Evidence .  Within 60 days after the Effective Date, and from time to time thereafter upon the reasonable request of the Administrative Agent, t he Borrower shall take such actions and execute and deliver such documents and instruments as the Administrative Agent shall require to ensure that the Administrative Agent shall , at all times , have received satisfactory title information (including , if requested , supplemental or new title opinions addressed to it) , which title information (a) sh all collectively cover at least 80 % of the present value of the Proven Reserves of the Borrower and its Restricted Subsidiar ies as determined by the Administrative Agent , (b) shall be in form and substance acceptable to the Administrative Agent in its sole discretion ,   and (c) if requested by the Administrative Agent, shall include opinions regarding the before payout and after payout ownership interests held by the Borrower and the Borrower ' s   Restricted Subsidiar ies for all wells located on the Oil and Gas Properties covered thereby as to the ownership of Oil and Gas Properties of the Borrower and its Restricted Subsidiar ies.