A bankruptcy auction is still weeks away, but the price of Optim Energy's Twin Oaks power plant continues to jump, with Texas giant Energy Future Holdings Corp. signaling it could go as high as $87.5 million for the facility, Dow Jones Daily Bankruptcy Review reported today. Optim is selling the coal-fired plant to help pay off its debts in chapter 11. The price, offered by Blackstone Group, started out at $60 million. On Wednesday, Energy Future told the bankruptcy court overseeing its own chapter 11 proceeding it may bid as much as $87.5 million for the facility near Bremond, Texas.