



The 1964–68 livery used a crescent from the original owners and an oil-drilling-rig symbol in the flag’s fly.
After joining Offshore Supply Association, vessels used its markings until Offshore Marine severed the connection in 1973. This is Loughran’s version; OSA markings differ among sources.
Adopted after the 1968 Cunard takeover, the livery substitutes Cunard’s logo for Rochester’s and shows the drilling rig more realistically. The funnel design represents an oil drop rising from an undersea gusher; Canadian Offshore Marine used a similar funnel. Marinart incompletely describes and depicts the O-over-M logo.