In about 20 months, the shipping industry is going to start burning a fuel that today they know next to nothing about.
The International Maritime Organization has set a January 2020 deadline for a new 0.5% sulfur limit on marine fuels. The move is poised to force most shipowners to switch from burning residual fuel oil to a new, unfamiliar, less-sulfurous product.
A study by CE Delft, commissioned by the IMO in 2016 before it decided to cap the sulfur limit, shows demand for less-than 0.5% sulfur...
http://blogs.platts.com/2018/04/02/uncertainty-looms-marine-fuel-sulfur-limit/