IMPORTANT INFORMATION Pinnacle West is providing quarterly consolidated operating statistics and market, weather and economic indicators ("Information") to help interested parties better understand our business. The Information may not represent all of the factors that could affect our operating or financial results for various periods. Some of the Information is preliminary in nature and could be subject to significant adjustment. Some of the Information is based on information received from third parties and may contain inaccuracies. Although we may update or correct the Information if we are aware that it has been revised or is inaccurate, we assume no obligation to update or correct the Information and reserve the right to discontinue the provision of all or any portion of the Information at any time or to change the type of Information provided. Pinnacle West is not responsible for any errors or delays in the Information or for any actions taken in reliance thereon.