WELL · 42-059-35440 · DISTRICT 7
Mask #1
Callahan County · Callahan County Regular field · Shut IN · Vertical
Mask #1 (API 42-059-35440) is a well in Callahan County operated by Sandstone Services LLC, completed October 1, 1985 and listed as shut in on the RRC schedule.
The RRC has issued one drilling permit, issued September 24, 1985, permitted to 700 ft.
It was permitted by Brown, Michael D. and has since transferred to Sandstone Services LLC on the wellbore schedule.
Its lease has reported 2.8K barrels of oil and 110 mcf of gas since January 1993, last reporting in July 2026. The lease carries 14 wells, so these are lease totals, not this well alone.
Operator of record
Permitted by Brown, Michael D.; the EWA schedule now lists a different operator.
Graham, TX · P-5 Y, filed Jan 5, 2026 · 3 permits on file · (817) 665-9499
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Sandstone Services LLC |
| Production reports | Sandstone Services, LLCthrough Nov 2024 |
| Latest permit | Brown, Michael D.Sep 24, 1985 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 700
- total depth, ft
- 1
- permits on file
- Sep 24, 1985
- last permit issued
- Oct 1, 1985
- completed
- 2.8K
- cumulative oil, bbl
- 110
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Oct 1, 1985
- Shut in
- —
- Plugged
- —
Operator's P-5 on the schedule: Delinquent
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; they carry 14 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Mask O-8-23199 | Callahan County Regular | Sandstone Services, LLC | 14 | 2.8K | 110 | Jan 1993 – Jul 2026 |
Oil, barrels lease total
Last 12 months 0 · prior 12 7(-100%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Parker Operating Co., Inc.Jan 1993 → Apr 1994
- 2Targo Oil & Gas, Inc.Sep 1994 → Aug 2002
- 3Twin Pines Petroleum CompanySep 2002 → Nov 2004
- 4Colo Exploration Company, Inc.May 2005 → Jul 2005
- 5P.B. Blue Dot PropertiesJul 2008 → Aug 2011
- 6RG1 Energy, LLCFeb 2014 → Jun 2014
- 7RG1 Energy, Inc.Jul 2014 → May 2016
- 8Royal Texan Resources Co.Jun 2016 → Jul 2019
- 9Drillogix Exploration LLCOct 2019 → Aug 2020
- 10Sandstone Services, LLCSep 2020 → Nov 2024
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 285651-99 | Drill | Brown, Michael D. | Sep 24, 1985 | Sep 24, 1985 | — | 700 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — O-8-23199 | — | — | — | — |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 490 | 492 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 4.5 | 537 | 6.75 | 100 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 | Dec 31, 1985 | Nov 7, 1985 | Yes |
| 00 | Dec 13, 1985 | — | — |
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 42-059-35440 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-059-35440 → 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/05935440, documented in the API reference.