WELL · 42-497-32663 · DISTRICT 9

Mansfield B #3

N

Wise County · Younger W (Caddo Congl. LO F) field  · Vertical

Mansfield B #3 (API 42-497-32663) is a well in Wise County operated by Extech Operating LLC, completed November 10, 2007.

The RRC has issued 2 drilling permits between 1983 and 2007, permitted to 6,200 ft.

It was permitted by Glen D. Gonzenbach, LLC and has since transferred to Extech Operating LLC on the wellbore schedule.

Completion filings report 3 formation tops, including Strawn, Bryson, Caddo.

Its 3 leases have reported 1.01K barrels of oil and 589K mcf of gas since January 1993, last reporting in July 2026. The leases carry 3 wells, so these are lease totals, not this well alone.

Operator of record

Extech Operating LLC

Permitted by Glen D. Gonzenbach, LLC; the EWA schedule now lists a different operator.

Fort Worth, TX · P-5 Y, filed Jan 4, 2026 · 17 permits on file · (940) 782-4315

SOURCE · RRC EWA WELLBORE SCHEDULE

What each RRC source says

Wellbore scheduleExtech Operating LLC
Production reportsExtech Operating, LLCthrough Apr 2026
Latest permitGlen D. Gonzenbach, LLCNov 6, 2007

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

6,200
total depth, ft
2
permits on file
Nov 6, 2007
last permit issued
Nov 10, 2007
completed
1.01K
cumulative oil, bbl
589K
cumulative gas, mcf

PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Jul 2026

Regulatory status · RRC wellbore file

Schedule
OFF SCHEDULE
Completed
Nov 10, 2007
Shut in
—
Plugged
—

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 3 leases this well is completed on; they carry 3 wells in total, so volumes are shared.Why →

LeaseFieldReporting operatorWellsOil, bblGas, mcfReported
Mansfield "B" G-13-299795Younger, W (Caddo Congl. LO F)Extech Operating, LLC1012.6KJul 2025 – Jul 2026
Mansfield "B" O-13-30891Younger, W (Caddo Congl. LO F)Extech Operating, LLC11.01K282KNov 2007 – Nov 2025
Mansfield "B" G-13-126487Younger, W (Caddo Congl. LO F)Cobra Oil & Gas Corporation10295KJan 1993 – Aug 2007

Gas, mcf lease total

Last 12 months 13,048 · prior 12 557(+2243%)

01K2K202420252026

Chain of custody

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

  1. 1Cobra Oil & Gas CorporationJan 1993 → Jul 2007
  2. 2Glen D. Gonzenbach, LLCNov 2007 → Sep 2016
  3. 3Gonzenbach Oil & Gas, LLCMar 2017 → Dec 2019
  4. 4Extech Operating, LLCJan 2020 → Apr 2026

Permits

PermitTypeOperatorReceivedIssuedSpudDepth
648652-99ReenterGlen D. Gonzenbach, LLCOct 30, 2007Nov 6, 2007Nov 8, 20076,200
217626-99DrillCobra Oil & Gas CorporationOct 17, 1983Oct 19, 1983Nov 19, 19836,200

Completions

CompletedLeaseFieldOperatorStatusDepth
—— G-13-126487————
—— G-13-299795————
—— O-13-30891————

Formation tops

As filed on W-2/G-1. Subsea from 1,039 ft elevation.Download CSV →

FormationMD ftSubsea
Strawn2,044-1,005
Bryson3,660-2,621
Caddo5,620-4,581
CaddoCADDO CONGL.5,770-4,731

Perforations

Perforated and open-hole intervals.

FromToType
5,7705,775Perforated
5,7805,788Perforated

Casing

Strings as reported, shallowest first.

Casing inSet atHole inCement
8.62558812.25400 S
4.55,9467.875370 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
00Aug 28, 2025Jul 8, 2025Yes
00Jan 29, 2008Nov 20, 2007Yes
00Jan 17, 2008——
00May 9, 1988Jan 28, 1988—
00Apr 13, 1988——
00Feb 27, 1984Feb 10, 1984—
00Feb 17, 1984Feb 10, 1984—

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.

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/49732663, documented in the API reference.