EXHIBIT 99.1



                   CERTIFICATION OF PERIODIC FINANCIAL REPORTS



I, Irl F. Engelhardt, Chairman and Chief Executive Officer of Peabody Energy
Corporation, certify, pursuant to Section 906 of the Sarbanes-Oxley Act of 2002,
that:

(1)      the Quarterly Report on Form 10-Q for the quarterly period ended June
         30, 2002 (the "Periodic Report") which this statement accompanies fully
         complies with the requirements of Section 13(a) or 15(d) of the
         Securities Exchange Act of 1934 (15 U.S.C. 78m or 78o(d)); and

(2)      information contained in the Periodic Report fairly presents, in all
         material respects, the financial condition and results of operations of
         Peabody Energy Corporation.

Dated:  August 6, 2002



                                           IRL F. ENGELHARDT
                                           ------------------------------------
                                           Irl F. Engelhardt
                                           Chairman and Chief Executive Officer