WELL · 42-105-02313 · DISTRICT 7
Olson Unit #M121HA
Crockett County · Olson field · Partial Plug · Horizontal
Olson Unit #M121HA (API 42-105-02313) is a permitted horizontal well in Crockett County filed by Aspen Operating Company, L.L.C.; no completion report is on file yet.
The RRC has issued one drilling permit, issued June 15, 2021, permitted to 2,123 ft.
Completion filings report 8 formation tops, including Queen, San Andres, Canyon, Devonian.
Its 2 leases have reported 3.43M barrels of oil and 43 mcf of gas since January 1993, last reporting in July 2026. The leases carry 162 wells, so these are lease totals, not this well alone.
Operator of record
Aspen Operating Company L.L.C.
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 | Aspen Operating Company, L.L.C.Jun 15, 2021 |
- 2,123
- total depth, ft
- 1
- permits on file
- Jun 15, 2021
- last permit issued
- —
- completed
- 3.43M
- cumulative oil, bbl
- 43
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- —
- Shut in
- —
- Plugged
- —
Operator's P-5 on the schedule: Active
Surface location
30.827628, -101.734433
OpenStreetMap → · Google Maps →
Permit surface location from the RRC GIS record, in Crockett County.
Lease production
PDQ LEASE REPORTS · REPORTED THROUGH APR 2026
Texas reports oil by lease, not by well. These are the 2 leases this well is completed on; they carry 162 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Shannon Estate O-9-1138 | Olson | Aspen Operating Company, L.L.C. | 50 | 1.32M | 25 | Jan 1993 – Jul 2026 |
| 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 144,437 · prior 12 158,122(-9%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Marathon Oil CompanyJan 1993 → Nov 1999
- 2Grasha, Matthew P.Jan 1993 → Sep 1993
- 3Las Animas Production CompanyOct 1993 → Sep 1994
- 4Gresham Oil & Gas (USA) Inc.Oct 1994 → Mar 1996
- 5Tracy ProductionApr 1999 → Oct 2007
- 6Henry Petroleum Corp.Dec 1999 → Mar 2001
- 7Henry Petroleum LPApr 2001 → Dec 2004
- 8Aspen Operating Company, L.L.C.Jan 2005 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 870229-99 | Recompletion | Aspen Operating Company, L.L.C. | Jun 2, 2021 | Jun 15, 2021 | Jul 6, 2021 | 2,123 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — O-9-1138 | — | — | — | — |
| — | — O-9-4689 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 2,466 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Queen | 1,656 | 810 |
| San Andres | 1,860 | 606 |
| Canyon | — | — |
| Devonian | — | — |
| Ellenburger | — | — |
| Leonard | — | — |
| Strawn | — | — |
| Wolfcamp | — | — |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 1,900 | 4,594 | Open hole |
| — | 2,020 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 8.625 | 715 | 11 | 400 S |
| 5.5 | 2,123 | 7.875 | 450 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 | Oct 13, 2022 | Jul 11, 2022 | — |
| 00 | Jan 12, 1984 | — | — |
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 42-105-02313 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-105-02313 → 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.
Nearby wells and their tops
NEAREST 8 LOCATED WELLS WITH TOPS · WITHIN 16 KM
Draw a cross-section
This well's tops beside its 5 nearest neighbours, subsea-aligned so they line up regardless of surface terrain.
Shannon Estate 'M-1'42-105-35953
0.5 KM · Marathon Oil Company · Section with this well →
| Salado | 779 | 1,741 |
| Yates | 1,073 | 1,447 |
| Seven Rivers | 1,200 | 1,320 |
| Queen | 1,688 | 832 |
| San Andres | 1,900 | 620 |
| Greyburg | 1,900 | 620 |
| Leonard | — | |
| Devonian | — |
12 TOPS · FIRST 8
Shannon Estate -M-1-42-105-02307
0.7 KM · Henry Petroleum Corp. · Section with this well →
| Yates | 1,214 | |
| Seven Rivers | 1,332 | |
| Queen | 1,804 | |
| San Andres | 2,124 |
Shannon Estate "O"42-105-35509
0.7 KM · Marathon Oil Company · Section with this well →
| Queen | 1,500 | 1,015 |
| San Andres | 2,050 | 465 |
| Devonian | — | |
| Canyon | — | |
| Ellenburger | — | |
| Leonard | — | |
| Strawn | — | |
| Wolfcamp | — |
Shannon Estate42-105-41075
0.9 KM · Aspen Operating Company, L.L.C. · Section with this well →
| Queen | 1,500 | 1,016 |
| Grayburg | 1,973 | 543 |
| San Andres | 2,035 | 481 |
| Leonard | — | |
| Devonian | — | |
| Wolfcamp | — | |
| Strawn | — | |
| Ellenburger | — |
9 TOPS · FIRST 8
Shannon Estate42-105-41060
1.1 KM · Aspen Operating Company, L.L.C. · Section with this well →
| Yates | 1,258 | 1,252 |
| Seven Rivers | 1,379 | 1,131 |
| Queen | 1,854 | 656 |
| San Andres | 2,016 | 494 |
| Leonard | 3,100 | -590 |
Shannon Hospital 142-105-42467
1.4 KM · Eastland Oil Company, The · Section with this well →
| Rustler | 658 | |
| Yates | 1,115 | |
| Seven Rivers | 1,270 | |
| Queen | 1,778 | |
| Greyburg | 1,980 | |
| San Andres | 2,043 | |
| Leonard | 3,790 | |
| Wolfcamp | 5,215 |
10 TOPS · FIRST 8
Olson Unit42-105-35173
1.5 KM · Marathon Oil Company · Section with this well →
| Yates | 1,212 | 1,474 |
| Seven Rivers | 1,327 | 1,359 |
| Soma | 1,369 | 1,317 |
| Queen | 1,755 | 931 |
| San Andres | 2,002 | 684 |
| Canyon | — | |
| Devonian | — | |
| Ellenburger | — |
11 TOPS · FIRST 8
Eagle Draw ''10''42-105-42471
1.6 KM · Avad Operating, LLC · Section with this well →
| Queen | 1,904 | 798 |
| San Andres | 2,077 | 625 |
| Wolfcamp | 5,110 | -2,408 |
| Leonard | — | |
| Ellenburger | — | |
| Devonian | — | |
| Strawn | — | |
| Canyon | — |
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/10502313, documented in the API reference.