Carrier profile · USDOT 1340999 · Updated Jun 13, 2026
Doug O'bryan Contracting Inc
3 power unitsMARTIN, SD50/100
AUTHORITY STATUS UNKNOWNHAZMAT
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
- 21617 HIGHWAY 18, MARTIN, SD, 57551
- Mailing address
- 21617 US HWY 18, MARTIN, SD, 57551
- Operation
- Intrastate (Non-Hazmat)· Hazmat
Contact
- Phone
- (605) 685-6281
- Cell
- (605) 685-3641
- Fax
- (605) 685-6960
- doci@gwtc.net
- Web domain
- gwtc.net
Registration
- Officer
- Doug O'Bryan
- USDOT / docket
- 1340999
- First registered
- Mar 3, 2005
- Last MCS-150
- Jul 9, 2025 · 10,000 mi (2006)
- FMCSA safety rating
- Not rated
- Recordable crash rate
- 0.00
- D-U-N-S
- 41753088
Fleet (self-reported · MCS-150)
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.