Marine Transport Corporation announced that David Roggenbeck has been appointed Director of ATB operations effective February 1. distribution and transportation services segment. office. He will report to Vic Goldberg, Vice President of Ship Management. Operations and Captain Igor Loch, Manager, ATB Operations. construction. three of which have been placed into service on the U.S. West Coast by Marine Transport subsidiary Intrepid Ship Management. sister vessels on the West Coast. Roggenbeck joined Crowley in 1979 as a Port Engineer. supervision of Crowley's oil barge operations. vessels serving the South American and Caribbean trades.