TEXAS · WELLS · COCHRAN COUNTY · DEAN "C" LEASE · API 42-079-32095 · DISTRICT 7B

Dean C #3A

Plugged

Cochran County · Slaughter field  · Vertical

Dean C #3A (API 42-079-32095) is a plugged well in Cochran County, plugged April 5, 2018, last operated by Extex Operating Company.

The RRC has issued one drilling permit, issued April 29, 1985, permitted to 5,200 ft.

It was permitted by Mobil Producing TX. & N.M. Inc. and has since transferred to Extex Operating Company on the wellbore schedule.

Completion filings report 3 formation tops, including Mallet, 1st Slaughter, 2nd Slaughter.

Its lease has reported 133K barrels of oil and 165K mcf of gas since January 1993, last reporting volume in April 2026. The lease carries 14 wells, so these are lease totals, not this well alone.

Operator of record

Extex Operating Company

Permitted by Mobil Producing TX. & N.M. Inc.; the EWA schedule now lists a different operator.

Based in
Houston, TX
P-5 status
Active (A)
P-5 last filed
Jan 7, 2026
Permits on file
117
Phone
(713) 953-0824

SOURCE · RRC EWA WELLBORE SCHEDULE

What each RRC source says

Wellbore scheduleExtex Operating Company
Production reportsExtex Operating Companythrough Apr 2026
Latest permitMobil Producing TX. & N.M. Inc.Apr 29, 1985

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

5,200
total depth, ft
1
permits on file
Apr 29, 1985
last permit issued
Jul 13, 1985
completed
133K
cumulative oil, bbl
165K
cumulative gas, mcf

PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Apr 2026

Regulatory status · RRC wellbore file

Schedule
OFF SCHEDULE
Completed
Jul 13, 1985
Shut in
—
Plugged
Apr 5, 2018

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

LeaseFieldReporting operatorWellsOil, bblGas, mcfReported
Dean "C" O-11-5981SlaughterExtex Operating Company14133K165KJan 1993 – Apr 2026

Oil, barrels lease total

Last 12 months 530 · prior 12 676(-22%)

050100202420252026

Chain of custody

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

  1. 1Mobil Producing TX. & N.M. Inc.Jan 1993 → Dec 1994
  2. 2Coda Energy, Inc.Jan 1995 → Aug 1998
  3. 3Belco Energy Corp.Sep 1998 → Feb 2002
  4. 4Westport Oil and Gas Company, LPMar 2002 → Nov 2005
  5. 5Encore Operating, L.P.Dec 2005 → Aug 2009
  6. 6Encore Energy Partners Oper LLCSep 2009 → Mar 2012
  7. 7Vanguard Permian, LLCApr 2012 → Apr 2015
  8. 8Vanguard Operating, LLCMay 2015 → Jun 2019
  9. 9Grizzly OP of Delaware, LLCSep 2019 → Apr 2020
  10. 10Extex Operating CompanyMay 2020 → Apr 2026
  11. 11New Horizon Resources LLCJan 2022 → Sep 2025

Permits

PermitTypeOperatorReceivedIssuedSpudDepth
273437-99DrillMobil Producing TX. & N.M. Inc.Apr 10, 1985Apr 29, 1985—5,200

Completions

CompletedLeaseFieldOperatorStatusDepth
Jul 13, 1985Dean C O-11-5981SlaughterExtex Operating CompanyPlugged—

Formation tops

As filed on W-2/G-1. Subsea from 3,736 ft elevation.Download CSV →

FormationMD ftSubsea
Mallet4,956-1,220
1ST Slaughter4,998-1,262
2ND Slaughter5,057-1,321

Perforations

Perforated and open-hole intervals.

FromToType
4,9985,052Perforated

Casing

Strings as reported, shallowest first.

Casing inSet atHole inCement
8.62547912.25350 S
5.55,0877.8751,550 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
00Aug 13, 1985Aug 2, 1985—
00Aug 9, 1985——

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 filed since 2004 open from the RRC's log search for this well; none are loaded here for it.

Find logs withinmiles of this well:List →Map →

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/07932095, documented in the API reference.