Exhibit 4.15 FIFTH SUPPLEMENTAL SENIOR NOTE INDENTURE FIFTH SUPPLEMENTAL SENIOR NOTE INDENTURE dated as of March 27, 2000 (this "Supplemental Senior Note Indenture") among P&L Coal Holdings Corporation, a Delaware corporation (the "Company"), each...Fifth Supplemental Senior Note Indenture • August 10th, 2001 • Affinity Mining Co • Bituminous coal & lignite surface mining
