X0201 42003-12-2400001037676ARCH COAL INC ACI0001129715MESSEY ROBERT JONE CITYPLACE DRIVEST. LOUISMO631410100Senior Vice President & CFOCommon Stock2003-12-244M08026.000018.1500A0DCommon Stock2003-12-244S08026.000031.9700D0DCommon Stock2003-12-264M0537.000018.1500A0DCommon Stock2003-12-264S0400.000031.9000D0DCommon Stock2003-12-264S0137.000031.9700D0DCommon Stock2003-12-264M01863.000022.6000A0DCommon Stock2003-12-264S01863.000031.9700D2300.0000DEmployee Stock Option (Right to Buy)18.15002003-12-244M08026.000018.1500D2003-02-282012-02-29Common Stock8026.0000537.0000DEmployee Stock Option (Right to Buy)18.15002003-12-264M0537.000018.1500D2003-02-282012-02-29Common Stock537.00000DEmployee Stock Option (Right to Buy)22.60002003-12-264M01863.000022.6000D2003-04-252012-04-25Common Stock1863.00006700.0000DBy: Janet L. Horgan, attorney-in-fact2003-12-29