WELL · 42-413-31303 · DISTRICT 7
Olsak 105 #1
Schleicher County · Eldorado South (Canyon) field · Producing · Vertical
Olsak 105 #1 (API 42-413-31303) is a well in Schleicher County operated by TS Oil LLC, completed January 15, 1983 and listed as producing on the RRC schedule.
The RRC has issued one drilling permit, issued February 7, 1983, permitted to 6,650 ft.
It was permitted by Tamarack Petroleum Company, Inc. and has since transferred to TS Oil LLC on the wellbore schedule.
No lease production has been reported under this well’s leases.
Operator of record
Permitted by Tamarack Petroleum Company, Inc.; the EWA schedule now lists a different operator.
River Oaks, TX · P-5 Y, filed Dec 4, 2025 · 1 permits on file · (817) 688-3435
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | TS Oil LLC |
| Production reports | TS Oil, LLCthrough Apr 2026 |
| Latest permit | Tamarack Petroleum Company, Inc.Feb 7, 1983 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 6,650
- total depth, ft
- 1
- permits on file
- Feb 7, 1983
- last permit issued
- Jan 15, 1983
- completed
- 0
- cumulative oil, bbl
- 586K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Jan 15, 1983
- Shut in
- —
- Plugged
- —
Operator's P-5 on the schedule: X
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 |
|---|---|---|---|---|---|---|
| Olsak "105" G-9-103984 | Eldorado, South (Canyon) | TS Oil, LLC | 1 | 0 | 586K | Jan 1993 – Jul 2026 |
Gas, mcf lease total
Last 12 months 15,549 · prior 12 5,274(+195%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Tamarack Petroleum Company, Inc.Jan 1993 → Aug 2019
- 2GTG Operating, LLCSep 2019 → Feb 2025
- 3TS Oil, LLCMar 2025 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 185434-99 | Drill | Tamarack Petroleum Company, Inc. | Feb 7, 1983 | Feb 7, 1983 | — | 6,650 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — G-9-103984 | — | — | — | — |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 6,395 | 6,547 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 8.625 | 726 | 11 | 300 S |
| 2.375 | 6,342 | — | — |
| 5.5 | 6,650 | 7.875 | 400 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 | Jan 12, 1984 | Feb 15, 1983 | — |
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 42-413-31303 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-413-31303 → scanned completion filings
Log images are in archives with no per-well link: the RRC's Neubus archive (2004 onward) and the University Lands library. 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/41331303, documented in the API reference.