Fuel prices can be found at Bunkerworld although a subscription is required
Finally shipping is infamous for using low grade bunker fuel (hence the named site above) which is highly polluting and results in large emissions of Nitrous and sulphurous compounds - amongst other nasties.
Recent OECD legislation requires shipping companies to reduce sulphur emissions:
Reuters: Container Shipping Firms' costs soar on new fuel rules OECD
Whilst this does not directly answer your question John, this can be calculated. The Reuters article quotes Danish shipping firm MaerskFrom January 2015, ships entering Emissions Control Areas from the Baltics to the North American coast had to switch to ship fuels with less than 0.1 percent sulfur content, from 1 percent, as part of a campaign to combat marine pollution.
An even lower cap of 0.50 percent is planned for 2020 and it could add annual total costs of around $5 billion to $30 billion for the container shipping industry, the Organisation for Economic Co-operation and Development (OECD) report said.
I haven't had time as yet to look at Maersk's accounts - however it is something that can be calculatedMaersk Line, the global container shipping market leader, has said weak enforcement combined with the significant cost burden could prompt some shipping companies to flout the rules.
Maersk Line, a unit of Danish shipping and oil group A.P. Moller-Maersk, spent $6.1 billion on ship fuel last year of which 7 percent spent on buying the more expensive fuel.
Then there is the issue of enforcement of OECD rules...
