WELL · 42-173-36370 · DISTRICT 8

Calverley 9 #2

WaterPlugged

Glasscock County · Spraberry (Trend Area) field  · Vertical

Calverley 9 #2 (API 42-173-36370) is a plugged well in Glasscock County, plugged January 4, 2021, last operated by Cog Operating LLC.

The RRC has issued 2 drilling permits between 2014 and 2022, permitted to 12,000 ft.

It was permitted by Aqua Terra Permian, LLC and has since transferred to Cog Operating LLC on the wellbore schedule.

Completion filings report 11 formation tops, including Yates, Queen, San Andres, Spraberry.

Its 2 leases have reported 91.5K barrels of oil and 337K mcf of gas since April 2014, last reporting in July 2026. The leases carry 4 wells, so these are lease totals, not this well alone.

It holds an active disposal or injection permit, with 2.97M barrels injected in the 12 months reported through January 2026; TexNet located 20 M2+ earthquakes within 10 km over the last two years.

Operator of record

COG Operating LLC

Permitted by Aqua Terra Permian, LLC; the EWA schedule now lists a different operator.

Midland, TX · P-5 Y, filed May 4, 2026 · 4,568 permits on file · (432) 853-2355

SOURCE · RRC EWA WELLBORE SCHEDULE

What each RRC source says

Wellbore scheduleCOG Operating LLC
Production reportsCOG Operating LLCthrough Aug 2023
Latest permitAqua Terra Permian, LLCNov 22, 2022

The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.

12,000
total depth, ft
2
permits on file
Nov 22, 2022
last permit issued
Jul 15, 2014
completed
91.5K
cumulative oil, bbl
337K
cumulative gas, mcf

PRODUCTION FROM PDQ LEASE REPORTS · Apr 2014 THROUGH Jul 2026

Regulatory status · RRC wellbore file

Schedule
OFF SCHEDULE
Completed
Jul 15, 2014
Shut in
—
Plugged
Jan 4, 2021

Surface location

31.803742, -101.724961

OpenStreetMap → ·  Google Maps →

Permit surface location from the RRC GIS record, in Glasscock County.

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 4 wells in total, so volumes are shared.Why →

LeaseFieldReporting operatorWellsOil, bblGas, mcfReported
Shelby SWD O-10-60921Spraberry (Trend Area)Aqua Terra Permian, LLC100Feb 2023 – Jul 2026
Calverley 9 O-10-45162Spraberry (Trend Area)COG Operating LLC391.5K337KApr 2014 – Mar 2024

Gas, mcf lease total

Last 12 months 0 · prior 12 0

05001K1.5K202420252026

Oil, barrels lease total

Last 12 months 0 · prior 12 0

0204060202420252026

Chain of custody

Every operator that reported production on this well's lease, in order.

  1. 1Adventure Expl Partners II, LLCApr 2014 → Aug 2014
  2. 2RSP Permian, LLCSep 2014 → Jul 2018
  3. 3COG Operating LLCAug 2018 → Aug 2023

Permits

PermitTypeOperatorReceivedIssuedSpudDepth
885924-99ReenterAqua Terra Permian, LLCNov 21, 2022Nov 22, 2022Dec 7, 20225,400
778823-99DrillAdventure Expl Partners II, LLCFeb 3, 2014Feb 24, 2014Feb 28, 201412,000

Completions

CompletedLeaseFieldOperatorStatusDepth
—— O-10-45162————
—— O-10-60921————

Formation tops

As filed on W-2/G-1. Subsea from 2,650 ft elevation.Download CSV →

FormationMD ftSubsea
Yates2,130520
Queen2,778-128
San AndresSAN ANDRES - HIGH FLOWS, H2S, CO3,380-730
Spraberry6,419-3,769
Clear ForkCLEARFORK——
Glorieta——
Grayburg——
Rustler——
Santa Rosa——
Seven Rivers——
Wichita-AlbanyWICHITA ALBANY——

Perforations

Perforated and open-hole intervals.

FromToType
3,4044,690Perforated
8,42511,158Perforated

Casing

Strings as reported, shallowest first.

Casing inSet atHole inCement
13.37542217.5440 S
8.6254,021111,290 S
5.511,2827.8751,440 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 →

SuffixFiledW-2 / G-1 dateLogs referenced
00Jul 22, 2024Mar 22, 2024—
00Sep 30, 2014Sep 15, 2014Yes

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.

Log images are in archives with no per-well link: the RRC's Neubus archive (2004 onward). then paste it into their search.

Nearby wells and their tops

NEAREST 8 LOCATED WELLS WITH TOPS · WITHIN 16 KM

Draw a cross-section

This well's tops beside its 5 nearest neighbours, subsea-aligned so they line up regardless of surface terrain.

Open the cross-section →

Bigby South a 10-1542-173-38735

0.7 KM · Pioneer Natural Res. USA, Inc. · Section with this well →

Santa Rosa8061,855
Rustler1,3581,303
Yates2,194467
Seven Rivers2,454207
Queen3,091-430
Grayburg3,556-895
San Andres3,727-1,066
Clear Fork5,692-3,031

10 TOPS · FIRST 8

Bigby South B 10-1542-173-38737

0.7 KM · Pioneer Natural Res. USA, Inc. · Section with this well →

Santa Rosa8061,855
Rustler1,3511,310
Yates2,199462
Seven Rivers2,459202
Queen3,094-433
Grayburg3,559-898
San Andres3,735-1,074
Clear Fork5,670-3,009

10 TOPS · FIRST 8

Bigby South a 10-1542-173-38736

0.7 KM · Pioneer Natural Res. USA, Inc. · Section with this well →

Santa Rosa8061,855
Rustler1,3551,306
Yates2,199462
Seven Rivers2,456205
Queen3,100-439
Grayburg3,563-902
San Andres3,739-1,078
Clear Fork5,684-3,023

10 TOPS · FIRST 8

Bigby South D 10-1542-173-38739

0.7 KM · Pioneer Natural Res. USA, Inc. · Section with this well →

Santa Rosa8061,855
Rustler1,3721,289
Yates2,193468
Seven Rivers2,449212
Queen3,092-431
Grayburg3,550-889
San Andres3,724-1,063
Clear Fork5,680-3,019

10 TOPS · FIRST 8

Bigby North a 10-342-173-38302

0.8 KM · DE3 Operating LLC · Section with this well →

Santa Rosa1,0001,624
Rustler1,3581,266
Yates2,193431
Seven Rivers2,445179
Glorieta2,450174
Queen3,127-503
Grayburg3,627-1,003
San Andres3,740-1,116

10 TOPS · FIRST 8

Bigby North a 10-342-173-38303

0.8 KM · DE3 Operating LLC · Section with this well →

Santa Rosa1,0001,624
Rustler1,3691,255
Yates2,191433
Seven Rivers2,430194
Glorieta2,450174
Queen3,127-503
Grayburg3,625-1,001
San Andres3,734-1,110

10 TOPS · FIRST 8

Bigby North B 10-342-173-38304

0.8 KM · DE3 Operating LLC · Section with this well →

Santa Rosa1,0001,624
Rustler1,3491,275
Yates2,191433
Seven Rivers2,443181
Glorieta2,450174
Queen3,125-501
Grayburg3,625-1,001
San Andres3,734-1,110

10 TOPS · FIRST 8

Bigby North C 10-342-173-38305

0.8 KM · DE3 Operating LLC · Section with this well →

Santa Rosa1,0001,624
Rustler1,3521,272
Yates2,191433
Seven Rivers2,447177
Glorieta2,450174
Queen3,127-503
Grayburg3,629-1,005
San Andres3,734-1,110

10 TOPS · FIRST 8

Beyond the permit record

RRC UIC permits · H-10 reported volumes

Injection

2.97M
bbl, last 12 reported months
12M
bbl, all reported
Jan 2026
reported through
UICKindStatusPermitted bbl/dMax psiZone ft
000125590W-14 DisposalActive20,0001,7003,400–4,700

MONTHLY INJECTED, BBL · H-10 · LAST 24 REPORTED MONTHS

Last 12 months 2,972,889 · prior 12 4,679,452(-36%)

0500K1M1.5M20252026

TexNet catalog via USGS

Seismicity near this well

20
M2+ events within 10 km, last 2 years
M3.3
largest

A proximity count, not an attribution. How to read 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/17336370, documented in the API reference.