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Segment Information
 6 Months Ended
Jun. 30, 2025
Segment Reporting [Abstract]  
Segment Information Segment Information
EOG's operations are all crude oil, natural gas liquids (NGLs) and natural gas exploration and production-related. The Segment Reporting Topic of the Accounting Standards Codification (ASC) establishes standards for reporting information about operating segments in annual and interim financial statements. Operating segments are defined as components of an enterprise about which separate financial information is available and evaluated regularly by the chief operating decision maker, or decision-making group, in deciding how to allocate resources and in assessing performance. EOG's chief operating decision makers (CODM) are the Chairman of the Board and Chief Executive Officer, the Executive Vice President and Chief Operating Officer, the Executive Vice President and Chief Financial Officer, the Executive Vice President, General Counsel and Corporate Secretary, and the Senior Vice Presidents, Exploration and Production.

The CODM routinely review and make operating decisions related to significant issues associated with each of EOG's major producing areas (including in the United States and in Trinidad) and its exploration programs both inside and outside the United States. For segment reporting purposes, the CODM consider the major United States producing areas to be one operating segment. The CODM use operating income (loss) to assess performance and allocate resources.

Financial information by reportable segment is presented below for the three-month and six-month periods ended June 30, 2025 and 2024 (in millions):
 United
States		Trinidad
Other
International (1)
Total
Three Months Ended June 30, 2025
Crude Oil and Condensate$2,969 $5 $— $2,974 
NGLs534 — — 534 
Natural Gas516 84 — 600 
Gains on Mark-to-Market Financial Commodity and Other Derivative Contracts, Net107 — — 107 
Gathering, Processing and Marketing1,246 1 — 1,247 
Gains (Losses) on Asset Dispositions, Net(3)— 3 — 
Other, Net16 — — 16 
Operating Revenues and Other5,385 90 3 5,478 
Lease and Well383 10 3 
Gathering, Processing and Transportation Costs454 1 — 
Marketing Costs1,216 — — 
Depreciation, Depletion and Amortization1,016 37 — 
General and Administrative178 4 4 
Taxes Other Than Income300 1 — 
Other Segment Items (2)
79 7 38 
Operating Income (Loss)1,759 30 (42)1,747 
Interest Income56 
Other Expense(1)
Interest Expense, Net(51)
Income Before Income Taxes$1,751 
Other Segment Disclosures:
Additions to Oil and Gas Properties, Excluding Dry Hole Costs1,626 61 3 1,690 
Interest Expense, Net51 — — 51 
Interest Income52 22 56 
 United
States		Trinidad
Other
International (1)
Total
Three Months Ended June 30, 2024
Crude Oil and Condensate$3,688 $4 $— $3,692 
NGLs515 — — 515 
Natural Gas239 64 — 303 
Losses on Mark-to-Market Financial Commodity and Other Derivative Contracts, Net(47)— — (47)
Gathering, Processing and Marketing1,518 1 — 1,519 
Gains on Asset Dispositions, Net20 — — 20 
Other, Net23 — — 23 
Operating Revenues and Other5,956 69 — 6,025 
Lease and Well381 10 (1)
Gathering, Processing and Transportation Costs423 — — 
Marketing Costs1,490 — — 
Depreciation, Depletion and Amortization949 34 1 
General and Administrative146 3 2 
Taxes Other Than Income337 — — 
Other Segment Items (2)
83 6 31 
Operating Income (Loss)2,147 16 (33)2,130 
Interest Income64 
Other Income2 
Interest Expense, Net(36)
Income Before Income Taxes$2,160 
Other Segment Disclosures:
Additions to Oil and Gas Properties, Excluding Dry Hole Costs1,348 42 — 1,390 
Interest Expense, Net36 — — 36 
Interest Income59 4 1 64 
 United
States		Trinidad
Other
International (1)
Total
Six Months Ended June 30, 2025
Crude Oil and Condensate$6,255 $12 $— $6,267 
NGLs1,106 — — 1,106 
Natural Gas1,070 167 — 1,237 
Losses on Mark-to-Market Financial Commodity and Other Derivative Contracts, Net(84)— — (84)
Gathering, Processing and Marketing2,586 1 — 2,587 
Losses on Asset Dispositions, Net— — (1)(1)
Other, Net35 — — 35 
Operating Revenues and Other10,968 180 (1)11,147 
Lease and Well768 24 5 
Gathering, Processing and Transportation Costs894 1 — 
Marketing Costs2,541 — — 
Depreciation, Depletion and Amortization1,979 87 — 
General and Administrative340 8 9 
Taxes Other Than Income640 2 — 
Other Segment Items (2)
161 40 42 
Operating Income (Loss)3,645 18 (57)3,606 
Interest Income124 
Other Expense(4)
Interest Expense, Net(98)
Income Before Income Taxes$3,628 
Other Segment Disclosures:
Additions to Oil and Gas Properties, Excluding Dry Hole Costs2,984 59 3 3,046 
Total Property, Plant and Equipment, Net34,850 483 28 35,361 
Total Assets44,921 1,169 194 46,284 
Interest Expense, Net98 — — 98 
Interest Income116 5 3 124 
 United
States		Trinidad
Other
International (1)
Total
Six Months Ended June 30, 2024
Crude Oil and Condensate$7,164 $8 $— $7,172 
NGLs1,028 — — 1,028 
Natural Gas556 129 — 685 
Gains on Mark-to-Market Financial Commodity and Other Derivative Contracts, Net
190 — — 190 
Gathering, Processing and Marketing2,977 1 — 2,978 
Gains (Losses) on Asset Dispositions, Net52 (6)— 46 
Other, Net49 — — 49 
Operating Revenues and Other12,016 132 — 12,148 
Lease and Well767 19 — 
Gathering, Processing and Transportation Costs836 — — 
Marketing Costs2,894 — — 
Depreciation, Depletion and Amortization1,991 66 1 
General and Administrative303 7 3 
Taxes Other Than Income674 1 — 
Other Segment Items (2)
140 7 38 
Operating Income (Loss)4,411 32 (42)4,401 
Interest Income132 
Other Expense(4)
Interest Expense, Net(69)
Income Before Income Taxes$4,460 
Other Segment Disclosures:
Additions to Oil and Gas Properties, Excluding Dry Hole Costs2,843 81 1 2,925 
Total Property, Plant and Equipment, Net33,202 423 19 33,644 
Total Assets43,953 1,130 141 45,224 
Interest Expense, Net69 — — 69 
Interest Income121 8 3 132 
(1)    Other International primarily consists of EOG's Australia, Kingdom of Bahrain, Canada and United Arab Emirates operations. EOG is continuing the process of exiting its Canada operations.
(2)    Other Segment Items include Exploration Costs, Dry Hole Costs and Impairments.