TEXAS · WELLS · KARNES COUNTY · JANYSEK UNIT LEASE · API 42-255-31965 · DISTRICT 02
Janysek Unit #1H
Karnes County · Eagleville (Eagle Ford-2) field · Producing · Horizontal
Janysek Unit #1H (API 42-255-31965) is a horizontal well in Karnes County operated by Devon Energy Production CO L.P., completed July 14, 2021 and listed as producing on the RRC schedule.
The RRC has issued one drilling permit (amended once), issued May 11, 2011, permitted to 12,573 ft.
It was permitted by Plains Exploration & Prod. CO. and has since transferred to Devon Energy Production CO L.P. on the wellbore schedule.
Completion filings report 3 formation tops, including Anacacho, Austin Chalk, Eagle Ford.
Its lease has reported 2.23M barrels of oil and 5.78M mcf of gas since September 2011, last reporting volume in April 2026. The lease carries 9 wells, so these are lease totals, not this well alone.
Operator of record
Devon Energy Production Co L.P.
Permitted by Plains Exploration & Prod. Co.; the EWA schedule now lists a different operator.
- Based in
- Oklahoma City, OK
- P-5 status
- Active (A)
- P-5 last filed
- Dec 18, 2025
- Permits on file
- 9,266
- Phone
- (405) 235-3611
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Devon Energy Production Co L.P. |
| Production reports | Devon Energy Production Co, L.P.through Apr 2026 |
| Latest permit | Plains Exploration & Prod. Co.May 11, 2011 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 12,573
- total depth, ft
- 2
- permits on file
- May 11, 2011
- last permit issued
- Jul 14, 2021
- completed
- 2.23M
- cumulative oil, bbl
- 5.78M
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Dec 2011 THROUGH Apr 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Jul 14, 2021
- 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 9 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Janysek Unit O-2-9844 | Eagleville (Eagle Ford-2) | Devon Energy Production Co, L.P. | 9 | 2.23M | 5.78M | Sep 2011 – Apr 2026 |
Oil, barrels lease total
Last 12 months 64,898 · prior 12 70,978(-9%)
Gas, mcf lease total
Last 12 months 498,830 · prior 12 421,693(+18%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Plains Exploration & Prod. Co.Dec 2011 → Jun 2013
- 2Freeport-McMoran Oil & Gas LLCJul 2013 → Jun 2014
- 3Encana Oil & Gas(usa) Inc.Jul 2014 → Jan 2020
- 4Ovintiv USA Inc.Feb 2020 → Apr 2021
- 5Validus NRG Aquilas Assetco LLCMay 2021 → Aug 2022
- 6Devon Energy Production Co, L.P.Sep 2022 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 715921-98 | Drill | Plains Exploration & Prod. Co. | Jun 30, 2011 | May 11, 2011 | May 27, 2011 | 13,700 |
| 715921-99 | Drill | Plains Exploration & Prod. Co. | May 9, 2011 | May 11, 2011 | May 27, 2011 | 13,700 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| Jul 14, 2021 | Janysek Unit O-2-9844 | Eagleville (Eagle Ford-2) | Devon Energy Production Co L.P. | Producing | 12,573 |
Formation tops
As filed on W-2/G-1. Subsea from 285 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Anacacho | 11,904 | -11,619 |
| Austin Chalk | 12,129 | -11,844 |
| Eagle FordUPPER EAGLE FORD | 12,250 | -11,965 |
| Eagle Ford | 12,316 | -12,031 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 12,960 | 13,260 | Perforated |
| 12,960 | 17,700 | Perforated |
| 13,330 | 13,630 | Perforated |
| 13,700 | 14,000 | Perforated |
| 14,070 | 14,370 | Perforated |
| 14,440 | 14,740 | Perforated |
| 14,810 | 15,110 | Perforated |
| 15,180 | 15,480 | Perforated |
| 15,550 | 15,850 | Perforated |
| 15,920 | 16,220 | Perforated |
| 16,290 | 16,590 | Perforated |
| 16,660 | 16,960 | Perforated |
| 17,030 | 17,330 | Perforated |
| 17,400 | 17,700 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 9.625 | 4,495 | 12.25 | 1,670 S |
| 4.5 | 17,865 | 6.125 | 1,030 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 | May 22, 2026 | May 1, 2026 | — |
| 00 | Mar 28, 2012 | Jan 11, 2012 | Yes |
Well logs
1 log loaded from the RRC's log index, the latest received Aug 19, 2014. 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 |
|---|---|---|---|---|
| RESISTIVITYSpans Anacacho, Austin Chalk, Eagle Ford | TIFF | 11,429 to 17,865 | Aug 19, 2014run Jul 25, 2011 | 0.92 |
"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 42-255-31965 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-255-31965 → 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/25531965, documented in the API reference.