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Acquisitions and Divestitures - Dynamic Acquisition - Preliminary Estimated Values of Assets Acquired and Liabilities Assumed (Parenthetical) (Details) (USD $) In Thousands, except Per Share data, unless otherwise specified | 12 Months Ended | 0 Months Ended |  | 0 Months Ended
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Dec. 31, 2012 | Dec. 31, 2011 | Dec. 31, 2010 | Apr. 17, 2012 Dynamic Acquisition | Dec. 31, 2012 8.125% Senior Notes due 2022 | Apr. 17, 2012 8.125% Senior Notes due 2022 Dynamic Acquisition | Apr. 17, 2012 Oil Dynamic Acquisition | Apr. 17, 2012 Natural Gas Dynamic Acquisition
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |
Shares of SandRidge common stock issued (in shares) |  |  |  | 73,962 | [1] |  |  |  |
Cash consideration |  |  |  | $ 680,000 | [1],[2] |  |  |  |
SandRidge common stock price (in dollars per share) |  |  |  | $ 7.33 | [1] |  |  |  |
Face amount of Senior Notes issued | 1,850,344 | 2,033,000 | 2,117,914 |  |  |  | 750,000 |  |
Long-term debt, fixed interest rate |  |  |  |  |  | 8.125% | 8.125% |  |
Cash balance adjustment |  |  |  | $ 13,091 | [1],[3] |  |  |  |
Commodity average price (in dollars per bbl for oil/dollars per mcf for natural gas) |  |  |  |  |  |  |  | 113.62 | 3.83
Weighted average commodity prices, basis of price determination |  |  |  | The commodity prices utilized were based upon commodity strip prices for the first four years and escalated for inflation at a rate of 2.0% annually beginning with the fifth year through the end of production. |  |  |  |  |
Commodity prices period valuation before escalation |  |  |  | 4 years |  |  |  |  |
Annual escalation factor for forward commodity strip prices beginning the fifth year through end of production |  |  |  | 2.00% |  |  |  |  |
[1] | Consideration paid by the Company consisted of 74 million shares of SandRidge common stock and cash of approximately $680.0 million. The value of the stock consideration is based upon the closing price of $7.33 per share of SandRidge common stock on April 17, 2012, which was the closing date of the Dynamic Acquisition. Under the acquisition method of accounting, the purchase price is determined based on the total cash paid and the fair value of SandRidge common stock issued on the acquisition date.
[2] | Cash consideration paid, including amounts paid to retire Dynamic’s long-term debt, was funded through a portion of the net proceeds from the Company’s issuance of $750.0 million of unsecured 8.125% Senior Notes due 2022.
[3] | In accordance with the acquisition agreement, the Company remitted to the seller a cash payment equal to Dynamic’s average daily cash balance for the 30-day period ending on the second day prior to closing. This resulted in an additional cash payment by SandRidge of $13.1 million at closing.

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