Settlement Class Definition

The Settlement Class is defined as follows:

All Persons who purchased or otherwise acquired Weatherford common stock between April 25, 2007 and March 1, 2011, inclusive, and who were allegedly damaged thereby. Excluded from the Settlement Class are Defendants and Weatherford’s officers, affiliates, and directors, members of their immediate families and their legal representatives, heirs, successors or assigns and any entity in which a Defendant has a controlling interest. Also excluded from the Settlement Class are any persons or entities who exclude themselves from the Settlement Class by filing a timely request for exclusion in accordance with the requirements set forth in the Notice.