BHP Billiton drops 10-year-run with Teekay for non-unionized upstart

[caption id="attachment_838340" align="alignnone" width="600"] Port Hedland[/caption] BHP Billiton announced on Monday that it had selected Rivtow Marine to operate its entire towage fleet in Port Hedland. Rivtow Marine, an Australian-based towage operator, displaced publicly-traded Teekay Marine which had held the contract for over a...