According to data from Affin ity Shipbrokers, the current new tanker order book stands at 447 vessels, or 61.4 million deadweight tons, which is 11.3% of the existing fleet. The bulk of this newcapacity is to be delivered in 2019-2020, boosting supply and weakening the negotiating clout of ship owners at a critical time as the market adjusts to new bunker prices. Charterers such as oil majors, refineries and traders will likely be able to use that to cap Worldscale rates for their cargoes, forcing ship owners to absorb a larger share of the growing bunker expenses themselves.