TEXAS · WELLS · GAINES COUNTY · WEST SEMINOLE SA UNIT LEASE · API 42-165-31837 · DISTRICT 7B
West Seminole SA Unit #321
Gaines County · Seminole West field · Injection · Vertical
West Seminole SA Unit #321 (API 42-165-31837) is a well in Gaines County operated by Oxy USA Wtp LP, completed April 19, 2017 and listed as injection on the RRC schedule.
The RRC has issued one drilling permit, issued July 28, 1980, permitted to 5,202 ft.
It was permitted by Cities Service Company and has since transferred to Oxy USA Wtp LP on the wellbore schedule.
Completion filings report one formation top, including San Andres.
Its lease has reported 18.2M barrels of oil and 55.7M mcf of gas since the record begins in January 1993, last reporting volume in April 2026. The lease carries 226 wells, so these are lease totals, not this well alone.
It holds an active disposal or injection permit, with 1.99K barrels injected in the 12 months reported through October 2025.
Operator of record
Permitted by Cities Service Company; 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 schedule | OXY USA WTP LP |
| Production reports | OXY USA WTP LPthrough Apr 2026 |
| Latest permit | Cities Service CompanyJul 28, 1980 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 5,202
- total depth, ft
- 1
- permits on file
- Jul 28, 1980
- last permit issued
- Apr 19, 2017
- completed
- 18.2M
- cumulative oil, bbl
- 55.7M
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · ON RECORD FROM JAN 1993, THE RECORD'S FIRST MONTH, THROUGH APR 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Apr 19, 2017
- 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.
Wells nearby
Every well with a location on file around this well, in any state, nearest first.
Texas locations come from drilling permits, so most older Texas wells have none and are not listed.
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 226 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| West Seminole SA Unit O-11-17310 | Seminole, West | OXY USA WTP LP | 226 | 18.2M | 55.7M | by Jan 1993 – Apr 2026 |
Oil, barrels lease total
Last 12 months 1,315,451 · prior 12 1,395,720(-6%)
Gas, mcf lease total
Last 12 months 3,364,915 · prior 12 3,848,328(-13%)
Wells named West Seminole SA Unit
OXY USA WTP LP's other wells filed under this lease name in Gaines County, newest permit first. The RRC gives a gas well its own lease number, so the name is what joins the wells of a unit.
Loading the lease's wellsChain of custody
Every operator that reported production on this well's lease, in order.
- 1OXY USA Inc.Jan 1993 → Dec 2000
- 2OXY USA WTP LPJan 2001 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 89378-99 | Drill | Cities Service Company | Jul 28, 1980 | Jul 28, 1980 | Sep 25, 1980 | 5,250 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| Apr 19, 2017 | West Seminole SA Unit O-11-17310 | Seminole West | OXY USA WTP LP | Injection | 5,202 |
Formation tops
As filed on W-2/G-1. Subsea from 3,452 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| San Andres | 4,585 | -1,133 |
| San Andres | 4,608 | -1,156 |
| San Andres | 5,108 | -1,656 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 5,006 | 5,178 | Perforated |
| 5,008 | 5,180 | Perforated |
| 5,076 | 5,142 | Perforated |
| 5,076 | 5,178 | Perforated |
| 5,108 | 5,180 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 8.625 | 2,010 | 12.25 | 1,000 S |
| 2.875 | 5,039 | — | — |
| 5.5 | 5,202 | 7.875 | 2,200 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 →
| Suffix | RRC record date | W-2 / G-1 date | Logs referenced |
|---|---|---|---|
| 00 | Nov 7, 2022 | Jun 6, 2022 | — |
| 00 | Jun 7, 2017 | May 15, 2017 | — |
| 00 | Jul 28, 2009 | Oct 30, 2007 | — |
| 00 | May 17, 1990 | May 2, 1990 | — |
| 00 | Jan 12, 1984 | Nov 17, 1980 | — |
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 42-165-31837 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-165-31837 → scanned completion filings
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.
Beyond the permit record
RRC UIC permits · H-10 reported volumes
Injection
- 1.99K
- bbl, last 12 reported months
- 2.17M
- bbl, all reported
- Oct 2025
- reported through
| UIC | Kind | Status | Permitted bbl/d | Max psi | Zone ft |
|---|---|---|---|---|---|
| 000044613 | H-1 Injection | Active | 5,000 | 2,400 | 4,800–5,400 |
MONTHLY INJECTED, BBL · H-10 · LAST 24 REPORTED MONTHS
Last 12 months 1,991 · prior 12 15,603(-87%)
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/16531837, documented in the API reference.