WELL · 42-211-31869 · DISTRICT 10
Studer #1
Hemphill County · Mathers Ranch (Granite Wash) field · Temp Abandoned · Vertical
Studer #1 (API 42-211-31869) is a well in Hemphill County operated by Presidio Petroleum LLC, completed January 29, 1988 and listed as temp abandoned on the RRC schedule.
The RRC has issued one drilling permit (amended once), issued September 29, 1987, permitted to 12,000 ft.
It was permitted by Jcr, JR - Operating, Inc. and has since transferred to Presidio Petroleum LLC on the wellbore schedule.
Completion filings report 7 formation tops, including Brown Dolomite, Douglas, Tonkawa, Cherokee.
No lease production has been reported under this well’s leases.
Operator of record
Permitted by JCR, Jr - Operating, Inc.; the EWA schedule now lists a different operator.
Canadian, TX · P-5 Y, filed Feb 4, 2026 · 13 permits on file · (800) 461-1604
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Presidio Petroleum LLC |
| Production reports | Presidio Petroleum LLCthrough Sep 2021 |
| Latest permit | JCR, Jr - Operating, Inc.Sep 29, 1987 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 12,000
- total depth, ft
- 2
- permits on file
- Sep 29, 1987
- last permit issued
- Jan 29, 1988
- completed
- 0
- cumulative oil, bbl
- 29.1K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Jan 29, 1988
- Shut in
- —
- Plugged
- —
Operator's P-5 on the schedule: Active
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 |
|---|---|---|---|---|---|---|
| Studer G-14-128788 | Mathers Ranch (Granite Wash) | Presidio Petroleum LLC | 1 | 0 | 29.1K | Jan 1993 – Jul 2026 |
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.
- 1J-Brex CompanyApr 1995 → Mar 2016
- 2LE Norman Operating LLCApr 2016 → Jun 2019
- 3Templar Operating LLCJul 2019 → Dec 2019
- 4Presidio Petroleum LLCJan 2020 → Sep 2021
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 336645-98 | Drill | JCR, Jr - Operating, Inc. | Nov 1, 1988 | Sep 29, 1987 | — | 12,000 |
| 336645-99 | Drill | JCR, Jr - Operating, Inc. | Sep 29, 1987 | Sep 29, 1987 | — | 12,000 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — G-14-128788 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 2,470 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Brown Dolomite | 3,830 | -1,360 |
| Douglas | 6,995 | -4,525 |
| Tonkawa | 7,750 | -5,280 |
| Cherokee | 9,940 | -7,470 |
| Granite Wash | 10,212 | -7,742 |
| 13 Finger Lime | 11,350 | -8,880 |
| Morrow | 11,470 | -9,000 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 10,212 | 10,224 | Perforated |
| 10,370 | 10,377 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 8.625 | 2,098 | 11.25 | 1,150 S |
| 5.5 | 11,502 | 7.875 | 360 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 | Nov 16, 1988 | Feb 17, 1988 | Yes |
| 00 | Nov 8, 1988 | — | — |
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 42-211-31869 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-211-31869 → 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/21131869, documented in the API reference.