WELL · 42-495-04357 · DISTRICT 8
Sealy Smith -B- #4
Winkler County · Halley East (Strawn) field · Vertical
Sealy Smith -B- #4 (API 42-495-04357) is a well in Winkler County operated by Shell Oil Company, completed May 24, 1979.
The RRC has issued 3 drilling permits between 1978 and 2016, permitted to 10,470 ft.
It was permitted by Seguro Oil And Gas, LLC and has since transferred to Shell Oil Company on the wellbore schedule.
Completion filings report 5 formation tops, including Yates, Queen, Wolfcamp, Devonian.
Its 2 leases have reported 43.3K barrels of oil and 350K mcf of gas since January 1993, last reporting in July 2026. The leases carry 7 wells, so these are lease totals, not this well alone.
Operator of record
Permitted by Seguro Oil and Gas, LLC; the EWA schedule now lists a different operator.
Houston, TX · P-5 Y, filed Jul 4, 2026 · 1,401 permits on file · (281) 787-6834
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Shell Oil Company |
| Production reports | Southern Operating, LLCthrough Apr 2026 |
| Latest permit | Seguro Oil and Gas, LLCAug 26, 2016 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 10,470
- total depth, ft
- 3
- permits on file
- Aug 26, 2016
- last permit issued
- May 24, 1979
- completed
- 43.3K
- cumulative oil, bbl
- 350K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- OFF SCHEDULE
- Completed
- May 24, 1979
- 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 2 leases this well is completed on; they carry 7 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Smith, Sealy, -B- O-10-15174 | Halley, South (Queen Sand) | Southern Operating, LLC | 5 | 17.6K | 90K | Jan 1993 – Jul 2026 |
| Sealy Smith -B- O-10-25421 | Halley (Clear Fork) | Southern Operating, LLC | 2 | 25.8K | 260K | Jan 1993 – Jul 2026 |
Oil, barrels lease total
Last 12 months 303 · prior 12 508(-40%)
Gas, mcf lease total
Last 12 months 656 · prior 12 497(+32%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Citation Oil & Gas Corp.Jan 1993 → Aug 2010
- 2Great Basin Well Service Corp.Sep 2010 → Apr 2016
- 3Seguro Oil and Gas, LLCNov 2016 → Jan 2023
- 4NO Limit Energy LLCApr 2023 → Nov 2023
- 5Southern Operating, LLCDec 2023 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 817962-99 | Recompletion | Seguro Oil and Gas, LLC | Aug 23, 2016 | Aug 26, 2016 | Oct 13, 2016 | 4,000 |
| 49871-99 | Other | Shell Oil Company | May 31, 1979 | May 31, 1979 | — | 10,470 |
| 22628-99 | Recompletion | Shell Oil Company | Apr 20, 1978 | Apr 20, 1978 | — | 10,470 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — O-10-15174 | — | — | — | — |
| — | — O-10-25421 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 2,739 ft elevation.Download CSV →
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 3,126 | 3,129 | Perforated |
| 3,147 | 3,150 | Perforated |
| 3,154 | 3,158 | Perforated |
| 3,163 | 3,167 | Perforated |
| 3,173 | 3,177 | Perforated |
| 3,184 | 3,188 | Perforated |
| 3,191 | 3,194 | Perforated |
| 3,198 | 3,201 | Perforated |
| 3,205 | 3,208 | Perforated |
| 5,471 | 5,488 | Perforated |
| 9,825 | 9,830 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 13.375 | 591 | 17.5 | 400 S |
| 9.625 | 4,336 | 12.25 | 3,150 S |
| 2.875 | 5,495 | — | — |
| 2 | 9,790 | — | — |
| 7 | 10,456 | 8.75 | 1,350 S |
| 7 | 10,470 | 8.75 | 1,350 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 | Oct 8, 2025 | Sep 11, 2025 | — |
| 00 | Dec 2, 2016 | Nov 9, 2016 | Yes |
| 00 | Jan 12, 1984 | Jun 4, 1979 | — |
| 00 | Jan 12, 1984 | Jul 26, 1968 | — |
| 00 | Jan 12, 1984 | — | — |
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 42-495-04357 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-495-04357 → 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/49504357, documented in the API reference.