The loser in the battle for a $2.68 billion contract to run Massachusetts commuter rail trains is not going away quietly, vowing that it will appeal to state officials Friday to change their minds.

Executives from the Massachusetts Bay Commuter Railroad Co. said they intend to argue that the newcomer chosen to run the trains, Keolis Commuter Services, failed to provide crucial information to the state during the selection process. Massachusetts Bay, known widely by the acronym MBCR, said it will assert that state transportation officials turned a blind eye to those omissions.

Read the complete story at The Boston Globe.