TEXAS · WELLS · POLK COUNTY · EPSTEIN LEASE · API 42-373-31231 · DISTRICT 03
Epstein #4
Polk County · Jazz (Wilcox Deep) field · Producing · Vertical
Epstein #4 (API 42-373-31231) is a well in Polk County operated by Eqv Operating LLC, completed February 28, 2013 and listed as producing on the RRC schedule.
The RRC has issued one drilling permit, issued July 20, 2012, permitted to 15,000 ft.
It was permitted by Unit Petroleum Company and has since transferred to Eqv Operating LLC on the wellbore schedule.
Completion filings report 2 formation tops, including Yegua, Wilcox.
Its lease has reported 141K barrels of oil and 9.33M mcf of gas since November 2012, last reporting volume in February 2026.
Operator of record
Permitted by Unit Petroleum Company; the EWA schedule now lists a different operator.
- Based in
- Oklahoma City, OK
- P-5 status
- Active (A)
- P-5 last filed
- Sep 24, 2025
- Phone
- (405) 648-4409
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Eqv Operating LLC |
| Production reports | Eqv Operating LLCthrough Feb 2026 |
| Latest permit | Unit Petroleum CompanyJul 20, 2012 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 15,000
- total depth, ft
- 1
- permits on file
- Jul 20, 2012
- last permit issued
- Feb 28, 2013
- completed
- 141K
- cumulative oil, bbl
- 9.33M
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Dec 2012 THROUGH Feb 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Feb 28, 2013
- Shut in
- —
- Plugged
- —
Operator's P-5 on the schedule: Active – Extension (X)
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; this well is the only one on it.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Epstein G-3-271322 | Jazz (Wilcox Deep) | Eqv Operating LLC | 1 | 141K | 9.33M | Nov 2012 – Feb 2026 |
Gas, mcf lease total
Last 12 months 188,524 · prior 12 280,613(-33%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Unit Petroleum CompanyDec 2012 → May 2022
- 2Olipdp II, LLCJun 2022 → Nov 2025
- 3Eqv Operating LLCDec 2025 → Feb 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 744307-99 | Drill | Unit Petroleum Company | Jul 10, 2012 | Jul 20, 2012 | Oct 9, 2012 | 15,000 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| Feb 28, 2013 | Epstein G-3-271322 | Jazz (Wilcox Deep) | Eqv Operating LLC | Producing | 15,000 |
Formation tops
As filed on W-2/G-1. Subsea from 155 ft elevation.Download CSV →
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 13,728 | 13,970 | Perforated |
| 13,728 | 14,004 | Perforated |
| 14,490 | 14,502 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 10.75 | 2,523 | 13.5 | 1,280 S |
| 7 | 12,100 | 9.875 | 640 S |
| 4.5 | 15,000 | 6.125 | 490 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. The record date is the RRC's own date on the record, not the day the report was filed: 462,034 of the state's filings carry 1984-01-12. About these reports →
| Suffix | RRC record date | W-2 / G-1 date | Logs referenced |
|---|---|---|---|
| 00 | Oct 22, 2014 | Apr 15, 2014 | — |
| 00 | Feb 11, 2014 | Jan 16, 2014 | — |
| 00 | Feb 10, 2014 | Jan 30, 2013 | Yes |
Well logs
1 log loaded from the RRC's log index, the latest received Mar 8, 2016. Density, Neutron, Resistivity. These are the logs loaded into Petrora from the Railroad Commission's inventories, not necessarily every log run on the well. The RRC holds the files; each opens from its log search for the well. The kind is the RRC's description of the log; the interval is the one filed for it.
Open the RRC's log search for this well ↗| Logas described | Files | Intervalft, as filed | Datereceived | SizeMB |
|---|---|---|---|---|
| COMBINATION: RESISTIVITY/NEUTRON/DENSITY POROSITYSpans Wilcox | TIFF | 12,102 to 15,008 | Mar 8, 2016run Nov 10, 2012 | 0.70 |
"Spans" is by this well's own filed formation tops: a formation runs from its top to the next deeper top filed, and the deepest runs to the bottom of the log. Depths are measured along the wellbore, so on a horizontal the lateral counts in the formation it was landed in.
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 42-373-31231 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-373-31231 → scanned completion filings
The logs loaded for this well are under Well logs, with the RRC's log search for it.
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/37331231, documented in the API reference.