WELL · 42-501-36978 · DISTRICT 8
Denver Unit #3960
Yoakum County · Wasson field · Producing · Directional
Denver Unit #3960 (API 42-501-36978) is a well in Yoakum County operated by Occidental Permian Ltd., completed September 10, 2018 and listed as producing on the RRC schedule.
The RRC has issued one drilling permit, issued March 13, 2018, permitted to 5,800 ft.
Completion filings report 10 formation tops, including Santa Rosa, Rustler, Yates, Queen.
Its lease has reported 352M barrels of oil and 1.17B mcf of gas since January 1993, last reporting in July 2026. The lease carries 2,471 wells, so these are lease totals, not this well alone.
Operator of record
Houston, TX · P-5 Y, filed Dec 4, 2025 · 6,251 permits on file · (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.Mar 13, 2018 |
- 5,800
- total depth, ft
- 1
- permits on file
- Mar 13, 2018
- last permit issued
- Sep 10, 2018
- completed
- 352M
- cumulative oil, bbl
- 1.17B
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Sep 10, 2018
- Shut in
- —
- Plugged
- —
Operator's P-5 on the schedule: Active
Surface location
32.984957, -102.781740
OpenStreetMap → · Google Maps →
Permit surface location from the RRC GIS record, in Yoakum County.
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 – Jul 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 |
|---|---|---|---|---|---|---|
| 837459-99 | Drill | Occidental Permian Ltd. | Mar 13, 2018 | Mar 13, 2018 | Aug 19, 2018 | 5,800 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — O-11-18910 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Download CSV →
| Formation | MD ft |
|---|---|
| Santa RosaRED BED-SANTA ROSA | 1,619 |
| Rustler | 2,284 |
| Yates | 3,044 |
| Queen | 3,800 |
| Greyburg | 4,193 |
| San AndresSAN ANDRES - HIGH FLOWS, H2S, CO | 4,443 |
| Clear ForkCLEARFORK - ACTIVE CO2 FLOOD | — |
| Glorieta | — |
| Leonard | — |
| Wichita-AlbanyWICHITA | — |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 4,944 | 5,355 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 8.625 | 2,314 | 12.25 | 1,115 S |
| 5.5 | 5,447 | 7.875 | 1,615 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. About these reports →
| Suffix | Filed | W-2 / G-1 date | Logs referenced |
|---|---|---|---|
| 00 | Feb 8, 2019 | Jan 3, 2019 | Yes |
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 42-501-36978 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-501-36978 → 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.
Nearby wells and their tops
NEAREST 8 LOCATED WELLS WITH TOPS · WITHIN 16 KM
Draw a cross-section
This well's tops beside its 5 nearest neighbours, subsea-aligned so they line up regardless of surface terrain.
Denver Unit42-501-30858
0.2 KM · Occidental Permian Ltd. · Section with this well →
| San Andres | 4,490 | -945 |
Yoakum Wasson Clearfork Unit42-501-36927
0.4 KM · Occidental Permian Ltd. · Section with this well →
| Yates | 3,047 | 516 |
| San Andres | 4,454 | -891 |
| Glorieta | 5,830 | -2,267 |
| Clear Fork | 5,984 | -2,421 |
| Wichita-Albany | 7,923 | -4,360 |
| Pennsylvanian | — | |
| Santa Rosa | — | |
| Strawn | — |
10 TOPS · FIRST 8
Denver Unit42-501-00610
0.7 KM · Occidental Permian Ltd. · Section with this well →
| San Andres | 4,452 |
Denver Unit42-501-00602
0.8 KM · Occidental Permian Ltd. · Section with this well →
| Rustler | 2,274 | 1,300 |
| Yates | 3,032 | 542 |
| Queen | 3,790 | -216 |
| Gray | 4,170 | -596 |
| San Andres | 4,463 | -889 |
Denver Unit42-501-36913
0.9 KM · Occidental Permian Ltd. · Section with this well →
| Santa Rosa | 1,468 | |
| Yates | 3,024 | |
| San Andres | 4,420 | |
| Wolfcamp | — | |
| Clear Fork | — | |
| Glorieta | — | |
| Leonard | — | |
| Pennsylvanian | — |
10 TOPS · FIRST 8
Yoakum Wasson Clearfork Unit42-501-37595
1.0 KM · Occidental Permian Ltd. · Section with this well →
| Santa Rosa | 633 | 2,908 |
| Yates | 3,052 | 489 |
| San Andres | 4,458 | -917 |
| Glorieta | 5,861 | -2,320 |
| Pennsylvanian | — | |
| Clear Fork | — | |
| Leonard | — | |
| Wolfcamp | — |
10 TOPS · FIRST 8
Denver Unit42-501-36911
1.0 KM · Occidental Permian Ltd. · Section with this well →
| Santa Rosa | 1,468 | |
| Yates | 3,037 | |
| Queen | 3,740 | |
| San Andres | 4,438 | |
| Wichita-Albany | — | |
| Clear Fork | — | |
| Glorieta | — | |
| Leonard | — |
10 TOPS · FIRST 8
Yoakum Wasson Clearfork Unit42-501-36925
1.0 KM · Occidental Permian Ltd. · Section with this well →
| Rustler | 2,260 | 1,301 |
| Tansil | 2,877 | 684 |
| Yates | 3,040 | 521 |
| Seven Rivers | 3,238 | 323 |
| Queen | 3,752 | -191 |
| Grayburg | 4,187 | -626 |
| San Andres | 4,449 | -888 |
| Glorieta | 5,849 | -2,288 |
15 TOPS · FIRST 8
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/50136978, documented in the API reference.