WELL · 42-105-35509 · DISTRICT 7
Shannon Estate #O 28HA
Crockett County · Olson field · Horizontal
Shannon Estate #O 28HA (API 42-105-35509) is a horizontal well in Crockett County operated by Aspen Operating Company L.L.C., completed June 15, 1988.
The RRC has issued 2 drilling permits between 1988 and 2018, permitted to 2,500 ft.
Completion filings report 8 formation tops, including Queen, San Andres, Canyon, Devonian.
Its 2 leases have reported 2.39M barrels of oil and 46 mcf of gas since January 1993, last reporting in July 2026. The leases carry 74 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.Aug 21, 2018 |
- 2,500
- total depth, ft
- 2
- permits on file
- Aug 21, 2018
- last permit issued
- Jun 15, 1988
- completed
- 2.39M
- cumulative oil, bbl
- 46
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- OFF SCHEDULE
- Completed
- Jun 15, 1988
- Shut in
- —
- Plugged
- —
Surface location
30.833991, -101.734714
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 74 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 |
| Shannon, M. A., Est. -O- O-9-1137 | Olson | Aspen Operating Company, L.L.C. | 24 | 1.07M | 21 | Jan 1993 – Jun 2015 |
Oil, barrels lease total
Last 12 months 143,246 · prior 12 156,924(-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 |
|---|---|---|---|---|---|---|
| 843698-99 | Recompletion | Aspen Operating Company, L.L.C. | Aug 16, 2018 | Aug 21, 2018 | — | 2,315 |
| 344995-99 | Drill | Marathon Oil Company | Apr 11, 1988 | Apr 20, 1988 | — | 2,500 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — O-9-1137 | — | — | — | — |
| — | — O-9-1138 | — | — | — | — |
| — | — O-9-1138 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 2,515 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Queen | 1,500 | 1,015 |
| San Andres | 2,050 | 465 |
| San Andres | 2,080 | 435 |
| Canyon | — | — |
| Devonian | — | — |
| Ellenburger | — | — |
| Leonard | — | — |
| Strawn | — | — |
| Wolfcamp | — | — |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 2,042 | 2,057 | Open hole |
| 2,065 | 2,093 | Perforated |
| 2,275 | 2,763 | Open hole |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 8.625 | 705 | 12.25 | 505 S |
| 5.5 | 2,304 | 7.875 | 900 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 | Mar 20, 2019 | Oct 19, 2018 | Yes |
| 00 | May 4, 2015 | Jul 5, 1988 | Yes |
| 00 | Jul 14, 1988 | Jul 5, 1988 | Yes |
| 00 | Jul 13, 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 42-105-35509 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-105-35509 → 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 Estate42-105-41075
0.2 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 |
| Devonian | — | |
| Strawn | — | |
| Leonard | — | |
| Ellenburger | — | |
| Wolfcamp | — |
9 TOPS · FIRST 8
Shannon Estate42-105-41060
0.6 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 Estate42-105-02313
0.7 KM · Aspen Operating Company, L.L.C. · Section with this well →
| Queen | 1,656 | 810 |
| San Andres | 1,860 | 606 |
| Canyon | — | |
| Wolfcamp | — | |
| Strawn | — | |
| Leonard | — | |
| Ellenburger | — | |
| Devonian | — |
Shannon Estate 'M-1'42-105-35953
0.9 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 |
| Devonian | — | |
| Ellenburger | — |
12 TOPS · FIRST 8
Shannon Estate -M-1-42-105-02307
1.0 KM · Henry Petroleum Corp. · Section with this well →
| Yates | 1,214 | |
| Seven Rivers | 1,332 | |
| Queen | 1,804 | |
| San Andres | 2,124 |
Shannon Hospital 142-105-42467
1.0 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
Shannon Estate42-105-32511
1.1 KM · Sun Exploration & Production Co. · Section with this well →
| Soma Sand | 1,314 | 1,262 |
| Queen | 1,990 | 586 |
| San Andres | 2,134 | 442 |
| Wolfcamp | — | |
| Strawn | — | |
| Leonard | — | |
| Ellenburger | — | |
| Devonian | — |
9 TOPS · FIRST 8
Shannon Hospital 1C42-105-42552
2.1 KM · Stone Creek Operating, LLC · Section with this well →
| Queen | 2,250 | 286 |
| San Andres | 2,475 | 61 |
| Leonard | 3,845 | -1,309 |
| Wolfcamp | 5,766 | -3,230 |
| Ellenburger | — | |
| Devonian | — | |
| Strawn | — | |
| Canyon | — |
Beyond the permit record
RRC UIC permits · H-10 reported volumes
Injection
- 0
- bbl, last 12 reported months
- 0
- bbl, all reported
- Jul 2025
- reported through
| UIC | Kind | Status | Permitted bbl/d | Max psi | Zone ft |
|---|---|---|---|---|---|
| 000102443 | H-1 Injection | Not activated | 20,000 | 1,015 | 2,030–2,797 |
MONTHLY INJECTED, BBL · H-10 · LAST 24 REPORTED MONTHS
Last 12 months 0 · prior 12 0
TexNet catalog via USGS
Seismicity near this well
- 0
- M2+ events within 10 km, last 2 years
- —
- largest
A proximity count, not an attribution. How to read it →
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/10535509, documented in the API reference.