WELL · 42-321-32307 · DISTRICT 3

Hudson #4

Y

Matagorda County · Markham field · LPG Storage  · Vertical

Hudson #4 (API 42-321-32307) is a well in Matagorda County operated by Underground Services Markham LLC, completed November 20, 2010 and listed as lpg storage on the RRC schedule.

The RRC has issued one drilling permit, issued June 21, 2010, permitted to 7,300 ft.

It was permitted by Underground Services Markham, LP and has since transferred to Underground Services Markham LLC on the wellbore schedule.

Completion filings report 3 formation tops, including Caprock, Top Of Salt, Top Salt.

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

It holds an active disposal or injection permit.

Operator of record

Underground Services Markham LLC

Permitted by Underground Services Markham, LP; the EWA schedule now lists a different operator.

Houston, TX · P-5 Y, filed Jan 5, 2026 · 8 permits on file · (713) 877-2700

SOURCE · RRC EWA WELLBORE SCHEDULE

What each RRC source says

Wellbore scheduleUnderground Services Markham LLC
Production reportsnone
Latest permitUnderground Services Markham, LPJun 21, 2010

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

7,300
total depth, ft
1
permits on file
Jun 21, 2010
last permit issued
Nov 20, 2010
completed
0
cumulative oil, bbl
0
cumulative gas, mcf

PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Jul 2026

Regulatory status · RRC wellbore file

Schedule
ON SCHEDULE
Completed
Nov 20, 2010
Shut in
—
Plugged
—

Operator's P-5 on the schedule: Active

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 4 wells in total, so volumes are shared.Why →

LeaseFieldReporting operatorWellsOil, bblGas, mcfReported
Hudson O-3-11293MarkhamUnderground Services Markham,llc400Jan 1993 – Jul 2026

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

Permits

PermitTypeOperatorReceivedIssuedSpudDepth
697598-99DrillUnderground Services Markham, LPJun 15, 2010Jun 21, 2010Aug 7, 20107,300

Completions

CompletedLeaseFieldOperatorStatusDepth
—— O-3-11293————

Formation tops

As filed on W-2/G-1. Download CSV →

FormationMD ft
CaprockTOP CAPROCK1,814
CaprockTOP OF CAPROCK1,814
Top of Salt1,952
Top Salt1,952

Casing

Strings as reported, shallowest first.

Casing inSet atHole inCement
4219842—
361,108443,288 S
301,874405,916 S
202,281265,312 S
163,57622560 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 9, 2025Apr 24, 2025—
00Jun 23, 2015Oct 17, 2013Yes

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.

Beyond the permit record

RRC UIC permits · H-10 reported volumes

Injection

0
bbl, last 12 reported months
0
bbl, all reported
Jan 1993
reported through
UICKindStatusPermitted bbl/dMax psiZone ft
000074902UIC PermitActive40,0002,1602,900–6,600

MONTHLY INJECTED, BBL · H-10 · LAST 24 REPORTED MONTHS

Last 12 months 0 · prior 12 0

0119921993

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/32132307, documented in the API reference.