Shuttle tankers meeting rigorous federal safety and environmental standards will be ready to begin transporting crude oil to U.S. ports whenever the first Floating Production, Storage and Offloading (FPSO) vessel is deployed in the Gulf of Mexico, Houston-based American Shuttle Tankers L.L.C. (AST) said today. "In the weeks since the Minerals Management Service (MMS) approved the use of FPSOs in the Gulf of Mexico, companies evaluating development options for deepwater oil discoveries in the U.S. solutions", said Oyvind Jordanger, president of AST. American Shuttle Tankers, which was formed last year by the top crude oil lightering company in the Gulf of Mexico and the leading shuttle tanker service provider in the North Sea…