Energy Future Holdings Corp., the Texas power producer taken private in the largest-ever leveraged buyout, said it won’t submit its annual report on time as talks with creditors on a potential bankruptcy plan continue.

The failure to submit the 10-k today puts Energy Future in breach of covenants with its creditors, the Dallas-based company said in a filing with the U.S. Securities and Exchange Commission. Energy Future said March 31 that it missed $109 million in debt payments and has until May 1 before it’s in default.

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