TEXAS · WELLS · GLASSCOCK COUNTY · COX 21-16 (ALLOC-H) LEASE · API 42-173-37239 · DISTRICT 7B
Cox 21-16 (Alloc-H) #8NU
Glasscock County · Garden City S. (Wolfcamp) field · Producing · Horizontal
Cox 21-16 (Alloc-H) #8NU (API 42-173-37239) is a horizontal well in Glasscock County operated by Crescent Energy Operating LLC, completed March 30, 2016 and listed as producing on the RRC schedule.
The RRC has issued one drilling permit, issued August 26, 2015, permitted to 7,201 ft.
It was permitted by Laredo Petroleum, Inc. and has since transferred to Crescent Energy Operating LLC on the wellbore schedule.
Completion filings report 10 formation tops, including Santa Rosa, Yates, Seven Rivers, Queen.
Its lease has reported 206K barrels of oil and 2.59M mcf of gas since March 2016, last reporting volume in April 2026.
Operator of record
Permitted by Laredo Petroleum, Inc.; the EWA schedule now lists a different operator.
- Based in
- Houston, TX
- P-5 status
- Active (A)
- P-5 last filed
- Aug 28, 2025
- Permits on file
- 54
- Phone
- (713) 337-4600
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Crescent Energy Operating LLC |
| Production reports | Crescent Energy Operating, LLCthrough Apr 2026 |
| Latest permit | Laredo Petroleum, Inc.Aug 26, 2015 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 7,201
- total depth, ft
- 1
- permits on file
- Aug 26, 2015
- last permit issued
- Mar 30, 2016
- completed
- 206K
- cumulative oil, bbl
- 2.59M
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Apr 2016 THROUGH Apr 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Mar 30, 2016
- Shut in
- —
- Plugged
- —
Operator's P-5 on the schedule: Active – Extension (X)
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; this well is the only one on it.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Cox 21-16 (Alloc-H) O-10-47804 | Garden City, S. (Wolfcamp) | Crescent Energy Operating, LLC | 1 | 206K | 2.59M | Mar 2016 – Apr 2026 |
Gas, mcf lease total
Last 12 months 102,209 · prior 12 223,911(-54%)
Oil, barrels lease total
Last 12 months 1,543 · prior 12 3,346(-54%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Laredo Petroleum, Inc.Apr 2016 → Jan 2023
- 2Vital Energy, Inc.Feb 2023 → Dec 2025
- 3Crescent Energy Operating, LLCJan 2026 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 809468-99 | Drill | Laredo Petroleum, Inc. | Aug 14, 2015 | Aug 26, 2015 | Nov 11, 2015 | 12,000 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| Mar 30, 2016 | Cox 21-16 (Alloc-H) O-10-47804 | Garden City S. (Wolfcamp) | Crescent Energy Operating LLC | Producing | 7,201 |
Formation tops
As filed on W-2/G-1. Subsea from 2,693 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Santa Rosa | 417 | 2,276 |
| Yates | 1,610 | 1,083 |
| Seven Rivers | 1,714 | 979 |
| Queen | 2,022 | 671 |
| Grayburg | 2,197 | 496 |
| San AndresSAN ANDRES - HIGH FLOWS, H2S, CO | 2,327 | 366 |
| Glorieta | 3,727 | -1,034 |
| Clear ForkCLEARFORK | 4,352 | -1,659 |
| Spraberry | 5,522 | -2,829 |
| Wichita-AlbanyWICHITA ALBANY | 5,522 | -2,829 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 7,461 | 17,397 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 13.375 | 554 | 17.5 | 550 S |
| 9.625 | 6,455 | 12.25 | 1,335 S |
| 5.5 | 17,420 | 8.5 | 1,555 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. The record date is the RRC's own date on the record, not the day the report was filed: 462,034 of the state's filings carry 1984-01-12. About these reports →
| Suffix | RRC record date | W-2 / G-1 date | Logs referenced |
|---|---|---|---|
| 00 | Aug 1, 2016 | Jun 22, 2016 | 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 42-173-37239 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-173-37239 → scanned completion filings
Log images filed since 2004 open from the RRC's log search for this well; none are loaded here for 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/17337239, documented in the API reference.