TEXAS · WELLS · GAINES COUNTY · API 42-165-34225 · DISTRICT 7B

West Seminole SA Unit #508

Y

Gaines County · Seminole West field · Injection  · Vertical

West Seminole SA Unit #508 (API 42-165-34225) is a well in Gaines County operated by Oxy USA Wtp LP, completed April 21, 2025 and listed as injection on the RRC schedule.

The RRC has issued one drilling permit, issued September 24, 1990, permitted to 5,300 ft.

It was permitted by Oxy USA Inc. and has since transferred to Oxy USA Wtp LP on the wellbore schedule.

Completion filings report 4 formation tops, including Yates, Queen, Grayburg, San Andres.

Its 2 leases have reported 18.3M barrels of oil and 59.5M mcf of gas since January 1993, last reporting volume in April 2026. The leases carry 227 wells, so these are lease totals, not this well alone.

It holds an active disposal or injection permit, with 231K barrels injected in the 12 months reported through October 2025.

Operator of record

OXY USA WTP LP

Permitted by OXY USA Inc.; the EWA schedule now lists a different operator.

Based in
Houston, TX
P-5 status
Active (A)
P-5 last filed
Oct 16, 2025
Permits on file
2,289
Phone
(713) 215-7000

SOURCE · RRC EWA WELLBORE SCHEDULE

What each RRC source says

Wellbore scheduleOXY USA WTP LP
Production reportsOXY USA WTP LPthrough Apr 2026
Latest permitOXY USA Inc.Sep 24, 1990

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

5,300
total depth, ft
1
permits on file
Sep 24, 1990
last permit issued
Apr 21, 2025
completed
18.3M
cumulative oil, bbl
59.5M
cumulative gas, mcf

PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Apr 2026

Regulatory status · RRC wellbore file

Schedule
ON SCHEDULE
Completed
Apr 21, 2025
Shut in
—
Plugged
—

Operator's P-5 on the schedule: Active – Extension (X)

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

LeaseFieldReporting operatorWellsOil, bblGas, mcfReported
West Seminole SA Unit O-11-17310Seminole, WestOXY USA WTP LP22618.2M55.7MJan 1993 – Apr 2026
West Seminole SA Unit G-11-171885Seminole, WestOXY USA WTP LP121.5K3.73MJul 1998 – Jul 2013

Oil, barrels lease total

Last 12 months 1,315,451 · prior 12 1,395,720(-6%)

050K100K150K202420252026

Gas, mcf lease total

Last 12 months 3,364,915 · prior 12 3,848,328(-13%)

0200K400K202420252026

Chain of custody

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

  1. 1OXY USA Inc.Jan 1993 → Dec 2000
  2. 2OXY USA WTP LPJan 2001 → Apr 2026

Permits

PermitTypeOperatorReceivedIssuedSpudDepth
378255-99DrillOXY USA Inc.Sep 21, 1990Sep 24, 1990Nov 20, 19905,500

Completions

CompletedLeaseFieldOperatorStatusDepth
Apr 21, 2025West Seminole SA Unit O-11-17310Seminole WestOXY USA WTP LPInjection5,300
Apr 17, 2014West Seminole SA Unit G-11-171885Seminole WestOXY USA WTP LPNot on Schedule—
Mar 7, 1992West Seminole SA Unit O-11-17310Seminole WestOXY USA WTP LPNot on Schedule—

Formation tops

As filed on W-2/G-1. Subsea from 3,466 ft elevation.Download CSV →

FormationMD ftSubsea
Yates3,109357
Yates3,110356
Yates3,112354
Queen3,38086
Grayburg4,304-838
San Andres4,572-1,106
San Andres4,580-1,114
San Andres4,703-1,237

Perforations

Perforated and open-hole intervals.

FromToType
4,8845,242Perforated
4,8845,252Perforated
4,8855,025Perforated
5,0505,088Perforated
5,0505,252Perforated
5,0955,252Perforated
5,1085,252Perforated

Casing

Strings as reported, shallowest first.

Casing inSet atHole inCement
8.6252,01312.25900 S
5.55,0987.8751,000 S
5.55,2987.8751,000 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. The record date is the RRC's own date on the record, not the day the report was filed: 462,034 of the state's filings carry 1984-01-12. About these reports →

SuffixRRC record dateW-2 / G-1 dateLogs referenced
00Jun 13, 2025Jun 3, 2025—
00Nov 22, 2024May 22, 2024—
00Aug 4, 2016Aug 3, 2016—
00Aug 25, 2014Aug 5, 2014—
00Mar 23, 1999Nov 23, 1998—
00Feb 26, 1999——
00Jun 10, 1992May 4, 1992—
00Jan 31, 1991Jan 17, 1991Yes
00Jan 21, 1991——

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 filed since 2004 open from the RRC's log search for this well; none are loaded here for it. The University Lands library has no per-well link: then paste it into its search.

Find logs withinmiles of this well:List →Map →

Beyond the permit record

RRC UIC permits · H-10 reported volumes

Injection

231K
bbl, last 12 reported months
4.15M
bbl, all reported
Oct 2025
reported through
UICKindStatusPermitted bbl/dMax psiZone ft
000114070H-1 InjectionActive5,0002,4004,800–6,000

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

Last 12 months 230,728 · prior 12 172,620(+34%)

020K40K20242025

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

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