WELL · 42-355-33969 · DISTRICT 4

Isensee #1

Y

Nueces County · Saxet ( 5 700 Frio) field · Producing  · Vertical

Isensee #1 (API 42-355-33969) is a well in Nueces County operated by Basin Oil & Gas Operating LLC, completed February 18, 2010 and listed as producing on the RRC schedule.

The RRC has issued one drilling permit (amended once), issued November 5, 2009, permitted to 7,500 ft.

It was permitted by Del Mar Exploration Company and has since transferred to Basin Oil & Gas Operating LLC on the wellbore schedule.

Completion filings report one formation top, including 5750 Zone.

Its lease has reported 59.2K barrels of oil and 56.4K mcf of gas since February 2010, last reporting in July 2026. The lease carries 2 wells, so these are lease totals, not this well alone.

Operator of record

Basin Oil & Gas Operating LLC

Permitted by Del Mar Exploration Company; the EWA schedule now lists a different operator.

Fort Worth, TX · P-5 Y, filed Feb 4, 2026 · 150 permits on file · (817) 820-8910

SOURCE · RRC EWA WELLBORE SCHEDULE

What each RRC source says

Wellbore scheduleBasin Oil & Gas Operating LLC
Production reportsBasin Oil & Gas Operating, LLCthrough Apr 2026
Latest permitDel Mar Exploration CompanyNov 5, 2009

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

7,500
total depth, ft
2
permits on file
Nov 5, 2009
last permit issued
Feb 18, 2010
completed
59.2K
cumulative oil, bbl
56.4K
cumulative gas, mcf

PRODUCTION FROM PDQ LEASE REPORTS · Feb 2010 THROUGH Jul 2026

Regulatory status · RRC wellbore file

Schedule
ON SCHEDULE
Completed
Feb 18, 2010
Shut in
—
Plugged
—

Operator's P-5 on the schedule: 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 2 wells in total, so volumes are shared.Why →

LeaseFieldReporting operatorWellsOil, bblGas, mcfReported
Isensee O-4-13592Saxet ( 5,700 Frio)Basin Oil & Gas Operating, LLC259.2K56.4KFeb 2010 – Jul 2026

Oil, barrels lease total

Last 12 months 1,410 · prior 12 977(+44%)

0100200300202420252026

Gas, mcf lease total

Last 12 months 0 · prior 12 56(-100%)

0510202420252026

Chain of custody

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

  1. 1Del Mar Exploration CompanyMar 2010 → Jul 2012
  2. 2Great Western Drilling CompanyAug 2012 → Oct 2024
  3. 3Basin Oil & Gas Operating, LLCNov 2024 → Apr 2026

Permits

PermitTypeOperatorReceivedIssuedSpudDepth
686922-98DrillDel Mar Exploration CompanyFeb 22, 2010Nov 5, 2009Jan 26, 20107,500
686922-99DrillDel Mar Exploration CompanyNov 3, 2009Nov 5, 2009—7,500

Completions

CompletedLeaseFieldOperatorStatusDepth
—— O-4-13592————

Formation tops

As filed on W-2/G-1. Subsea from 42 ft elevation.Download CSV →

FormationMD ftSubsea
5750 Zone5,743-5,701

Perforations

Perforated and open-hole intervals.

FromToType
5,7435,746Perforated

Casing

Strings as reported, shallowest first.

Casing inSet atHole inCement
13.37531117.54,832 S
9.6251,51912.25383 S
5.57,4848.751,600 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
00Jun 12, 2010Mar 19, 2010Yes
00Mar 29, 2010——

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/35533969, documented in the API reference.