This excerpt taken from the ACI 8-K filed Jul 28, 2006.
Item 5.02 Departure of Directors or Principal Officers; Election of Directors; Appointment of Principal Officers.
On July 27, 2006, the Board of Directors of Arch Coal, Inc. (the "Company") increased the size of the Board of Directors to twelve and elected Brian J. Jennings to fill the newly-created vacancy, effective immediately. Mr. Jennings will serve as a Class I director and his term will expire at the 2007 annual meeting of stockholders of the Company. Mr. Jennings will serve on the Finance Committee and the Audit Committee.