WELL · 42-105-35430 · DISTRICT 7
Shannon #1
Crockett County · Shannon (San Andres) field · NO Production · Vertical
Shannon #1 (API 42-105-35430) is a well in Crockett County operated by M.A.R.S. Energy, completed October 17, 1987 and listed as no production on the RRC schedule.
The RRC has issued one drilling permit, issued August 26, 1987, permitted to 2,500 ft.
It was permitted by Grover Oil Company and has since transferred to M.A.R.S. Energy on the wellbore schedule.
Completion filings report 3 formation tops, including Queen, Grayburg, San Andres.
Its lease has reported 8.86K barrels of oil and 3.23K mcf of gas since January 1993, last reporting in July 2026.
Operator of record
Permitted by Grover Oil Company; the EWA schedule now lists a different operator.
Midland, TX · P-5 Y, filed Mar 4, 2026 · 5 permits on file · (325) 428-7988
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | M.A.R.S. Energy |
| Production reports | M.A.R.S. Energythrough Dec 2023 |
| Latest permit | Grover Oil CompanyAug 26, 1987 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 2,500
- total depth, ft
- 1
- permits on file
- Aug 26, 1987
- last permit issued
- Oct 17, 1987
- completed
- 8.86K
- cumulative oil, bbl
- 3.23K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Oct 17, 1987
- 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 |
|---|---|---|---|---|---|---|
| Shannon O-9-12312 | Shannon (San Andres) | M.A.R.S. Energy | 1 | 8.86K | 3.23K | Jan 1993 – Jul 2026 |
Oil, barrels lease total
Last 12 months 0 · prior 12 0
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Grover-McKinney Oil CompanyJan 1993 → Feb 1995
- 2Reliance Operating CompanyMar 1995 → Aug 1995
- 3TidlowSep 1995 → Sep 2006
- 4Pharaoh Oil & Gas, Inc.Aug 2008 → Jan 2011
- 5Artifex Energy IncJan 2012 → Jun 2021
- 6M.A.R.S. EnergyJul 2021 → Dec 2023
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 334971-99 | Drill | Grover Oil Company | Aug 24, 1987 | Aug 26, 1987 | Sep 10, 1987 | 2,500 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — O-9-12312 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 2,702 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Queen | 1,990 | 712 |
| Grayburg | 2,040 | 662 |
| San Andres | 2,210 | 492 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 2,253 | 2,440 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 8.625 | 715 | 11 | 320 S |
| 4.5 | 2,597 | 7.875 | 200 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 | Nov 23, 1987 | Nov 9, 1987 | Yes |
| 00 | Nov 18, 1987 | — | — |
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 42-105-35430 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-105-35430 → 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/10535430, documented in the API reference.