WELL · 42-501-35308 · DISTRICT 8
Cobb et. Al. #23
Yoakum County · Prentice (San Andres) field · Injection · Vertical
Cobb ET. AL. #23 (API 42-501-35308) is a well in Yoakum County operated by Occidental Permian Ltd., completed January 19, 2011 and listed as injection on the RRC schedule.
The RRC has issued one drilling permit, issued February 16, 2006, permitted to 5,455 ft.
Completion filings report 6 formation tops, including Rustler, Yates, Seven Rivers, Queen.
Its lease has reported 369K barrels of oil and 577K mcf of gas since February 2005, last reporting in July 2026. The lease carries 8 wells, so these are lease totals, not this well alone.
It holds an active disposal or injection permit, with 53.7K barrels injected in the 12 months reported through November 2025.
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.Feb 16, 2006 |
- 5,455
- total depth, ft
- 1
- permits on file
- Feb 16, 2006
- last permit issued
- Jan 19, 2011
- completed
- 369K
- cumulative oil, bbl
- 577K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Feb 2005 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Jan 19, 2011
- 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 8 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Cobb et. Al. O-11-68752 | Prentice (San Andres) | Occidental Permian Ltd. | 8 | 369K | 577K | Feb 2005 – Jul 2026 |
Oil, barrels lease total
Last 12 months 11,521 · prior 12 9,741(+18%)
Gas, mcf lease total
Last 12 months 8,650 · prior 12 5,371(+61%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Occidental Permian Ltd.Feb 2005 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 613947-99 | Drill | Occidental Permian Ltd. | Feb 9, 2006 | Feb 16, 2006 | Aug 12, 2006 | 5,600 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — O-11-68752 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 3,582 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Rustler | 2,591 | 991 |
| Yates | 3,310 | 272 |
| Yates | 3,312 | 270 |
| Seven Rivers | 3,567 | 15 |
| Queen | 4,107 | -525 |
| Grayburg | 4,443 | -861 |
| Grayburg | 4,444 | -862 |
| San Andres | 4,640 | -1,058 |
| San Andres | 4,642 | -1,060 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 5,174 | 5,290 | Perforated |
| 5,174 | 5,346 | Perforated |
| 5,306 | 5,346 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 16 | 40 | 26 | 130 S |
| 8.625 | 2,597 | 12.25 | 1,100 S |
| 5.5 | 5,450 | 7.875 | 975 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 | Jan 5, 2026 | Dec 18, 2025 | — |
| 00 | Mar 3, 2009 | Aug 13, 2008 | — |
| 00 | May 22, 2007 | Oct 18, 2006 | Yes |
| 00 | Apr 27, 2007 | — | — |
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 42-501-35308 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-501-35308 → 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
- 53.7K
- bbl, last 12 reported months
- 2.08M
- bbl, all reported
- Nov 2025
- reported through
| UIC | Kind | Status | Permitted bbl/d | Max psi | Zone ft |
|---|---|---|---|---|---|
| 000096301 | H-1 Injection | Active | 1,065 | 2,000 | 4,800–6,000 |
MONTHLY INJECTED, BBL · H-10 · LAST 24 REPORTED MONTHS
Last 12 months 53,719 · prior 12 98,058(-45%)
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/50135308, documented in the API reference.