WELL · 42-417-39400 · DISTRICT 7

Cook Ranch 88 #121

Y

Shackelford County · Cook Ranch field · Injection  · Vertical

Cook Ranch 88 #121 (API 42-417-39400) is a well in Shackelford County operated by Stasney Well Service LLC, completed October 25, 2013 and listed as injection on the RRC schedule.

The RRC has issued one drilling permit, issued May 14, 2013, permitted to 2,000 ft.

Completion filings report 5 formation tops, including Dothan Ls, Noodle Creek Ls, Tannehill, Saddlecreek Ls.

Its lease has reported 114K barrels of oil and 44.7K mcf of gas since July 2009, last reporting in July 2026. The lease carries 33 wells, so these are lease totals, not this well alone.

It holds an active disposal or injection permit, with 16.7K barrels injected in the 12 months reported through June 2025.

Operator of record

Stasney Well Service LLC

Albany, TX · P-5 Y, filed Nov 4, 2025 · 305 permits on file · (325) 669-5843

SOURCE · RRC EWA WELLBORE SCHEDULE

What each RRC source says

Wellbore scheduleStasney Well Service LLC
Production reportsStasney Well Service, LLCthrough Apr 2026
Latest permitStasney Well Service, LLCMay 14, 2013
2,000
total depth, ft
1
permits on file
May 14, 2013
last permit issued
Oct 25, 2013
completed
114K
cumulative oil, bbl
44.7K
cumulative gas, mcf

PRODUCTION FROM PDQ LEASE REPORTS · Jul 2009 THROUGH Jul 2026

Regulatory status · RRC wellbore file

Schedule
ON SCHEDULE
Completed
Oct 25, 2013
Shut in
—
Plugged
—

Operator's P-5 on the schedule: Active

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

LeaseFieldReporting operatorWellsOil, bblGas, mcfReported
Cook Ranch 88 O-8-30364Cook RanchStasney Well Service, LLC33114K44.7KJul 2009 – Jul 2026

Oil, barrels lease total

Last 12 months 2,405 · prior 12 2,372(+1%)

0200400202420252026

Chain of custody

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

  1. 1Stasney, H. R. & Sons, Ltd.Jul 2009 → May 2011
  2. 2Stasney Well Service, LLCJun 2011 → Apr 2026

Permits

PermitTypeOperatorReceivedIssuedSpudDepth
762297-99DrillStasney Well Service, LLCMay 8, 2013May 14, 2013Sep 26, 20132,000

Completions

CompletedLeaseFieldOperatorStatusDepth
—— O-8-30364————

Formation tops

As filed on W-2/G-1. Subsea from 1,707 ft elevation.Download CSV →

FormationMD ftSubsea
Dothan LS974733
Noodle Creek LS1,027680
TannehillTANNEHILL LS1,182525
Saddlecreek LS1,294413
Crystal Falls LS1,401306

Perforations

Perforated and open-hole intervals.

FromToType
1,3731,377Perforated

Casing

Strings as reported, shallowest first.

Casing inSet atHole inCement
8.625731160 S
4.51,4346260 S
4.51,4346.75260 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 11, 2014Mar 6, 2014—
00Jan 6, 2014Dec 13, 2013Yes

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.

Beyond the permit record

RRC UIC permits · H-10 reported volumes

Injection

16.7K
bbl, last 12 reported months
133K
bbl, all reported
Jun 2025
reported through
UICKindStatusPermitted bbl/dMax psiZone ft
000109494H-1 InjectionActive1,0006861,373–1,377

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

Last 12 months 16,718 · prior 12 11,639(+44%)

01K2K3K20242025

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/41739400, documented in the API reference.