSet atHole inCement
13.37545017.5490 S
9.6252,64412.25940 S
5.57,1618.752,680 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
00Aug 31, 2009Jan 23, 2009—
00Apr 6, 1990Mar 5, 1990—
00Mar 24, 1990Mar 7, 1984—
00Aug 25, 1988Mar 7, 1984—
00Aug 17, 1988——
00Mar 27, 1984Mar 7, 1984—
00Mar 15, 1984Mar 7, 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). then paste it into their search.

Beyond the permit record

RRC UIC permits · H-10 reported volumes

Injection

137K
bbl, last 12 reported months
2.38M
bbl, all reported
Nov 2008
reported through
UICKindStatusPermitted bbl/dMax psiZone ft
000067111H-1 InjectionPlugged Mar 9, 20091,5001,5506,590–7,338

MONTHLY INJECTED, BBL · H-10 · LAST 24 REPORTED MONTHS

Last 12 months 136,718 · prior 12 208,242(-34%)

010K20K30K20072008

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/50132373, documented in the API reference.