TimberRock Energy Corp.

The information contained herein is for informational purposes only, and this document is not to be construed under any circumstances to be (a) an offering or solicitation for the sale of securities; (b) a recommendation to purchase, sell or hold any securities; (c) an offering memorandum as contemplated by applicable securities laws; or (d) an obligation by the Company to enter into any proposed transaction. The Company and Macquarie Tristone are under no obligation to provide the recipient with access to any additional information regarding the Company or the Transaction. Macquarie Tristone has not independently verified any of the information contained herein. Certain statements contained herein may constitute forward-looking statements which involve risks and uncertainties that could cause actual events or results to differ materially from the estimated or anticipated events or results implied or expressed in such forward-looking statements. The Company and Macquarie Tristone and their respective affiliates and representatives expressly disclaim any and all liability based, in whole or in part, on the information contained herein or otherwise made available to any Interested Parties regarding the Company or the Transaction, and/or any errors therein or omissions therefrom.

Any securities in a consortium vehicle or acquisition company would not be registered under the U.S. Securities Act of 1933 (the “Act”) and may only be offered in a transaction that is not subject to or that is exempt from registration under the Act. Investors must have the financial ability and willingness to accept the risks, including the loss of the investment and lack of liquidity. Any such securities would not be able to be resold, transferred or otherwise disposed of in the U.S. unless registered under the Act or pursuant to an available exemption from registration. None of the Entities noted in this document are authorized deposit-taking institutions for the purposes of the Banking Act 1959 (Commonwealth of Australia). The obligations of these entities do not represent deposits or other liabilities of Macquarie Bank Limited ABN 46 008 583 542 (“MBL”). MBL does not guarantee or otherwise provide assurance in respect of the obligations of Macquarie Tristone.

CIRCULAR 230 DISCLOSURE

Macquarie Tristone does not provide any tax advice. Any tax statement herein regarding any U.S. federal income tax is not intended or written to be used, and cannot be used, by any taxpayer for the purpose of avoiding any penalties. Any such statement herein was written to support the marketing or promotion of the transaction(s) or matter(s) to which the statement relates. Each taxpayer should seek advice based on the taxpayer's particular circumstances from an independent tax advisor.