A U.S. court has rejected a last-minute effort by billionaire investor John Fredriksen's Frontline to prevent BW Group from acquiring a major stake in rival oil tanker firm DHT Holdings, DHT said on Thursday. The New York County Supreme Court's decision means that privately-owned BW Group, led by shipping tycoon Andreas Sohmen Pao, can proceed with the sale of 11 very large crude carriers (VLCCs) to DHT in exchange for DHT's shares. "The transaction will proceed as planned, and in fact the first ship is being transferred to DHT today…