TEXAS · WELLS · LIPSCOMB COUNTY · COOPER 357 LEASE · API 42-295-33426 · DISTRICT 08
Cooper 357 #3H
Lipscomb County · Lipscomb (Cleveland) field · Producing · Horizontal
Cooper 357 #3H (API 42-295-33426) is a horizontal well in Lipscomb County operated by Highmark Energy Operating LLC, completed December 29, 2008 and listed as producing on the RRC schedule.
The RRC has issued one drilling permit, issued October 4, 2008, permitted to 8,353 ft.
It was permitted by Eog Resources, Inc. and has since transferred to Highmark Energy Operating LLC on the wellbore schedule.
Completion filings report 2 formation tops, including Checkerboard Ls, Cleveland.
Its lease has reported 177K barrels of oil and 1.43M mcf of gas since February 2008, last reporting in July 2026. The lease carries 2 wells, so these are lease totals, not this well alone.
Operator of record
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 schedule | Highmark Energy Operating LLC |
| Production reports | Highmark Energy Operating, LLCthrough Apr 2026 |
| Latest permit | EOG Resources, Inc.Oct 4, 2008 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 8,353
- total depth, ft
- 1
- permits on file
- Oct 4, 2008
- last permit issued
- Dec 29, 2008
- completed
- 177K
- cumulative oil, bbl
- 1.43M
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Feb 2008 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Dec 29, 2008
- 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 2 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Cooper 357 O-14-7840 | Lipscomb (Cleveland) | Highmark Energy Operating, LLC | 2 | 177K | 1.43M | Feb 2008 – Jul 2026 |
Gas, mcf lease total
Last 12 months 20,732 · prior 12 8,094(+156%)
Oil, barrels lease total
Last 12 months 1,003 · prior 12 382(+163%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1EOG Resources, Inc.Feb 2008 → Jan 2022
- 2Highmark Energy Operating, LLCFeb 2022 → Mar 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 671795-99 | Drill | EOG Resources, Inc. | Sep 24, 2008 | Oct 4, 2008 | Nov 1, 2008 | 9,000 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| Dec 29, 2008 | Cooper 357 O-14-7840 | Lipscomb (Cleveland) | Highmark Energy Operating LLC | Producing | 8,353 |
Formation tops
As filed on W-2/G-1. Subsea from 2,468 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Checkerboard LS | 8,139 | -5,671 |
| Cleveland | 8,247 | -5,779 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 8,660 | 11,856 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 9.625 | 1,792 | 12.25 | 760 S |
| 4.5 | 11,978 | 8.75 | 1,225 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 →
| Suffix | Filed | W-2 / G-1 date | Logs referenced |
|---|---|---|---|
| 00 | Mar 20, 2009 | Jan 28, 2009 | Yes |
| 00 | Mar 5, 2009 | — | — |
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.
- Wellbore filings for 42-295-33426 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-295-33426 → scanned completion filings
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/29533426, documented in the API reference.