Who is the lucky seller of oil hedges?

Everyone thought that US shale oil producers would get killed by the drop in oil prices. Turns out that they were smart enough to hedge their production back when the prices were high. For example, Miller Energy hedged 1.4 billion barrels of oil at around $95 until the end of 2016. Someone is going to have to mark-to-market $36 billion in losses (and that’s just for one of the producers), and I wonder who the lucky owner will be.