American Exploration Corp. is engaged in the exploration and development of oil and gas prospects with the potential for discovery of new or unconventional hydrocarbon resources in the continental United States. The Company is publicly traded under the symbol AEXP: OTCBB. For more information, please see the filings with the US SEC at www.sec.gov

AMERICAN EXPLORATION CORP. AND MAINLAND RESOURCES, INC. ANNOUNCE MERGER AGREEMENT

Calgary, Alberta / PR Newswire – March 23, 2010. American Exploration Corporation (OTCBB: AEXP, Frankfurt: EQO) (“American Exploration”) and Mainland Resources, Inc. (OTCBB: MNLU, Frankfurt: 5MN) (“Mainland’) announced today that their respective boards of directors have approved a stock-for-stock merger to be effected under the laws of Nevada, and that the companies have signed a definitive Merger Agreement and Plan of Merger (the “Merger Agreement”). If the merger is completed, Mainland will be the surviving corporation, and will become vested with all of American Exploration’s assets and property.