Two prominent Greek shipowners, a major Chinese firm and one of the world’s largest public VLCC players are believed to have scored profitable contracts with shale oil producer Occidental Petroleum.

The deals mark the US energy company's first major move in the VLCC time-charter market at a time it is developing its infrastructure in the US Gulf.

John Angelicoussis, Onassis company Olympic Shipping & Management and New York-listed DHT Holdings are all understood to have locked VLCCs into long-term contracts.