TEXAS · WELLS · KARNES COUNTY · ZUNKER UNIT LEASE · API 42-255-32312 · DISTRICT 02
Zunker Unit #1H
Karnes County · Eagleville (Eagle Ford-2) field · Shut In · Horizontal
Zunker Unit #1H (API 42-255-32312) is a horizontal well in Karnes County operated by Devon Energy Production CO L.P., completed August 19, 2013 and listed as shut in on the RRC schedule, shut in December 1, 2019.
The RRC has issued one drilling permit, issued February 7, 2012, permitted to 11,163 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 2 formation tops, including Austin Chalk, Eagle Ford.
Its lease has reported 120K barrels of oil and 370K mcf of gas since April 2012, last reporting in July 2026. The lease carries 2 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.Feb 7, 2012 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 11,163
- total depth, ft
- 1
- permits on file
- Feb 7, 2012
- last permit issued
- Aug 19, 2013
- completed
- 120K
- cumulative oil, bbl
- 370K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Apr 2012 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Aug 19, 2013
- Shut in
- Dec 1, 2019
- 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 2 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Zunker Unit O-2-9996 | Eagleville (Eagle Ford-2) | Devon Energy Production Co, L.P. | 2 | 120K | 370K | Apr 2012 – Jul 2026 |
Gas, mcf lease total
Last 12 months 6,682 · prior 12 10,078(-34%)
Oil, barrels lease total
Last 12 months 986 · prior 12 1,234(-20%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Plains Exploration & Prod. Co.Jun 2012 → 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 |
|---|---|---|---|---|---|---|
| 732599-99 | Drill | Plains Exploration & Prod. Co. | Jan 27, 2012 | Feb 7, 2012 | May 7, 2012 | 13,700 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| Aug 19, 2013 | Zunker Unit O-2-9996 | Eagleville (Eagle Ford-2) | Devon Energy Production Co L.P. | Shut In · shut in Dec 1, 2019 | 11,163 |
Formation tops
As filed on W-2/G-1. Subsea from 322 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Austin Chalk | 10,529 | -10,207 |
| Eagle FordUPPER EAGLE FORD | 10,772 | -10,450 |
| Eagle Ford | 10,918 | -10,596 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 11,180 | 11,296 | Perforated |
| 11,180 | 15,029 | Perforated |
| 11,371 | 11,487 | Perforated |
| 11,562 | 11,678 | Perforated |
| 11,753 | 11,869 | Perforated |
| 11,944 | 12,060 | Perforated |
| 12,135 | 12,251 | Perforated |
| 12,326 | 12,442 | Perforated |
| 12,517 | 12,633 | Perforated |
| 12,708 | 12,824 | Perforated |
| 12,899 | 13,015 | Perforated |
| 13,090 | 13,206 | Perforated |
| 13,281 | 13,397 | Perforated |
| 13,472 | 13,588 | Perforated |
| 13,663 | 13,779 | Perforated |
| 13,854 | 13,970 | Perforated |
| 14,045 | 14,161 | Perforated |
| 14,236 | 14,352 | Perforated |
| 14,427 | 14,543 | Perforated |
| 14,618 | 14,729 | Perforated |
| 14,804 | 15,029 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 9.625 | 4,903 | 12.25 | 1,850 S |
| 5.5 | 15,168 | 8.75 | 1,940 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 | Aug 13, 2014 | Jun 2, 2014 | — |
| 00 | Aug 23, 2012 | Jul 20, 2012 | — |
| 00 | Jun 22, 2012 | May 31, 2012 | 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 42-255-32312 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-255-32312 → scanned completion filings
Log images are in archives with no per-well link: the RRC's Neubus archive (2004 onward). 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/25532312, documented in the API reference.