Energy Future Holdings Corp. is a Dallas-based, privately held energy company with a portfolio of competitive and regulated energy companies. These businesses serve the high-growth Texas electricity market, which is one of worlds largest and among the nations most successful competitive markets.

Its portfolio of competitive businesses consists primarily of TXU Energy, a retail electricity provider with more than 2 million customers in Texas, and Luminant, which is engaged largely in power generation and related mining activities, wholesale power marketing and energy trading. Luminant has 15,400 MW of generation in Texas, including 2,300 MW fueled by nuclear power and 8,000 MW fueled by coal. Luminant is also the largest purchaser of wind-generated electricity in Texas and fifth largest in the United States. EFH Corp.s regulated operations consist of Oncor, which operates the largest electricity distribution and transmission system in Texas with more than three million delivery points, 102,000 miles of distribution conductors and 15,000 miles of transmission lines. While EFH Corp. indirectly owns approximately 80 percent of Oncor, the management of Oncor reports to a separate board with a majority of directors that are independent from EFH Corp.

EFH represents the transformation of TXU Corp. into a private company. A group of investors led by Kohlberg Kravis Roberts & Co., TPG and Goldman Sachs Capital Partners completed the acquisition of TXU on October 10, 2007.