TEXAS · WELLS · GLASSCOCK COUNTY · CALVERLEY 9-4 LEASE · API 42-173-37320 · DISTRICT 7B
Calverley 9-4 #6H
Glasscock County · Spraberry (Trend Area) field · Shut In · Horizontal
Calverley 9-4 #6H (API 42-173-37320) is a horizontal well in Glasscock County operated by Cog Operating LLC, completed July 31, 2016 and listed as shut in on the RRC schedule, shut in April 1, 2026.
The RRC has issued one drilling permit, issued December 17, 2015, permitted to 8,085 ft.
It was permitted by Rsp Permian, LLC and has since transferred to Cog Operating LLC on the wellbore schedule.
Completion filings report 10 formation tops, including Santa Rosa, Yates, Seven Rivers, Queen.
Its lease has reported 3.71M barrels of oil and 21.7M mcf of gas since October 2015, last reporting volume in April 2026. The lease carries 13 wells, so these are lease totals, not this well alone.
Operator of record
Permitted by RSP Permian, LLC; the EWA schedule now lists a different operator.
- Based in
- Midland, TX
- P-5 status
- Active – Extension (X)
- P-5 last filed
- Jun 2, 2026
- Permits on file
- 4,568
- Phone
- (432) 683-7443
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | COG Operating LLC |
| Production reports | COG Operating LLCthrough Apr 2026 |
| Latest permit | RSP Permian, LLCDec 17, 2015 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 8,085
- total depth, ft
- 1
- permits on file
- Dec 17, 2015
- last permit issued
- Jul 31, 2016
- completed
- 3.71M
- cumulative oil, bbl
- 21.7M
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Oct 2015 THROUGH Apr 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Jul 31, 2016
- Shut in
- Apr 1, 2026
- 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 13 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Calverley 9-4 O-10-47633 | Spraberry (Trend Area) | COG Operating LLC | 13 | 3.71M | 21.7M | Oct 2015 – Apr 2026 |
Gas, mcf lease total
Last 12 months 863,498 · prior 12 1,040,847(-17%)
Oil, barrels lease total
Last 12 months 40,372 · prior 12 53,614(-25%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1RSP Permian, LLCOct 2015 → Jul 2018
- 2COG Operating LLCAug 2018 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 812746-99 | Drill | RSP Permian, LLC | Dec 16, 2015 | Dec 17, 2015 | Jan 30, 2016 | 12,000 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| Jul 31, 2016 | Calverley 9-4 O-10-47633 | Spraberry (Trend Area) | COG Operating LLC | Shut In · shut in Apr 1, 2026 | 8,085 |
Formation tops
As filed on W-2/G-1. Subsea from 2,643 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Santa Rosa | 1,010 | 1,633 |
| Yates | 2,115 | 528 |
| Seven Rivers | 2,335 | 308 |
| Queen | 2,747 | -104 |
| Grayburg | 3,603 | -960 |
| San AndresSAN ANDRES - HIGH FLOWS, H2S, CO | 3,687 | -1,044 |
| Clear ForkCLEARFORK | 4,980 | -2,337 |
| Wichita-AlbanyWICHITA ALBANY | 6,179 | -3,536 |
| Spraberry | 6,804 | -4,161 |
| Glorieta | — | — |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 8,089 | 17,926 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 13.375 | 494 | 17.5 | 530 S |
| 9.625 | 7,438 | 12.25 | 625 S |
| 5.5 | 18,018 | 8.5 | 2,015 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 | Sep 13, 2016 | Aug 24, 2016 | Yes |
Well logs
1 log loaded from the RRC's log index, the latest received Oct 14, 2016. Neutron. These are the logs loaded into Petrora from the Railroad Commission's inventories, not necessarily every log run on the well. The RRC holds the files; each opens from its log search for the well. The kind is the RRC's description of the log; the interval is the one filed for it.
Open the RRC's log search for this well ↗| Logas described | Files | Intervalft, as filed | Datereceived | SizeMB |
|---|---|---|---|---|
| NEUTRON POROSITYSpans Santa Rosa, Yates, Seven Rivers, Queen, Grayburg, San Andres, Clear Fork, Wichita-Albany, Spraberry | TIFF | 50 to 8,119 | Oct 14, 2016run May 22, 2016 | 6.63 |
"Spans" is by this well's own filed formation tops: a formation runs from its top to the next deeper top filed, and the deepest runs to the bottom of the log. Depths are measured along the wellbore, so on a horizontal the lateral counts in the formation it was landed in.
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 42-173-37320 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-173-37320 → scanned completion filings
The logs loaded for this well are under Well logs, with the RRC's log search 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/17337320, documented in the API reference.