WELL · 42-227-35908 · DISTRICT 8
Shafer #1 A
Howard County · Sara-Mag (Canyon Reef) field · Vertical
Shafer #1 A (API 42-227-35908) is a plugged well in Howard County, plugged March 20, 2009, last operated by Probe Exploration Company.
The RRC has issued one drilling permit, issued October 29, 2004, permitted to 7,600 ft.
Completion filings report 4 formation tops, including San Andres, T/Upper Clearfork, Clear Fork, Wolfcamp.
Its lease has reported 4.09K barrels of oil and 8.14K mcf of gas since May 2005, last reporting in July 2009.
Operator of record
Abilene, TX · P-5 Y, filed Oct 4, 2025 · 20 permits on file · (325) 668-8749
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Probe Exploration Company |
| Production reports | Probe Exploration Companythrough Sep 2008 |
| Latest permit | Probe Exploration CompanyOct 29, 2004 |
- 7,600
- total depth, ft
- 1
- permits on file
- Oct 29, 2004
- last permit issued
- May 14, 2005
- completed
- 4.09K
- cumulative oil, bbl
- 8.14K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · May 2005 THROUGH Jul 2009
Regulatory status · RRC wellbore file
- Schedule
- OFF SCHEDULE
- Completed
- May 14, 2005
- Shut in
- —
- Plugged
- Mar 20, 2009
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 |
|---|---|---|---|---|---|---|
| Shafer O-10-37542 | Sara-Mag (Canyon Reef) | Probe Exploration Company | 1 | 4.09K | 8.14K | May 2005 – Jul 2009 |
No volumes reported on these leases in the last three years.
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Probe Exploration CompanyMay 2005 → Sep 2008
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 552977-99 | Drill | Probe Exploration Company | Oct 29, 2004 | Oct 29, 2004 | Apr 8, 2005 | 7,600 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — O-10-37542 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 2,392 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| San Andres | 3,084 | -692 |
| T/Upper Clearfork | 4,464 | -2,072 |
| Clear ForkBASE LOWER CLEARFORK | 4,676 | -2,284 |
| Wolfcamp | 6,010 | -3,618 |
| WolfcampBASE WOLFCAMP | 6,668 | -4,276 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 7,449 | 7,474 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 8.625 | 2,477 | 11 | 875 S |
| 5.5 | 7,447 | 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 26, 2005 | May 26, 2005 | Yes |
| 00 | Aug 17, 2005 | — | — |
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 42-227-35908 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-227-35908 → scanned completion filings
Log images are in archives with no per-well link: the RRC's Neubus archive (2004 onward). 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/22735908, documented in the API reference.