WELL · 42-451-30910 · DISTRICT 7
Mathews Strawn #4
Tom Green County · K. W. B. (Strawn) field · Vertical
Mathews Strawn #4 (API 42-451-30910) is a well in Tom Green County operated by Arch Oil & Gas LLC, completed April 8, 1982.
The RRC has issued 2 drilling permits between 1982 and 2009, permitted to 7,000 ft.
It was permitted by Silver Oil & Gas Inc. and has since transferred to Arch Oil & Gas LLC on the wellbore schedule.
Completion filings report 4 formation tops, including Swastika, Cisco, Canyon, Strawn.
Its 4 leases have reported 117K barrels of oil and 588K mcf of gas since January 1993, last reporting in July 2026. The leases carry 99 wells, so these are lease totals, not this well alone.
Operator of record
Permitted by Silver Oil & Gas Inc.; the EWA schedule now lists a different operator.
Ennis, TX · P-5 Y, filed Feb 4, 2026 · (940) 391-7210
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Arch Oil & Gas LLC |
| Production reports | Arch Oil & Gas, LLCthrough Oct 2020 |
| Latest permit | Silver Oil & Gas Inc.Aug 4, 2009 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 7,000
- total depth, ft
- 2
- permits on file
- Aug 4, 2009
- last permit issued
- Apr 8, 1982
- completed
- 117K
- cumulative oil, bbl
- 588K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- OFF SCHEDULE
- Completed
- Apr 8, 1982
- 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 4 leases this well is completed on; they carry 99 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Mathews G-9-253220 | K.W.B. (Canyon) | Arch Oil & Gas, LLC | 1 | 0 | 7.57K | Aug 2009 – Jul 2026 |
| KWB Unit O-9-13227 | K. W. B. (Strawn) | Sonoran Energy Inc. | 88 | 112K | 559K | Jan 1993 – Jul 2026 |
| Mathews Strawn O-9-16265 | K. W. B. (Strawn) | Arch Oil & Gas, LLC | 10 | 4.54K | 21.7K | May 2007 – Jul 2026 |
| — O-9-9241 | — | — | 0 | 0 | 0 | — |
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.
- 1Pyramid Energy, Inc.Jan 1993 → Jun 1994
- 2Rio Grande Drilling CompanyJul 1994 → Dec 1997
- 3Smith Pipe of AbileneJan 1998 → Aug 1998
- 4L.C.S. Production CompanySep 1998 → Jan 1999
- 5Mideast Gas Systems, Inc.Feb 1999 → Aug 2001
- 6Baron Energy Ltd.Sep 2001 → Jul 2005
- 7Sonoran Energy Inc.Apr 2007 → May 2009
- 8Silver Oil & Gas Inc.Apr 2008 → Feb 2012
- 9Bustamante Oil CompanyApr 2012 → Oct 2014
- 107S Oil & Gas, LLCNov 2014 → Oct 2017
- 11Arch Oil & Gas, LLCNov 2017 → Oct 2020
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 683201-99 | Recompletion | Silver Oil & Gas Inc. | Jul 17, 2009 | Aug 4, 2009 | Jul 12, 2009 | 6,459 |
| 152418-99 | Drill | Morrow Resources, Inc. | Mar 4, 1982 | Mar 4, 1982 | Mar 16, 1982 | 7,000 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — G-9-253220 | — | — | — | — |
| — | — O-9-9241 | — | — | — | — |
| — | — O-9-13227 | — | — | — | — |
| — | — O-9-16265 | — | — | — | — |
| — | — O-9-16265 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 2,036 ft elevation.Download CSV →
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 5,473 | 5,501 | Perforated |
| 6,292 | 6,398 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 9.625 | 461 | 11 | 350 S |
| 9.625 | 461 | 12.25 | 350 S |
| 2.375 | 6,163 | — | — |
| 5.5 | 6,450 | 7.875 | 750 S |
| 5.5 | 6,459 | 7.875 | 750 S |
| 5.5 | — | 7.875 | 950 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 | Feb 17, 2010 | Sep 3, 2009 | Yes |
| 00 | Dec 7, 2009 | — | — |
| 00 | Oct 9, 2008 | Sep 12, 2008 | — |
| 00 | Feb 13, 2008 | Apr 26, 1982 | — |
| 00 | Jun 28, 2007 | Apr 26, 1982 | — |
| 00 | Mar 9, 1992 | Apr 26, 1982 | — |
| 00 | Jan 12, 1984 | Apr 26, 1982 | — |
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 42-451-30910 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-451-30910 → 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/45130910, documented in the API reference.