Cal Dive International, Inc. (NYSE:DVR) announced today that the secondary offering of 20.0 million shares of Cal Dive common stock by Helix Energy Solutions Group, Inc. (NYSE:HLX) (“Helix”), Cal Dive’s majority stockholder, was priced at $8.50 per share. As previously reported, Cal Dive has also entered into an agreement with Helix under which, simultaneously with and conditioned upon closing of the offering, it will repurchase directly from Helix 1,647,058 shares for a purchase price of approximately $14 million or $8.50 per share, the price per share paid by the public investors in the offering. Cal Dive intends to retire all of the repurchased shares.

The offering is expected to close on Wednesday, June 10, 2009, subject to customary closing conditions. In addition, Helix has granted the underwriters an option to purchase an additional 3.0 million shares to cover over-allotments, if any.

The offering and stock repurchase represents approximately 23% of Cal Dive’s common stock currently outstanding and would reduce Helix’s ownership interest in the Company from approximately 51% to 28%. Assuming the exercise of the over-allotment option, Helix’s ownership interest would be further reduced to approximately 25%. Helix will receive all net proceeds from the secondary offering and stock repurchase.

In connection with the offering, Credit Suisse Securities (USA) LLC and Merrill Lynch & Co. are acting as joint book-running managers and Raymond James & Associates and Johnson Rice & Company L.L.C. are acting as co-managers for the offering.

Cal Dive has filed a registration statement, including a prospectus, with the Securities and Exchange Commission for the offering to which this communication relates. Before investing, investors should read the prospectus in that registration statement, the accompanying prospectus supplement, and other documents Cal Dive has filed with the SEC for more complete information about Cal Dive and this offering.

Investors may obtain these documents for free by visiting EDGAR on the SEC Web site at www.sec.gov. Alternatively, the issuer, any underwriter or any dealer participating in the offering will arrange to send the prospectus and the prospectus supplement upon request by contacting Credit Suisse Securities (USA) LLC at Prospectus Dept., One Madison Avenue, New York, NY 10010, 1-800-221-1037 or Merrill Lynch & Co.