WELL · 42-409-32970 · DISTRICT 4

Jostes #5

Y

San Patricio County · Mathis North (2780) field · Shut IN  · Vertical

Jostes #5 (API 42-409-32970) is a well in San Patricio County operated by Sun Exploration Inc., completed May 19, 2012 and listed as shut in on the RRC schedule.

The RRC has issued one drilling permit (amended once), issued December 9, 2011, permitted to 3,300 ft.

It was permitted by Mortimer Production Company and has since transferred to Sun Exploration Inc. on the wellbore schedule.

Completion filings report one formation top, including Het 1.

Its lease has reported 76.5K barrels of oil and 2.3K mcf of gas since April 2003, last reporting in July 2026. The lease carries 2 wells, so these are lease totals, not this well alone.

Operator of record

Sun Exploration Inc.

Permitted by Mortimer Production Company; the EWA schedule now lists a different operator.

Alice, TX · P-5 Y, filed Aug 4, 2025 · 1 permits on file · (361) 227-7710

SOURCE · RRC EWA WELLBORE SCHEDULE

What each RRC source says

Wellbore scheduleSun Exploration Inc.
Production reportsSun Exploration, Inc.through Jan 2026
Latest permitMortimer Production CompanyDec 9, 2011

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

3,300
total depth, ft
2
permits on file
Dec 9, 2011
last permit issued
May 19, 2012
completed
76.5K
cumulative oil, bbl
2.3K
cumulative gas, mcf

PRODUCTION FROM PDQ LEASE REPORTS · Apr 2003 THROUGH Jul 2026

Regulatory status · RRC wellbore file

Schedule
ON SCHEDULE
Completed
May 19, 2012
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
Jostes O-4-13151Mathis, North (2780)Sun Exploration, Inc.276.5K2.3KApr 2003 – Jul 2026

Oil, barrels lease total

Last 12 months 9 · prior 12 55(-84%)

02040202420252026

Chain of custody

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

  1. 1Mortimer Exploration CompanyApr 2003 → Sep 2003
  2. 2Mortimer Production CompanyOct 2003 → Oct 2016
  3. 3Sun Exploration, Inc.Nov 2016 → Jan 2026

Permits

PermitTypeOperatorReceivedIssuedSpudDepth
729443-98DrillMortimer Production CompanyMay 23, 2012Dec 9, 2011Dec 19, 20113,300
729443-99DrillMortimer Production CompanyDec 5, 2011Dec 9, 2011—3,300

Completions

CompletedLeaseFieldOperatorStatusDepth
—— O-4-13151————

Formation tops

As filed on W-2/G-1. Subsea from 197 ft elevation.Download CSV →

FormationMD ftSubsea
Het 12,485-2,288

Perforations

Perforated and open-hole intervals.

FromToType
2,7402,747Perforated
2,7502,760Perforated

Casing

Strings as reported, shallowest first.

Casing inSet atHole inCement
8.62587112.25310 S
5.53,3007.875395 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
00Nov 5, 2012Jun 14, 2012—
00Jul 27, 2012May 23, 2012Yes

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/40932970, documented in the API reference.