WELL · 42-135-35014 · DISTRICT 8
R.B. -AB- Cowden #8C
Ector County · Vertical
R.B. -AB- Cowden #8C (API 42-135-35014) is a permitted well in Ector County filed by Fivestones Energy LLC; no completion report is on file yet.
The RRC has issued 4 drilling permits between 1985 and 2024, permitted to 8,600 ft.
Completion filings report 6 formation tops, including Rustler, Grayburg, San Andres, Clear Fork.
Its 4 leases have reported 514K barrels of oil and 401K mcf of gas since January 1993, last reporting in July 2026. The leases carry 29 wells, so these are lease totals, not this well alone.
Operator of record
Midland, TX · P-5 Y, filed Sep 4, 2025 · 79 permits on file · (432) 618-9929
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | none |
| Production reports | Octane Energy Operating, LLCthrough Apr 2026 |
| Latest permit | Fivestones Energy LLCMay 22, 2024 |
- 8,600
- total depth, ft
- 4
- permits on file
- May 22, 2024
- last permit issued
- —
- completed
- 514K
- cumulative oil, bbl
- 401K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- OFF SCHEDULE
- Completed
- —
- Shut in
- —
- Plugged
- —
Surface location
32.070461, -102.762281
OpenStreetMap → · Google Maps →
Permit surface location from the RRC GIS record, in Ector County.
Lease production
PDQ LEASE REPORTS · REPORTED THROUGH APR 2026
Texas reports oil by lease, not by well. These are the 4 leases this well is completed on; they carry 29 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Goldsmith, North Devonian Unit O-10-20194 | Goldsmith, N. (Devonian) | Octane Energy Operating, LLC | 25 | 476K | 303K | Jan 1993 – Jul 2026 |
| Cowden, R. B. - AB - O-10-34171 | Goldsmith, N. (San Andres, Con.) | Octane Energy Operating, LLC | 2 | 34.3K | 94.7K | Mar 1994 – Jul 2026 |
| Cowden, R. B. - AB - O-10-40067 | Martin (Consolidated) | Endeavor Energy Resources L.P. | 1 | 0 | 0 | Jun 2010 – Oct 2010 |
| Cowden, R.B. "AB" O-10-33845 | Goldsmith (5600) | Amoco Production Company | 1 | 4.59K | 3.27K | Apr 1993 – Aug 1994 |
Oil, barrels lease total
Last 12 months 1,149 · prior 12 1,393(-18%)
Gas, mcf lease total
Last 12 months 0 · prior 12 974(-100%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Amoco Production CompanyJan 1993 → Jan 1996
- 2Stephens, Autry C.Feb 1996 → Aug 2000
- 3Endeavor Energy Resources L.P.Sep 2000 → Oct 2023
- 4Fivestones Energy LLCNov 2023 → Oct 2025
- 5Octane Energy Operating, LLCNov 2025 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 899729-99 | Recompletion | Fivestones Energy LLC | May 15, 2024 | May 22, 2024 | — | 7,500 |
| 423088-99 | Other | Amoco Production Company | Apr 18, 1994 | May 16, 1994 | Feb 23, 1994 | 8,003 |
| 405295-99 | Recompletion | Amoco Production Company | Oct 28, 1992 | Dec 29, 1992 | Apr 16, 1993 | 8,003 |
| 278808-99 | Drill | Amoco Production Co.-Andrews | Jun 26, 1985 | Jun 26, 1985 | — | 8,600 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — O-10-20194 | — | — | — | — |
| — | — O-10-33845 | — | — | — | — |
| — | — O-10-34171 | — | — | — | — |
| — | — O-10-34171 | — | — | — | — |
| — | — O-10-40067 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 3,310 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Rustler | 1,480 | 1,830 |
| Grayburg | 3,780 | -470 |
| San Andres | 4,222 | -912 |
| Clear ForkUPPER CLEARFORK | 5,610 | -2,300 |
| Devonian | 7,890 | -4,580 |
| Silurian (undifferentiated)SILURIAN | 7,950 | -4,640 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 4,228 | 4,422 | Perforated |
| 5,638 | 5,698 | Perforated |
| 7,876 | 7,924 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 13.375 | 318 | 17.25 | 400 S |
| 13.375 | 320 | 17.5 | 400 S |
| 8.625 | 4,013 | 12.25 | 1,800 S |
| 5.5 | 8,003 | 7.875 | 860 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 | Oct 18, 2010 | Mar 25, 1994 | Yes |
| 00 | Aug 9, 2010 | Mar 25, 1994 | Yes |
| 00 | Aug 29, 1994 | Mar 25, 1994 | Yes |
| 00 | Jun 6, 1994 | May 21, 1993 | Yes |
| 00 | Aug 3, 1993 | May 21, 1993 | Yes |
| 00 | Jun 30, 1993 | — | — |
| 00 | Oct 2, 1985 | Sep 19, 1985 | Yes |
| 00 | Sep 26, 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.
- Wellbore filings for 42-135-35014 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-135-35014 → scanned completion filings
Log images are in archives with no per-well link: the RRC's Neubus archive (2004 onward) and the University Lands library. then paste it into their search.
Nearby wells and their tops
NEAREST 8 LOCATED WELLS WITH TOPS · WITHIN 16 KM
Draw a cross-section
This well's tops beside its 5 nearest neighbours, subsea-aligned so they line up regardless of surface terrain.
R.B. -AB- Cowden42-135-03155
0.6 KM · Fivestones Energy LLC · Section with this well →
| Yates | 2,772 | 533 |
| Seven Rivers | 3,017 | 288 |
| Grayburg | 4,045 | -740 |
| San Andres | 4,210 | -905 |
| Clear Fork | 5,615 | -2,310 |
| Tubb | 6,118 | -2,813 |
| Santa Rosa | — | |
| Queen | — |
10 TOPS · FIRST 8
R.B. Cowden 'B'42-135-21198
0.8 KM · Fivestones Energy LLC · Section with this well →
| San Andres | 4,220 | -910 |
| Clear Fork | 5,718 | -2,408 |
| Wichita-Albany | 6,709 | -3,399 |
Cowden 'F'42-003-33297
2.4 KM · Fivestones Energy LLC · Section with this well →
| Yates | 2,730 | 542 |
| San Andres | 4,202 | -930 |
| Clear Fork | 5,642 | -2,370 |
| Clear Fork | 5,828 | -2,556 |
| Clear Fork | 6,208 | -2,936 |
| Wichita-Albany | 6,801 | -3,529 |
| Wolfcamp | 7,382 | -4,110 |
| Fusselman | 8,021 | -4,749 |
Cowden "F" Silurian42-003-33277
2.5 KM · Pecos Operating Company, LLC · Section with this well →
| San Anmdres | 4,246 | -968 |
| San Andres | 4,246 | -968 |
| Clear Fork | 5,642 | -2,364 |
| Wolfcamp | 7,378 | -4,100 |
| Silurian (undifferentiated) | 8,002 | -4,724 |
| Fusselman | 8,002 | -4,724 |
Cowden 'F'42-003-32949
2.6 KM · Fivestones Energy LLC · Section with this well →
| San Andres | 4,220 | -948 |
| Clear Fork | 5,634 | -2,362 |
| Wichita-Albany | 6,810 | -3,538 |
| Wolfcamp | 7,366 | -4,094 |
| Fusselman | 8,024 | -4,752 |
Cowden -C-42-135-03225
2.7 KM · Grama Operating, LLC · Section with this well →
| Yates | 2,642 | 605 |
| San Andres | 4,000 | -753 |
Cowden 'F'42-003-32763
2.8 KM · Fivestones Energy LLC · Section with this well →
| San Andres | 4,130 | -867 |
| San Andres | 4,190 | -927 |
| Glorieta | 5,162 | -1,899 |
| Clear Fork | 5,623 | -2,360 |
| Wolfcamp | 7,365 | -4,102 |
| Fusselman | 8,054 | -4,791 |
| Tubb | — | |
| Yates | — |
13 TOPS · FIRST 8
Red Dog42-135-39155
2.9 KM · OXY USA WTP LP · Section with this well →
| San Andres | 4,210 | -875 |
| Clear Fork | 5,708 | -2,373 |
| Wichita-Albany | 6,715 | -3,380 |
| Wolfcamp | 7,488 | -4,153 |
| Devonian | 8,012 | -4,677 |
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/13535014, documented in the API reference.