ald A. Elenbaas 3.125% of 100% Shown on Original form hereto COG Operating, LLC 6.25% of 100% Shown on Original form hereto Signatures: met It Daule Wiliam J. Wallisch Tide: Date: Assistant Secretary of Flight Options. LLC Acting as Attorney-in.Fact for ,2,3.5.6.8.9,10.11 Vice President of