On Friday, sources say that Elliott Management Corp is exploring ideas to put together a bid for bankrupt company, Oncor Electric Delivery. Elliot plans to challenge Warren Buffett's $9 billion all-cash deal. The sources said that Elliot would seek to convert its debt in the company to equity, as well as raise new equity financing for its bid. Elliott believes it can put together a higher bid than the deal made by Buffett's Berkshire Hathaway Inc.