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Risk Management Activities (Tables) | 6 Months Ended
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Jun. 30, 2019
Derivatives, Fair Value [Line Items] |
Schedule of Derivative Instruments in Statement of Financial Position, Fair Value | The following table sets forth the amounts and classification of EOG's outstanding financial derivative instruments at June 30, 2019 and December 31, 2018. Certain amounts may be presented on a net basis on the Condensed Consolidated Financial Statements when such amounts are with the same counterparty and subject to a master netting arrangement (in thousands):
|  |  |  | Fair Value at
Description |  | Location on Balance Sheet |  | June 30, 2019 |  | December 31, 2018
Asset Derivatives |  |  |  |  |  |
Crude oil and natural gas derivative contracts - |  |  |  |  |  |
Current portion |  | Assets from Price Risk Management Activities (1) |  | $ | 134,951 |  |  | $ | 23,806 |
(1) | The current portion of Assets from Price Risk Management Activities consists of gross assets of $138 million, partially offset by gross liabilities of $3 million at June 30, 2019.
Crude Oil | Midland Differential Basis Swaps |
Derivatives, Fair Value [Line Items] |
Schedule of Derivative Instruments | Presented below is a comprehensive summary of EOG's Midland Differential basis swap contracts for the six months ended June 30, 2019. The weighted average price differential expressed in dollars per barrel ($/Bbl) represents the amount of reduction to Cushing, Oklahoma, prices for the notional volumes expressed in barrels per day (Bbld) covered by the basis swap contracts.
| Midland Differential Basis Swap Contracts
|  |  | Volume (Bbld) |  | Weighted Average Price Differential ($/Bbl)
| 2019 |  |  |  |
| January 1, 2019 through July 31, 2019 (closed) |  | 20,000 |  |  | $ | 1.075 |
| August 1, 2019 through December 31, 2019 |  | 20,000 |  |  | 1.075 |
Crude Oil | Gulf Coast Differential Basis Swap |
Derivatives, Fair Value [Line Items] |
Schedule of Derivative Instruments | Presented below is a comprehensive summary of EOG's Gulf Coast Differential basis swap contracts for the six months ended June 30, 2019. The weighted average price differential expressed in $/Bbl represents the amount of addition to Cushing, Oklahoma, prices for the notional volumes expressed in Bbld covered by the basis swap contracts.
| Gulf Coast Differential Basis Swap Contracts
|  |  | Volume (Bbld) |  | Weighted Average Price Differential ($/Bbl)
| 2019 |  |  |  |
| January 1, 2019 through July 31, 2019 (closed) |  | 13,000 |  |  | $ | 5.572 |
| August 1, 2019 through December 31, 2019 |  | 13,000 |  |  | 5.572 |
Crude Oil | Price Swaps |
Derivatives, Fair Value [Line Items] |
Schedule of Derivative Instruments | Presented below is a comprehensive summary of EOG's crude oil price swap contracts for the six months ended June 30, 2019, with notional volumes expressed in Bbld and prices expressed in $/Bbl.
Crude Oil Price Swap Contracts
|  | Volume (Bbld) |  | Weighted Average Price ($/Bbl)
2019 |  |  |  |
April 2019 (closed) |  | 25,000 |  |  | $ | 60.00 |
May 1, 2019 through June 30, 2019 (closed) |  | 150,000 |  |  | 62.50 |
July 1, 2019 through December 31, 2019 |  | 150,000 |  |  | 62.50 |
Natural Gas | Price Swaps |
Derivatives, Fair Value [Line Items] |
Schedule of Derivative Instruments | Presented below is a comprehensive summary of EOG's natural gas price swap contracts for the six months ended June 30, 2019, with notional volumes expressed in million British thermal units (MMBtu) per day (MMBtud) and prices expressed in dollars per MMBtu ($/MMBtu).
Natural Gas Price Swap Contracts
|  | Volume (MMBtud) |  | Weighted Average Price ($/MMBtu)
2019 |  |  |  |
April 1, 2019 through July 31, 2019 (closed) |  | 250,000 |  |  | $ | 2.90 |
August 1, 2019 through October 31, 2019 |  | 250,000 |  |  | 2.90 |

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