WELL · 42-295-33132 · DISTRICT 10

Cooper 358 #1H

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Lipscomb County · Lipscomb (Cleveland) field · Producing  · Horizontal

Cooper 358 #1H (API 42-295-33132) is a horizontal well in Lipscomb County operated by Highmark Energy Operating LLC, completed September 25, 2007 and listed as producing on the RRC schedule.

The RRC has issued one drilling permit (amended once), issued December 21, 2006, permitted to 8,376 ft.

It was permitted by Eog Resources, Inc. and has since transferred to Highmark Energy Operating LLC on the wellbore schedule.

Completion filings report 3 formation tops, including Checkerboard, Cleveland, Marmaton.

Its lease has reported 277K barrels of oil and 3.03M mcf of gas since May 2007, last reporting in July 2026. The lease carries 4 wells, so these are lease totals, not this well alone.

Operator of record

Highmark Energy Operating LLC

Permitted by EOG Resources, Inc.; the EWA schedule now lists a different operator.

Based in
Houston, TX
P-5 status
Active (A)
P-5 last filed
Mar 9, 2026
Permits on file
23
Phone
(469) 214-5299

SOURCE · RRC EWA WELLBORE SCHEDULE

What each RRC source says

Wellbore scheduleHighmark Energy Operating LLC
Production reportsHighmark Energy Operating, LLCthrough Apr 2026
Latest permitEOG Resources, Inc.Dec 21, 2006

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

8,376
total depth, ft
2
permits on file
Dec 21, 2006
last permit issued
Sep 25, 2007
completed
277K
cumulative oil, bbl
3.03M
cumulative gas, mcf

PRODUCTION FROM PDQ LEASE REPORTS · May 2007 THROUGH Jul 2026

Regulatory status · RRC wellbore file

Schedule
ON SCHEDULE
Completed
Sep 25, 2007
Shut in
—
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; they carry 4 wells in total, so volumes are shared.Why →

LeaseFieldReporting operatorWellsOil, bblGas, mcfReported
Cooper 358 O-14-7764Lipscomb (Cleveland)Highmark Energy Operating, LLC4277K3.03MMay 2007 – Jul 2026

Gas, mcf lease total

Last 12 months 45,665 · prior 12 48,350(-6%)

05K10K202420252026

Oil, barrels lease total

Last 12 months 2,267 · prior 12 2,271(0%)

0100200300202420252026

Chain of custody

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

  1. 1EOG Resources, Inc.May 2007 → Jan 2022
  2. 2Highmark Energy Operating, LLCFeb 2022 → Apr 2026

Permits

PermitTypeOperatorReceivedIssuedSpudDepth
630957-98DrillEOG Resources, Inc.Feb 16, 2007Dec 21, 2006Jan 31, 200712,000
630957-99DrillEOG Resources, Inc.Dec 21, 2006Dec 21, 2006Jan 31, 200712,000

Completions

CompletedLeaseFieldOperatorStatusDepth
Sep 25, 2007Cooper 358 O-14-7764Lipscomb (Cleveland)Highmark Energy Operating LLCProducing8,376

Formation tops

As filed on W-2/G-1. Subsea from 2,530 ft elevation.Download CSV →

FormationMD ftSubsea
Checkerboard8,140-5,610
ClevelandCLEVELAND 58,263-5,733
ClevelandCLEVELAND 38,327-5,797
Marmaton8,388-5,858

Perforations

Perforated and open-hole intervals.

FromToType
8,96610,441Perforated

Casing

Strings as reported, shallowest first.

Casing inSet atHole inCement
9.6252,36012.251,015 S
78,6098.75250 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 21, 2010Oct 17, 2007—
00Oct 18, 2007Jun 14, 2007Yes
00Oct 10, 2007——

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/29533132, documented in the API reference.