Patriot Coal Corporation (the "Company") will file a proxy statement/prospectus with the Securities and Exchange Commission (the "SEC") in connection with the proposed issuance of Company common stock in the transaction with Magnum Coal Company ("Magnum"). Investors and stockholders are urged to read the proxy statement/prospectus when it becomes available and any other relevant documents filed with the SEC because they will contain important information about the proposed issuance. Investors and stockholders may obtain these documents free of charge at the website maintained by the SEC at http://www.sec.com/. In addition, documents filed with the SEC by the Company are available free of charge by contacting Janine Orf, Director, Investor Relations, at (314) 275-3680. The final proxy statement/prospectus will be mailed to stockholders.

This communication shall not constitute an offer to sell or the solicitation of an offer to buy securities, nor shall there be any sale of securities in any jurisdiction in which such offer, solicitation or sale would be unlawful prior to registration or qualification under the securities laws of such jurisdiction.

The Company, Magnum and certain of their respective directors, executive officers and other members of management and employees may be deemed to be participants in the solicitation of proxies from the stockholders of the Company in connection with the proposed issuance. Information about the Company's directors and executive officers is set forth in the Company's Annual Report on Form 10-K for the year ended December 31, 2007 filed with the SEC on March 14, 2008 and in the proxy statement for the Company's 2008 annual meeting of stockholders filed by the Company with the SEC on April 7, 2008. Additional information regarding the potential participants in the proxy solicitation and information regarding the interests of such potential participants will be included in the proxy statement/prospectus and the other relevant documents filed with the SEC when they become available.