We refer you to the discussion of risk factors in Part I , Item 1A - " Risk Factors " of the Annual Report on Form 10-K filed by SandRidge Energy , Inc. with the SEC on March 1 , 2010 and in Part I , Item 1A - " Risk Factors " of the Annual Report on Form 10-K filed by Arena Resources , Inc. with the SEC on March 1 , 2010 .