Saudi's win through fear

OPEC will hold back a total of roughly 1.7 million barrels a day from global oil markets, deepening the current curb of 1.2 million barrels a day. The move came after Saudi Arabia threatened to boost oil production unilaterally if some OPEC nations continued failing to comply with the group’s output curbs. This means:  Diesel prices will continue to rise! 
This expands an opening for some interesting technology to move trailers in the yard:  Firefly offers spotting using an electric dock switcher (aka spotting horse, aka hostler, aka dock potter).  Seems to payout well in high cost/high subsidy locations like California – can run most of the day and eliminate diesel smoke in the warehouse.