This Option may be exercised only to the extent it is vested on the vesting dates in accordance with the Vesting Schedule set forth in the Summary of Stock Option Award. The vested percentage indicated in such Vesting Schedule will be exercisable, as to all or part of the vested shares, at any time or times after the respective vesting date and until the expiration or termination of the Option. The vesting of this Option may be accelerated in certain events as set forth in (i) the Plan, or (ii), if applicable, the Noble Energy, Inc. 2016 Severance Benefit Plan or any other severance benefits or early retirement plan or program maintained at any time by Noble (each referred to herein as a “Severance Plan”), which Severance Plan specifically provides for earlier vesting of the Option upon a qualifying termination from employment.