WELL · 42-409-30505 · DISTRICT 4

City of Portland Gas Unit C #4A

Plugged

San Patricio County · Portland W. (F-18) field  · Directional

City Of Portland Gas Unit C #4A (API 42-409-30505) is a plugged well in San Patricio County, plugged June 1, 2009, last operated by Mission River Systems Inc..

The RRC has issued one drilling permit, issued May 23, 1994, permitted to 11,500 ft.

It was permitted by Bass Enterprises Production CO. and has since transferred to Mission River Systems Inc. on the wellbore schedule.

Completion filings report 12 formation tops, including F-8, F-9, F-14, F-15.

Operator of record

Mission River Systems Inc.

Permitted by Bass Enterprises Production Co.; the EWA schedule now lists a different operator.

Corpus Chrsti, TX · P-5 Y, filed Sep 4, 2025 · 26 permits on file · (361) 774-6000

SOURCE · RRC EWA WELLBORE SCHEDULE

What each RRC source says

Wellbore scheduleMission River Systems Inc.
Production reportsMission River Systems, Inc.through Sep 1999
Latest permitBass Enterprises Production Co.May 23, 1994

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

11,500
total depth, ft
1
permits on file
May 23, 1994
last permit issued
Jul 15, 1994
completed
0
cumulative oil, bbl
3.78K
cumulative gas, mcf

PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH May 2009

Regulatory status · RRC wellbore file

Schedule
OFF SCHEDULE
Completed
Jul 15, 1994
Shut in
—
Plugged
Jun 1, 2009

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
City of Portland Gas Unit C G-4-150615Portland, W. (F-18)Mission River Systems, Inc.103.78KJul 1994 – May 2009
City of Portland G.U. -C- G-4-66253Portland, N. (Commonwealth SerieBell, Kelly Inc.100Jan 1993 – Jul 1994

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. 1Bell, Kelly Inc.Jul 1994 → Dec 1994
  2. 2Mission River Systems, Inc.Sep 1999 → Sep 1999

Permits

PermitTypeOperatorReceivedIssuedSpudDepth
424066-99RecompletionBass Enterprises Production Co.May 19, 1994May 23, 1994Apr 12, 199411,500

Completions

CompletedLeaseFieldOperatorStatusDepth
—— G-4-66253————
—— G-4-150615————

Formation tops

As filed on W-2/G-1. Subsea from 34 ft elevation.Download CSV →

FormationMD ftSubsea
F-89,630-9,596
F-99,710-9,676
F-149,910-9,876
F-159,953-9,919
F-1810,180-10,146
LA Farge10,426-10,392
Watson10,708-10,674
Commonwealth10,850-10,816
Moore10,938-10,904
Morris10,996-10,962
Grimshaw11,096-11,062
Anderson11,200-11,166

Perforations

Perforated and open-hole intervals.

FromToType
10,17910,236Perforated
10,70910,724Perforated
10,85010,863Perforated
10,92810,943Perforated
10,99611,028Perforated
11,09511,188Perforated
11,22511,254Perforated

Casing

Strings as reported, shallowest first.

Casing inSet atHole inCement
10.752,159151,504 S
7.62510,0409.875585 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
00Oct 3, 1994Aug 15, 1994Yes
00Aug 30, 1994——
00Jan 12, 1984Apr 28, 1976—
00Jan 12, 1984——

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/40930505, documented in the API reference.