TEXAS · WELLS · YOAKUM COUNTY · WILLARD UNIT LEASE · API 42-501-33542 · DISTRICT 7B
Willard Unit #12X
Yoakum County · Wasson field · Injection · Vertical
Willard Unit #12X (API 42-501-33542) is a well in Yoakum County operated by Oxy USA Wtp LP, completed November 26, 2024 and listed as injection on the RRC schedule.
The RRC has issued one drilling permit, issued December 13, 1989, permitted to 5,400 ft.
It was permitted by Arco Oil & Gas CO. and has since transferred to Oxy USA Wtp LP on the wellbore schedule.
Completion filings report 2 formation tops, including Yates, San Andres.
Its lease has reported 65.4M barrels of oil and 195M mcf of gas since January 1993, last reporting volume in April 2026. The lease carries 876 wells, so these are lease totals, not this well alone.
It holds an active disposal or injection permit, with 9.45K barrels injected in the 12 months reported through September 2025.
Operator of record
Permitted by Arco Oil & Gas Co.; 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 | Arco Oil & Gas Co.Dec 13, 1989 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 5,400
- total depth, ft
- 1
- permits on file
- Dec 13, 1989
- last permit issued
- Nov 26, 2024
- completed
- 65.4M
- cumulative oil, bbl
- 195M
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Apr 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Nov 26, 2024
- 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 lease this well is completed on; they carry 876 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Willard Unit O-11-19308 | Wasson | OXY USA WTP LP | 876 | 65.4M | 195M | Jan 1993 – Apr 2026 |
Oil, barrels lease total
Last 12 months 1,636,552 · prior 12 1,529,949(+7%)
Gas, mcf lease total
Last 12 months 2,207,843 · prior 12 2,484,649(-11%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Arco Oil & Gas Co.Jan 1993 → May 1994
- 2Arco PermianJun 1994 → Dec 2001
- 3BP America Production CompanyJan 2002 → Apr 2003
- 4OXY USA WTP LPMay 2003 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 367526-99 | Drill | Arco Oil & Gas Co. | Dec 11, 1989 | Dec 13, 1989 | — | 5,500 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| Nov 26, 2024 | Willard Unit O-11-19308 | Wasson | OXY USA WTP LP | Injection | 5,400 |
Formation tops
As filed on W-2/G-1. Subsea from 3,575 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Yates | 3,012 | 563 |
| San Andres | 4,432 | -857 |
| San Andres | 4,456 | -881 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 4,980 | 5,157 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 13.375 | 480 | 17.5 | 550 S |
| 8.625 | 2,250 | 12.25 | 830 S |
| 5.5 | 5,400 | 7.875 | 1,485 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 | Feb 27, 2025 | Jan 3, 2025 | — |
| 00 | Jan 2, 2025 | May 6, 2024 | — |
| 00 | Sep 12, 1990 | Aug 22, 1990 | — |
| 00 | Aug 31, 1990 | — | — |
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 42-501-33542 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-501-33542 → scanned completion filings
Log images filed since 2004 open from the RRC's log search for this well; none are loaded here for it.
Beyond the permit record
RRC UIC permits · H-10 reported volumes
Injection
- 9.45K
- bbl, last 12 reported months
- 3.59M
- bbl, all reported
- Sep 2025
- reported through
| UIC | Kind | Status | Permitted bbl/d | Max psi | Zone ft |
|---|---|---|---|---|---|
| 000072759 | H-1 Injection | Active | 1,500 | 2,450 | 4,900–5,600 |
MONTHLY INJECTED, BBL · H-10 · LAST 24 REPORTED MONTHS
Last 12 months 9,453 · prior 12 53,771(-82%)
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/50133542, documented in the API reference.