EOG Resources (EOG) 10-Q 1 Aug 17 2017 Q2 Quarterly report Financial data

Document and Entity Information

Document and Entity Information - shares	6 Months Ended
	Jun. 30, 2017	Jul. 25, 2017
Document and Entity Information [Abstract]
Entity Registrant Name	EOG RESOURCES INC
Entity Central Index Key	821,189
Current Fiscal Year End Date	--12-31
Entity Filer Category	Large Accelerated Filer
Entity Common Stock, Shares Outstanding		577,448,119
Document Fiscal Year Focus	2,017
Document Fiscal Period Focus	Q2
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Jun. 30, 2017

Consolidated Statements of Inco

Consolidated Statements of Income (Loss) and Comprehensive Income (Loss) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Net Operating Revenues and Other
Crude Oil and Condensate	$ 1,445,454	$ 1,059,690	$ 2,875,515	$ 1,813,401
Natural Gas Liquids	146,907	111,643	300,351	186,962
Natural Gas	224,008	155,983	454,610	321,486
Gains (Losses) on Mark-to-Market Commodity Derivative Contracts	9,446	(44,373)	71,466	(38,938)
Gathering, Processing and Marketing	778,797	485,256	1,505,334	819,209
Losses on Asset Dispositions, Net	(8,916)	(15,550)	(25,674)	(6,403)
Other, Net	16,776	23,091	41,435	34,372
Total	2,612,472	1,775,740	5,223,037	3,130,089
Operating Expenses
Lease and Well	255,186	218,393	510,963	459,258
Transportation Costs	186,356	179,471	365,070	369,925
Gathering and Processing Costs	34,746	29,226	72,890	57,750
Exploration Costs	34,711	30,559	91,605	60,388
Dry Hole Costs	27	(172)	27	74
Impairments	78,934	72,714	272,121	144,331
Marketing Costs	790,599	480,046	1,527,135	820,900
Depreciation, Depletion and Amortization	865,384	862,491	1,681,420	1,791,382
General and Administrative	108,507	97,705	205,745	198,236
Taxes Other Than Income	130,114	93,480	260,407	154,159
Total	2,484,564	2,063,913	4,987,383	4,056,403
Operating Income (Loss)	127,908	(288,173)	235,654	(926,314)
Other Income (Expense), Net	4,972	(20,996)	8,123	(25,433)
Income (Loss) Before Interest Expense and Income Taxes	132,880	(309,169)	243,777	(951,747)
Interest Expense
Interest Expense, Net	70,413	71,108	141,928	139,498
Income (Loss) Before Income Taxes	62,467	(380,277)	101,849	(1,091,245)
Income Tax Provision (Benefit)	39,414	(87,719)	50,279	(326,911)
Net Income (Loss)	$ 23,053	$ (292,558)	$ 51,570	$ (764,334)
Net Income (Loss) Per Share
Basic	$ 0.04	$ (0.53)	$ 0.09	$ (1.40)
Diluted	0.04	(0.53)	0.09	(1.40)
Dividends Declared per Common Share	$ 0.1675	$ 0.1675	$ 0.3350	$ 0.3350
Average Number of Common Shares
Basic	574,439	547,335	574,162	547,029
Diluted	578,483	547,335	578,573	547,029
Other Comprehensive Income
Foreign Currency Translation Adjustments	$ 1,260	$ 5,844	$ 1,569	$ 8,029
Other, Net of Tax	(86)	23	(49)	45
Other Comprehensive Income	1,174	5,867	1,520	8,074
Comprehensive Income (Loss)	$ 24,227	$ (286,691)	$ 53,090	$ (756,260)

Consolidated Balance Sheets

Consolidated Balance Sheets - USD ($) $ in Thousands	Jun. 30, 2017	Dec. 31, 2016
Current Assets
Cash and Cash Equivalents	$ 1,649,443	$ 1,599,895
Accounts Receivable, Net	1,114,454	1,216,320
Inventories	336,198	350,017
Assets from Price Risk Management Activities	4,746	0
Income Taxes Receivable	91,256	12,305
Other	187,276	206,679
Total	3,383,373	3,385,216
Property, Plant and Equipment
Oil and Gas Properties (Successful Efforts Method)	50,973,760	49,592,091
Other Property, Plant and Equipment	3,883,759	4,008,564
Total Property, Plant and Equipment	54,857,519	53,600,655
Less: Accumulated Depreciation, Depletion and Amortization	(29,277,359)	(27,893,577)
Total Property, Plant and Equipment, Net	25,580,160	25,707,078
Deferred Income Taxes	16,888	16,140
Other Assets	283,196	190,767
Total Assets	29,263,617	29,299,201
Current Liabilities
Accounts Payable	1,615,170	1,511,826
Accrued Taxes Payable	155,458	118,411
Dividends Payable	96,145	96,120
Liabilities from Price Risk Management Activities	0	61,817
Current Portion of Long-Term Debt	606,454	6,579
Other	249,027	232,538
Total	2,722,254	2,027,291
Long-Term Debt	6,380,350	6,979,779
Other Liabilities	1,199,778	1,282,142
Deferred Income Taxes	5,059,520	5,028,408
Commitments and Contingencies (Note 8)
Stockholders' Equity
Common Stock, $0.01 Par, 1,280,000,000 Shares Authorized at June 30, 2017, 640,000,000 Shares Authorized at December 31, 2016, 577,711,399 Shares Issued at June 30, 2017 and 576,950,272 Shares Issued at December 31, 2016	205,777	205,770
Additional Paid in Capital	5,485,832	5,420,385
Accumulated Other Comprehensive Loss	(17,490)	(19,010)
Retained Earnings	8,256,359	8,398,118
Common Stock Held in Treasury, 316,339 Shares at June 30, 2017 and 250,155 Shares at December 31, 2016	(28,763)	(23,682)
Total Stockholders' Equity	13,901,715	13,981,581
Total Liabilities and Stockholders' Equity	$ 29,263,617	$ 29,299,201

Consolidated Balance Sheets (Pa

Consolidated Balance Sheets (Parenthetical) - $ / shares	Jun. 30, 2017	Dec. 31, 2016
Common Stock
Common Stock, Par Value (in dollars per share)	$ 0.01	$ 0.01
Common Stock, Shares Authorized (in shares)	1,280,000,000	640,000,000
Common Stock, Shares Issued (in shares)	577,711,399	576,950,272
Treasury Stock (in shares)
Common Stock Held in Treasury, Shares	316,339	250,155

Consolidated Statements of Cash

Consolidated Statements of Cash Flows - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016
Cash Flows from Operating Activities
Net Income (Loss)	$ 51,570	$ (764,334)
Items Not Requiring (Providing) Cash
Depreciation, Depletion and Amortization	1,681,420	1,791,382
Impairments	272,121	144,331
Stock-Based Compensation Expenses	58,061	59,471
Deferred Income Taxes	35,162	(384,294)
Losses on Asset Dispositions, Net	(25,674)	(6,403)
Other, Net	(6,691)	29,991
Dry Hole Costs	27	74
Mark-to-Market Commodity Derivative Contracts
Total (Gains) Losses	(71,466)	38,938
Net Cash Received from Settlements of Commodity Derivative Contracts	2,591	2,852
Excess Tax Benefits from Stock-Based Compensation	0	(11,811)
Other, Net	(185)	5,008
Changes in Components of Working Capital and Other Assets and Liabilities
Accounts Receivable	103,786	(22,572)
Inventories	(6,129)	95,813
Accounts Payable	76,704	(203,358)
Accrued Taxes Payable	(39,124)	93,320
Other Assets	(61,089)	(33,589)
Other Liabilities	(66,869)	1,565
Changes in Components of Working Capital Associated with Investing and Financing Activities	(79,138)	(54,453)
Net Cash Provided by Operating Activities	1,976,425	794,737
Investing Cash Flows
Additions to Oil and Gas Properties	(1,885,417)	(1,143,549)
Additions to Other Property, Plant and Equipment	(88,076)	(44,584)
Proceeds from Sales of Assets	175,260	252,529
Changes in Components of Working Capital Associated with Investing Activities	79,138	54,477
Net Cash Used in Investing Activities	(1,719,095)	(881,127)
Financing Cash Flows
Net Commercial Paper Repayments	0	(259,718)
Long-Term Debt Borrowings	0	991,097
Long-Term Debt Repayments	0	(400,000)
Dividends Paid	(192,984)	(184,036)
Excess Tax Benefits from Stock-Based Compensation	0	11,811
Treasury Stock Purchased	(21,678)	(28,755)
Proceeds from Stock Options Exercised and Employee Stock Purchase Plan	9,608	10,624
Debt Issuance Costs	0	(1,602)
Repayment of Capital Lease Obligation	(3,251)	(3,150)
Other, Net	0	(24)
Net Cash (Used in) Provided by Financing Activities	(208,305)	136,247
Effect of Exchange Rate Changes on Cash	523	11,359
Increase in Cash and Cash Equivalents	49,548	61,216
Cash and Cash Equivalents at Beginning of Period	1,599,895	718,506
Cash and Cash Equivalents at End of Period	$ 1,649,443	$ 779,722

(Summary of Significant Account

(Summary of Significant Accounting Policies (Notes)	6 Months Ended
	Jun. 30, 2017
Accounting Policies [Abstract]
Summary of Significant Accounting Policies	Summary of Significant Accounting Policies General. The condensed consolidated financial statements of EOG Resources, Inc., together with its subsidiaries (collectively, EOG), included herein have been prepared by management without audit pursuant to the rules and regulations of the United States Securities and Exchange Commission (SEC). Accordingly, they reflect all normal recurring adjustments which are, in the opinion of management, necessary for a fair presentation of the financial results for the interim periods presented. Certain information and notes normally included in financial statements prepared in accordance with accounting principles generally accepted in the United States of America (U.S. GAAP) have been condensed or omitted pursuant to such rules and regulations. However, management believes that the disclosures included either on the face of the financial statements or in these notes are sufficient to make the interim information presented not misleading. These condensed consolidated financial statements should be read in conjunction with the consolidated financial statements and the notes thereto included in EOG's Annual Report on Form 10-K for the year ended December 31, 2016 , filed on February 27, 2017 (EOG's 2016 Annual Report). The preparation of financial statements in conformity with U.S. GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the reporting period. Actual results could differ from those estimates. The operating results for the three and six months ended June 30, 2017 , are not necessarily indicative of the results to be expected for the full year. Effective January 1, 2017, EOG adopted the provisions of Accounting Standards Update (ASU) 2016-09, "Improvements to Employee Share-Based Payment Accounting" (ASU 2016-09), which amends certain aspects of accounting for share-based payment arrangements. ASU 2016-09 revises or provides alternative accounting for the tax impacts of share-based payment arrangements, forfeitures and minimum statutory tax withholdings and prescribes certain disclosures to be made in the period the new standard is adopted. There was no impact to retained earnings with respect to excess tax benefits. EOG began recognizing all excess tax benefits and tax deficiencies as income tax provision or benefit as discrete events. Net excess tax benefits recognized within income tax provision was $12 million for the six months ended June 30, 2017 . The treatment of forfeitures did not change as EOG elected to continue the current process of estimating the number of forfeitures. As such, this had no cumulative effect on retained earnings. EOG elected to present changes to the statements of cash flows on a prospective transition method. Effective January 1, 2017, EOG adopted the provisions of ASU 2015-17, "Income Taxes (Topic 740): Balance Sheet Classification of Deferred Taxes" (ASU 2015-17), which simplifies the presentation of deferred taxes in a classified balance sheet by eliminating the requirement to separate deferred income tax liabilities and assets into current and noncurrent amounts. Instead, ASU 2015-17 requires that all deferred tax liabilities and assets be shown as noncurrent in a classified balance sheet. In connection with the adoption of ASU 2015-17, EOG restated its December 31, 2016 balance sheet to reclassify $169 million of current deferred income tax assets as noncurrent. Recently Issued Accounting Standards. In February 2017, the Financial Accounting Standards Board (FASB) issued ASU 2017-05, “Other Income - Gains and Losses from the Derecognition of Nonfinancial Assets (Subtopic 610-20) - Clarifying the Scope of Asset Derecognition Guidance and Accounting for Partial Sales of Nonfinancial Assets” (ASU 2017-05). ASU 2017-05 clarifies the scope and application of Accounting Standards Codification (ASC) 610-20 to the sale or transfer of nonfinancial assets and, in substance, nonfinancial assets to noncustomers, including partial sales. ASU 2017-05 is effective for interim and annual periods beginning after December 15, 2017, and early adoption is permitted, at the same time of adoption of ASU 2014-09, “Revenue From Contracts With Customers” (ASU 2014-09). EOG does not intend to early adopt ASU 2017-05. EOG is reviewing the provisions of ASU 2017-05 in connection with the adoption of ASU 2014-09 to determine its impact on its consolidated financial statements and related disclosures. In January 2017, the FASB issued ASU 2017-01, "Business Combinations (Topic 805): Clarifying the Definition of a Business" (ASU 2017-01), which clarifies the definition of a business to provide guidance in evaluating whether transactions should be accounted for as acquisitions (or disposals) of assets or businesses. ASU 2017-01 provides a screen to determine when a set of assets is not a business, requiring that when substantially all fair value of gross assets acquired (or disposed of) is concentrated in a single identifiable asset or group of similar identifiable assets, the set of assets is not a business. A framework is provided to assist in evaluating whether both an input and a substantive process are present for the set to be a business. ASU 2017-01 is effective for annual periods beginning after December 15, 2017, including interim periods within those annual periods. No disclosures are required at transition and early adoption is permitted. EOG is evaluating ASU 2017-01 to determine the impact on its consolidated financial statements and related disclosures. In August 2016, the FASB issued ASU 2016-15, “Statement of Cash Flows (Topic 230) - Classification of Certain Cash Receipts and Cash Payments” (ASU 2016-15). ASU 2016-15 reduces existing diversity in practice by providing guidance on the classification of eight specific cash receipts and cash payments transactions in the statement of cash flows. The new standard is effective for fiscal years beginning after December 15, 2017 and interim periods within those fiscal years, and is required to be adopted using a retrospective approach, if practicable. Early adoption is permitted. EOG does not expect the adoption of the new standard to have a material impact on its consolidated financial statements and related disclosures. In February 2016, the FASB issued ASU 2016-02, "Leases (Topic 842)" (ASU 2016-02), which significantly changes accounting for leases by requiring that lessees recognize a right-of-use asset and a related lease liability representing the obligation to make lease payments, for virtually all lease transactions. Additional disclosures about an entity's lease transactions will also be required. ASU 2016-02 defines a lease as "a contract, or part of a contract, that conveys the right to control the use of identified property, plant or equipment (an identified asset) for a period of time in exchange for consideration." ASU 2016-02 is effective for interim and annual periods beginning after December 31, 2018 and early adoption is permitted. Lessees and lessors are required to recognize and measure leases at the beginning of the earliest period presented in the financial statements using a modified retrospective approach. EOG is reviewing the provisions of ASU 2016-02 to determine the impact on its consolidated financial statements and related disclosures. In May 2014, the FASB issued ASU 2014-09, which will require entities to recognize revenue to depict the transfer of promised goods or services to customers in an amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods or services. ASU 2014-09 will supersede most current guidance related to revenue recognition when it becomes effective. The new standard also will require expanded disclosures regarding the nature, amount, timing and certainty of revenue and cash flows from contracts with customers. ASU 2014-09 is effective for interim and annual reporting periods beginning after December 15, 2017, and early adoption is permitted. The new standard permits adoption through the use of either the full retrospective approach or a modified retrospective approach. In May 2016, the FASB issued ASU 2016-11, which rescinds certain SEC guidance in the related ASC, including guidance related to the use of the "entitlements" method of revenue recognition used by EOG. EOG will adopt ASU 2014-09 utilizing the modified retrospective approach with a cumulative adjustment to retained earnings on January 1, 2018. Based on its current assessments to-date, EOG does not anticipate the provisions of ASU 2014-09 will have a material impact on EOG's consolidated financial statements and related disclosures. EOG continues to analyze ASU 2014-09 in order to finalize implementation and determine the impact on EOG's financial statements and related disclosures.

Stock-Based Compensation (Notes

Stock-Based Compensation (Notes)	6 Months Ended
	Jun. 30, 2017
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Stock-Based Compensation	Stock-Based Compensation As more fully discussed in Note 7 to the Consolidated Financial Statements included in EOG's 2016 Annual Report, EOG maintains various stock-based compensation plans. Stock-based compensation expense is included on the Condensed Consolidated Statements of Income (Loss) and Comprehensive Income (Loss) based upon the job function of the employees receiving the grants as follows (in millions): Three Months Ended Six Months Ended 2017 2016 2017 2016 Lease and Well $ 9.6 $ 8.9 $ 20.5 $ 19.3 Gathering and Processing Costs 0.2 0.3 0.4 0.6 Exploration Costs 5.3 5.0 11.5 11.5 General and Administrative 12.5 12.9 25.7 28.1 Total $ 27.6 $ 27.1 $ 58.1 $ 59.5 The Amended and Restated EOG Resources, Inc. 2008 Omnibus Equity Compensation Plan (2008 Plan) provides for grants of stock options, stock-settled stock appreciation rights (SARs), restricted stock and restricted stock units, performance units and performance stock and other stock-based awards. At June 30, 2017 , approximately 20.9 million common shares remained available for grant under the 2008 Plan. EOG's policy is to issue shares related to the 2008 Plan from previously authorized unissued shares or treasury shares to the extent treasury shares are available. Stock Options and Stock-Settled Stock Appreciation Rights and Employee Stock Purchase Plan . The fair value of stock option grants and SAR grants is estimated using the Hull-White II binomial option pricing model. The fair value of Employee Stock Purchase Plan (ESPP) grants is estimated using the Black-Scholes-Merton model. Stock-based compensation expense related to stock option, SAR and ESPP grants totaled $11.1 million and $13.0 million during the three months ended June 30, 2017 and 2016 , respectively, and $22.1 million and $26.2 million during the six months ended June 30, 2017 and 2016 , respectively. Weighted average fair values and valuation assumptions used to value stock option, SAR and ESPP grants during the six -month periods ended June 30, 2017 and 2016 are as follows: Stock Options/SARs ESPP Six Months Ended Six Months Ended 2017 2016 2017 2016 Weighted Average Fair Value of Grants $ 26.64 $ 21.04 $ 24.28 $ 17.56 Expected Volatility 30.46 % 35.90 % 30.33 % 36.79 % Risk-Free Interest Rate 1.39 % 0.93 % 0.65 % 0.49 % Dividend Yield 0.68 % 0.91 % 0.69 % 0.82 % Expected Life 5.3 years 5.3 years 0.5 years 0.5 years Expected volatility is based on an equal weighting of historical volatility and implied volatility from traded options in EOG's common stock. The risk-free interest rate is based upon United States Treasury yields in effect at the time of grant. The expected life is based upon historical experience and contractual terms of stock option, SAR and ESPP grants. The following table sets forth stock option and SAR transactions for the six -month periods ended June 30, 2017 and 2016 (stock options and SARs in thousands): Six Months Ended Six Months Ended Number of Stock Options/SARs Weighted Average Grant Price Number of Stock Options/SARs Weighted Average Grant Price Outstanding at January 1 9,850 $ 75.53 10,744 $ 67.98 Granted 16 96.41 11 71.51 Exercised (1) (783 ) 57.05 (790 ) 44.31 Forfeited (189 ) 89.40 (150 ) 85.91 Outstanding at June 30 (2) 8,894 $ 76.90 9,815 $ 69.61 Vested or Expected to Vest (3) 8,594 $ 76.53 9,490 $ 69.24 Exercisable at June 30 (4) 4,973 $ 68.43 5,638 $ 61.50 (1) The total intrinsic value of stock options/SARs exercised for the six months ended June 30, 2017 and 2016 was $33.5 million and $26.8 million , respectively. The intrinsic value is based upon the difference between the market price of EOG's common stock on the date of exercise and the grant price of the stock options/SARs. (2) The total intrinsic value of stock options/SARs outstanding at June 30, 2017 and 2016 was $147.8 million and $173.1 million , respectively. At June 30, 2017 and 2016 , the weighted average remaining contractual life was 3.6 years and 3.6 years , respectively. (3) The total intrinsic value of stock options/SARs vested or expected to vest at June 30, 2017 and 2016 was $145.7 million and $170.3 million , respectively. At June 30, 2017 and 2016 , the weighted average remaining contractual life was 3.5 years and 3.6 years , respectively. (4) The total intrinsic value of stock options/SARs exercisable at June 30, 2017 and 2016 was $120.9 million and $137.7 million , respectively. At June 30, 2017 and 2016 , the weighted average remaining contractual life was 2.2 years and 2.4 years , respectively. At June 30, 2017 , unrecognized compensation expense related to non-vested stock option, SAR and ESPP grants totaled $75.6 million . Such unrecognized expense will be amortized on a straight-line basis over a weighted average period of 2.3 years . Restricted Stock and Restricted Stock Units. Employees may be granted restricted (non-vested) stock and/or restricted stock units without cost to them. Stock-based compensation expense related to restricted stock and restricted stock units totaled $15.6 million and $13.7 million for the three months ended June 30, 2017 and 2016 , respectively, and $34.2 million and $32.4 million for the six months ended June 30, 2017 and 2016 , respectively. The following table sets forth restricted stock and restricted stock unit transactions for the six -month periods ended June 30, 2017 and 2016 (shares and units in thousands): Six Months Ended Six Months Ended Number of Shares and Units Weighted Average Grant Date Fair Value Number of Shares and Units Weighted Average Grant Date Fair Value Outstanding at January 1 3,962 $ 79.63 4,908 $ 70.35 Granted 437 98.97 306 75.56 Released (1) (407 ) 63.20 (798 ) 61.36 Forfeited (143 ) 83.92 (203 ) 76.97 Outstanding at June 30 (2) 3,849 $ 83.40 4,213 $ 72.11 (1) The total intrinsic value of restricted stock and restricted stock units released for the six months ended June 30, 2017 and 2016 was $40.4 million and $60.8 million , respectively. The intrinsic value is based upon the closing price of EOG's common stock on the date the restricted stock and restricted stock units are released. (2) The total intrinsic value of restricted stock and restricted stock units outstanding at June 30, 2017 and 2016 was $348.4 million and $351.5 million , respectively. At June 30, 2017 , unrecognized compensation expense related to restricted stock and restricted stock units totaled $151.1 million . Such unrecognized expense will be amortized on a straight-line basis over a weighted average period of 2.5 years . Performance Units and Performance Stock. EOG has granted performance units and/or performance stock (Performance Awards) to its executive officers annually since 2012. As more fully discussed in the grant agreements, the performance metric applicable to the Performance Awards is EOG's total shareholder return over a three -year performance period relative to the total shareholder return of a designated group of peer companies (Performance Period). Upon the application of the performance multiple at the completion of the Performance Period, a minimum of 0% and a maximum of 200% of the Performance Awards granted could be outstanding. Subject to the termination provisions set forth in the grant agreements and the applicable performance multiple, the grants of Performance Awards will generally "cliff" vest five years from the date of grant. The fair value of the Performance Awards is estimated using a Monte Carlo simulation. At December 31, 2016, 545,290 Performance Awards were outstanding. Upon completion of the Performance Period for the Performance Awards granted in 2013, a performance multiple of 200% was applied to the 2013 grants resulting in an additional grant of 118,834 Performance Awards in February 2017. A total of 89,224 Performance Awards were released during the six months ended June 30, 2017 , with a total intrinsic value of $9.0 million , based upon the closing price of EOG's common stock on the release date. Upon the application of the performance multiple at the completion of the remaining Performance Periods, a minimum of 299,540 and a maximum of 850,260 Performance Awards could be outstanding. There were 574,900 Performance Awards outstanding as of June 30, 2017 . The total intrinsic value of Performance Awards outstanding at June 30, 2017 was $52.0 million . Stock-based compensation expense related to the Performance Award grants totaled $0.9 million and $0.4 million for the three month periods ended June 30, 2017 and 2016 , respectively, and $1.8 million and $0.9 million for the six months ended June 30, 2017 and 2016 , respectively. At June 30, 2017 , unrecognized compensation expense related to Performance Awards totaled $8.6 million . Such unrecognized expense will be amortized on a straight-line basis over a weighted average period of 2.5 years .

Net Income (Loss) Per Share (No

Net Income (Loss) Per Share (Notes)	6 Months Ended
	Jun. 30, 2017
Earnings Per Share [Abstract]
Net Income (Loss) Per Share	Net Income (Loss) Per Share The following table sets forth the computation of Net Income (Loss) Per Share for the three -month and six -month periods ended June 30, 2017 and 2016 (in thousands, except per share data): Three Months Ended Six Months Ended 2017 2016 2017 2016 Numerator for Basic and Diluted Earnings Per Share - Net Income (Loss) $ 23,053 $ (292,558 ) $ 51,570 $ (764,334 ) Denominator for Basic Earnings Per Share - Weighted Average Shares 574,439 547,335 574,162 547,029 Potential Dilutive Common Shares - Stock Options/SARs 1,452 — 1,669 — Restricted Stock/Units and Performance Units/Stock 2,592 — 2,742 — Denominator for Diluted Earnings Per Share - Adjusted Diluted Weighted Average Shares 578,483 547,335 578,573 547,029 Net Income (Loss) Per Share Basic $ 0.04 $ (0.53 ) $ 0.09 $ (1.40 ) Diluted $ 0.04 $ (0.53 ) $ 0.09 $ (1.40 ) The diluted earnings per share calculation excludes stock options, SARs, restricted stock and units and performance units that were anti-dilutive. Shares underlying the excluded stock options and SARs totaled 3.4 million and 10.2 million shares for the three months ended June 30, 2017 and 2016 , respectively, and 2.0 million and 10.4 million shares for the six months ended June 30, 2017 and 2016 , respectively. For both the three months and six months ended June 30, 2016 , 4.6 million shares of restricted stock, restricted stock units and performance units were excluded.

Supplemental Cash Flow Informat

Supplemental Cash Flow Information (Notes)	6 Months Ended
	Jun. 30, 2017
Supplemental Cash Flow Information [Abstract]
Supplemental Cash Flow Information	Supplemental Cash Flow Information Net cash paid for interest and income taxes was as follows for the six -month periods ended June 30, 2017 and 2016 (in thousands): Six Months Ended 2017 2016 Interest (1) $ 136,733 $ 118,120 Income Taxes, Net of Refunds Received $ 98,157 $ (10,997 ) (1) Net of capitalized interest of $14 million and $17 million for the six months ended June 30, 2017 and 2016 , respectively. EOG's accrued capital expenditures at June 30, 2017 and 2016 were $488 million and $371 million , respectively. Non-cash investing activities for the six months ended June 30, 2017 , included non-cash additions of $154 million to EOG's oil and gas properties as a result of property exchanges.

Segment Information (Notes)

Segment Information (Notes)	6 Months Ended
	Jun. 30, 2017
Segment Reporting [Abstract]
Segment Information	Segment Information Selected financial information by reportable segment is presented below for the three -month and six -month periods ended June 30, 2017 and 2016 (in thousands): Three Months Ended Six Months Ended 2017 2016 2017 2016 Net Operating Revenues and Other United States $ 2,530,885 $ 1,704,320 $ 5,050,734 $ 2,983,989 Trinidad 72,299 62,731 146,222 125,524 Other International (1) 9,288 8,689 26,081 20,576 Total $ 2,612,472 $ 1,775,740 $ 5,223,037 $ 3,130,089 Operating Income (Loss) United States $ 130,314 $ (280,593 ) $ 249,845 $ (905,577 ) Trinidad 32,360 17,054 48,773 25,932 Other International (1) (34,766 ) (24,634 ) (62,964 ) (46,669 ) Total 127,908 (288,173 ) 235,654 (926,314 ) Reconciling Items Other Income (Expense), Net 4,972 (20,996 ) 8,123 (25,433 ) Interest Expense, Net (70,413 ) (71,108 ) (141,928 ) (139,498 ) Income (Loss) Before Income Taxes $ 62,467 $ (380,277 ) $ 101,849 $ (1,091,245 ) (1) Other International primarily consists of EOG's United Kingdom, China, Canada and Argentina operations. The Argentina operations were sold in the third quarter of 2016. Total assets by reportable segment are presented below at June 30, 2017 and December 31, 2016 (in thousands): At June 30, 2017 At December 31, 2016 Total Assets United States $ 27,676,982 $ 27,746,851 Trinidad 947,166 889,253 Other International (1) 639,469 663,097 Total $ 29,263,617 $ 29,299,201 (1) Other International primarily consists of EOG's United Kingdom, China, Canada and Argentina operations. The Argentina operations were sold in the third quarter of 2016.

Asset Retirement Obligations (N

Asset Retirement Obligations (Notes)	6 Months Ended
	Jun. 30, 2017
Asset Retirement Obligation [Abstract]
Asset Retirement Obligations	Asset Retirement Obligations The following table presents the reconciliation of the beginning and ending aggregate carrying amounts of short-term and long-term legal obligations associated with the retirement of property, plant and equipment for the six -month periods ended June 30, 2017 and 2016 (in thousands): Six Months Ended 2017 2016 Carrying Amount at Beginning of Period $ 912,926 $ 811,554 Liabilities Incurred 19,276 18,258 Liabilities Settled (1) (28,726 ) (18,043 ) Accretion 17,010 16,521 Revisions 3,646 (635 ) Foreign Currency Translations 3,808 (6,745 ) Carrying Amount at End of Period $ 927,940 $ 820,910 Current Portion $ 33,922 $ 8,349 Noncurrent Portion $ 894,018 $ 812,561 (1) Includes settlements related to asset sales. The current and noncurrent portions of EOG's asset retirement obligations are included in Current Liabilities - Other and Other Liabilities, respectively, on the Condensed Consolidated Balance Sheets.

Exploratory Well Costs (Notes)

Exploratory Well Costs (Notes)	6 Months Ended
	Jun. 30, 2017
Capitalized Exploratory Well Costs [Abstract]
Exploratory Well Costs	Exploratory Well Costs EOG's net changes in capitalized exploratory well costs for the six -month period ended June 30, 2017 , are presented below (in thousands): Six Months Ended Balance at January 1 $ — Additions Pending the Determination of Proved Reserves 2,995 Reclassifications to Proved Properties — Costs Charged to Expense — Balance at June 30 $ 2,995

Commitments and Contingencies (

Commitments and Contingencies (Notes)	6 Months Ended
	Jun. 30, 2017
Commitments and Contingencies Disclosure [Abstract]
Commitments and Contingencies	Commitments and Contingencies There are currently various suits and claims pending against EOG that have arisen in the ordinary course of EOG's business, including contract disputes, personal injury and property damage claims and title disputes. While the ultimate outcome and impact on EOG cannot be predicted, management believes that the resolution of these suits and claims will not, individually or in the aggregate, have a material adverse effect on EOG's consolidated financial position, results of operations or cash flow. EOG records reserves for contingencies when information available indicates that a loss is probable and the amount of the loss can be reasonably estimated.

Pension and Postretirement Bene

Pension and Postretirement Benefits (Notes)	6 Months Ended
	Jun. 30, 2017
Retirement Benefits [Abstract]
Pension and Postretirement Benefits	Pension and Postretirement Benefits EOG has defined contribution pension plans in place for most of its employees in the United States, Trinidad and the United Kingdom, and a defined benefit pension plan covering certain of its employees in Trinidad. For the six months ended June 30, 2017 and 2016 , EOG's total costs recognized for these pension plans were $18.4 million and $17.2 million , respectively. EOG also has postretirement medical and dental plans in place for eligible employees and their dependents in the United States and Trinidad, the costs of which are not material.

Long-Term Debt (Notes)

Long-Term Debt (Notes)	6 Months Ended
	Jun. 30, 2017
Debt Disclosure [Abstract]
Long-Term Debt	Long-Term Debt EOG had no outstanding commercial paper borrowings or uncommitted credit facility borrowings at June 30, 2017 , and did not utilize any such borrowings during the six months ended June 30, 2017 . During the six months ended June 30, 2016 , EOG utilized commercial paper, bearing market interest rates, for various corporate financing purposes. The average borrowings outstanding under the commercial paper program were $210 million during the six months ended June 30, 2016 . The weighted average interest rate for commercial paper borrowings was 0.76% during the six months ended June 30, 2016 . At June 30, 2017 , $600 million aggregate principal amount of EOG's 5.875% Senior Notes due 2017 was reclassified as Current Portion of Long-Term Debt on the Condensed Consolidated Balance Sheets based upon its intent and ability to repay these notes upon maturity with cash in the third quarter of 2017. EOG currently has a $2.0 billion senior unsecured Revolving Credit Agreement (Agreement) with domestic and foreign lenders. The Agreement has a scheduled maturity date of July 21, 2020 , and includes an option for EOG to extend, on up to two occasions, the term for successive one-year periods subject to certain terms and conditions. Advances under the Agreement will accrue interest based, at EOG's option, on either the London InterBank Offered Rate plus an applicable margin (Eurodollar rate) or the base rate (as defined in the Agreement) plus an applicable margin. At June 30, 2017 , there were no borrowings or letters of credit outstanding under the Agreement. The Eurodollar rate and applicable base rate, had there been any amounts borrowed under the Agreement, would have been 2.22% and 4.25% , respectively.

Fair Value Measurements (Notes)

Fair Value Measurements (Notes)	6 Months Ended
	Jun. 30, 2017
Fair Value Disclosures [Abstract]
Fair Value Measurements	Fair Value Measurements As more fully discussed in Note 13 to the Consolidated Financial Statements included in EOG's 2016 Annual Report, certain of EOG's financial and nonfinancial assets and liabilities are reported at fair value on the Condensed Consolidated Balance Sheets. 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 June 30, 2017 and December 31, 2016 (in millions): Fair Value Measurements Using: Quoted Prices in Active Markets (Level 1) Significant Other Observable Inputs (Level 2) Significant Unobservable Inputs (Level 3) Total At June 30, 2017 Financial Assets: Natural Gas Swaps $ — $ 1 $ — $ 1 Natural Gas Options/Collars — 7 — 7 At December 31, 2016 Financial Assets: Natural Gas Options/Collars $ — $ 1 $ — $ 1 Financial Liabilities: Crude Oil Swaps $ — $ 36 $ — $ 36 Natural Gas Swaps — 4 — 4 Natural Gas Options/Collars — 22 — 22 The estimated fair value of commodity derivative contracts was based upon forward commodity price curves based on quoted market prices. Commodity derivative contracts were valued by utilizing an independent third-party derivative valuation provider who uses various types of valuation models, as applicable. The initial measurement of asset retirement obligations at fair value is calculated using discounted cash flow techniques and based on internal estimates of future retirement costs associated with property, plant and equipment. Significant Level 3 inputs used in the calculation of asset retirement obligations include plugging costs and reserve lives. A reconciliation of EOG's asset retirement obligations is presented in Note 6. Proved oil and gas properties and other assets with a carrying amount of $253 million were written down to their fair value of $92 million , resulting in pretax impairment charges of $161 million for the six months ended June 30, 2017 . Included in the $161 million pretax impairment charges are $138 million of impairments of proved oil and gas properties and other property, plant and equipment for which EOG utilized an accepted offer from a third-party purchaser as the basis for determining fair value. In addition, EOG recorded pretax impairment charges of $23 million for a commodity price-related write-down of other assets. EOG utilized average prices per acre from comparable market transactions as the basis for determining the fair value of unproved properties received in non-cash property exchanges. See Note 4. Fair Value of Debt. At June 30, 2017 and December 31, 2016 , EOG had outstanding $6,990 million aggregate principal amount of senior notes, which had estimated fair values at such dates of approximately $7,181 million and $7,190 million , respectively. The estimated fair value of debt was based upon quoted market prices and, where such prices were not available, other observable (Level 2) inputs regarding interest rates available to EOG at the end of each respective period.

Risk Management Activities (Not

Risk Management Activities (Notes)	6 Months Ended
	Jun. 30, 2017
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Risk Management Activities	Risk Management Activities Commodity Price Risk . As more fully discussed in Note 12 to the Consolidated Financial Statements included in EOG's 2016 Annual Report, EOG engages in price risk management activities from time to time. These activities are intended to manage EOG's exposure to fluctuations in commodity prices for crude oil and natural gas. EOG utilizes financial commodity derivative instruments, primarily price swap, option, swaption, collar and basis swap contracts, as a means to manage this price risk. EOG has not designated any of its financial commodity derivative contracts as accounting hedges and, accordingly, accounts for financial commodity derivative contracts using the mark-to-market accounting method. Commodity Derivative Contracts. Prices received by EOG for its crude oil production generally vary from U.S. New York Mercantile Exchange (NYMEX) West Texas Intermediate prices due to adjustments for delivery location (basis) and other factors. EOG entered into crude oil basis swap contracts in order to fix the differential between pricing in Midland, Texas, and Cushing, Oklahoma. Presented below is a comprehensive summary of EOG's crude oil basis swap contracts for the six months ended June 30, 2017 . The weighted average price differential expressed in dollars per barrel ($/Bbl) represents the amount of reduction to Cushing, Oklahoma, prices for the notional volumes expressed in barrels per day (Bbld) covered by the basis swap contracts. Crude Oil Basis Swap Contracts Volume (Bbld) Weighted Average Price Differential ($/Bbl) 2018 January 1, 2018 through December 31, 2018 15,000 $ 1.063 2019 January 1, 2019 through December 31, 2019 20,000 $ 1.075 On March 14, 2017, EOG executed the optional early termination provision granting EOG the right to terminate certain crude oil price swaps with notional volumes of 30,000 Bbld at a weighted average price of $50.05 per Bbl for the period March 1, 2017 through June 30, 2017. EOG received cash of $4.6 million for the early termination of these contracts, which are included in the below table. Presented below is a comprehensive summary of EOG's crude oil price swap contracts for the six months ended June 30, 2017, with notional volumes expressed in Bbld and prices expressed in $/Bbl. Crude Oil Price Swap Contracts Volume (Bbld) Weighted Average Price ($/Bbl) 2017 January 1, 2017 through February 28, 2017 (closed) 35,000 $ 50.04 March 1, 2017 through June 30, 2017 (closed) 30,000 50.05 On March 14, 2017, EOG entered into a crude oil price swap contract for the period March 1, 2017 through June 30, 2017, with notional volumes of 5,000 Bbld at a price of $48.81 per Bbl. This contract offsets the remaining crude oil price swap contract for the same time period with notional volumes of 5,000 Bbld at a price of $50.00 per Bbl. The net cash EOG received for settling these contracts was $0.7 million . The offsetting contracts are excluded from the above table. Presented below is a comprehensive summary of EOG's natural gas price swap contracts for the six months ended June 30, 2017 , with notional volumes expressed in million British thermal units (MMBtu) per day (MMBtud) and prices expressed in dollars per MMBtu ($/MMBtu). Natural Gas Price Swap Contracts Volume (MMBtud) Weighted Average Price ($/MMBtu) 2017 March 1, 2017 through July 31, 2017 (closed) 30,000 $ 3.10 August 1, 2017 through November 30, 2017 30,000 3.10 2018 March 1, 2018 through November 30, 2018 35,000 $ 3.00 EOG has sold call options which establish a ceiling price for the sale of notional volumes of natural gas as specified in the call option contracts. The call options require that EOG pay the difference between the call option strike price and either the average or last business day NYMEX Henry Hub natural gas price for the contract month (Henry Hub Index Price) in the event the Henry Hub Index Price is above the call option strike price. In addition, EOG has purchased put options which establish a floor price for the sale of notional volumes of natural gas as specified in the put option contracts. The put options grant EOG the right to receive the difference between the put option strike price and the Henry Hub Index Price in the event the Henry Hub Index Price is below the put option strike price. Presented below is a comprehensive summary of EOG's natural gas call and put option contracts for the six months ended June 30, 2017 , with notional volumes expressed in MMBtud and prices expressed in $/MMBtu. Natural Gas Option Contracts Call Options Sold Put Options Purchased Volume (MMBtud) Weighted Volume (MMBtud) Weighted 2017 March 1, 2017 through July 31, 2017 (closed) 213,750 $ 3.44 171,000 $ 2.92 August 1, 2017 through November 30, 2017 213,750 3.44 171,000 2.92 2018 March 1, 2018 through November 30, 2018 120,000 $ 3.38 96,000 $ 2.94 EOG has also entered into natural gas collar contracts, which establish ceiling and floor prices for the sale of notional volumes of natural gas as specified in the collar contracts. The collars require that EOG pay the difference between the ceiling price and the Henry Hub Index Price in the event the Henry Hub Index Price is above the ceiling price. The collars grant EOG the right to receive the difference between the floor price and the Henry Hub Index Price in the event the Henry Hub Index Price is below the floor price. Presented below is a comprehensive summary of EOG's natural gas collar contracts for the six months ended June 30, 2017 , with notional volumes expressed in MMBtud and prices expressed in $/MMBtu. Natural Gas Collar Contracts Weighted Average Price ($/MMBtu) Volume (MMBtud) Ceiling Price Floor Price 2017 March 1, 2017 through July 31, 2017 (closed) 80,000 $ 3.69 $ 3.20 August 1, 2017 through November 30, 2017 80,000 3.69 3.20 The following table sets forth the amounts and classification of EOG's outstanding financial derivative instruments at June 30, 2017 and December 31, 2016 . 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 millions): Fair Value at Description Location on Balance Sheet June 30, 2017 December 31, 2016 Asset Derivatives Crude oil and natural gas derivative contracts - Current portion Assets from Price Risk Management Activities $ 5 $ — Noncurrent portion Other Assets 3 1 Liability Derivatives Crude oil and natural gas derivative contracts - Current portion Liabilities from Price Risk Management Activities $ — $ 62 Credit Risk. Notional contract amounts are used to express the magnitude of a financial derivative. The amounts potentially subject to credit risk, in the event of nonperformance by the counterparties, are equal to the fair value of such contracts (see Note 11). EOG evaluates its exposure to significant counterparties on an ongoing basis, including those arising from physical and financial transactions. In some instances, EOG renegotiates payment terms and/or requires collateral, parent guarantees or letters of credit to minimize credit risk. All of EOG's derivative instruments are covered by International Swap Dealers Association Master Agreements (ISDAs) with counterparties. The ISDAs may contain provisions that require EOG, if it is the party in a net liability position, to post collateral when the amount of the net liability exceeds the threshold level specified for EOG's then-current credit ratings. In addition, the ISDAs may also provide that as a result of certain circumstances, including certain events that cause EOG's credit ratings to become materially weaker than its then-current ratings, the counterparty may require all outstanding derivatives under the ISDAs to be settled immediately. See Note 11 for the aggregate fair value of all derivative instruments that were in a net liability position at December 31, 2016 . EOG had no collateral posted and held no collateral at June 30, 2017 and December 31, 2016 .

Acquisitions and Divestitures (

Acquisitions and Divestitures (Notes)	6 Months Ended
	Jun. 30, 2017
Discontinued Operations and Disposal Groups [Abstract]
Acquisitions and Divestitures	Acquisitions and Divestitures Yates Entities. On October 4, 2016, EOG completed its previously announced mergers and related asset purchase transactions with Yates Petroleum Corporation (YPC), Abo Petroleum Corporation (ABO), MYCO Industries, Inc. (MYCO) and certain affiliated entities (collectively with YPC, ABO and MYCO, the Yates Entities). For a further discussion of these transactions, refer to Note 17 to the Consolidated Financial Statements in EOG's 2016 Annual Report. The assets of the Yates Entities include producing wells in addition to acreage in the Delaware Basin Core, the Powder River Basin, the Permian Basin Northwest Shelf and other Western basins. EOG accounted for the mergers with YPC, ABO and MYCO and the related asset purchase transactions as a business combination under the acquisition method with EOG as the acquirer. Under the acquisition method, the consideration transferred is allocated to the assets acquired and liabilities assumed based on their estimated fair values, with any excess of the consideration transferred over the estimated fair value of the identifiable net assets acquired recorded as goodwill. EOG did not record goodwill in connection with these transactions. There were no changes during the six months ended June 30, 2017 , to the preliminary purchase price allocation. Certain data necessary to complete the purchase price allocation is preliminary, and includes, but is not limited to, the final valuations of oil and gas properties, the valuation of off-market transportation contracts and the calculation of deferred taxes based upon the underlying tax basis of assets acquired and liabilities assumed. EOG believes the estimates used are reasonable but are subject to change as additional information becomes available. Other. During the six months ended June 30, 2017 , EOG recognized a net loss on asset dispositions of $26 million and received proceeds of approximately $175 million primarily from the sale of producing assets, unproved leasehold and other property, plant and equipment in Oklahoma and Texas. During the six months ended June 30, 2016 , EOG recognized a net loss on asset dispositions of $6 million and received proceeds of approximately $253 million primarily from sales of producing properties and acreage in the Permian Basin and Oklahoma.

Stock-Based Compensation (Table

Stock-Based Compensation (Tables)	6 Months Ended
	Jun. 30, 2017
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Schedule of Employee Service Share-based Compensation, Allocation of Recognized Period Costs	Stock-based compensation expense is included on the Condensed Consolidated Statements of Income (Loss) and Comprehensive Income (Loss) based upon the job function of the employees receiving the grants as follows (in millions): Three Months Ended Six Months Ended 2017 2016 2017 2016 Lease and Well $ 9.6 $ 8.9 $ 20.5 $ 19.3 Gathering and Processing Costs 0.2 0.3 0.4 0.6 Exploration Costs 5.3 5.0 11.5 11.5 General and Administrative 12.5 12.9 25.7 28.1 Total $ 27.6 $ 27.1 $ 58.1 $ 59.5
Weighted Average Fair Values and Valuation Assumptions	Weighted average fair values and valuation assumptions used to value stock option, SAR and ESPP grants during the six -month periods ended June 30, 2017 and 2016 are as follows: Stock Options/SARs ESPP Six Months Ended Six Months Ended 2017 2016 2017 2016 Weighted Average Fair Value of Grants $ 26.64 $ 21.04 $ 24.28 $ 17.56 Expected Volatility 30.46 % 35.90 % 30.33 % 36.79 % Risk-Free Interest Rate 1.39 % 0.93 % 0.65 % 0.49 % Dividend Yield 0.68 % 0.91 % 0.69 % 0.82 % Expected Life 5.3 years 5.3 years 0.5 years 0.5 years
Stock Options and SARs Transactions	The following table sets forth stock option and SAR transactions for the six -month periods ended June 30, 2017 and 2016 (stock options and SARs in thousands): Six Months Ended Six Months Ended Number of Stock Options/SARs Weighted Average Grant Price Number of Stock Options/SARs Weighted Average Grant Price Outstanding at January 1 9,850 $ 75.53 10,744 $ 67.98 Granted 16 96.41 11 71.51 Exercised (1) (783 ) 57.05 (790 ) 44.31 Forfeited (189 ) 89.40 (150 ) 85.91 Outstanding at June 30 (2) 8,894 $ 76.90 9,815 $ 69.61 Vested or Expected to Vest (3) 8,594 $ 76.53 9,490 $ 69.24 Exercisable at June 30 (4) 4,973 $ 68.43 5,638 $ 61.50 (1) The total intrinsic value of stock options/SARs exercised for the six months ended June 30, 2017 and 2016 was $33.5 million and $26.8 million , respectively. The intrinsic value is based upon the difference between the market price of EOG's common stock on the date of exercise and the grant price of the stock options/SARs. (2) The total intrinsic value of stock options/SARs outstanding at June 30, 2017 and 2016 was $147.8 million and $173.1 million , respectively. At June 30, 2017 and 2016 , the weighted average remaining contractual life was 3.6 years and 3.6 years , respectively. (3) The total intrinsic value of stock options/SARs vested or expected to vest at June 30, 2017 and 2016 was $145.7 million and $170.3 million , respectively. At June 30, 2017 and 2016 , the weighted average remaining contractual life was 3.5 years and 3.6 years , respectively. (4) The total intrinsic value of stock options/SARs exercisable at June 30, 2017 and 2016 was $120.9 million and $137.7 million , respectively. At June 30, 2017 and 2016 , the weighted average remaining contractual life was 2.2 years and 2.4 years , respectively.
Restricted Stock and Restricted Stock Unit Transactions	The following table sets forth restricted stock and restricted stock unit transactions for the six -month periods ended June 30, 2017 and 2016 (shares and units in thousands): Six Months Ended Six Months Ended Number of Shares and Units Weighted Average Grant Date Fair Value Number of Shares and Units Weighted Average Grant Date Fair Value Outstanding at January 1 3,962 $ 79.63 4,908 $ 70.35 Granted 437 98.97 306 75.56 Released (1) (407 ) 63.20 (798 ) 61.36 Forfeited (143 ) 83.92 (203 ) 76.97 Outstanding at June 30 (2) 3,849 $ 83.40 4,213 $ 72.11 (1) The total intrinsic value of restricted stock and restricted stock units released for the six months ended June 30, 2017 and 2016 was $40.4 million and $60.8 million , respectively. The intrinsic value is based upon the closing price of EOG's common stock on the date the restricted stock and restricted stock units are released. (2) The total intrinsic value of restricted stock and restricted stock units outstanding at June 30, 2017 and 2016 was $348.4 million and $351.5 million , respectively.

Net Income (Loss) Per Share (Ta

Net Income (Loss) Per Share (Tables)	6 Months Ended
	Jun. 30, 2017
Earnings Per Share [Abstract]
Computation of Net Income (Loss) Per Share	The following table sets forth the computation of Net Income (Loss) Per Share for the three -month and six -month periods ended June 30, 2017 and 2016 (in thousands, except per share data): Three Months Ended Six Months Ended 2017 2016 2017 2016 Numerator for Basic and Diluted Earnings Per Share - Net Income (Loss) $ 23,053 $ (292,558 ) $ 51,570 $ (764,334 ) Denominator for Basic Earnings Per Share - Weighted Average Shares 574,439 547,335 574,162 547,029 Potential Dilutive Common Shares - Stock Options/SARs 1,452 — 1,669 — Restricted Stock/Units and Performance Units/Stock 2,592 — 2,742 — Denominator for Diluted Earnings Per Share - Adjusted Diluted Weighted Average Shares 578,483 547,335 578,573 547,029 Net Income (Loss) Per Share Basic $ 0.04 $ (0.53 ) $ 0.09 $ (1.40 ) Diluted $ 0.04 $ (0.53 ) $ 0.09 $ (1.40 )

Supplemental Cash Flow Inform21

Supplemental Cash Flow Information (Tables)	6 Months Ended
	Jun. 30, 2017
Supplemental Cash Flow Information [Abstract]
Net Cash Paid For Interest and Income Taxes	Net cash paid for interest and income taxes was as follows for the six -month periods ended June 30, 2017 and 2016 (in thousands): Six Months Ended 2017 2016 Interest (1) $ 136,733 $ 118,120 Income Taxes, Net of Refunds Received $ 98,157 $ (10,997 ) (1) Net of capitalized interest of $14 million and $17 million for the six months ended June 30, 2017 and 2016 , respectively.

Segment Information (Tables)

Segment Information (Tables)	6 Months Ended
	Jun. 30, 2017
Segment Reporting [Abstract]
Selected Financial Information by Reportable Segment	Selected financial information by reportable segment is presented below for the three -month and six -month periods ended June 30, 2017 and 2016 (in thousands): Three Months Ended Six Months Ended 2017 2016 2017 2016 Net Operating Revenues and Other United States $ 2,530,885 $ 1,704,320 $ 5,050,734 $ 2,983,989 Trinidad 72,299 62,731 146,222 125,524 Other International (1) 9,288 8,689 26,081 20,576 Total $ 2,612,472 $ 1,775,740 $ 5,223,037 $ 3,130,089 Operating Income (Loss) United States $ 130,314 $ (280,593 ) $ 249,845 $ (905,577 ) Trinidad 32,360 17,054 48,773 25,932 Other International (1) (34,766 ) (24,634 ) (62,964 ) (46,669 ) Total 127,908 (288,173 ) 235,654 (926,314 ) Reconciling Items Other Income (Expense), Net 4,972 (20,996 ) 8,123 (25,433 ) Interest Expense, Net (70,413 ) (71,108 ) (141,928 ) (139,498 ) Income (Loss) Before Income Taxes $ 62,467 $ (380,277 ) $ 101,849 $ (1,091,245 ) (1) Other International primarily consists of EOG's United Kingdom, China, Canada and Argentina operations. The Argentina operations were sold in the third quarter of 2016.
Assets by Reportable Segment	Total assets by reportable segment are presented below at June 30, 2017 and December 31, 2016 (in thousands): At June 30, 2017 At December 31, 2016 Total Assets United States $ 27,676,982 $ 27,746,851 Trinidad 947,166 889,253 Other International (1) 639,469 663,097 Total $ 29,263,617 $ 29,299,201 (1) Other International primarily consists of EOG's United Kingdom, China, Canada and Argentina operations. The Argentina operations were sold in the third quarter of 2016.

Asset Retirement Obligations (T

Asset Retirement Obligations (Tables)	6 Months Ended
	Jun. 30, 2017
Asset Retirement Obligation [Abstract]
Asset Retirement Obligation Rollforward Analysis	The following table presents the reconciliation of the beginning and ending aggregate carrying amounts of short-term and long-term legal obligations associated with the retirement of property, plant and equipment for the six -month periods ended June 30, 2017 and 2016 (in thousands): Six Months Ended 2017 2016 Carrying Amount at Beginning of Period $ 912,926 $ 811,554 Liabilities Incurred 19,276 18,258 Liabilities Settled (1) (28,726 ) (18,043 ) Accretion 17,010 16,521 Revisions 3,646 (635 ) Foreign Currency Translations 3,808 (6,745 ) Carrying Amount at End of Period $ 927,940 $ 820,910 Current Portion $ 33,922 $ 8,349 Noncurrent Portion $ 894,018 $ 812,561 (1) Includes settlements related to asset sales.

Exploratory Well Costs (Tables)

Exploratory Well Costs (Tables)	6 Months Ended
	Jun. 30, 2017
Capitalized Exploratory Well Costs [Abstract]
Net Changes In Capitalized Exploratory Well Costs	EOG's net changes in capitalized exploratory well costs for the six -month period ended June 30, 2017 , are presented below (in thousands): Six Months Ended Balance at January 1 $ — Additions Pending the Determination of Proved Reserves 2,995 Reclassifications to Proved Properties — Costs Charged to Expense — Balance at June 30 $ 2,995

Fair Value Measurements (Tables

Fair Value Measurements (Tables)	6 Months Ended
	Jun. 30, 2017
Fair Value Disclosures [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 June 30, 2017 and December 31, 2016 (in millions): Fair Value Measurements Using: Quoted Prices in Active Markets (Level 1) Significant Other Observable Inputs (Level 2) Significant Unobservable Inputs (Level 3) Total At June 30, 2017 Financial Assets: Natural Gas Swaps $ — $ 1 $ — $ 1 Natural Gas Options/Collars — 7 — 7 At December 31, 2016 Financial Assets: Natural Gas Options/Collars $ — $ 1 $ — $ 1 Financial Liabilities: Crude Oil Swaps $ — $ 36 $ — $ 36 Natural Gas Swaps — 4 — 4 Natural Gas Options/Collars — 22 — 22

Risk Management Activities (Tab

Risk Management Activities (Tables)	6 Months Ended
	Jun. 30, 2017
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, 2017 and December 31, 2016 . 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 millions): Fair Value at Description Location on Balance Sheet June 30, 2017 December 31, 2016 Asset Derivatives Crude oil and natural gas derivative contracts - Current portion Assets from Price Risk Management Activities $ 5 $ — Noncurrent portion Other Assets 3 1 Liability Derivatives Crude oil and natural gas derivative contracts - Current portion Liabilities from Price Risk Management Activities $ — $ 62
Crude Oil [Member] | Basis Swaps [Member]
Derivatives, Fair Value [Line Items]
Schedule of Derivative Instruments	Presented below is a comprehensive summary of EOG's crude oil basis swap contracts for the six months ended June 30, 2017 . The weighted average price differential expressed in dollars per barrel ($/Bbl) represents the amount of reduction to Cushing, Oklahoma, prices for the notional volumes expressed in barrels per day (Bbld) covered by the basis swap contracts. Crude Oil Basis Swap Contracts Volume (Bbld) Weighted Average Price Differential ($/Bbl) 2018 January 1, 2018 through December 31, 2018 15,000 $ 1.063 2019 January 1, 2019 through December 31, 2019 20,000 $ 1.075
Crude Oil [Member] | Price Swaps [Member]
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, 2017, with notional volumes expressed in Bbld and prices expressed in $/Bbl. Crude Oil Price Swap Contracts Volume (Bbld) Weighted Average Price ($/Bbl) 2017 January 1, 2017 through February 28, 2017 (closed) 35,000 $ 50.04 March 1, 2017 through June 30, 2017 (closed) 30,000 50.05
Natural Gas [Member] | Price Swaps [Member]
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, 2017 , 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) 2017 March 1, 2017 through July 31, 2017 (closed) 30,000 $ 3.10 August 1, 2017 through November 30, 2017 30,000 3.10 2018 March 1, 2018 through November 30, 2018 35,000 $ 3.00
Natural Gas [Member] | Options [Member]
Derivatives, Fair Value [Line Items]
Schedule of Derivative Instruments	Presented below is a comprehensive summary of EOG's natural gas call and put option contracts for the six months ended June 30, 2017 , with notional volumes expressed in MMBtud and prices expressed in $/MMBtu. Natural Gas Option Contracts Call Options Sold Put Options Purchased Volume (MMBtud) Weighted Volume (MMBtud) Weighted 2017 March 1, 2017 through July 31, 2017 (closed) 213,750 $ 3.44 171,000 $ 2.92 August 1, 2017 through November 30, 2017 213,750 3.44 171,000 2.92 2018 March 1, 2018 through November 30, 2018 120,000 $ 3.38 96,000 $ 2.94
Natural Gas [Member] | Collars [Member]
Derivatives, Fair Value [Line Items]
Schedule of Derivative Instruments	Presented below is a comprehensive summary of EOG's natural gas collar contracts for the six months ended June 30, 2017 , with notional volumes expressed in MMBtud and prices expressed in $/MMBtu. Natural Gas Collar Contracts Weighted Average Price ($/MMBtu) Volume (MMBtud) Ceiling Price Floor Price 2017 March 1, 2017 through July 31, 2017 (closed) 80,000 $ 3.69 $ 3.20 August 1, 2017 through November 30, 2017 80,000 3.69 3.20

Summary of Significant Accounti

Summary of Significant Accounting Policies (Details) - USD ($) $ in Millions	6 Months Ended
	Jun. 30, 2017	Dec. 31, 2016
Accounting Policies [Abstract]
Effective Income Tax Rate Reconciliation Sharebased Compensation Excess Tax Deficiency Amount	$ 12
Deferred Tax Assets, Net, Current		$ 169

Stock-Based Compensation (Detai

Stock-Based Compensation (Details) - USD ($) $ / shares in Units, $ in Millions		3 Months Ended		6 Months Ended
		Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Stock Options/SARs and Employee Stock Purchase Plan (ESPP) Disclosures [Line Items]
Compensation expense related to the company's stock-based compensation plans		$ 27.6	$ 27.1	$ 58.1	$ 59.5
Stock-based compensation expense related to stock options, SAR and ESPP grants		$ 11.1	$ 13	$ 22.1	$ 26.2
Performance Units and Performance Stock Disclosures [Abstract]
Common Shares Available for Grant		20,900,000		20,900,000
Unrecognized compensation expense		$ 75.6		$ 75.6
Weighted average period over which unrecognized compensation expense will be recognized (in years)				2 years 3 months 18 days
Stock Options and SARs [Member]
Weighted Average Fair Values And Valuation Assumptions Used To Value Stock Option/SARs, ESPP, and Performance Units/Stock Stock-Based Compensation [Abstract]
Weighted Average Fair Value of Grants (price per share)				$ 26.64	$ 21.04
Expected Volatility (in hundredths)				30.46%	35.90%
Risk-Free Interest Rate (in hundredths)				1.39%	0.93%
Dividend Yield (in hundredths)				0.68%	0.91%
Expected Life (in years)				5 years 3 months 18 days	5 years 3 months 18 days
Stock Options and SARs Rollforward [Abstract]
Outstanding at January 1 (in shares)				9,850,000	10,744,000
Granted (in shares)				16,000	11,000
Exercised (1) (in shares)	[1]			(783,000)	(790,000)
Forfeited (in shares)				(189,000)	(150,000)
Outstanding at June 30 (2) (in shares)	[2]	8,894,000	9,815,000	8,894,000	9,815,000
Stock Options and SARs Vested or Expected to Vest (in shares)	[3]	8,594,000	9,490,000	8,594,000	9,490,000
Stock Options and SARs Exercisable at June 30 (in shares)	[4]	4,973,000	5,638,000	4,973,000	5,638,000
Intrinsic Value of Stock Options/SARs Exercised				$ 33.5	$ 26.8
Intrinsic Value of Stock Options/SARs Outstanding		$ 147.8	$ 173.1	$ 147.8	$ 173.1
Weighted Average Remaining Contractual Life for Stock Options/SARs Outstanding				3 years 7 months 6 days	3 years 7 months 6 days
Intrinsic Value of Stock Options/SARs Vested or Expected to Vest		145.7	170.3	$ 145.7	$ 170.3
Weighted average remaining contractual life for stock options/SARs vested or expected to vest (in years)al Term				3 years 6 months	3 years 7 months 6 days
Aggregate Intrinsic Value for Exercisable Units		$ 120.9	$ 137.7	$ 120.9	$ 137.7
Weighted average remaining contractual life for exercisable options/SARs (in years)				2 years 2 months 12 days	2 years 4 months 24 days
Weighted Average Grant Price Stock Option and SARs [Rollforward]
Outstanding at January 1 (price per share)				$ 75.53	$ 67.98
Granted (price per share)				96.41	71.51
Exercised (1) (price per share)	[1]			57.05	44.31
Forfeited (price per share)				89.40	85.91
Outstanding at June 30 (2) (price per share)	[2]	$ 76.90	$ 69.61	76.90	69.61
Vested or Expected to Vest (3) (price per share)	[3]	76.53	69.24	76.53	69.24
Exercisable at June 30 (4) (price per share)	[4]	$ 68.43	$ 61.50	68.43	61.50
ESPP [Member]
Weighted Average Fair Values And Valuation Assumptions Used To Value Stock Option/SARs, ESPP, and Performance Units/Stock Stock-Based Compensation [Abstract]
Weighted Average Fair Value of Grants (price per share)				$ 24.28	$ 17.56
Expected Volatility (in hundredths)				30.33%	36.79%
Risk-Free Interest Rate (in hundredths)				0.65%	0.49%
Dividend Yield (in hundredths)				0.69%	0.82%
Expected Life (in years)				6 months	6 months
Restricted Stock And Restricted Stock Units [Member]
Restricted Stock/Restricted Stock Units [Roll Forward]
Share-Based Compensation Arrangement By Restricted Stock And Restricted Stock Units Compensation Cost		$ 15.6	$ 13.7	$ 34.2	$ 32.4
Outstanding at January 1 (in shares)				3,962,000	4,908,000
Granted (in shares)				437,000	306,000
Released (1) (in shares)	[5]			(407,000)	(798,000)
Forfeited (in shares)				(143,000)	(203,000)
Outstanding at June 30 (2) (in shares)	[6]	3,849,000	4,213,000	3,849,000	4,213,000
Weighted Average Grant Price Restricted Stock and Restricted Stock Units [Roll Forward]
Outstanding at January 1 (price per share)				$ 79.63	$ 70.35
Granted (price per share)				98.97	75.56
Released (1) (price per share)	[5]			63.20	61.36
Forfeited (price per share)				83.92	76.97
Outstanding at June 30 (2) (price per share)	[6]	$ 83.40	$ 72.11	$ 83.40	$ 72.11
Performance Units and Performance Stock Disclosures [Abstract]
Intrinsic value released during the year				$ 40.4	$ 60.8
Aggregate intrinsic value of stock and units outstanding		$ 348.4	$ 351.5	348.4	351.5
Unrecognized compensation expense		151.1		$ 151.1
Weighted average period over which unrecognized compensation expense will be recognized (in years)				2 years 6 months
Performance Units and Performance Stock [Member]
Stock Options/SARs and Employee Stock Purchase Plan (ESPP) Disclosures [Line Items]
Compensation expense related to the company's stock-based compensation plans		$ 0.9	0.4	$ 1.8	0.9
Restricted Stock/Restricted Stock Units [Roll Forward]
Outstanding at January 1 (in shares)				545,290
Granted (in shares)				118,834
Released (1) (in shares)				(89,224)
Outstanding at June 30 (2) (in shares)		574,900		574,900
Performance Units and Performance Stock Disclosures [Abstract]
Performance Period for Performance Units and Shares				3 years
Minimum Performance Units and Stock Allowed to be Outstanding				299,540
Minimum Performance Multiple at the Completion of the Performance Period				0.00%
Maximum Performance Multiple at the Completion of the Performance Period				200.00%
Maximum Vest Period from the Date of Grant				5 years
Maximum Performance Units and Stock Allowed to be Outstanding				850,260
Intrinsic value released during the year				$ 9
Aggregate intrinsic value of stock and units outstanding		$ 52		52
Unrecognized compensation expense		8.6		$ 8.6
Weighted average period over which unrecognized compensation expense will be recognized (in years)				2 years 6 months
Lease And Well [Member]
Stock Options/SARs and Employee Stock Purchase Plan (ESPP) Disclosures [Line Items]
Compensation expense related to the company's stock-based compensation plans		9.6	8.9	$ 20.5	19.3
Gathering And Processing Costs [Member]
Stock Options/SARs and Employee Stock Purchase Plan (ESPP) Disclosures [Line Items]
Compensation expense related to the company's stock-based compensation plans		0.2	0.3	0.4	0.6
Exploration Costs [Member]
Stock Options/SARs and Employee Stock Purchase Plan (ESPP) Disclosures [Line Items]
Compensation expense related to the company's stock-based compensation plans		5.3	5	11.5	11.5
General And Administrative [Member]
Stock Options/SARs and Employee Stock Purchase Plan (ESPP) Disclosures [Line Items]
Compensation expense related to the company's stock-based compensation plans		$ 12.5	$ 12.9	$ 25.7	$ 28.1
[1]	The total intrinsic value of stock options/SARs exercised for the six months ended June 30, 2017 and 2016 was $33.5 million and $26.8 million, respectively. The intrinsic value is based upon the difference between the market price of EOG's common stock on the date of exercise and the grant price of the stock options/SARs.
[2]	The total intrinsic value of stock options/SARs outstanding at June 30, 2017 and 2016 was $147.8 million and $173.1 million, respectively. At June 30, 2017 and 2016, the weighted average remaining contractual life was 3.6 years and 3.6 years, respectively.
[3]	The total intrinsic value of stock options/SARs vested or expected to vest at June 30, 2017 and 2016 was $145.7 million and $170.3 million, respectively. At June 30, 2017 and 2016, the weighted average remaining contractual life was 3.5 years and 3.6 years, respectively.
[4]	The total intrinsic value of stock options/SARs exercisable at June 30, 2017 and 2016 was $120.9 million and $137.7 million, respectively. At June 30, 2017 and 2016, the weighted average remaining contractual life was 2.2 years and 2.4 years, respectively.
[5]	The total intrinsic value of restricted stock and restricted stock units released for the six months ended June 30, 2017 and 2016 was $40.4 million and $60.8 million, respectively. The intrinsic value is based upon the closing price of EOG's common stock on the date the restricted stock and restricted stock units are released.
[6]	The total intrinsic value of restricted stock and restricted stock units outstanding at June 30, 2017 and 2016 was $348.4 million and $351.5 million, respectively.

Net Income (Loss) Per Share (De

Net Income (Loss) Per Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Numerator for Basic and Diluted Earnings Per Share - [Abstract]
Net Income (Loss)	$ 23,053	$ (292,558)	$ 51,570	$ (764,334)
Denominator for Basic Earnings Per Share - [Abstract]
Weighted Average Shares	574,439	547,335	574,162	547,029
Denominator for Diluted Earnings Per Share - [Abstract]
Adjusted Diluted Weighted Average Shares	578,483	547,335	578,573	547,029
Net Income (Loss) Per Share [Abstract]
Basic	$ 0.04	$ (0.53)	$ 0.09	$ (1.40)
Diluted	$ 0.04	$ (0.53)	$ 0.09	$ (1.40)
Stock Options And SARs [Member]
Potential Dilutive Common Shares - [Abstract]
Common Shares Attributable to Dilutive Effect of Share-Based Payment Arrangments	1,452	0	1,669	0
Antidilutive Securities Excluded from Computation of Earnings Per Share [Abstract]
Anti-dilutive Securities excluded from Diluted Earnings Per Share Calculation	3,400	10,200	2,000	10,400
Restricted Stock/Units and Performance Units/Stock [Member]
Potential Dilutive Common Shares - [Abstract]
Common Shares Attributable to Dilutive Effect of Share-Based Payment Arrangments	2,592	0	2,742	0
Antidilutive Securities Excluded from Computation of Earnings Per Share [Abstract]
Anti-dilutive Securities excluded from Diluted Earnings Per Share Calculation		4,600		4,600

Supplemental Cash Flow Inform30

Supplemental Cash Flow Information (Details) - USD ($) $ in Thousands		6 Months Ended
		Jun. 30, 2017	Jun. 30, 2016
Supplemental Cash Flow Information [Abstract]
Interest (1)	[1]	$ 136,733	$ 118,120
Income Taxes, Net of Refunds Received		98,157	(10,997)
Interest Costs Capitalized		14,000	17,000
Accrued Capital Expenditures		488,000	$ 371,000
Non-Cash Property Exchanges		$ 154,000
[1]	Net of capitalized interest of $14 million and $17 million for the six months ended June 30, 2017 and 2016, respectively.

Segment Information (Details)

Segment Information (Details) - USD ($) $ in Thousands		3 Months Ended		6 Months Ended
		Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016	Dec. 31, 2016
Schedule of Segment Reporting Information By Segment [Abstract]
Net Operating Revenues and Other		$ 2,612,472	$ 1,775,740	$ 5,223,037	$ 3,130,089
Income (Loss) Before Income Taxes		62,467	(380,277)	101,849	(1,091,245)
Total Assets		29,263,617		29,263,617		$ 29,299,201
Operating (Loss) Income		127,908	(288,173)	235,654	(926,314)
Other Income (Expense), Net		4,972	(20,996)	8,123	(25,433)
Interest Expense, Net		70,413	71,108	141,928	139,498
United States [Member]
Schedule of Segment Reporting Information By Segment [Abstract]
Net Operating Revenues and Other		2,530,885	1,704,320	5,050,734	2,983,989
Total Assets		27,676,982		27,676,982		27,746,851
Operating (Loss) Income		130,314	(280,593)	249,845	(905,577)
Trinidad [Member]
Schedule of Segment Reporting Information By Segment [Abstract]
Net Operating Revenues and Other		72,299	62,731	146,222	125,524
Total Assets		947,166		947,166		889,253
Operating (Loss) Income		32,360	17,054	48,773	25,932
Other International [Member]
Schedule of Segment Reporting Information By Segment [Abstract]
Net Operating Revenues and Other	[1]	9,288	8,689	26,081	20,576
Total Assets	[1]	639,469		639,469		$ 663,097
Operating (Loss) Income	[1]	$ (34,766)	$ (24,634)	$ (62,964)	$ (46,669)
[1]	Other International primarily consists of EOG's United Kingdom, China, Canada and Argentina operations. The Argentina operations were sold in the third quarter of 2016.

Asset Retirement Obligations (D

Asset Retirement Obligations (Details) - USD ($) $ in Thousands		6 Months Ended
		Jun. 30, 2017	Jun. 30, 2016
Asset Retirement Obligation [Abstract]
Carrying Amount at Beginning of Period		$ 912,926	$ 811,554
Liabilities Incurred		19,276	18,258
Liabilities Settled (1)	[1]	(28,726)	(18,043)
Accretion		17,010	16,521
Revisions		3,646	(635)
Foreign Currency Translations		3,808	(6,745)
Carrying Amount at End of Period		927,940	820,910
Current Portion		33,922	8,349
Noncurrent Portion		$ 894,018	$ 812,561
[1]	Includes settlements related to asset sales.

Exploratory Well Costs (Details

Exploratory Well Costs (Details) $ in Thousands	6 Months Ended
	Jun. 30, 2017USD ($)
Capitalized Exploratory Well Costs that are Pending Determination of Proved Reserves [Roll Forward]
Balance at January 1	$ 0
Additions Pending the Determination of Proved Reserves	2,995
Reclassifications to Proved Properties	0
Costs Charged to Expense	0
Balance at June 30	$ 2,995

Pension and Postretirement Be34

Pension and Postretirement Benefits (Details) - USD ($) $ in Millions	6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016
Defined Benefit and Defined Contribution Plan Disclosure [Line Items]
Total Pension Plans Costs	$ 18.4	$ 17.2

Long-Term Debt (Details)

Long-Term Debt (Details) - USD ($)	3 Months Ended	6 Months Ended
	Mar. 31, 2017	Jun. 30, 2016	Jun. 30, 2017
Uncommitted Credit Facility [Member]
Line of Credit Facility [Line Items]
Borrowings Outstanding			$ 0
Commercial Paper [Member]
Line of Credit Facility [Line Items]
Average Outstanding Amount		$ 210,000,000
Weighted average interest rate (in hundredths)		0.76%
Borrowings Outstanding			0
Revolving Credit Agreement 2020 [Member]
Line of Credit Facility [Line Items]
Letter of Credit Facility Current Maximum Capacity			2,000,000,000
Line of Credit Facility, Expiration Date	Jul. 21, 2020
Borrowings Outstanding			$ 0
Eurodollar [Member]
Line of Credit Facility [Line Items]
Debt Instrument, Interest Rate, Effective Percentage			2.22%
Base Rate [Member]
Line of Credit Facility [Line Items]
Debt Instrument, Interest Rate, Effective Percentage			4.25%
5.875 % Senior Notes Due 2017 [Member]
Debt Instrument [Abstract]
Debt Instrument Issuance Face Amount			$ 600,000,000
Debt Instrument Issuance Interest Rate			5.875%

Fair Value Measurements (Detail

Fair Value Measurements (Details) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2017	Dec. 31, 2016
Proved Oil and Gas Properties, Other Property, Plant and Equipment and Other Assets [Abstract]
Proved Oil and Gas Properties, Other Property, Plant and Equipment and Other Assets Carrying Amount	$ 253,000
Proved Oil and Gas Properties, Other Property, Plant and Equipment and Other Assets Written Down During the Period - Fair value at End of Period	92,000
Pretax Impairment Charges for Proved Oil and Gas Properties, Other Property, Plant and Equipment and Other Assets	161,000
Pretax Impairment Charges for Proved Oil and Gas Properties and Other Assets, in which EOG utilized an accepted offer from a third-party purchaser	138,000
Pretax Impairment Charge for a Commodity Price-Related Write-Down of Other Assets	23,000
Debt Disclosure [Abstract]
Estimated Fair Value of Debt	7,181,000	$ 7,190,000
Aggregate Principal Amount of Current and Long-Term Debt	6,990,000	6,990,000
Commodity Contract [Member] | Crude Oil [Member] | Price Swaps [Member]
Financial Assets: [Abstract]
Financial and Nonfinancial Liabilities, Fair Value Disclosure		36
Commodity Contract [Member] | Crude Oil [Member] | Price Swaps [Member] | Fair Value, Inputs, Level 1 [Member]
Financial Assets: [Abstract]
Financial and Nonfinancial Liabilities, Fair Value Disclosure		0
Commodity Contract [Member] | Crude Oil [Member] | Price Swaps [Member] | Fair Value, Inputs, Level 2 [Member]
Financial Assets: [Abstract]
Financial and Nonfinancial Liabilities, Fair Value Disclosure		36
Commodity Contract [Member] | Crude Oil [Member] | Price Swaps [Member] | Fair Value, Inputs, Level 3 [Member]
Financial Assets: [Abstract]
Financial and Nonfinancial Liabilities, Fair Value Disclosure		0
Commodity Contract [Member] | Natural Gas [Member] | Price Swaps [Member]
Financial Assets: [Abstract]
Assets, Fair Value Disclosure	1
Financial and Nonfinancial Liabilities, Fair Value Disclosure		4
Commodity Contract [Member] | Natural Gas [Member] | Price Swaps [Member] | Fair Value, Inputs, Level 1 [Member]
Financial Assets: [Abstract]
Assets, Fair Value Disclosure	0
Financial and Nonfinancial Liabilities, Fair Value Disclosure		0
Commodity Contract [Member] | Natural Gas [Member] | Price Swaps [Member] | Fair Value, Inputs, Level 2 [Member]
Financial Assets: [Abstract]
Assets, Fair Value Disclosure	1
Financial and Nonfinancial Liabilities, Fair Value Disclosure		4
Commodity Contract [Member] | Natural Gas [Member] | Price Swaps [Member] | Fair Value, Inputs, Level 3 [Member]
Financial Assets: [Abstract]
Assets, Fair Value Disclosure	0
Financial and Nonfinancial Liabilities, Fair Value Disclosure		0
Commodity Contract [Member] | Natural Gas [Member] | Commodity Option [Member]
Financial Assets: [Abstract]
Assets, Fair Value Disclosure	7	1
Financial and Nonfinancial Liabilities, Fair Value Disclosure		22
Commodity Contract [Member] | Natural Gas [Member] | Commodity Option [Member] | Fair Value, Inputs, Level 1 [Member]
Financial Assets: [Abstract]
Assets, Fair Value Disclosure	0	0
Financial and Nonfinancial Liabilities, Fair Value Disclosure		0
Commodity Contract [Member] | Natural Gas [Member] | Commodity Option [Member] | Fair Value, Inputs, Level 2 [Member]
Financial Assets: [Abstract]
Assets, Fair Value Disclosure	7	1
Financial and Nonfinancial Liabilities, Fair Value Disclosure		22
Commodity Contract [Member] | Natural Gas [Member] | Commodity Option [Member] | Fair Value, Inputs, Level 3 [Member]
Financial Assets: [Abstract]
Assets, Fair Value Disclosure	$ 0	0
Financial and Nonfinancial Liabilities, Fair Value Disclosure		$ 0

Risk Management Activities (Det

Risk Management Activities (Details)	6 Months Ended
	Jun. 30, 2017USD ($)MMBTU$ / bbl$ / MMBTUbbl	Dec. 31, 2016USD ($)
Derivatives, Fair Value [Line Items]
Assets from Price Risk Management Activities | $	$ 4,746,000	$ 0
Liabilities from Price Risk Management Activities | $	0	61,817,000
Derivative Collateral [Abstract]
Collateral Held on Derivative | $	0	0
Collateral Had on Derivative | $	0	0
Assets [Member] | Price Risk Derivative [Member]
Derivatives, Fair Value [Line Items]
Assets from Price Risk Management Activities | $	5,000,000	0
Other Assets [Member]
Derivatives, Fair Value [Line Items]
Other Assets | $	3,000,000	1,000,000
Liability [Member] | Price Risk Derivative [Member]
Derivatives, Fair Value [Line Items]
Liabilities from Price Risk Management Activities | $	$ 0	$ 62,000,000
Crude Oil [Member] | Basis Swaps [Member] | Derivative Contracts Year Two - January through December [Member]
Derivatives, Fair Value [Line Items]
Volume (Bbld) | bbl	15,000
Derivative, Swap Type, Average Fixed Price | $ / bbl	1.063
Crude Oil [Member] | Basis Swaps [Member] | Derivative Contracts Year Three January - December [Member]
Derivatives, Fair Value [Line Items]
Volume (Bbld) | bbl	20,000
Derivative, Swap Type, Average Fixed Price | $ / bbl	1.075
Crude Oil [Member] | Price Swaps [Member] | Remaining Derivative Contracts - March through June [Member]
Derivatives, Fair Value [Line Items]
Derivative, Cash Received on Hedge | $	$ 700,000
Volume (Bbld) | bbl	5,000
Derivative, Swap Type, Average Fixed Price | $ / bbl	50
Crude Oil [Member] | Price Swaps [Member] | Derivative Contracts - January through February (closed) [Member]
Derivatives, Fair Value [Line Items]
Volume (Bbld) | bbl	35,000
Derivative, Swap Type, Average Fixed Price | $ / bbl	50.04
Crude Oil [Member] | Price Swaps [Member] | Crude Oil Derivative Contracts - March through June (closed) [Member]
Derivatives, Fair Value [Line Items]
Derivative, Cash Received for Early Termination on Hedge | $	$ 4,600,000
Volume (Bbld) | bbl	30,000
Derivative, Swap Type, Average Fixed Price | $ / bbl	50.05
Crude Oil [Member] | Price Swaps [Member] | Crude Oil Price Swap Contracts - March through June (closed) [Member]
Derivatives, Fair Value [Line Items]
Volume (Bbld) | bbl	5,000
Derivative, Swap Type, Average Fixed Price | $ / bbl	48.81
Natural Gas [Member] | Price Swaps [Member] | Derivative Contracts - March through July (closed) [Member]
Derivatives, Fair Value [Line Items]
Volume (MMBtud) | MMBTU	30,000
Derivative, Swap Type, Average Fixed Price	3.10
Natural Gas [Member] | Price Swaps [Member] | Derivative Contracts - August through November [Member]
Derivatives, Fair Value [Line Items]
Volume (MMBtud) | MMBTU	30,000
Derivative, Swap Type, Average Fixed Price	3.10
Natural Gas [Member] | Price Swaps [Member] | Derivative Contracts Year Two - March through November [Member]
Derivatives, Fair Value [Line Items]
Volume (MMBtud) | MMBTU	35,000
Derivative, Swap Type, Average Fixed Price	3
Natural Gas [Member] | Call Option [Member] | Derivative Contracts - March through July (closed) [Member]
Derivatives, Fair Value [Line Items]
Volume (MMBtud) | MMBTU	213,750
Derivative, Average Price Risk Option Strike Price	3.44
Natural Gas [Member] | Call Option [Member] | Derivative Contracts - August through November [Member]
Derivatives, Fair Value [Line Items]
Volume (MMBtud) | MMBTU	213,750
Derivative, Average Price Risk Option Strike Price	3.44
Natural Gas [Member] | Call Option [Member] | Derivative Contracts Year Two - March through November [Member]
Derivatives, Fair Value [Line Items]
Volume (MMBtud) | MMBTU	120,000
Derivative, Average Price Risk Option Strike Price	3.38
Natural Gas [Member] | Put Option [Member] | Derivative Contracts - March through July (closed) [Member]
Derivatives, Fair Value [Line Items]
Volume (MMBtud) | MMBTU	171,000
Derivative, Average Price Risk Option Strike Price	2.92
Natural Gas [Member] | Put Option [Member] | Derivative Contracts - August through November [Member]
Derivatives, Fair Value [Line Items]
Volume (MMBtud) | MMBTU	171,000
Derivative, Average Price Risk Option Strike Price	2.92
Natural Gas [Member] | Put Option [Member] | Derivative Contracts Year Two - March through November [Member]
Derivatives, Fair Value [Line Items]
Volume (MMBtud) | MMBTU	96,000
Derivative, Average Price Risk Option Strike Price	2.94
Natural Gas [Member] | Collars [Member] | Derivative Contracts - March through July (closed) [Member]
Derivatives, Fair Value [Line Items]
Volume (MMBtud) | MMBTU	80,000
Derivative, Average Cap Price	3.69
Derivative, Average Floor Price	3.20
Natural Gas [Member] | Collars [Member] | Derivative Contracts - August through November [Member]
Derivatives, Fair Value [Line Items]
Volume (MMBtud) | MMBTU	80,000
Derivative, Average Cap Price	3.69
Derivative, Average Floor Price	3.20

Acquisitions and Divestitures38

Acquisitions and Divestitures (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Discontinued Operations and Disposal Groups [Abstract]
Losses on Asset Dispositions, Net	$ (8,916)	$ (15,550)	$ (25,674)	$ (6,403)
Proceeds from Sale of Oil and Gas Property and Equipment			$ 175,260	$ 252,529