TEXAS · WELLS · YOAKUM COUNTY · WILLARD UNIT LEASE · API 42-501-32901 · DISTRICT 7B
Willard Unit #81B
Yoakum County · Wasson field · Injection · Vertical
Willard Unit #81B (API 42-501-32901) is a well in Yoakum County operated by Oxy USA Wtp LP, completed April 1, 2022 and listed as injection on the RRC schedule.
The RRC has issued one drilling permit, issued July 3, 1985, permitted to 5,450 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 5 formation tops, including Red Bed, Redbeds, Queen, Grayburg.
Its lease has reported 65.9M barrels of oil and 196M mcf of gas since the record begins in January 1993, last reporting volume in August 2026. The lease carries 876 wells, so these are lease totals, not this well alone.
It holds an active disposal or injection permit, with 551 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 – Extension (X)
- P-5 last filed
- Oct 21, 2026
- 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 Aug 2026 |
| Latest permit | Arco Oil & Gas Co.Jul 3, 1985 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 5,450
- total depth, ft
- 1
- permits on file
- Jul 3, 1985
- last permit issued
- Apr 1, 2022
- completed
- 65.9M
- cumulative oil, bbl
- 196M
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · ON RECORD FROM JAN 1993, THE RECORD'S FIRST MONTH, THROUGH AUG 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Apr 1, 2022
- 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 AUG 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 | 65.9M | 196M | by Jan 1993 – Aug 2026 |
Oil, barrels lease total
Last 12 months 1,562,491 · prior 12 1,580,010(-1%)
Gas, mcf lease total
Last 12 months 2,473,797 · prior 12 2,327,559(+6%)
Wells named Willard Unit
OXY USA WTP LP's other wells filed under this lease name in Yoakum 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.
- 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 → Aug 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 279356-99 | Drill | Arco Oil & Gas Co. | Sep 19, 1985 | Jul 3, 1985 | Aug 10, 1985 | 5,300 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| Apr 1, 2022 | Willard Unit O-11-19308 | Wasson | OXY USA WTP LP | Injection | 5,450 |
Formation tops
As filed on W-2/G-1. Subsea from 3,604 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Red Bed | 408 | 3,196 |
| Redbeds | 408 | 3,196 |
| Queen | 3,560 | 44 |
| Grayburg | 4,360 | -756 |
| San Andres | 4,470 | -866 |
| San Andres | 4,507 | -903 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 5,080 | 5,202 | Perforated |
| 5,080 | 5,202 | Open hole |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 8.625 | 500 | 12.25 | 375 S |
| 5.5 | 5,450 | 7.875 | 1,650 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 | Apr 26, 2024 | Jul 19, 2023 | — |
| 00 | May 13, 2014 | Jul 17, 2013 | — |
| 00 | Oct 25, 1985 | Sep 26, 1985 | Yes |
| 00 | Oct 22, 1985 | — | — |
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 42-501-32901 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-501-32901 → 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
- 551
- bbl, last 12 reported months
- 2.44K
- bbl, all reported
- Sep 2025
- reported through
| UIC | Kind | Status | Permitted bbl/d | Max psi | Zone ft |
|---|---|---|---|---|---|
| 000057675 | H-1 Injection | Active | 5,000 | 2,300 | 4,600–5,600 |
MONTHLY INJECTED, BBL · H-10 · LAST 24 REPORTED MONTHS
Last 12 months 551 · prior 12 0
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/50132901, documented in the API reference.