Hornbeck Offshore Lowers Guidance for 4Q

Hornbeck Offshore Services, Inc. announced after an initial review of operating results, it has revised its EBITDA and diluted earnings per share (EPS) guidance for the fourth quarter of 2006 and calendar 2006. The company now expects EBITDA for the fourth quarter of 2006 to range between $33.0 million and $34.0 million, down from $39.0 million to $41.0 million. Please refer to the attached data table and Note A for a definition and reconciliation of EBITDA guidance to its most directly comparable GAAP financial measure. The Company now expects EPS for the fourth quarter of 2006 to range between $0.61 and $0.63, down from $0.72 to $0.77. Included in fourth quarter 2006 results will be a $1.5 million ($1.0 million after-tax, or $0.04 per diluted share) gain on the sale of the ocean-going tug, Ponce Service. In recognition of its actual results for the first nine months of 2006 and its revised fourth quarter 2006 guidance above, the Company now expects EBITDA for the full calendar year 2006 to range between $151.3 million and $152.3 million and EPS to range between $2.74 and $2.77.