Carrier profile · USDOT 1547489 · Updated Jun 13, 2026

FOUR-S INC

DBA COTTER OIL CO

1 power unitBUFFALO, OK50/100
AUTHORITY STATUS UNKNOWNHAZMAT
Verified linksFMCSA SAFER

Identity & Federal

The official FMCSA identity — legal name, DBA, addresses, contact, officers, and registration — alongside the daily-captured federal-record activity feed, monitored daily by Vektor.

Location

Physical address
203 S HOY, BUFFALO, OK, 73834
Mailing address
PO BOX 517, BUFFALO, OK, 73834
Operation
Intrastate (Hazmat)· Hazmat

Contact

Phone
(580) 735-2140
Fax
(580) 735-6166
Email
—

Registration

Officers
Steve Wilson · Sidney D Herd
USDOT / docket
1547489
First registered
Aug 28, 2006
Last MCS-150
Oct 26, 2010 · 31,500 mi (2009)
FMCSA safety rating
Not rated
Recordable crash rate
0.00
D-U-N-S
—

Fleet (self-reported · MCS-150)

1Power units
1Drivers
—CDL drivers
31,500Annual mileage

MCS-150 filing history· biennial-update cadence

Per-filing MCS-150 history (each biennial update + the fleet/mileage it reported) is being captured from the daily federal feed and will appear here as we capture the full history.

Federal record activity· monitored daily by Vektor

No licensing or insurance changes captured since Vektor began monitoring this carrier (June 2026). Quiet is usually good.