WELL · 42-501-02509 · DISTRICT 8
Denver Unit #4405W
Yoakum County · Vertical
Denver Unit #4405W (API 42-501-02509) is a disposal or injection well in Yoakum County operated by Shell Western E&P Inc. under an active UIC permit.
The RRC has issued one drilling permit, issued May 19, 1993, permitted to 5,354 ft.
Completion filings report one formation top, including San Andres.
Its 2 leases have reported 352M barrels of oil and 1.17B mcf of gas since January 1993, last reporting in July 2026. The leases carry 2,495 wells, so these are lease totals, not this well alone.
It holds an active disposal or injection permit, with 517K barrels injected in the 12 months reported through September 2025.
Operator of record
Houston, TX · P-5 Y, filed Jul 7, 2000 · 2,528 permits on file
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | none |
| Production reports | Occidental Permian Ltd.through Apr 2026 |
| Latest permit | Shell Western E&P Inc.May 19, 1993 |
- 5,354
- total depth, ft
- 1
- permits on file
- May 19, 1993
- last permit issued
- —
- 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
- OFF SCHEDULE
- Completed
- —
- Shut in
- —
- Plugged
- —
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 2,495 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 |
| Denver Unit O-11-66396 | Wildcat | Shell Western E&P Inc. | 24 | 0 | 0 | Jan 1993 – Nov 1993 |
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 |
|---|---|---|---|---|---|---|
| 411713-99 | Other | Shell Western E&P Inc. | May 13, 1993 | May 19, 1993 | — | 5,354 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — O-11-18910 | — | — | — | — |
| — | — O-11-66396 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 3,598 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| San Andres | 4,713 | -1,115 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 4,940 | 5,137 | Perforated |
| 4,940 | 5,288 | Perforated |
| 4,980 | 5,292 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 10.75 | 321 | 13.5 | 125 S |
| 10.75 | 321 | 13.75 | 125 S |
| 2.375 | 4,664 | — | — |
| 5.5 | 4,931 | 7.875 | 225 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 | Jun 16, 2022 | Feb 23, 2022 | — |
| 00 | Jun 4, 1993 | May 10, 1993 | — |
| 00 | May 14, 1993 | — | — |
| 00 | Jul 13, 1990 | Jun 18, 1990 | — |
| 00 | Jul 3, 1990 | — | — |
| 00 | Jan 17, 1989 | Nov 7, 1988 | — |
| 00 | Jan 12, 1984 | Mar 24, 1980 | — |
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 42-501-02509 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-501-02509 → 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.
Beyond the permit record
RRC UIC permits · H-10 reported volumes
Injection
- 517K
- bbl, last 12 reported months
- 5.26M
- bbl, all reported
- Sep 2025
- reported through
| UIC | Kind | Status | Permitted bbl/d | Max psi | Zone ft |
|---|---|---|---|---|---|
| 000028879 | H-1 Injection | Active | 4,500 | 2,200 | 4,380–5,404 |
MONTHLY INJECTED, BBL · H-10 · LAST 24 REPORTED MONTHS
Last 12 months 517,015 · prior 12 344,433(+50%)
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/50102509, documented in the API reference.