WELL · 42-481-34772 · DISTRICT 3

Koonce Gas Unit #4

Y

Wharton County · Bob Alexander (Massive Wilcox) field · Producing  · Vertical

Koonce Gas Unit #4 (API 42-481-34772) is a well in Wharton County operated by Mountain V Texas LLC, completed October 26, 2005 and listed as producing on the RRC schedule.

The RRC has issued one drilling permit, issued July 13, 2005, permitted to 17,500 ft.

It was permitted by Transtexas Gas Corporation and has since transferred to Mountain V Texas LLC on the wellbore schedule.

Completion filings report 4 formation tops, including Frio, Jackson, Yegua, Top Massive Wilcox.

No lease production has been reported under this well’s leases.

Operator of record

Mountain V Texas LLC

Permitted by Transtexas Gas Corporation; the EWA schedule now lists a different operator.

Buckhannon, WV · P-5 Y, filed Jun 4, 2026 · (304) 472-1613

SOURCE · RRC EWA WELLBORE SCHEDULE

What each RRC source says

Wellbore scheduleMountain V Texas LLC
Production reportsMountain V Texas, LLCthrough Apr 2026
Latest permitTranstexas Gas CorporationJul 13, 2005

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

17,500
total depth, ft
1
permits on file
Jul 13, 2005
last permit issued
Oct 26, 2005
completed
0
cumulative oil, bbl
2.31M
cumulative gas, mcf

PRODUCTION FROM PDQ LEASE REPORTS · Oct 2005 THROUGH Jul 2026

Regulatory status · RRC wellbore file

Schedule
ON SCHEDULE
Completed
Oct 26, 2005
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; this well is the only one on it.Why →

LeaseFieldReporting operatorWellsOil, bblGas, mcfReported
Koonce Gas Unit G-3-214666Bob Alexander (Massive Wilcox)Mountain V Texas, LLC102.31MOct 2005 – Jul 2026

Gas, mcf lease total

Last 12 months 8,124 · prior 12 33,655(-76%)

02K4K202420252026

Chain of custody

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

  1. 1National Onshore LPOct 2005 → Mar 2008
  2. 2Sandridge Onshore, LLCApr 2008 → Jun 2014
  3. 3Fieldwood Onshore LLCJul 2014 → Jun 2016
  4. 4TMR Exploration, Inc.Jul 2016 → Sep 2025
  5. 5Mountain V Texas, LLCOct 2025 → Apr 2026

Permits

PermitTypeOperatorReceivedIssuedSpudDepth
603382-99DrillTranstexas Gas CorporationJul 13, 2005Jul 13, 2005Aug 3, 200517,500

Completions

CompletedLeaseFieldOperatorStatusDepth
—— G-3-214666————

Formation tops

As filed on W-2/G-1. Subsea from 116 ft elevation.Download CSV →

FormationMD ftSubsea
FrioBASE FRIO5,311-5,195
Jackson5,846-5,730
Yegua6,768-6,652
Top Massive Wilcox15,952-15,836

Perforations

Perforated and open-hole intervals.

FromToType
16,02716,736Perforated

Casing

Strings as reported, shallowest first.

Casing inSet atHole inCement
13.3752,52517.51,355 S
9.6258,32512.25620 S
5.517,3006.51,337 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 11, 2006Feb 27, 2006Yes
00Mar 20, 2006——

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/48134772, documented in the API reference.