WELL · 42-501-32178 · DISTRICT 8
Denver Unit #4577
Yoakum County · Vertical
Denver Unit #4577 (API 42-501-32178) is a disposal or injection well in Yoakum County operated by Occidental Permian Ltd. under an active UIC permit.
The RRC has issued 2 drilling permits between 1981 and 2021, permitted to 7,600 ft.
Completion filings report 5 formation tops, including Rustler, Yates, San Andres, Glorieta.
Its lease has reported 15.1M barrels of oil and 5.22M mcf of gas since January 1993, last reporting in July 2026. The lease carries 269 wells, so these are lease totals, not this well alone.
It holds an active disposal or injection permit; TexNet located 1 M2+ earthquakes within 10 km over the last two years.
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 | none |
| Production reports | Occidental Permian Ltd.through Apr 2026 |
| Latest permit | Occidental Permian Ltd.Aug 26, 2021 |
- 7,600
- total depth, ft
- 2
- permits on file
- Aug 26, 2021
- last permit issued
- —
- completed
- 15.1M
- cumulative oil, bbl
- 5.22M
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- OFF SCHEDULE
- Completed
- —
- Shut in
- —
- Plugged
- —
Surface location
32.966968, -102.845512
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 269 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Yoakum Wasson Clearfork Unit O-11-63523 | Wasson 72 | Occidental Permian Ltd. | 269 | 15.1M | 5.22M | Jan 1993 – Jul 2026 |
Oil, barrels lease total
Last 12 months 396,123 · prior 12 337,007(+18%)
Gas, mcf lease total
Last 12 months 194,441 · prior 12 220,700(-12%)
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 |
|---|---|---|---|---|---|---|
| 872181-99 | Recompletion | Occidental Permian Ltd. | Aug 19, 2021 | Aug 26, 2021 | — | 5,800 |
| 144795-99 | Drill | Shell Oil Company | Dec 18, 1981 | Dec 18, 1981 | — | 7,600 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — O-11-63523 | — | — | — | — |
| — | — O-11-63523 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 3,572 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Rustler | 2,080 | 1,492 |
| Yates | 2,855 | 717 |
| San Andres | 4,245 | -673 |
| Glorieta | 5,550 | -1,978 |
| Clear ForkUPPER CLEARFORK | 5,703 | -2,131 |
| Clear ForkLOWER CLEARFORK | 6,893 | -3,321 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 5,654 | 5,984 | Perforated |
| 6,152 | 6,958 | Perforated |
| — | 6,958 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 16 | 127 | 30 | 375 S |
| 10.75 | 2,108 | 14.75 | 1,400 S |
| 7.625 | 5,445 | 9.5 | 1,725 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 | Mar 11, 2008 | May 11, 2007 | — |
| 00 | Feb 13, 2008 | Apr 3, 1995 | — |
| 00 | Apr 26, 1995 | Apr 3, 1995 | — |
| 00 | May 25, 1984 | — | — |
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 42-501-32178 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-501-32178 → 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 Unit42-501-36513
0.9 KM · Occidental Permian Ltd. · Section with this well →
| Santa Rosa | 1,336 | |
| Yates | 2,787 | |
| San Andres | 4,103 | |
| Wolfcamp | — | |
| Clear Fork | — | |
| Glorieta | — | |
| Leonard | — | |
| Pennsylvanian | — |
10 TOPS · FIRST 8
Rhodes, T.R. "37"42-501-34996
0.9 KM · Pure Resources, L.P. · Section with this well →
| Rustler | 2,090 | 1,482 |
| Yates | 2,876 | 696 |
| Grayburg | 4,013 | -441 |
| San Andres | 4,266 | -694 |
| Wichita-Albany | 7,420 | -3,848 |
| Woodford | 10,086 | -6,514 |
| Devonian | 10,726 | -7,154 |
Denver Unit42-501-36510
0.9 KM · Occidental Permian Ltd. · Section with this well →
| Yates | 2,878 | 693 |
| San Andres | 4,243 | -672 |
| Wolfcamp | — | |
| Clear Fork | — | |
| Strawn | — | |
| Wichita-Albany | — | |
| Pennsylvanian | — | |
| Leonard | — |
10 TOPS · FIRST 8
Denver Unit42-501-37250
1.0 KM · Occidental Permian Ltd. · Section with this well →
| Santa Rosa | 1,326 | |
| Yates | 2,818 | |
| San Andres | 4,132 | |
| Leonard | — | |
| Clear Fork | — | |
| Glorieta | — | |
| Pennsylvanian | — | |
| Strawn | — |
10 TOPS · FIRST 8
Denver Unit42-501-37251
1.1 KM · Occidental Permian Ltd. · Section with this well →
| Santa Rosa | 1,279 | |
| Yates | 2,830 | |
| San Andres | 4,268 | |
| Leonard | — | |
| Wolfcamp | — | |
| Wichita-Albany | — | |
| Strawn | — | |
| Pennsylvanian | — |
10 TOPS · FIRST 8
Denver Unit42-501-02228
1.4 KM · Occidental Permian Ltd. · Section with this well →
| Rustler | 2,118 | 1,462 |
| Yates | 2,950 | 630 |
| Queen | 3,642 | -62 |
| San Andres | 4,311 | -731 |
Denver Unit42-501-37249
1.4 KM · Occidental Permian Ltd. · Section with this well →
| Santa Rosa | 1,376 | |
| Yates | 2,836 | |
| San Andres | 4,077 | |
| Clear Fork | — | |
| Strawn | — | |
| Wichita-Albany | — | |
| Pennsylvanian | — | |
| Leonard | — |
10 TOPS · FIRST 8
Denver Unit42-501-37385
1.4 KM · Occidental Permian Ltd. · Section with this well →
| Yates | 2,890 | 695 |
| Seven Rivers | 3,115 | 470 |
| Queen | 3,599 | -14 |
| Grayburg | 4,029 | -444 |
| San Andres | 4,264 | -679 |
| Glorieta | — | |
| Wichita-Albany | — | |
| Leonard | — |
10 TOPS · FIRST 8
Beyond the permit record
RRC UIC permits · H-10 reported volumes
Injection
- 0
- bbl, last 12 reported months
- 0
- bbl, all reported
- Sep 2025
- reported through
| UIC | Kind | Status | Permitted bbl/d | Max psi | Zone ft |
|---|---|---|---|---|---|
| 000097274 | H-1 Injection | Active | 1,500 | 2,500 | 5,500–7,700 |
MONTHLY INJECTED, BBL · H-10 · LAST 24 REPORTED MONTHS
Last 12 months 0 · prior 12 0
TexNet catalog via USGS
Seismicity near this well
- 1
- M2+ events within 10 km, last 2 years
- M3.1
- largest
A proximity count, not an attribution. How to read 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/50132178, documented in the API reference.