WELL · 42-337-32450 · DISTRICT 9
Shackelford K. Unit #1
Montague County · Cara (Ellenburger) field · Vertical
Shackelford K. Unit #1 (API 42-337-32450) is a plugged well in Montague County, plugged September 13, 2022, last operated by W&W Oil And Gas Inc..
The RRC has issued one drilling permit, issued October 30, 1984, permitted to 7,500 ft.
It was permitted by Heydrick Petroleum Company and has since transferred to W&W Oil And Gas Inc. on the wellbore schedule.
Completion filings report 7 formation tops, including Brown Lse, Brazos River, Bryson, 1st Cad. Ls..
Its lease has reported 25.9K barrels of oil and 21 mcf of gas since January 1993, last reporting in December 2022.
Operator of record
Permitted by Heydrick Petroleum Company; the EWA schedule now lists a different operator.
Muenster, TX · P-5 Y, filed Apr 4, 2026 · (972) 743-0999
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | W&W Oil and Gas Inc. |
| Production reports | Aries Operating, LPthrough Feb 2018 |
| Latest permit | Heydrick Petroleum CompanyOct 30, 1984 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 7,500
- total depth, ft
- 1
- permits on file
- Oct 30, 1984
- last permit issued
- Mar 16, 1985
- completed
- 25.9K
- cumulative oil, bbl
- 21
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Dec 2022
Regulatory status · RRC wellbore file
- Schedule
- OFF SCHEDULE
- Completed
- Mar 16, 1985
- Shut in
- —
- Plugged
- Sep 13, 2022
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 |
|---|---|---|---|---|---|---|
| Shackelford, K. Unit O-13-25161 | Cara (Ellenburger) | W&W Oil and Gas, Inc. | 1 | 25.9K | 21 | Jan 1993 – Dec 2022 |
No volumes reported on these leases in the last three years.
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Heydrick Petroleum CompanyJan 1993 → Oct 2002
- 2Wise Production CompanyNov 2002 → Jul 2010
- 3Clearfork Operating LLCAug 2010 → Aug 2011
- 4Clearfork Production, LLCSep 2011 → Sep 2014
- 5Aries Operating, LPOct 2014 → Feb 2018
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 256081-99 | Drill | Heydrick Petroleum Company | Sep 21, 1984 | Oct 30, 1984 | — | 7,500 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — O-13-25161 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 1,043 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Brown Lse | 1,826 | -783 |
| Brazos River | 3,872 | -2,829 |
| BrysonUPPER BRYSON SAND | 4,906 | -3,863 |
| 1ST Cad. Ls. | 5,995 | -4,952 |
| Barnett | 6,470 | -5,427 |
| Viola | 6,687 | -5,644 |
| Ellenburger | 7,269 | -6,226 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 7,270 | 7,300 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 8.625 | 995 | 12.25 | 325 S |
| 4.5 | 7,440 | 7.875 | 425 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 12, 1985 | Mar 19, 1985 | — |
| 00 | Apr 3, 1985 | — | — |
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 42-337-32450 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-337-32450 → 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/33732450, documented in the API reference.