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Acquisitions and Divestitures - Gulf of Mexico Property Acquisitions - Unaudited Pro Forma Results of Operations (Details) (Gulf of Mexico Properties, USD $) In Thousands, except Per Share data, unless otherwise specified	9 Months Ended
	Sep. 30, 2012
Gulf of Mexico Properties
Business Acquisition
Revenues	$ 1,421,283
Net income	543,947
Income available to SandRidge Energy, Inc. common stockholders	$ 390,227
Earnings per common share
Basic (in dollars per share)	$ 0.87
Diluted (in dollars per share)	$ 0.80

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The pro forma basic net income per share for a period as if the business combination or combinations had been completed at the beginning of a period.

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