Certain of Greenway’s stockholders (Investor Group L.P., Investor Growth Capital Limited and Pamlico Capital II, L.P.), each of Greenway’s directors (W. Thomas Green, Jr., Wyche T. Green, III, Robert Hensley, Neal Morrison, Thomas T. Richards, Walter Turek and Noah Walley), and certain executive officers of Greenway, including Gregory H. Schulenburg (Executive Vice President and Chief Operating Officer), James A. Cochran (Chief Financial Officer) and William G. Esslinger, Jr. (Vice President, General Counsel and Secretary), have each agreed to tender their shares into the offer, and vote their shares in favor of the definitive merger agreement and the merger, subject to certain terms and conditions. These stockholders collectively own approximately 50.9% of Greenway’s outstanding shares. These agreements will terminate upon termination of the definitive merger agreement in accordance with its terms in order for the Company to accept a superior offer and upon certain other circumstances.The affiliate of Vista has obtained equity and debt financing commitments for the transactions contemplated by the merger agreement, the aggregate proceeds of which will be sufficient for Vista’s affiliate to pay the aggregate merger consideration and all related fees and expenses. Vista has committed to capitalize its affiliate, at or immediately prior to the effective time of the merger, with an aggregate equity contribution in an amount up to $650 million, which will be sufficient for the Affiliate to consummate the transactions contemplated by the merger agreement even if Vista’s debt financing is not available, subject to the terms and conditions set forth in an equity funding commitment letter, dated as of September 23, 2013. J.P. Morgan is serving as financial advisor to Greenway, and Paul Hastings LLP is serving as Greenway’s legal advisor. Jefferies LLC and BMO Capital Markets are serving as financial advisors to the buyer, and Kirkland & Ellis LLP is serving as the buyer’s legal advisor. Jefferies Finance LLC and BMO Capital Markets have agreed to provide debt financing in connection with the transaction.