According to the Dallas Morning News it’s possible that TXU’s debt issues could spill over  into Oncor which is owned by TXU.  If this were to happen it would mean higher electricity rates in Dallas regardless of whether you use TXU as your provider.  Oncor manages the actual delivery of electricity to your home and a portion of your electric bill reflects a charge from Oncor.

See Also: TXU – Are They The Most Expensive Electric Provider In Texas?