TEXAS · WELLS · HOCKLEY COUNTY · API 42-219-34325 · DISTRICT 7B

Cobb Tom A #9

Plugged

Hockley County · Yellowhouse field  · Vertical

Cobb Tom A #9 (API 42-219-34325) is a plugged well in Hockley County, plugged June 21, 1988, last operated by Hilcorp Energy Company.

The RRC has issued one drilling permit, issued April 20, 1984, permitted to 4,800 ft.

It was permitted by Rife Oil Properties, Inc. and has since transferred to Hilcorp Energy Company on the wellbore schedule.

Completion filings report 3 formation tops, including Rustler, Yates, San Andres.

Operator of record

Hilcorp Energy Company

Permitted by Rife Oil Properties, Inc.; the EWA schedule now lists a different operator.

Based in
Houston, TX
P-5 status
Active – Extension (X)
P-5 last filed
Mar 27, 2026
Permits on file
3,454
Phone
(713) 209-2400

SOURCE · RRC EWA WELLBORE SCHEDULE

What each RRC source says

Wellbore scheduleHilcorp Energy Company
Production reportsnone
Latest permitRife Oil Properties, Inc.Apr 20, 1984

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

4,800
total depth, ft
1
permits on file
Apr 20, 1984
last permit issued
Nov 12, 1984
completed
—
cumulative oil, bbl
—
cumulative gas, mcf

PRODUCTION FROM PDQ LEASE REPORTS

Regulatory status · RRC wellbore file

Schedule
OFF SCHEDULE
Completed
Nov 12, 1984
Shut in
—
Plugged
Jun 21, 1988

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.

Permits

PermitTypeOperatorReceivedIssuedSpudDepth
236377-99DrillRife Oil Properties, Inc.Apr 20, 1984Apr 20, 1984Oct 28, 19844,800

Completions

CompletedLeaseFieldOperatorStatusDepth
Nov 12, 1984Cobb Tom A O-11-64143YellowhouseHilcorp Energy CompanyPlugged—

Formation tops

As filed on W-2/G-1. Subsea from 11 ft elevation.Download CSV →

FormationMD ftSubsea
RustlerRUSTLER ANHYDRITE1,929-1,918
YatesYATES SAND2,428-2,417
San AndresSAN ANDRES ZONE VIII4,533-4,522
San AndresSAN ANDRES ZONE LX4,598-4,587
San AndresSAN ANDRES ZONE X4,668-4,657

Perforations

Perforated and open-hole intervals.

FromToType
4,6144,660Perforated

Casing

Strings as reported, shallowest first.

Casing inSet atHole inCement
8.62542812.25250 S
4.54,7007.8751,400 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
00Feb 19, 1985Jan 4, 1985Yes
00Feb 13, 1985——

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/21934325, documented in the API reference.