WELL · 42-435-38226 · DISTRICT 7
Duke Wilson 21 #16
Sutton County · Sawyer (Leonard) field · Vertical
Duke Wilson 21 #16 (API 42-435-38226) is a well in Sutton County operated by Enervest Operating L.L.C., completed April 2, 2013.
The RRC has issued 3 drilling permits between 2006 and 2015, permitted to 9,050 ft.
Completion filings report 5 formation tops, including Base Cretaceous (marker), Leonard, Wolfcamp, Canyon.
Its 5 leases have reported 13 barrels of oil and 437K mcf of gas since February 2007, last reporting in July 2026. The leases carry 5 wells, so these are lease totals, not this well alone.
Operator of record
Houston, TX · P-5 Y, filed Oct 4, 2025 · 1,249 permits on file · (713) 659-3500
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Enervest Operating L.L.C. |
| Production reports | Upp Operating, LLCthrough Apr 2026 |
| Latest permit | Enervest Operating, L.L.C.Oct 19, 2015 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 9,050
- total depth, ft
- 3
- permits on file
- Oct 19, 2015
- last permit issued
- Apr 2, 2013
- completed
- 13
- cumulative oil, bbl
- 437K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Feb 2007 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- OFF SCHEDULE
- Completed
- Apr 2, 2013
- Shut in
- —
- Plugged
- —
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 5 leases this well is completed on; they carry 5 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Duke Wilson 21 G-9-280431 | Sawyer (Canyon) | Upp Operating, LLC | 1 | 0 | 109K | Jun 2015 – Jul 2026 |
| Duke Wilson 21 G-9-280799 | Sawyer (Leonard) | Upp Operating, LLC | 1 | 0 | 0 | Jun 2015 – Jul 2026 |
| Duke Wilson 21 G-9-280819 | Fawcett (Wolfcamp) | Upp Operating, LLC | 1 | 0 | 0 | Jun 2015 – Jul 2026 |
| Duke Wilson 21 O-9-18520 | Sawyer (Leonard) | Enervest Operating, L.L.C. | 1 | 13 | 24K | Apr 2013 – Nov 2017 |
| Wilson, Duke G-9-229237 | Sawyer (Canyon) | Highmount Expl & Prod Texas LLC | 1 | 0 | 304K | Feb 2007 – Mar 2014 |
Gas, mcf lease total
Last 12 months 7,707 · prior 12 11,355(-32%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Dominion Oklahoma Texas E&P, IncFeb 2007 → Dec 2007
- 2Highmount Expl & Prod Texas LLCJan 2008 → Nov 2013
- 3Enervest Operating, L.L.C.Jul 2015 → Mar 2019
- 4Upp Operating, LLCApr 2019 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 807911-99 | Recompletion | Enervest Operating, L.L.C. | Jun 29, 2015 | Oct 19, 2015 | Mar 12, 2013 | 8,800 |
| 759259-99 | Recompletion | Highmount Expl & Prod Texas LLC | Mar 22, 2013 | Apr 2, 2013 | Mar 12, 2013 | 8,800 |
| 629998-99 | Drill | Dominion Oklahoma Texas E&P, Inc | Dec 5, 2006 | Dec 14, 2006 | Jan 31, 2007 | 9,050 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — G-9-229237 | — | — | — | — |
| — | — G-9-280431 | — | — | — | — |
| — | — G-9-280799 | — | — | — | — |
| — | — G-9-280819 | — | — | — | — |
| — | — O-9-18520 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 2,078 ft elevation.Download CSV →
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 2,220 | 2,665 | Perforated |
| 2,696 | 3,995 | Perforated |
| 5,754 | 8,530 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 8.625 | 1,095 | 11 | 403 S |
| 4.5 | 8,713 | 7.875 | 800 S |
| 4.5 | 8,717 | 7.875 | 1,800 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 | Sep 19, 2016 | Oct 22, 2015 | — |
| 00 | Sep 15, 2016 | Oct 22, 2015 | — |
| 00 | Jul 28, 2016 | Oct 22, 2015 | — |
| 00 | Jul 24, 2014 | Apr 10, 2014 | — |
| 00 | Sep 17, 2007 | Jun 18, 2007 | Yes |
| 00 | Aug 31, 2007 | — | — |
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 42-435-38226 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-435-38226 → 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/43538226, documented in the API reference.