WELL · 42-135-43552 · DISTRICT 8
Cowden #601H
Ector County · Novo (Mississippian) field · Producing · Horizontal
Cowden #601H (API 42-135-43552) is a horizontal well in Ector County operated by Zarvona Energy LLC, completed March 14, 2018 and listed as producing on the RRC schedule.
The RRC has issued one drilling permit, issued November 3, 2017, permitted to 11,400 ft.
It was permitted by Novo Oil & Gas Texas, LLC and has since transferred to Zarvona Energy LLC on the wellbore schedule.
Completion filings report 10 formation tops, including Yates, Seven Rivers, Queen, Grayburg.
Its lease has reported 815K barrels of oil and 813K mcf of gas since March 2018, last reporting in July 2026. The lease carries 3 wells, so these are lease totals, not this well alone.
Operator of record
Permitted by Novo Oil & Gas Texas, LLC; the EWA schedule now lists a different operator.
Houston, TX · P-5 Y, filed Mar 4, 2026 · 98 permits on file · (713) 600-0600
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Zarvona Energy LLC |
| Production reports | Zarvona Energy LLCthrough Apr 2026 |
| Latest permit | Novo Oil & Gas Texas, LLCNov 3, 2017 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 11,400
- total depth, ft
- 1
- permits on file
- Nov 3, 2017
- last permit issued
- Mar 14, 2018
- completed
- 815K
- cumulative oil, bbl
- 813K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Mar 2018 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Mar 14, 2018
- Shut in
- —
- Plugged
- —
Operator's P-5 on the schedule: X
Surface location
31.875377, -102.540825
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 lease this well is completed on; they carry 3 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Cowden O-10-50728 | Novo (Mississippian) | Zarvona Energy LLC | 3 | 815K | 813K | Mar 2018 – Jul 2026 |
Oil, barrels lease total
Last 12 months 67,674 · prior 12 74,614(-9%)
Gas, mcf lease total
Last 12 months 94,730 · prior 12 96,290(-2%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Novo Oil & Gas Texas, LLCMar 2018 → Feb 2019
- 2Zarvona Energy LLCMar 2019 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 832535-99 | Drill | Novo Oil & Gas Texas, LLC | Oct 30, 2017 | Nov 3, 2017 | Nov 7, 2017 | 11,400 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — O-10-50728 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 3,014 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Yates | 3,787 | -773 |
| Seven Rivers | 4,786 | -1,772 |
| Queen | 4,996 | -1,982 |
| Grayburg | 5,284 | -2,270 |
| San AndresSAN ANDRES - HIGH FLOWS, H2S, CO | 5,669 | -2,655 |
| Glorieta | 6,205 | -3,191 |
| Clear ForkCLEARFORK | 6,405 | -3,391 |
| Holt | — | — |
| Santa RosaSANTA ROSA BASE | — | — |
| Tubb | — | — |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 10,890 | 15,109 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 13.375 | 1,460 | 17.5 | 1,300 S |
| 9.625 | 9,538 | 12.25 | 1,700 S |
| 7 | 11,040 | 8.5 | 455 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 | Nov 20, 2018 | Sep 27, 2018 | Yes |
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 42-135-43552 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-135-43552 → 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.
Cowden42-135-43674
0.0 KM · Zarvona Energy LLC · Section with this well →
| Queen | 3,680 | -659 |
| Grayburg | 3,980 | -959 |
| San Andres | 4,320 | -1,299 |
| Glorieta | 5,260 | -2,239 |
| Tubb | 5,680 | -2,659 |
| Clear Fork | — | |
| Yates | — | |
| Santa Rosa | — |
10 TOPS · FIRST 8
Cowden Ranch '6A'42-135-35987
1.2 KM · Rust Oil Corp. · Section with this well →
| Santa Rosa | 1,300 | 1,706 |
| Yates | 2,700 | 306 |
| Seven Rivers | 2,900 | 106 |
| Queen | 3,100 | -94 |
| Grayburg | 3,600 | -594 |
| San Andres | 4,065 | -1,059 |
| San Andres | 4,800 | -1,794 |
| Holt | 5,200 | -2,194 |
11 TOPS · FIRST 8
Cowden42-135-43609
1.3 KM · Zarvona Energy LLC · Section with this well →
| Grayburg | 3,360 | -354 |
| Glorieta | 5,273 | -2,267 |
| Tubb | 5,673 | -2,667 |
| Queen | — | |
| Yates | — | |
| Seven Rivers | — | |
| Santa Rosa | — | |
| Clear Fork | — |
10 TOPS · FIRST 8
Cowden Ranch '6A'42-135-35643
1.4 KM · Rust Oil Corp. · Section with this well →
| Grayburg | 3,600 | -599 |
| San Andres | 4,042 | -1,041 |
| Clear Fork | 5,266 | -2,265 |
| Glorieta | 5,400 | -2,399 |
Cowden Ranch '7A'42-135-35032
2.7 KM · Rust Oil Corp. · Section with this well →
| Grayburg | 3,600 | -585 |
| San Andres | 4,228 | -1,213 |
| San Andres | 4,228 | -1,213 |
| Glorieta | 5,400 | -2,385 |
| Wolfcamp | 8,054 | -5,039 |
| Wolfcamp | 8,054 | -5,039 |
Katy Unit42-135-44016
2.8 KM · Ares Energy, Ltd. · Section with this well →
| Yates | 2,830 | 216 |
| Queen | 3,430 | -384 |
| Grayburg | 3,980 | -934 |
| San Andres | 4,283 | -1,237 |
| Glorieta | 5,348 | -2,302 |
| Clear Fork | 5,763 | -2,717 |
| Santa Rosa | — | |
| Seven Rivers | — |
10 TOPS · FIRST 8
Sweet Melissa42-135-43810
3.2 KM · Ares Energy, Ltd. · Section with this well →
| Yates | 2,843 | 164 |
| Seven Rivers | 3,225 | -218 |
| Queen | 3,442 | -435 |
| Grayburg | 3,777 | -770 |
| San Andres | 3,976 | -969 |
| Glorieta | 5,361 | -2,354 |
| Clear Fork | 5,554 | -2,547 |
| Holt | — |
10 TOPS · FIRST 8
Cowden 942-135-43511
5.0 KM · Raptor Petroleum Develop, LLC · Section with this well →
| Santa Rosa | 1,382 | 1,592 |
| Yates | 2,842 | 132 |
| Seven Rivers | 3,065 | -91 |
| Queen | 3,750 | -776 |
| Grayburg | 4,028 | -1,054 |
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/13543552, documented in the API reference.