This excerpt taken from the CHK DEF 14A filed Apr 28, 2006.
PricewaterhouseCoopers LLP, or its predecessor firms, has served as our independent accountants since our initial public offering in 1993, and the Audit Committee has selected it to serve as our independent registered public accounting firm for 2006. Representatives of PricewaterhouseCoopers LLP are expected to attend the meeting. They will have an opportunity to make a statement if they desire to do so, and will be available to respond to shareholders questions.
Aggregate fees for professional services rendered for the Company by PricewaterhouseCoopers LLP in 2005 and 2004 were: