Common Contracts

Wells Fargo Securities, LLC as agent of Wells Fargo Bank, NA New York, NY 10152 Facsimile: (212) 214-5913 Telephone: (212) 214-6101

Additional Call Option Transaction • August 13th, 2012 • Hornbeck Offshore Services Inc /La • Water transportation

• Contract Type
  Additional Call Option Transaction
• Filed
  August 13th, 2012
• Company
  Hornbeck Offshore Services Inc /La
• Industry
  Water transportation

The purpose of this letter agreement (this “Confirmation”) is to confirm the terms and conditions of the Transaction entered into between Wells Fargo Bank, National Association (“Dealer”), through its agent Wells Fargo Securities, LLC (the “Agent”), and Hornbeck Offshore Services, Inc. (“Counterparty”) on the Trade Date specified below (the “Transaction”). This Confirmation constitutes a “Confirmation” as referred to in the Agreement specified below.

JPMorgan Chase Bank, National Association London Branch London EC4Y 0JP England

Additional Call Option Transaction • August 13th, 2012 • Hornbeck Offshore Services Inc /La • Water transportation • New York

• Contract Type
  Additional Call Option Transaction
• Filed
  August 13th, 2012
• Company
  Hornbeck Offshore Services Inc /La
• Industry
  Water transportation
• Jurisdiction
  New York

The purpose of this letter agreement (this “Confirmation”) is to confirm the terms and conditions of the Transaction entered into between JPMorgan Chase Bank, National Association, London Branch (“Dealer”), and Hornbeck Offshore Services, Inc. (“Counterparty”) on the Trade Date specified below (the “Transaction”). This Confirmation constitutes a “Confirmation” as referred to in the Agreement specified below.