Shareholders of the Carnival Cruise Lines (CCL) are eligible for up to $250 onboard credit (OBC) if they own at least 100 shares of Carnival stock. Carnival Cruise Lines includes Carnival, Aida, Costa, Cunard, Holland America, P&O, Princess, and Seabourn. The onboard … [Read more...] about Carnival Cruise Line Shareholders Can Receive Onboard Credits