DISC:NO

Hercules Discovery Ltd., a wholly owned subsidiary of Hercules Offshore, Inc. (" Hercules" ), has on 24 June 2013 agreed to purchase an additional 14,579,872 shares in Discovery Offshore S.A. (" Discovery" ) at a price of NOK 15.00 per share in direct transactions with certain selling shareholders. Following completion of this acquisition of shares by Hercules Discovery Ltd., together with the 21,012,834 shares already owned by Hercules and the acquisition of 17,958,447 shares announced earlier today, Hercules' total ownership in Discovery will amount to 53,551,153 shares corresponding to 81.8% of all issued shares in Discovery. As announced earlier today, the acquisition of shares by Hercules Discovery Ltd. triggers an obligation to make a mandatory offer for all of the outstanding shares in Discovery (the " Offer" ). This notification does not constitute an offer. The Offer will only be made on the basis of the offer document and can only be accepted pursuant to the terms of such document. Hercules, through Hercules Discovery Ltd., will make the Offer within the time limit set out in the Norwegian Securities Trading Act. In the context of the Offer, the price of NOK 15.00 is the highest price paid or agreed to be paid per share in Discovery by Hercules during the last 6 months. Hercules executives, Stephen M. Butz and James W. Noe, serve on the board of directors of Discovery. About Discovery: Discovery Offshore is a Luxembourg-based public limited liability company incorporated on 12 January 2011 for the purpose of owning new ultra high specification jackup drilling rigs. Discovery Offshore's main assets are two Keppel FELS Super A high specification harsh environment jackup rigs. The first rig, Discovery Triumph, was delivered on June 7, 2013 and delivery of the second rig, Discovery Resilience, is scheduled for October 2013. For additional information about Discovery Offshore S.A., please visit Discovery's website at www.discoveryoffshore.lu. About Hercules: Hercules is a Delaware corporation headquartered in Houston, Texas. Its shares are traded on the NASDAQ Global Select Market under the symbol " HERO" . Hercules operates a fleet of 38 jackup rigs, 13 barge rigs and 63 liftboats. The Company offers a range of services to oil and gas producers to meet their needs during drilling, well service, platform inspection, maintenance, and decommissioning operations in several key shallow water provinces around the world. For more information, please visit Hercules' website at www.herculesoffshore.com. Contact person: Son P. Vann, CFA svann@herculesoffshore.com +1-713-350-850