Pacific Drilling S.A. (NYSE: PACD) announced today that it will join the Russell Global Index when Russell Investments reconstitutes its comprehensive set of global equity indexes on June 25, 2012, according to a preliminary list of additions posted June 8, 2012, on www.russell.com. About Pacific Drilling With its best-in-class drillships and highly experienced team, Pacific Drilling is a fast growing company that is committed to becoming the industry’s preferred ultra-deepwater drilling contractor. Pacific Drilling’s fleet of seven ultra-deepwater drillships will represent one of the youngest and most technologically advanced fleets in the world. The company currently operates four recently delivered drillships and has two additional drillships under construction and one on order at Samsung. For more information about Pacific Drilling, including our current Fleet Status, please visit our website at www.pacificdrilling.com. Any statements in this press release other than statements of historical fact may constitute forward-looking statements as defined in applicable securities laws. Such statements involve risks and uncertainties that could cause actual events or results to differ materially from the events or results described in or implied by the forward-looking statements. All forward-looking statements are based on information available to us as of the date they are made, and we undertake no obligation to publicly update or revise any forward-looking statements in light of new information, future events or otherwise.