Exhibit 10(aa) A subsidiary of MCN Energy Group Inc., Detroit. Ml MCN	 Bruce C. Schlansker 150 West Jefferson Avenue 	Telephone Investment	 Senior Vice President Suite 1800	 (313) 256-5869 Corporation Detroit, Michigan 48226	 (313) 256-5851 FAX December 16, 1998 VIA FACISIMILE (405) 842-9901 and FEDERAL EXPRESS	 Mr. Herb Mee, Jr. Beard Mining, L.L.C.. 5600 North May Avenue Suite 320 Oklahoma City, OK 73112 Re: Coal Fines Extraction and Beneficiation Agreement among CRC No.1 LLC, CRC No. 2 LLC, CRC No. 3 LLC, CRC No. 4 LLC CRC No. 5 LLC and CRC No. 6 LLC and Beard Mining, L.L.C. Dear Mr. Mee: Pursuant to Section 8.1 of the above referenced Agreement, as amended, CRC No.1 LLC, CRC No.2 LLC, CRC No.3 LLC, CRC No.4 LLC CRC No.5 LLC and CRC No.6 LLC hereby gives Beard Mining, L.L.C. notice of their intention to terminate the Agreement effective January 31, 1999. Please do not hesitate to contact me if you have any questions or concerns. Cordially, BRUCE SCHLANSKER Bruce Schlansker Chairman, on behalf of CRC No. 1 LLC, CRC No. 2 LLC, CRC No. 3. LLC, CRC No. 4 LLC, CRC No. 5 LLC and CRC No. 6 LLC cc:	William Kramer