TEXAS · WELLS · ARANSAS COUNTY · GIBSON/SIEN UNIT LEASE · API 42-007-30844 · DISTRICT 04

Gibson/Sien Unit #1

Shut in

Aransas County · McCampbell (Deep Frio Cons.) field · Temp Abandoned  · Vertical

Gibson/Sien Unit #1 (API 42-007-30844) is a well in Aransas County operated by Millennium Exploration CO. LLC, completed December 10, 1999 and listed as temp abandoned on the RRC schedule, shut in April 1, 2023.

The RRC has issued one drilling permit (amended once), issued October 15, 1999, permitted to 11,600 ft.

It was permitted by Walter Oil & Gas Corporation and has since transferred to Millennium Exploration CO. LLC on the wellbore schedule.

Completion filings report 3 formation tops, including Miocene (undifferentiated), Top Marg, Frio.

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

Operator of record

Millennium Exploration Co. LLC

Permitted by Walter Oil & Gas Corporation; the EWA schedule now lists a different operator.

Based in
San Antonio, TX
P-5 status
Active (A)
P-5 last filed
Dec 4, 2025
Permits on file
41
Phone
(210) 960-1000

SOURCE · RRC EWA WELLBORE SCHEDULE

What each RRC source says

Wellbore scheduleMillennium Exploration Co. LLC
Production reportsTexron Operating, LLCthrough Mar 2023
Latest permitWalter Oil & Gas CorporationOct 15, 1999

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

11,600
total depth, ft
2
permits on file
Oct 15, 1999
last permit issued
Dec 10, 1999
completed
0
cumulative oil, bbl
5.89M
cumulative gas, mcf

PRODUCTION FROM PDQ LEASE REPORTS · Dec 1999 THROUGH Jul 2026

Regulatory status · RRC wellbore file

Schedule
ON SCHEDULE
Completed
Dec 10, 1999
Shut in
Apr 1, 2023
Plugged
—

Operator's P-5 on the schedule: Active (A)

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
Gibson/Sien Unit G-4-176421McCampbell (Frio P, Middle)Millennium Exploration Co. LLC105.89MDec 1999 – 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. 1Walter Oil & Gas CorporationDec 1999 → Jun 2005
  2. 2Cabot Oil & Gas CorporationJul 2005 → Sep 2016
  3. 3Texas Independent Explor Ltd.Oct 2016 → Nov 2021
  4. 4Texron Operating, LLCMar 2022 → Mar 2023

Permits

PermitTypeOperatorReceivedIssuedSpudDepth
488574-97DrillWalter Oil & Gas CorporationMar 9, 2000Oct 15, 1999Oct 31, 199911,600
488574-99DrillWalter Oil & Gas CorporationOct 15, 1999Oct 15, 1999—12,500

Completions

CompletedLeaseFieldOperatorStatusDepth
Dec 10, 1999Gibson/Sien Unit G-4-176421McCampbell (Deep Frio Cons.)Millennium Exploration Co. LLCTemp Abandoned · shut in Apr 1, 202311,600

Formation tops

As filed on W-2/G-1. Subsea from 4 ft elevation.Download CSV →

FormationMD ftSubsea
Miocene (undifferentiated)BASE MIOCENE5,650-5,646
Top Marg6,597-6,593
FrioMIDDLE FRIO7,096-7,092

Perforations

Perforated and open-hole intervals.

FromToType
11,17511,231Perforated

Casing

Strings as reported, shallowest first.

Casing inSet atHole inCement
10.752,01014.751,192 S
7.6259,7409.875610 S
4.511,5876.75405 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
00May 11, 2000Jan 28, 2000Yes
00Apr 12, 2000——

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/00730844, documented in the API reference.