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Dispositions and Acquisitions - Summary of Final Allocation of Total Purchase Price (Details) - USD ($) $ / shares in Units, $ in Thousands | Sep. 16, 2016 | Dec. 31, 2017 | Dec. 31, 2016
--- | --- | --- | ---
Natural gas and oil properties: |  |  |  |
Goodwill |  |  | $ 1,641,197 | $ 1,654,292
MRD |  |  |  |
Purchase price: |  |  |  |
Shares of Range common stock issued to Memorial stockholders |  | 77,042,749 |  |
Range common stock price per share at September 15, 2016 (close) |  | $ 39.37 |  |
Total purchase price |  | $ 3,033,173 |  |
Plus fair value of liabilities assumed by Range: |  |  |  |
Accounts payable |  | 55,624 |  |
Other current liabilities |  | 108,367 |  |
Long-term debt |  | 1,204,449 |  |
Deferred taxes |  | 547,706 |  |
Other long-term liabilities |  | 77,223 |  |
Total purchase price plus liabilities assumed |  | 5,026,542 |  |
Fair value of Memorial assets: |  |  |  |
Cash and equivalents |  | 7,180 |  |
Other current assets |  | 99,969 |  |
Derivative instruments |  | 152,994 |  |
Natural gas and oil properties: |  |  |  |
Proved property |  | 1,122,311 |  |
Unproved property |  | 1,999,187 |  |
Other property and equipment |  | 3,579 |  |
Goodwill | [1] | 1,641,197 |  |
Other |  | 125 |  |
Total asset value |  | $ 5,026,542 |  |
[1] | Goodwill will not be deductible for income tax purposes.

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