WELL · 42-702-30166 · DISTRICT 4

State Lease 74581 #1

Y

Mustang IS-LB County · Wildcat field · SWR-10-Well  · Vertical

State Lease 74581 #1 (API 42-702-30166) is a well in Mustang IS-LB County operated by Texas Offshore Operations LLC, completed July 11, 1998 and listed as swr-10-well on the RRC schedule.

The RRC has issued 2 drilling permits between 1981 and 1998, permitted to 14,500 ft.

It was permitted by Hunt Oil Company and has since transferred to Texas Offshore Operations LLC on the wellbore schedule.

Completion filings report 6 formation tops, including Miocene (undifferentiated), Marg Howei, Cib Haz Sd, Marg Tex Upper Sd.

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

Operator of record

Texas Offshore Operations LLC

Permitted by Hunt Oil Company; the EWA schedule now lists a different operator.

Farmers Brnch, TX · P-5 Y, filed Apr 4, 2026 · (469) 867-2095

SOURCE · RRC EWA WELLBORE SCHEDULE

What each RRC source says

Wellbore scheduleTexas Offshore Operations LLC
Production reportsTexas Offshore Operations, LLCthrough Oct 2016
Latest permitHunt Oil CompanyAug 19, 1998

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

14,500
total depth, ft
2
permits on file
Aug 19, 1998
last permit issued
Jul 11, 1998
completed
0
cumulative oil, bbl
8.51M
cumulative gas, mcf

PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Jul 2026

Regulatory status · RRC wellbore file

Schedule
ON SCHEDULE
Completed
Jul 11, 1998
Shut in
—
Plugged
—

Operator's P-5 on the schedule: Delinquent

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 2 leases this well is completed on; they carry 2 wells in total, so volumes are shared.Why →

LeaseFieldReporting operatorWellsOil, bblGas, mcfReported
State Lease 74581 G-4-96886Block 772 (Frio, Middle C)Texas Offshore Operations, LLC108.51MJan 1993 – Jul 2026
State Lease 74581 G-4-169488WildcatTexas Offshore Operations, LLC100Jul 1998 – Jul 2026

No volumes reported on these leases in the last three years.

Chain of custody

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

  1. 1Hunt Oil CompanyJan 1993 → Mar 2000
  2. 2Llog Exploration Offshore, Inc.Apr 2000 → Mar 2001
  3. 3Amerada Hess CorporationApr 2001 → Jun 2003
  4. 4Anadarko Petroleum CorporationJul 2003 → Apr 2004
  5. 5Maritech Resources, Inc.May 2004 → Nov 2009
  6. 6Coastland Operations, LLCDec 2009 → Sep 2012
  7. 7Texas Offshore Operations, LLCOct 2012 → Oct 2016

Permits

PermitTypeOperatorReceivedIssuedSpudDepth
478435-99RecompletionHunt Oil CompanyAug 3, 1998Aug 19, 1998Jul 8, 199813,220
107330-99DrillHunt Oil CompanyFeb 2, 1981Feb 2, 1981Mar 26, 198114,500

Completions

CompletedLeaseFieldOperatorStatusDepth
—— G-4-96886————
—— G-4-169488————

Formation tops

As filed on W-2/G-1. Subsea from 72 ft elevation.Download CSV →

FormationMD ftSubsea
Miocene (undifferentiated)MIOCENE7,090-7,018
Marg Howei9,000-8,928
Cib Haz SD10,800-10,728
Marg Tex Upper SD12,140-12,068
FrioFRIO STRAY SD12,730-12,658
FrioFRIO STRAY SDS12,730-12,658
M. Frio SDS12,990-12,918

Perforations

Perforated and open-hole intervals.

FromToType
12,73012,736Perforated
12,74912,766Perforated
12,77812,782Perforated
12,78612,796Perforated
12,84212,848Perforated
12,85612,867Perforated
12,87212,886Perforated
12,99313,152Perforated

Casing

Strings as reported, shallowest first.

Casing inSet atHole inCement
30236——
20813261,300 S
13.3753,59217.51,953 S
9.6258,56012.251,331 S
711,6208.51,100 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
00Sep 4, 1998Jul 20, 1998—
00Aug 31, 1998——
00Jan 12, 1984Sep 15, 1981—

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/70230166, documented in the API reference.