FIRST RESERVE GP IX L P

• 10% owner at Dresser-Rand Group Inc. · on record since Feb 22, 2006
• 10% owner at Alpha Natural Resources, Inc. · on record since Jan 20, 2006
• Director at Dresser-Rand Group Inc. · on record since Mar 15, 2007
• Director at NATURAL RESOURCE PARTNERS LP · on record since Jan 2, 2004
• 10% owner at NATURAL RESOURCE PARTNERS LP · on record since Jan 2, 2004
• 10% owner at PRIDE INTERNATIONAL INC · on record since Jan 26, 2004
• 10% owner at QUANTA SERVICES INC · on record since Mar 2, 2004
• 10% owner at Foundation Coal Holdings, Inc. · on record since Dec 8, 2004
• See Footnote 1 at PRIDE INTERNATIONAL INC · on record since Apr 14, 2005
• See Footnote 1 at Foundation Coal Holdings, Inc. · on record since Sep 19, 2005
• See FN 1 at NATURAL RESOURCE PARTNERS LP · on record since Nov 16, 2005