TEXAS · WELLS · HUTCHINSON COUNTY · COCKRELL RANCH T-K A&B LEASE · API 42-233-33157 · DISTRICT 08

Cockrell Ranch T-K A&b #13

Shut in

Hutchinson County · Panhandle Hutchinson County Fld. field · Shut In  · Vertical

Cockrell Ranch T-K A&B #13 (API 42-233-33157) is a well in Hutchinson County operated by Large Operating LLC, completed November 29, 2007 and listed as shut in on the RRC schedule, shut in November 1, 2007.

The RRC has issued one drilling permit, issued March 1, 2007, permitted to 3,230 ft.

It was permitted by WO Operating Company and has since transferred to Large Operating LLC on the wellbore schedule.

Completion filings report 2 formation tops, including Brown Dolomite, White Dolomite.

Its lease has reported 168K barrels of oil and 757K mcf of gas since January 1993, with no volume in the three years through April 2026. The lease carries 207 wells, so these are lease totals, not this well alone.

Operator of record

Large Operating LLC

Permitted by WO Operating Company; the EWA schedule now lists a different operator.

Based in
Stinnett, TX
P-5 status
Active (A)
P-5 last filed
Oct 17, 2025
Permits on file
2
Phone
(212) 798-1320

SOURCE · RRC EWA WELLBORE SCHEDULE

What each RRC source says

Wellbore scheduleLarge Operating LLC
Production reportsLarge Operating LLCthrough Nov 2016
Latest permitWO Operating CompanyMar 1, 2007

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

3,230
total depth, ft
1
permits on file
Mar 1, 2007
last permit issued
Nov 29, 2007
completed
168K
cumulative oil, bbl
757K
cumulative gas, mcf

PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Nov 2016

Regulatory status · RRC wellbore file

Schedule
ON SCHEDULE
Completed
Nov 29, 2007
Shut in
Nov 1, 2007
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; they carry 207 wells in total, so volumes are shared.Why →

LeaseFieldReporting operatorWellsOil, bblGas, mcfReported
Cockrell Ranch T-K A&b O-14-1024Panhandle Hutchinson County Fld.Large Operating LLC207168K757KJan 1993 – Nov 2016

No volumes reported on these leases in the last three years.

Chain of custody

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

  1. 1Enerex Supply, Inc.Jan 1993 → Nov 1993
  2. 2WO Operating CompanyDec 1993 → Nov 2016

Permits

PermitTypeOperatorReceivedIssuedSpudDepth
633903-99DrillWO Operating CompanyFeb 20, 2007Mar 1, 2007Sep 15, 20074,000

Completions

CompletedLeaseFieldOperatorStatusDepth
Nov 29, 2007Cockrell Ranch T-K A&b O-14-1024Panhandle Hutchinson County Fld.Large Operating LLCShut In · shut in Nov 1, 20073,230

Formation tops

As filed on W-2/G-1. Subsea from 3,003 ft elevation.Download CSV →

FormationMD ftSubsea
Brown Dolomite2,788215
White Dolomite3,019-16

Perforations

Perforated and open-hole intervals.

FromToType
2,8842,996Perforated

Casing

Strings as reported, shallowest first.

Casing inSet atHole inCement
8.62540412.25250 S
5.53,2237.875130 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 →

SuffixRRC record dateW-2 / G-1 dateLogs referenced
00May 6, 2008Apr 4, 2008Yes
00May 1, 2008——

Well logs

1 log loaded from the RRC's log index, the latest received Sep 15, 2008. 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 describedFiles Intervalft, as filedDatereceivedSizeMB
NEUTRON POROSITYSpans Brown Dolomite, White DolomiteTIFF2,150 to 3,172Sep 15, 2008run Sep 25, 20070.43

"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.

Find logs withinmiles of this well:List →Map →

Search the well logs loaded into Petrora →

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.

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/23333157, documented in the API reference.