WELL · 42-135-43407 · DISTRICT 8
Cowden E.F. -D- #4
Ector County · Cowden South field · Producing · Vertical
Cowden E.F. -D- #4 (API 42-135-43407) is a well in Ector County operated by Baker Operating Inc., completed November 29, 2016 and listed as producing on the RRC schedule.
The RRC has issued one drilling permit, issued May 20, 2016, permitted to 4,250 ft.
It was permitted by Cuervo, Inc. and has since transferred to Baker Operating Inc. on the wellbore schedule.
Completion filings report 10 formation tops, including Santa Rosa, Yates, Seven Rivers, Queen.
Its lease has reported 75.6K barrels of oil and 46K mcf of gas since January 1993, last reporting in July 2026. The lease carries 4 wells, so these are lease totals, not this well alone.
Operator of record
Permitted by Cuervo, Inc.; the EWA schedule now lists a different operator.
Odessa, TX · P-5 Y, filed Sep 4, 2025 · 20 permits on file · (432) 349-5005
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Baker Operating Inc. |
| Production reports | Baker Operating, Inc.through Apr 2026 |
| Latest permit | Cuervo, Inc.May 20, 2016 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 4,250
- total depth, ft
- 1
- permits on file
- May 20, 2016
- last permit issued
- Nov 29, 2016
- completed
- 75.6K
- cumulative oil, bbl
- 46K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Nov 29, 2016
- Shut in
- —
- Plugged
- —
Operator's P-5 on the schedule: Active
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 →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Cowden, E.F. -D- O-10-25055 | Cowden, South | Baker Operating, Inc. | 4 | 75.6K | 46K | Jan 1993 – Jul 2026 |
Oil, barrels lease total
Last 12 months 959 · prior 12 1,020(-6%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Petroleum Technical Services Co.Jan 1993 → Sep 1997
- 2Cuervo, Inc.Oct 1997 → Dec 2019
- 3Baker Operating, Inc.Jan 2020 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 815666-99 | Drill | Cuervo, Inc. | May 16, 2016 | May 20, 2016 | Jun 18, 2016 | 4,250 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — O-10-25055 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 2,965 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Santa RosaSANTA ROSA BASE | 1,450 | 1,515 |
| Yates | 3,000 | -35 |
| Seven Rivers | 3,742 | -777 |
| Queen | 3,800 | -835 |
| Grayburg | 3,846 | -881 |
| San AndresSAN ANDRES - HIGH FLOWS, H2S, CO | 4,106 | -1,141 |
| Clear ForkCLEARFORK | — | — |
| Glorieta | — | — |
| Holt | — | — |
| Tubb | — | — |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 3,846 | 4,096 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 8.625 | 280 | 11 | 200 S |
| 4.5 | 4,150 | 7.875 | 890 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 | Apr 26, 2017 | Dec 20, 2016 | 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 42-135-43407 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-135-43407 → 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.
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/13543407, documented in the API reference.