TEXAS · WELLS · HOCKLEY COUNTY · API 42-219-33286 · DISTRICT 7B
West Sundown Unit #36
Hockley County · Slaughter field · Producing · Vertical
West Sundown Unit #36 (API 42-219-33286) is a well in Hockley County operated by Hilcorp Energy Company, completed September 4, 2019 and listed as producing on the RRC schedule.
The RRC has issued one drilling permit, issued September 25, 1981, permitted to 4,975 ft.
It was permitted by Bass Enterprises Production CO. and has since transferred to Hilcorp Energy Company on the wellbore schedule.
Completion filings report 3 formation tops, including Santa Rosa, Yates, San Andres.
Its 2 leases have reported 9.38M barrels of oil and 5.96M mcf of gas since January 1993, last reporting in July 2026. The leases carry 281 wells, so these are lease totals, not this well alone.
Operator of record
Permitted by Bass Enterprises Production Co.; the EWA schedule now lists a different operator.
- Based in
- Houston, TX
- P-5 status
- Active – Extension (X)
- P-5 last filed
- Mar 27, 2026
- Permits on file
- 3,454
- Phone
- (713) 209-2400
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | OXY USA Inc. |
| Production reports | OXY USA Inc.through Apr 2026 |
| Latest permit | Bass Enterprises Production Co.Sep 25, 1981 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 4,975
- total depth, ft
- 1
- permits on file
- Sep 25, 1981
- last permit issued
- Sep 4, 2019
- completed
- 9.38M
- cumulative oil, bbl
- 5.96M
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Sep 4, 2019
- Shut in
- —
- Plugged
- —
Operator's P-5 on the schedule: Active (A)
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 281 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| West Sundown Unit O-11-70442 | Slaughter | OXY USA EOR, LLC | 240 | 6.39M | 4.65M | May 2016 – Jul 2026 |
| Slaughter Unit "2" O-11-60048 | Slaughter | OXY USA Inc. | 41 | 2.99M | 1.31M | Jan 1993 – Aug 2016 |
Oil, barrels lease total
Last 12 months 891,436 · prior 12 936,792(-5%)
Gas, mcf lease total
Last 12 months 535,070 · prior 12 832,821(-36%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Bass Enterprises Production Co.Jan 1993 → Dec 2006
- 2Bepco, L.P.Jan 2007 → Nov 2008
- 3Bopco, L.P.Dec 2008 → Mar 2011
- 4OXY USA Inc.Apr 2011 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 135718-99 | Drill | Bass Enterprises Production Co. | Sep 25, 1981 | Sep 25, 1981 | Oct 4, 1981 | 5,000 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| Sep 4, 2019 | West Sundown Unit O-11-70442 | Slaughter | Hilcorp Energy Company | Producing | 4,975 |
| Oct 24, 1981 | Slaughter Unit 2 O-11-60048 | Slaughter | OXY USA Inc. | Not on Schedule | — |
Formation tops
As filed on W-2/G-1. Subsea from 3,577 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Santa RosaRED BED-SANTA ROSA | 1,355 | 2,222 |
| Yates | 2,803 | 774 |
| San Andres | 4,354 | -777 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 4,857 | 4,975 | Open hole |
| 4,860 | 4,975 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 8.625 | 438 | 12.25 | 280 S |
| 5.5 | 4,860 | 7.875 | 240 S |
| 2.375 | 4,970 | — | — |
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 →
| Suffix | Filed | W-2 / G-1 date | Logs referenced |
|---|---|---|---|
| 00 | Jan 15, 2020 | Oct 14, 2019 | — |
| 00 | Apr 11, 2017 | Mar 7, 2017 | — |
| 00 | May 5, 2016 | Nov 25, 1981 | — |
| 00 | Jan 12, 1984 | Nov 25, 1981 | — |
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 42-219-33286 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-219-33286 → scanned completion filings
Log images are in archives with no per-well link: the RRC's Neubus archive (2004 onward). then paste it into their search.
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/21933286, documented in the API reference.