v2.4.0.6

Fair Value Measurements (Tables) | 12 Months Ended
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Dec. 31, 2012
Fair Value Measurements [Abstract] |
Fair Value Assets and Liabilities Measured On Recurring Basis | The following table provides fair value measurement information within the fair value hierarchy for certain of EOG's financial assets and liabilities carried at fair value on a recurring basis at December 31, 2012 and 2011 (in millions):
|  |  | Fair Value Measurements Using:
|  |  | Quoted |  |  | Significant |  |  |  |  |  |
|  |  | Prices in |  |  | Other |  |  | Significant |  |  |
|  |  | Active |  |  | Observable |  |  | Unobservable |  |  |
|  |  | Markets |  |  | Inputs |  |  | Inputs |  |  |
|  |  | (Level 1) |  |  | (Level 2) |  |  | (Level 3) |  |  | Total
At December 31, 2012 |  |  |  |  |  |  |  |  |  |  |  |
Financial Assets: |  |  |  |  |  |  |  |  |  |  |  |
| Crude Oil Swaps |  | $ | - |  | $ | 65 |  | $ | - |  | $ | 65
| Crude Oil Options/Swaptions |  |  | - |  |  | 36 |  |  | - |  |  | 36
| Natural Gas Options/Swaptions |  |  | - |  |  | 65 |  |  | - |  |  | 65
Financial Liabilities: |  |  |  |  |  |  |  |  |  |  |  |
| Crude Oil Options/Swaptions |  | $ | - |  | $ | 8 |  | $ | - |  | $ | 8
| Natural Gas Options/Swaptions |  |  | - |  |  | 13 |  |  | - |  |  | 13
| Foreign Currency Rate Swap |  |  | - |  |  | 55 |  |  | - |  |  | 55
| Interest Rate Swap |  |  | - |  |  | 4 |  |  | - |  |  | 4
At December 31, 2011 |  |  |  |  |  |  |  |  |  |  |  |
Financial Assets: |  |  |  |  |  |  |  |  |  |  |  |
| Crude Oil Swaps |  | $ | - |  | $ | 29 |  | $ | - |  | $ | 29
| Crude Oil Options/Swaptions |  |  | - |  |  | 4 |  |  | - |  |  | 4
| Natural Gas Swaps |  |  | - |  |  | 81 |  |  | - |  |  | 81
| Natural Gas Options/Swaptions |  |  | - |  |  | 372 |  |  | - |  |  | 372
Financial Liabilities: |  |  |  |  |  |  |  |  |  |  |  |
| Foreign Currency Rate Swap |  | $ | - |  | $ | 52 |  | $ | - |  | $ | 52
| Interest Rate Swap |  |  | - |  |  | 3 |  |  | - |  |  | 3

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- Definition Tabular disclosure of assets and liabilities, including [financial] instruments measured at fair value that are classified in stockholders' equity, if any, that are measured at fair value on a recurring basis. The disclosures contemplated herein include the fair value measurements at the reporting date by the level within the fair value hierarchy in which the fair value measurements in their entirety fall, segregating fair value measurements using quoted prices in active markets for identical assets (Level 1), significant other observable inputs (Level 2), and significant unobservable inputs (Level 3). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=7578670&loc=d3e19190-110258 + Details
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