WELL · 42-023-31666 · DISTRICT 9
Upshur 83 #1
Baylor County · Baylor County Regular field · Vertical
Upshur 83 #1 (API 42-023-31666) is a plugged well in Baylor County, plugged April 14, 2022, last operated by Mash Oilfield Services LP.
The RRC has issued one drilling permit, issued February 26, 2014, permitted to 4,950 ft.
It was permitted by Clark, John M., Inc. and has since transferred to Mash Oilfield Services LP on the wellbore schedule.
Completion filings report 10 formation tops, including Canyon, Palo Pinto, Strawn, Cisco.
Its lease has reported 10.1K barrels of oil and 8.89K mcf of gas since April 2014, last reporting in April 2022.
Operator of record
Permitted by Clark, John M., Inc.; the EWA schedule now lists a different operator.
Graham, TX · P-5 Y, filed May 4, 2026 · 1 permits on file · (940) 456-1223
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Mash Oilfield Services LP |
| Production reports | Clark, John M., Inc.through Feb 2021 |
| Latest permit | Clark, John M., Inc.Feb 26, 2014 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 4,950
- total depth, ft
- 1
- permits on file
- Feb 26, 2014
- last permit issued
- Apr 4, 2014
- completed
- 10.1K
- cumulative oil, bbl
- 8.89K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Apr 2014 THROUGH Apr 2022
Regulatory status · RRC wellbore file
- Schedule
- OFF SCHEDULE
- Completed
- Apr 4, 2014
- Shut in
- —
- Plugged
- Apr 14, 2022
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; this well is the only one on it.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Upshur 83 O-13-32951 | Baylor County Regular | Mash Oilfield Services, LP | 1 | 10.1K | 8.89K | Apr 2014 – Apr 2022 |
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.
- 1Clark, John M., Inc.Apr 2014 → Feb 2021
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 779893-99 | Drill | Clark, John M., Inc. | Feb 14, 2014 | Feb 26, 2014 | Mar 11, 2014 | 4,950 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — O-13-32951 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 1,328 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| CanyonCANYON REEF | 2,280 | -952 |
| Palo Pinto | 2,280 | -952 |
| Strawn | 3,618 | -2,290 |
| Cisco | — | — |
| Coleman JunctionCOLEMAN JUNCTION - CORROSIVE ZON | — | — |
| GunsightGUNSIGHT SAND | — | — |
| Home Creek | — | — |
| Saddle Creek | — | — |
| TannehillTANNEHILL SAND | — | — |
| Thomas Sand | — | — |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 4,800 | 4,815 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 8.625 | 211 | 12.25 | 130 S |
| 5.5 | 4,899 | 7.875 | 175 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 | Aug 26, 2014 | Aug 11, 2014 | 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 42-023-31666 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-023-31666 → 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/02331666, documented in the API reference.