Arena Resources, Inc. Adds an Estimated Eight Million Barrels of Oil Equivalent of Proved Reserves in West Texas

Arena Resources, Inc. (NYSE: ARD) ("Company”)("Arena”) announced today that it has acquired two properties located in Andrews County, Texas for a purchase price of $49 million. The purchase price was financed by existing cash reserves and drawing on the Company’s $150 million credit facility. The closing date was December 11, 2007 with an effective date of December 1, 2007. Property Information The properties consist of approximately 5,000 acres. Arena will be the operator and have a 100% working interest and average net revenue interest in excess of 75% in these properties. One of the properties is located in the Fuhrman-Mascho field immediately adjacent to the Company’s Fuhrman-Mascho properties acquired in December 2004. In addition to the producing wells currently on the properties, Arena’s engineering team has identified approximately 120 new drilling locations, with the potential to increase that number through additional in-fill drilling and development. In addition to the current production from the San Andres and Queen formations, the Company has also secured the rights to the Yates gas formation throughout the acreage. Production and Reserves The current net production to the Company from the properties is approximately 560 BOE (Barrels of Oil Equivalent) per day and is over 85% oil. The Company’s initial reserve estimates, as determined by internal engineering evaluations, indicate the properties have an estimated eight million BOEs of proved reserves net to Arena, exclusive of any potential Yates gas reserves and any additional probable or possible oil reserves. The proved reserves represent an estimated cost of $6.00 per BOE and are approximately 10% proved developed producing. Mr. Tim Rochford, CEO of Arena, stated, "These acquisitions allow us to add significant reserves and drilling locations to our current inventory in the Fuhrman-Mascho at a very attractive price as we continue to focus on those acquisitions that will complement our existing Permian Basin properties.” About Arena Resources, Inc. Arena Resources, Inc. is an oil and gas exploration, development and production company with current operations in Texas, Oklahoma, Kansas and New Mexico. This release contains forward-looking statements within the meaning of the "safe-harbor” provisions of the Private Securities Litigation Reform Act of 1995 that involve a wide variety of risks and uncertainties, including, without limitations, statements with respect to the Company’s strategy and prospects. Readers and investors are cautioned that the Company’s actual results may differ materially from those described in the forward-looking statements due to a number of factors, including, but not limited to, the Company’s ability to acquire productive oil and/or gas properties or to successfully drill and complete oil and/or gas wells on such properties, general economic conditions both domestically and abroad, and the conduct of business by the Company, and other factors that may be more fully described in additional documents set forth by the Company.