WELL · 42-105-37408 · DISTRICT 7
Olson Unit #1208
Crockett County · Olson field · Shut IN · Vertical
Olson Unit #1208 (API 42-105-37408) is a well in Crockett County operated by Aspen Operating Company L.L.C., completed November 26, 1996 and listed as shut in on the RRC schedule.
The RRC has issued one drilling permit, issued September 25, 1996, permitted to 2,400 ft.
It was permitted by Marathon Oil Company and has since transferred to Aspen Operating Company L.L.C. on the wellbore schedule.
Completion filings report 3 formation tops, including Clear Fork, Grayburg, San Andres.
Its lease has reported 2.11M barrels of oil and 18 mcf of gas since January 1993, last reporting in July 2026. The lease carries 112 wells, so these are lease totals, not this well alone.
Operator of record
Aspen Operating Company L.L.C.
Permitted by Marathon Oil Company; the EWA schedule now lists a different operator.
Fort Worth, TX · P-5 Y, filed Nov 4, 2025 · 124 permits on file · (817) 455-2311
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Aspen Operating Company L.L.C. |
| Production reports | Aspen Operating Company, L.L.C.through Apr 2026 |
| Latest permit | Marathon Oil CompanySep 25, 1996 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 2,400
- total depth, ft
- 1
- permits on file
- Sep 25, 1996
- last permit issued
- Nov 26, 1996
- completed
- 2.11M
- cumulative oil, bbl
- 18
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Nov 26, 1996
- 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; they carry 112 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Olson Unit O-9-4689 | Olson | Aspen Operating Company, L.L.C. | 112 | 2.11M | 18 | Jan 1993 – Jul 2026 |
Oil, barrels lease total
Last 12 months 1,191 · prior 12 1,198(-1%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Marathon Oil CompanyJan 1993 → Nov 1999
- 2Henry Petroleum Corp.Dec 1999 → Mar 2001
- 3Henry Petroleum LPApr 2001 → Dec 2004
- 4Aspen Operating Company, L.L.C.Jan 2005 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 453125-99 | Drill | Marathon Oil Company | Sep 25, 1996 | Sep 25, 1996 | Nov 11, 1996 | 2,400 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — O-9-4689 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 2,647 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Clear ForkCLEARFORK | 2,082 | 565 |
| Grayburg | 2,098 | 549 |
| San Andres | 2,132 | 515 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 2,168 | 2,234 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 8.625 | 712 | 11 | 225 S |
| 5.5 | 2,480 | 7.875 | 575 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 10, 1997 | Dec 20, 1996 | Yes |
| 00 | Jan 7, 1997 | — | — |
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 42-105-37408 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-105-37408 → 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/10537408, documented in the API reference.