WELL · 42-493-31483 · DISTRICT 1
M-W Unit #1
Wilson County · Marcelina Creek (Austin Chalk) field · Vertical
M-W Unit #1 (API 42-493-31483) is a plugged well in Wilson County, plugged February 5, 1987, last operated by South Texas Oil Field Equipment.
The RRC has issued one drilling permit, issued December 8, 1983, permitted to 10,000 ft.
It was permitted by Coquina Oil Corporation and has since transferred to South Texas Oil Field Equipment on the wellbore schedule.
Completion filings report 4 formation tops, including Austin Chalk, Eagle Ford, Buda, Del Rio.
Operator of record
South Texas Oil Field Equipment
Permitted by Coquina Oil Corporation; the EWA schedule now lists a different operator.
Austin, TX · P-5 Y, filed Oct 15, 1986
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | South Texas Oil Field Equipment |
| Production reports | none |
| Latest permit | Coquina Oil CorporationDec 8, 1983 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 10,000
- total depth, ft
- 1
- permits on file
- Dec 8, 1983
- last permit issued
- Jul 22, 1984
- completed
- —
- cumulative oil, bbl
- —
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS
Regulatory status · RRC wellbore file
- Schedule
- OFF SCHEDULE
- Completed
- Jul 22, 1984
- Shut in
- —
- Plugged
- Feb 5, 1987
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.
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 223198-99 | Drill | Coquina Oil Corporation | Dec 8, 1983 | Dec 8, 1983 | Mar 1, 1984 | 10,000 |
Formation tops
As filed on W-2/G-1. Subsea from 403 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Austin Chalk | 8,300 | -7,897 |
| Eagle Ford | 8,608 | -8,205 |
| Buda | 8,676 | -8,273 |
| Del Rio | 8,776 | -8,373 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 8,601 | 8,339 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 8.625 | 3,528 | 12.25 | 1,350 sx |
| 5.5 | 8,809 | 7.875 | 880 sx |
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 | Aug 22, 1984 | Aug 16, 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 42-493-31483 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-493-31483 → 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/49331483, documented in the API reference.