Hornbeck Offshore Services, Inc. (Hornbeck Offshore or the Company) entered into a definitive vessel purchase agreement with Nautical Solutions, L.L.C. (the Seller), an affiliate of Edison Chouest Offshore, to acquire a total of six high-spec new generation offshore supply vessels (OSVs) for an undisclosed amount of cash. Each of the vessels are U.S.-flagged, Jones Act-qualified, 280 class DP-2 OSVs with capacities of circa 4,750 DWT. Based on certain conditions, the Company anticipates taking serial deliveries of all six vessels over the next 12 to 15 months.