TEXAS · WELLS · YOAKUM COUNTY · DENVER UNIT LEASE · API 42-501-34237 · DISTRICT 7B
Denver Unit #3866
Yoakum County · Wasson field · Producing · Directional
Denver Unit #3866 (API 42-501-34237) is a well in Yoakum County operated by Occidental Permian Ltd., completed February 20, 2018 and listed as producing on the RRC schedule.
The RRC has issued 2 drilling permits between 1997 and 2008, permitted to 5,365 ft.
Completion filings report 4 formation tops, including Santa Rosa, Yates, San Andres, Sanandres.
Its lease has reported 352M barrels of oil and 1.17B mcf of gas since January 1993, last reporting volume in April 2026. The lease carries 2,471 wells, so these are lease totals, not this well alone.
Operator of record
- Based in
- Houston, TX
- P-5 status
- Active (A)
- P-5 last filed
- Feb 2, 2026
- Permits on file
- 6,251
- Phone
- (713) 215-7000
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Occidental Permian Ltd. |
| Production reports | Occidental Permian Ltd.through Apr 2026 |
| Latest permit | Occidental Permian Ltd.Jan 25, 2008 |
- 5,365
- total depth, ft
- 2
- permits on file
- Jan 25, 2008
- last permit issued
- Feb 20, 2018
- completed
- 352M
- cumulative oil, bbl
- 1.17B
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Apr 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Feb 20, 2018
- 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 lease this well is completed on; they carry 2,471 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Denver Unit O-11-18910 | Wasson | Occidental Permian Ltd. | 2,471 | 352M | 1.17B | Jan 1993 – Apr 2026 |
Oil, barrels lease total
Last 12 months 6,889,269 · prior 12 7,061,574(-2%)
Gas, mcf lease total
Last 12 months 9,464,854 · prior 12 11,150,167(-15%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Shell Western E&P Inc.Jan 1993 → Feb 1997
- 2Altura Energy Ltd.Mar 1997 → Apr 2000
- 3Occidental Permian Ltd.May 2000 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 651065-99 | Recompletion | Occidental Permian Ltd. | Dec 10, 2007 | Jan 25, 2008 | Jun 14, 2008 | 5,600 |
| 461599-99 | Drill | Altura Energy Ltd. | Apr 25, 1997 | May 1, 1997 | May 5, 1997 | 5,500 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| Feb 20, 2018 | Denver Unit O-11-18910 | Wasson | Occidental Permian Ltd. | Producing | 5,365 |
| Feb 20, 2018 | Denver Unit O-11-18910 | Wasson | Occidental Permian Ltd. | Producing | 5,365 |
Formation tops
As filed on W-2/G-1. Subsea from 3,575 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Santa RosaRED BED/SANTA ROSA | 1,100 | 2,475 |
| Yates | 2,800 | 775 |
| San Andres | 4,411 | -836 |
| San Andres | 5,600 | -2,025 |
| Sanandres | 5,600 | -2,025 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 4,951 | 5,169 | Perforated |
| 5,200 | 5,365 | Open hole |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 8.625 | 425 | 12.25 | 300 S |
| 5.5 | 5,200 | 7.875 | 1,300 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 5, 2019 | Oct 29, 2018 | — |
| 00 | Jul 27, 2016 | Jun 28, 2016 | — |
| 00 | Jul 26, 2016 | Jun 28, 2016 | — |
| 00 | Oct 6, 2008 | Aug 18, 2008 | Yes |
| 00 | Mar 17, 1998 | Oct 23, 1997 | Yes |
| 00 | Mar 9, 1998 | — | — |
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 42-501-34237 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-501-34237 → scanned completion filings
Log images filed since 2004 open from the RRC's log search for this well; none are loaded here for it.
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/50134237, documented in the API reference.