Risk Management Activities - Schedule of Derivative Instruments (Details)	12 Months Ended
	Dec. 31, 2025 MMBTU $ / mMBTu $ / bbl
February - July 2025 (closed) \| Price Swaps \| Natural Gas
Derivatives, Fair Value [Line Items]
Volume (MMBtud in thousands)	725
Weighted Average Price (dollars per barrel) \| $ / bbl	3.07
August - December 2025 (closed) \| Price Swaps \| Natural Gas
Derivatives, Fair Value [Line Items]
Volume (MMBtud in thousands)	1,225
Weighted Average Price (dollars per barrel) \| $ / bbl	3.32
August - December 2025 (closed) \| Price Swaps \| Ethane
Derivatives, Fair Value [Line Items]
Volume (MMBtud in thousands)	11
Weighted Average Price Differential (dollars per barrel) \| $ / bbl	10.46
August - December 2025 (closed) \| Price Swaps \| Butane
Derivatives, Fair Value [Line Items]
Volume (MMBtud in thousands)	7
Weighted Average Price Differential (dollars per barrel) \| $ / bbl	36.28
August - December 2025 (closed) \| Price Swaps \| Propane
Derivatives, Fair Value [Line Items]
Volume (MMBtud in thousands)	13
Weighted Average Price Differential (dollars per barrel) \| $ / bbl	30.82
January 2026 (closed) \| Price Swaps \| Natural Gas
Derivatives, Fair Value [Line Items]
Volume (MMBtud in thousands)	460
Weighted Average Price (dollars per barrel) \| $ / bbl	3.78
February - June 2026 \| Price Swaps \| Natural Gas
Derivatives, Fair Value [Line Items]
Volume (MMBtud in thousands)	460
Weighted Average Price (dollars per barrel) \| $ / bbl	3.78
February - June 2026 \| Collar \| Natural Gas
Derivatives, Fair Value [Line Items]
Volume (MMBtud in thousands)	80
Ceiling Price (in dollars per share) \| $ / mMBTu	4.28
Floor Price (in dollars per share) \| $ / mMBTu	3.72
July - December 2026 \| Price Swaps \| Natural Gas
Derivatives, Fair Value [Line Items]
Volume (MMBtud in thousands)	450
Weighted Average Price (dollars per barrel) \| $ / bbl	3.79
July - December 2026 \| Collar \| Natural Gas
Derivatives, Fair Value [Line Items]
Volume (MMBtud in thousands)	70
Ceiling Price (in dollars per share) \| $ / mMBTu	4.23
Floor Price (in dollars per share) \| $ / mMBTu	3.71
January - December 2025 (closed) \| Basis Swaps \| Natural Gas
Derivatives, Fair Value [Line Items]
Volume (MMBtud in thousands)	10
Weighted Average Price Differential (dollars per barrel) \| $ / bbl	0.00
September 2025 (closed) \| Collar \| Natural Gas
Derivatives, Fair Value [Line Items]
Volume (MMBtud in thousands)	50
Ceiling Price (in dollars per share) \| $ / mMBTu	4.65
Floor Price (in dollars per share) \| $ / mMBTu	3.81
October - December 2025 (closed) \| Collar \| Natural Gas
Derivatives, Fair Value [Line Items]
Volume (MMBtud in thousands)	60
Ceiling Price (in dollars per share) \| $ / mMBTu	4.63
Floor Price (in dollars per share) \| $ / mMBTu	3.76
January 2026 (closed) \| Collar \| Natural Gas
Derivatives, Fair Value [Line Items]
Volume (MMBtud in thousands)	80
Ceiling Price (in dollars per share) \| $ / mMBTu	4.28
Floor Price (in dollars per share) \| $ / mMBTu	3.72
January - December 2027 \| Collar \| Natural Gas
Derivatives, Fair Value [Line Items]
Volume (MMBtud in thousands)	120
Ceiling Price (in dollars per share) \| $ / mMBTu	4.41
Floor Price (in dollars per share) \| $ / mMBTu	3.42
January - December 2026 \| Price Swaps \| Ethane
Derivatives, Fair Value [Line Items]
Volume (MMBtud in thousands)	11
Weighted Average Price Differential (dollars per barrel) \| $ / bbl	10.94
January - December 2026 \| Price Swaps \| Propane
Derivatives, Fair Value [Line Items]
Volume (MMBtud in thousands)	1
Weighted Average Price Differential (dollars per barrel) \| $ / bbl	30.24

EOG RESOURCES INC 10-K