SCHEDULE I Lyda Hunt-Herbert Trust - Douglas H. Hunt Lyda Hunt-Herbert Trust - Barbara A. Hunt Lyda Hunt-Herbert Trust - Lyda B. Hunt Lyda Hunt-Herbert Trust - David S. Hunt Lyda Hunt-Herbert Trust - Bruce W. Hunt Petro-Hunt Corporation Lyda Hunt-Margaret Trust - Al G. Hill, Jr. Lyda Hunt-Margaret Trust - Lyda Hill Lyda Hunt-Margaret Trust - Alinda Hunt Hill Hunt Coal Corporation