WELL · 42-317-35789 · DISTRICT 8
Semillon #1
Martin County · Vertical
Semillon #1 (API 42-317-35789) is a permitted well in Martin County filed by W&T Offshore, Inc.; no completion report is on file yet.
The RRC has issued 2 drilling permits (amended twice) between 2009 and 2013, permitted to 12,500 ft.
Completion filings report 7 formation tops, including Clear Fork, Spraberry, Dean, Wolfcamp.
Its lease has reported 66.6K barrels of oil and 72.3K mcf of gas since June 2010, last reporting in July 2026. The lease carries 2 wells, so these are lease totals, not this well alone.
Operator of record
Houston, TX · P-5 Y, filed Dec 4, 2025 · 266 permits on file · (832) 347-3955
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | none |
| Production reports | Diamondback E&P LLCthrough May 2024 |
| Latest permit | W&T Offshore, Inc.Nov 13, 2013 |
- 12,500
- total depth, ft
- 4
- permits on file
- Nov 13, 2013
- last permit issued
- —
- completed
- 66.6K
- cumulative oil, bbl
- 72.3K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jun 2010 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- OFF SCHEDULE
- Completed
- —
- 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 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 |
|---|---|---|---|---|---|---|
| Semillon O-10-40266 | Spraberry (Trend Area) | Diamondback E&P LLC | 2 | 66.6K | 72.3K | Jun 2010 – Jul 2026 |
Oil, barrels lease total
Last 12 months 0 · prior 12 1(-100%)
Gas, mcf lease total
Last 12 months 0 · prior 12 0
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Opal Resources Operating Co.,llcJul 2010 → Apr 2011
- 2W&T Offshore, Inc.May 2011 → Dec 2014
- 3Ajax Resources, LLCJan 2015 → Oct 2018
- 4Diamondback E&P LLCNov 2018 → May 2024
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 773200-98 | Recompletion | W&T Offshore, Inc. | Dec 5, 2013 | Nov 13, 2013 | Oct 17, 2013 | 12,500 |
| 773200-99 | Recompletion | W&T Offshore, Inc. | Nov 5, 2013 | Nov 13, 2013 | — | 12,500 |
| 689125-98 | Drill | W&T Offshore, Inc. | Jul 1, 2011 | Dec 31, 2009 | Feb 17, 2011 | 12,000 |
| 689125-99 | Drill | Opal Resources Operating Co.,llc | Dec 29, 2009 | Dec 31, 2009 | Feb 17, 2011 | 12,000 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — O-10-40266 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 2,893 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Clear ForkCLEARFORK | 6,302 | -3,409 |
| Clear ForkCLEARFORK | 6,303 | -3,410 |
| Spraberry | 8,180 | -5,287 |
| Spraberry | 8,182 | -5,289 |
| SpraberryLOWER SPRABERRY | 8,734 | -5,841 |
| Dean | 9,441 | -6,548 |
| WolfcampUPPER WOLFCAMP | 9,879 | -6,986 |
| WolfcampMID WOLFCAMP | 10,076 | -7,183 |
| WolfcampLOWER WOLFCAMP | 10,375 | -7,482 |
| Cline | 10,507 | -7,614 |
| Strawn | 10,977 | -8,084 |
| Strawn | 10,978 | -8,085 |
| Atoka | 11,188 | -8,295 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 8,020 | 10,954 | Perforated |
| 8,020 | 11,996 | Perforated |
| 11,010 | 11,996 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 8.625 | 2,027 | 12.25 | 950 S |
| 5.5 | 12,230 | 7.875 | 1,800 S |
| 5.5 | 12,234 | 7.875 | 2,750 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 9, 2014 | Dec 24, 2013 | — |
| 00 | Jul 6, 2012 | Jul 6, 2011 | 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 42-317-35789 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-317-35789 → scanned completion filings
Log images are in archives with no per-well link: the RRC's Neubus archive (2004 onward) and the University Lands library. 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/31735789, documented in the API reference.