From 1998 to 2007, the company had been known as TXU Corporation till it was acquired by Texas Pacific Group, Goldman Sachs Capital Partners and Kohlberg Kravis Roberts for $45 billion. It was the largest purchase made in history. It then had been renamed as Energy Future Holdings Corporation and now it is a privately owned company. It is into electric utility business and has headquarter in Texas. The company is mainly into electricity generation, distribution and retailing. In addition, the company has operations in wholesale trading and marketing as well as mining. It is the largest buyer of electricity in Texas.