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Risk Management Activities (Details)
MMBTU in Thousands

3 Months Ended

Mar. 31, 2021

USD ($)

MMBTU

$ / bbl

MBbls

Mar. 31, 2020

USD ($)

Dec. 31, 2020

USD ($)

Derivatives, Fair Value [Line Items]

Assets from Price Risk Management Activities | $

$ 0

$ 65,000,000

Liabilities from Price Risk Management Activities | $

188,000,000

0

Derivative Liability, Noncurrent | $

7,000,000

1,000,000

Net Cash Received from (Payments for) Settlements of Commodity Derivative Contracts | $

(30,000,000)

$ 84,000,000

Derivative Collateral [Abstract]

Collateral Had on Derivative | $

19,000,000

0

Collateral Held on Derivative | $

0

0

Price Risk Derivative

Derivatives, Fair Value [Line Items]

Other Assets | $

0

1,000,000

Derivative Contracts - Year Two

Derivatives, Fair Value [Line Items]

Net Cash Received from (Payments for) Settlements of Commodity Derivative Contracts | $

600,000

Assets From Price Risk Management Activities | Price Risk Derivative

Derivatives, Fair Value [Line Items]

Assets from Price Risk Management Activities | $

0

65,000,000

Liabilities From Price Risk Management Activities

Derivatives, Fair Value [Line Items]

Assets from Price Risk Management Activities | $

23,000,000

Liabilities from Price Risk Management Activities | $

211,000,000

Liabilities From Price Risk Management Activities | Price Risk Derivative

Derivatives, Fair Value [Line Items]

Liabilities from Price Risk Management Activities | $

^[1]

$ 188,000,000

$ 0

Crude Oil | Derivative Contracts - January (closed) | Price Swaps

Derivatives, Fair Value [Line Items]

Volume (Bbld) | MBbls

151,000

Weighted Average Price

50.06

Crude Oil | Derivative Contracts - February through March (closed) | Price Swaps

Derivatives, Fair Value [Line Items]

Volume (Bbld) | MBbls

201,000

Weighted Average Price

51.29

Crude Oil | Derivative Contracts - April through June | Price Swaps

Derivatives, Fair Value [Line Items]

Volume (Bbld) | MBbls

150,000

Weighted Average Price

51.68

Crude Oil | Derivative Contracts - July through September | Price Swaps

Derivatives, Fair Value [Line Items]

Volume (Bbld) | MBbls

150,000

Weighted Average Price

52.71

Crude Oil | Derivative Contracts - February (closed) | Roll Differential Swap

Derivatives, Fair Value [Line Items]

Volume (Bbld) | MBbls

^[2]

30,000

Weighted Average Price

^[2]

0.11

Crude Oil | Derivative Contracts - March through April (closed) | Roll Differential Swap

Derivatives, Fair Value [Line Items]

Volume (Bbld) | MBbls

^[2]

125,000

Weighted Average Price

^[2]

0.17

Crude Oil | Derivative Contracts - May through December | Roll Differential Swap

Derivatives, Fair Value [Line Items]

Volume (Bbld) | MBbls

^[2]

125,000

Weighted Average Price

^[2]

0.17

Crude Oil | Derivative Contracts - Year Two | Roll Differential Swap

Derivatives, Fair Value [Line Items]

Volume (Bbld) | MBbls

^[2]

125,000

Weighted Average Price

^[2]

0.15

Natural Gas Liquids | Derivative Contracts - January through March (closed) | Mont Belvieu Propane Price Swap

Derivatives, Fair Value [Line Items]

Volume (Bbld) | MBbls

15,000

Weighted Average Price

29.44

Natural Gas Liquids | Derivative Contracts - April through December | Mont Belvieu Propane Price Swap

Derivatives, Fair Value [Line Items]

Volume (Bbld) | MBbls

15,000

Weighted Average Price

29.44

Natural Gas | Derivative Contracts - Year Two | Price Swaps

Derivatives, Fair Value [Line Items]

Volume (MMBtud) | MMBTU

^[3]

20

Weighted Average Price

^[3]

2.75

Natural Gas | Derivative Contracts - January through March (closed) | Price Swaps

Derivatives, Fair Value [Line Items]

Volume (MMBtud) | MMBTU

500

Weighted Average Price

2.99

Natural Gas | Derivative Contacts - April (closed) | Japan Korea Marker Price Swap

Derivatives, Fair Value [Line Items]

Volume (MMBtud) | MMBTU

70

Weighted Average Price

6.65

Natural Gas | Derivative Contracts - April through September | Price Swaps

Derivatives, Fair Value [Line Items]

Volume (MMBtud) | MMBTU

500

Weighted Average Price

2.99

Natural Gas | Derivative Contracts - May through September | Japan Korea Marker Price Swap

Derivatives, Fair Value [Line Items]

Volume (MMBtud) | MMBTU

70

Weighted Average Price

6.65

Natural Gas | Derivative Contracts - October though December | Price Swaps

Derivatives, Fair Value [Line Items]

Volume (MMBtud) | MMBTU

500

Weighted Average Price

2.99

Natural Gas | Offsetting Derivative Contracts - January through March (closed) | Price Swaps

Derivatives, Fair Value [Line Items]

Volume (MMBtud) | MMBTU

500

Weighted Average Price

2.43

Natural Gas | OffSetting Derivative Contracts - April through September | Price Swaps

Derivatives, Fair Value [Line Items]

Volume (MMBtud) | MMBTU

570

Weighted Average Price

2.81

Natural Gas | Offsetting Derivative Contracts - April (closed) | Japan Korea Marker Price Swap

Derivatives, Fair Value [Line Items]

Volume (MMBtud) | MMBTU

0

Weighted Average Price

0

Natural Gas | OffSetting Derivative Contracts - May through September | Japan Korea Marker Price Swap

Derivatives, Fair Value [Line Items]

Volume (MMBtud) | MMBTU

0

Weighted Average Price

0

Natural Gas | OffSetting Derivative Contracts - October through December | Price Swaps

Derivatives, Fair Value [Line Items]

Volume (MMBtud) | MMBTU

500

Weighted Average Price

2.83

Natural Gas | OffSetting Derivative Contracts - Year Two | Price Swaps

Derivatives, Fair Value [Line Items]

Volume (MMBtud) | MMBTU

^[3]

0

Weighted Average Price

^[3]

0

[1]	The current portion of Liabilities from Price Risk Management Activities consists of gross liabilities of $211 million, partially offset by gross assets of $23 million, at March 31, 2021.
[2]	This settlement index is used to fix the differential in pricing between the NYMEX calendar month average and the physical crude oil delivery month.
[3]	In January 2021, EOG executed the early termination provision granting EOG the right to terminate all of its open 2022 natural gas price swap contracts. EOG received net cash of $0.6 million for the settlement of these contracts.

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