Earthstone, Lynden and their respective directors, executive officers and certain other members of management and employees may be deemed to be participants in the solicitation of proxies in respect of the proposed Transaction. Information regarding Earthstone's directors and executive officers is available in its proxy statement filed with the SEC by Earthstone on September 21, 2015 in connection with its 2015 annual meeting of stockholders, and information regarding Lynden's directors and executive officers is available in its management proxy circular filed by Lynden with the SEC on October 21, 2015 in connection with its 2015 annual meeting of stockholders. Other information regarding the participants in the proxy solicitation and a description of their direct and indirect interests, by security holdings or otherwise, will be contained in the joint information statement/circular and other relevant materials to be filed with the SEC and the Canadian securities regulators when they become available.