WELL · 42-461-34832 · DISTRICT 7
Cox 21 #1
Upton County · Blue Danube (Strawn) field · Vertical
Cox 21 #1 (API 42-461-34832) is a well in Upton County operated by Chevron Midcontinent L.P., completed September 2, 2005.
The RRC has issued 2 drilling permits between 2005 and 2006, permitted to 10,000 ft.
It was permitted by Pure Resources, L.P. and has since transferred to Chevron Midcontinent L.P. on the wellbore schedule.
Completion filings report 6 formation tops, including Glorieta, Spraberry, Wolfcamp, Pennsylvanian.
Its 2 leases have reported 45.3K barrels of oil and 98.4K mcf of gas since September 2005, last reporting in July 2026. The leases carry 2 wells, so these are lease totals, not this well alone.
Operator of record
Permitted by Pure Resources, L.P.; the EWA schedule now lists a different operator.
Midland, TX · P-5 Y, filed Jan 4, 2026 · 173 permits on file · (800) 231-0623
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Chevron Midcontinent L.P. |
| Production reports | BCP Resources, LLCthrough Mar 2026 |
| Latest permit | Pure Resources, L.P.Feb 22, 2006 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 10,000
- total depth, ft
- 2
- permits on file
- Feb 22, 2006
- last permit issued
- Sep 2, 2005
- completed
- 45.3K
- cumulative oil, bbl
- 98.4K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Sep 2005 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- OFF SCHEDULE
- Completed
- Sep 2, 2005
- 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 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Cox, W. W. "21" O-9-15962 | Spraberry (Trend Area) | BCP Resources, LLC | 1 | 40.3K | 77.9K | Apr 2006 – Jul 2026 |
| Cox "21" O-9-15826 | Blue Danube (Strawn) | Chevron Midcontinent, L.P. | 1 | 4.98K | 20.5K | Sep 2005 – Aug 2006 |
Oil, barrels lease total
Last 12 months 62 · prior 12 20(+210%)
Gas, mcf lease total
Last 12 months 0 · prior 12 0
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Pure Resources, L.P.Sep 2005 → Mar 2006
- 2Chevron Midcontinent, L.P.Apr 2006 → Nov 2018
- 3Hibernia Resources III, LLCDec 2018 → Mar 2022
- 4BCP Resources, LLCAug 2022 → Mar 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 613812-99 | Recompletion | Pure Resources, L.P. | Feb 8, 2006 | Feb 22, 2006 | Mar 7, 2006 | 9,900 |
| 560785-99 | Drill | Pure Resources, L.P. | Apr 19, 2005 | Apr 21, 2005 | Jun 8, 2005 | 10,000 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — O-9-15826 | — | — | — | — |
| — | — O-9-15962 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 2,575 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Glorieta | 4,500 | -1,925 |
| GlorietaGLORIETTA | 4,500 | -1,925 |
| Spraberry | 6,522 | -3,947 |
| Wolfcamp | 7,962 | -5,387 |
| PennsylvanianPENN DTRL | 9,017 | -6,442 |
| PennsylvanianPENN DTRL. | 9,017 | -6,442 |
| Strawn | 9,177 | -6,602 |
| Atoka | 9,500 | -6,925 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 7,993 | 8,654 | Perforated |
| 7,993 | 9,442 | Perforated |
| 9,214 | 9,442 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 13.375 | 480 | 16 | 275 S |
| 8.625 | 3,865 | 11 | 480 S |
| 5.5 | 9,895 | 7.875 | 1,135 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 | May 24, 2007 | Apr 2, 2007 | — |
| 00 | Oct 19, 2006 | Jun 22, 2006 | Yes |
| 00 | Jun 30, 2006 | Oct 27, 2005 | Yes |
| 00 | Feb 13, 2006 | Oct 27, 2005 | Yes |
| 00 | Dec 5, 2005 | — | — |
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 42-461-34832 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-461-34832 → scanned completion filings
Log images are in archives with no per-well link: the RRC's Neubus archive (2004 onward) and the University Lands library. then paste it into their search.
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/46134832, documented in the API reference.