Subsequent Events	12 Months Ended
Dec. 31, 2011
Subsequent Events	22. Subsequent Events Events occurring after December 31, 2011 were evaluated to ensure that any subsequent events that met the criteria for recognition and/or disclosure in this report have been included. Sale of Working Interests. In January 2012, SandRidge sold to Repsol E&P USA Inc. (“Repsol”) an approximate 25% non-operated working interest, equal to approximately 250,000 net acres, in the Mississippian formation in western Kansas, and an approximate 16% non-operated working interest, equal to approximately 114,000 net acres and a proportionate share of existing salt water disposal facilities in the Mississippian formation in northern Oklahoma and southern Kansas for approximately $272.5 million. In addition, Repsol will pay for its working interest share of development costs and will fund a portion of SandRidge’s development costs equal to 200% of Repsol’s working interest for wells within an area of mutual interest, up to $750.0 million, which is expected to occur over a five-year period. SandRidge Mississippian Trust II. On January 5, 2012, the Company and SandRidge Mississippian Trust II (the “Mississippian Trust II”), a newly formed Delaware statutory trust, filed registration statements with the Securities and Exchange Commission (“SEC”) for the proposed public offering of common units representing beneficial interests in the Mississippian Trust II. Prior to the closing of this offering, the Company intends to convey certain royalty interests to the Mississippian Trust II in exchange for the net proceeds from the offering and units, representing a beneficial interest in the Mississippian Trust II. The royalty interests to be conveyed to the Mississippian Trust II are in certain oil and natural gas properties leased by the Company in the Mississippian formation in northern Oklahoma and southern Kansas. There can be no assurance that the Company will complete this transaction, as it is subject to market conditions and other uncertainties, as well as completion of the SEC review process. Dynamic Acquisition. On February 1, 2012, the Company entered into an agreement to acquire Dynamic Offshore Resources, LLC (“Dynamic”), an oil and natural gas exploration, development and production company with operations in the Gulf of Mexico for approximately $1.3 billion, comprised of approximately $680.0 million in cash and approximately 74 million shares of the Company’s common stock. The acquisition, which is expected to close in the second quarter of 2012, is subject to customary closing conditions, including compliance with the applicable waiting period under the Hart-Scott-Rodino Antitrust Improvements Act. The Company has secured $725.0 million in committed financing for the acquisition that it may use to fund the cash portion of the acquisition. Royalty Trust Distributions. On February 2, 2012, the Mississippian Trust I and the Permian Trust announced quarterly distributions for the three-month period ended December 31, 2011 of $22.1 million, or $0.79 per unit, and $29.1 million, or $0.55 per unit, respectively. Of these distribution amounts, $13.6 million and $19.1 million will be distributed to the third party trust unitholders in the Mississippian Trust I and the Permian Trust, respectively. The distributions are expected to occur on or before February 29, 2012 to holders of record as of the close of business on February 14, 2012.

22. Subsequent Events

Events occurring after December 31, 2011 were evaluated to ensure that any subsequent events that met the criteria for recognition and/or disclosure in this report have been included.

Sale of Working Interests. In January 2012, SandRidge sold to Repsol E&P USA Inc. (“Repsol”) an approximate 25% non-operated working interest, equal to approximately 250,000 net acres, in the Mississippian formation in western Kansas, and an approximate 16% non-operated working interest, equal to approximately 114,000 net acres and a proportionate share of existing salt water disposal facilities in the Mississippian formation in northern Oklahoma and southern Kansas for approximately $272.5 million. In addition, Repsol will pay for its working interest share of development costs and will fund a portion of SandRidge’s development costs equal to 200% of Repsol’s working interest for wells within an area of mutual interest, up to $750.0 million, which is expected to occur over a five-year period.

SandRidge Mississippian Trust II. On January 5, 2012, the Company and SandRidge Mississippian Trust II (the “Mississippian Trust II”), a newly formed Delaware statutory trust, filed registration statements with the Securities and Exchange Commission (“SEC”) for the proposed public offering of common units representing beneficial interests in the Mississippian Trust II. Prior to the closing of this offering, the Company intends to convey certain royalty interests to the Mississippian Trust II in exchange for the net proceeds from the offering and units, representing a beneficial interest in the Mississippian Trust II. The royalty interests to be conveyed to the Mississippian Trust II are in certain oil and natural gas properties leased by the Company in the Mississippian formation in northern Oklahoma and southern Kansas. There can be no assurance that the Company will complete this transaction, as it is subject to market conditions and other uncertainties, as well as completion of the SEC review process.

Dynamic Acquisition. On February 1, 2012, the Company entered into an agreement to acquire Dynamic Offshore Resources, LLC (“Dynamic”), an oil and natural gas exploration, development and production company with operations in the Gulf of Mexico for approximately $1.3 billion, comprised of approximately $680.0 million in cash and approximately 74 million shares of the Company’s common stock. The acquisition, which is expected to close in the second quarter of 2012, is subject to customary closing conditions, including compliance with the applicable waiting period under the Hart-Scott-Rodino Antitrust Improvements Act. The Company has secured $725.0 million in committed financing for the acquisition that it may use to fund the cash portion of the acquisition.

Royalty Trust Distributions. On February 2, 2012, the Mississippian Trust I and the Permian Trust announced quarterly distributions for the three-month period ended December 31, 2011 of $22.1 million, or $0.79 per unit, and $29.1 million, or $0.55 per unit, respectively. Of these distribution amounts, $13.6 million and $19.1 million will be distributed to the third party trust unitholders in the Mississippian Trust I and the Permian Trust, respectively. The distributions are expected to occur on or before February 29, 2012 to holders of record as of the close of business on February 14, 2012.