EOG Resources (EOG) 10-Q 3 Nov 16 2016 Q3 Quarterly report Financial data

Document and Entity Information

Document and Entity Information - shares	9 Months Ended
	Sep. 30, 2016	Oct. 26, 2016
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		576,457,693
Document Fiscal Year Focus	2,016
Document Fiscal Period Focus	Q3
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Sep. 30, 2016

Consolidated Statements of Inco

Consolidated Statements of Income and Comprehensive Income - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Net Operating Revenues
Crude Oil and Condensate	$ 1,137,717	$ 1,181,092	$ 2,951,118	$ 3,894,092
Natural Gas Liquids	112,439	95,217	299,401	311,137
Natural Gas	205,293	281,837	526,779	843,657
Gains (Losses) on Mark-to-Market Commodity Derivative Contracts	5,117	29,239	(33,821)	56,954
Gathering, Processing and Marketing	532,456	572,217	1,351,665	1,820,843
Gains (Losses) on Asset Dispositions, Net	108,204	(1,185)	101,801	(5,142)
Other, Net	17,278	14,011	51,650	39,126
Total	2,118,504	2,172,428	5,248,593	6,960,667
Operating Expenses
Lease and Well	226,348	283,221	685,606	934,366
Transportation Costs	200,862	203,594	570,787	641,739
Gathering and Processing Costs	32,635	35,497	90,385	106,503
Exploration Costs	25,455	31,344	85,843	114,548
Dry Hole Costs	10,390	198	10,464	14,317
Impairments	177,990	6,307,420	322,321	6,445,375
Marketing Costs	552,487	615,303	1,373,387	1,924,134
Depreciation, Depletion and Amortization	899,511	722,172	2,690,893	2,544,187
General and Administrative	94,397	90,959	292,633	257,580
Taxes Other Than Income	91,909	105,677	246,068	334,244
Total	2,311,984	8,395,385	6,368,387	13,316,993
Operating Loss	(193,480)	(6,222,957)	(1,119,794)	(6,356,326)
Other (Expense) Income, Net	(7,912)	8,607	(33,345)	7,996
Loss Before Interest Expense and Income Taxes	(201,392)	(6,214,350)	(1,153,139)	(6,348,330)
Interest Expense
Interest Expense, Net	70,858	60,571	210,356	174,400
Loss Before Income Taxes	(272,250)	(6,274,921)	(1,363,495)	(6,522,730)
Income Tax Benefit	(82,250)	(2,199,182)	(409,161)	(2,282,511)
Net Loss	$ (190,000)	$ (4,075,739)	$ (954,334)	$ (4,240,219)
Net Loss Per Share
Basic	$ (0.35)	$ (7.47)	$ (1.74)	$ (7.77)
Diluted	(0.35)	(7.47)	(1.74)	(7.77)
Dividends Declared per Common Share	$ 0.1675	$ 0.1675	$ 0.5025	$ 0.5025
Average Number of Common Shares
Basic	547,838	545,920	547,295	545,466
Diluted	547,838	545,920	547,295	545,466
Comprehensive Income (Loss)
Net Loss	$ (190,000)	$ (4,075,739)	$ (954,334)	$ (4,240,219)
Other Comprehensive Income (Loss)
Foreign Currency Translation Adjustments	141	(7,004)	8,170	(11,767)
Other	23	28	68	(156)
Other Comprehensive Income (Loss)	164	(6,976)	8,238	(11,923)
Comprehensive Loss	$ (189,836)	$ (4,082,715)	$ (946,096)	$ (4,252,142)

Consolidated Balance Sheets

Consolidated Balance Sheets - USD ($) $ in Thousands	Sep. 30, 2016	Dec. 31, 2015
Current Assets
Cash and Cash Equivalents	$ 1,048,727	$ 718,506
Accounts Receivable, Net	920,189	930,610
Inventories	429,667	598,935
Assets from Price Risk Management Activities	2,185	0
Income Taxes Receivable	178	40,704
Deferred Income Taxes	137,098	147,812
Other	199,720	155,677
Total	2,737,764	2,592,244
Property, Plant and Equipment
Oil and Gas Properties (Successful Efforts Method)	50,465,979	50,613,241
Other Property, Plant and Equipment	4,013,602	3,986,610
Total Property, Plant and Equipment	54,479,581	54,599,851
Less: Accumulated Depreciation, Depletion and Amortization	(31,835,196)	(30,389,130)
Total Property, Plant and Equipment, Net	22,644,385	24,210,721
Other Assets	172,772	167,505
Total Assets	25,554,921	26,970,470
Current Liabilities
Accounts Payable	1,296,240	1,471,953
Accrued Taxes Payable	143,257	93,618
Dividends Payable	91,842	91,546
Short-Term Borrowings and Current Portion of Long-Term Debt	6,579	6,579
Other	195,045	155,591
Total	1,732,963	1,819,287
Long-Term Debt	6,979,538	6,648,911
Other Liabilities	975,763	971,335
Deferred Income Taxes	4,068,345	4,587,902
Commitments and Contingencies (Note 8)
Stockholders' Equity
Common Stock, $0.01 Par, 640,000,000 Shares Authorized and 551,425,785 Shares Issued at September 30, 2016 and 550,150,823 Shares Issued at December 31, 2015	205,514	205,502
Additional Paid in Capital	2,992,887	2,923,461
Accumulated Other Comprehensive Loss	(25,100)	(33,338)
Retained Earnings	8,641,704	9,870,816
Common Stock Held in Treasury, 197,181 Shares at September 30, 2016 and 292,179 Shares at December 31, 2015	(16,693)	(23,406)
Total Stockholders' Equity	11,798,312	12,943,035
Total Liabilities and Stockholders' Equity	$ 25,554,921	$ 26,970,470

Consolidated Balance Sheets (Pa

Consolidated Balance Sheets (Parenthetical) - $ / shares	Sep. 30, 2016	Dec. 31, 2015
Common Stock
Common Stock, Par Value (in dollars per share)	$ 0.01	$ 0.01
Common Stock, Shares Authorized (in shares)	640,000,000	640,000,000
Common Stock, Shares Issued (in shares)	551,425,785	550,150,823
Treasury Stock (in shares)
Common Stock Held in Treasury, Shares	197,181	292,179

Consolidated Statements of Cash

Consolidated Statements of Cash Flows - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015
Cash Flows from Operating Activities
Net Loss	$ (954,334)	$ (4,240,219)
Items Not Requiring (Providing) Cash
Depreciation, Depletion and Amortization	2,690,893	2,544,187
Impairments	322,321	6,445,375
Stock-Based Compensation Expenses	97,072	101,926
Deferred Income Taxes	(492,489)	(2,377,030)
(Gains) Losses on Asset Dispositions, Net	(101,801)	5,142
Other, Net	42,149	3,735
Dry Hole Costs	10,464	14,317
Mark-to-Market Commodity Derivative Contracts
Total Losses (Gains)	33,821	(56,954)
Net Cash (Payments for) Received from Settlements of Commodity Derivative Contracts	(22,219)	661,021
Excess Tax Benefits from Stock-Based Compensation	(22,071)	(24,219)
Other, Net	7,513	8,904
Changes in Components of Working Capital and Other Assets and Liabilities
Accounts Receivable	(11,860)	448,311
Inventories	137,563	27,007
Accounts Payable	(201,213)	(1,310,211)
Accrued Taxes Payable	113,996	77,575
Other Assets	(12,526)	146,965
Other Liabilities	36,799	(15,683)
Changes in Components of Working Capital Associated with Investing and Financing Activities	(119,760)	519,203
Net Cash Provided by Operating Activities	1,554,318	2,979,352
Investing Cash Flows
Additions to Oil and Gas Properties	(1,781,547)	(3,918,065)
Additions to Other Property, Plant and Equipment	(60,343)	(252,295)
Proceeds from Sales of Assets	457,665	144,285
Changes in Components of Working Capital Associated with Investing Activities	120,614	(519,323)
Net Cash Used in Investing Activities	(1,263,611)	(4,545,398)
Financing Cash Flows
Net Commercial Paper (Repayments) Borrowings	(259,718)	29,700
Long-Term Debt Borrowings	991,097	990,225
Long-Term Debt Repayments	(400,000)	(500,000)
Dividends Paid	(276,726)	(274,577)
Excess Tax Benefits from Stock-Based Compensation	22,071	24,219
Treasury Stock Purchased	(55,641)	(43,419)
Proceeds from Stock Options Exercised and Employee Stock Purchase Plan	14,283	14,967
Debt Issuance Costs	(1,602)	(5,933)
Repayment of Capital Lease Obligation	(4,746)	(4,599)
Other, Net	(854)	120
Net Cash Provided by Financing Activities	28,164	230,703
Effect of Exchange Rate Changes on Cash	11,350	(9,181)
Increase (Decrease) in Cash and Cash Equivalents	330,221	(1,344,524)
Cash and Cash Equivalents at Beginning of Period	718,506	2,087,213
Cash and Cash Equivalents at End of Period	$ 1,048,727	$ 742,689

Summary of Significant Accounti

Summary of Significant Accounting Policies	9 Months Ended
	Sep. 30, 2016
Accounting Policies [Abstract]
Summary of Significant Accounting Policies [Text Block]	Summary of Significant Accounting Policies General. The 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 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, 2015 , filed on February 25, 2016 (EOG's 2015 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 nine months ended September 30, 2016 , are not necessarily indicative of the results to be expected for the full year. Effective January 1, 2016, EOG adopted the provisions of Accounting Standards Update (ASU) 2015-03, "Interest - Computation of Interest (Subtopic 835-30): Simplifying the Presentation of Debt Issuance Costs” (ASU 2015-03). ASU 2015-03 requires that debt issuance costs be presented in the balance sheet as a direct reduction from the related debt liability rather than as an asset. In connection with the adoption of ASU 2015-03, EOG restated its December 31, 2015 Consolidated Balance Sheet to reclassify $ 4.8 million of unamortized debt issuance costs from "Other Assets" to "Long-Term Debt." Debt issuance costs related to EOG's senior unsecured credit facility remain classified as "Other Assets." Recently Issued Accounting Standards. In August 2016, the Financial Accounting Standards Board (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. 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 March 2016, the FASB issued 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. ASU 2016-09 is effective for interim and annual periods beginning after December 15, 2016, and early application is permitted. EOG is evaluating ASU 2016-09 in order to determine what impact the new standard will have 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 application 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 November 2015, the FASB issued 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. ASU 2015-17 is effective for financial statements issued for interim and annual periods beginning after December 15, 2016, and early application is permitted. EOG does not intend to early-adopt ASU 2015-17 and does not expect the new standard to have a material impact on its consolidated financial statements and related disclosures. In July 2015, the FASB issued ASU 2015-11, "Accounting for Inventory" (ASU 2015-11), which requires entities to measure most inventory at lower of cost or net realizable value. ASU 2015-11 defines net realizable value as "the estimated selling prices in the ordinary course of business, less reasonably predictable cost of completion, disposal and transportation." ASU 2015-11 is effective prospectively for interim and annual periods beginning after December 15, 2016, and early application is permitted. EOG is reviewing the requirements of the new standard and does not believe that the adoption of ASU 2015-11 will have a material impact on its consolidated financial statements and related disclosures. In May 2014, the FASB issued ASU 2014-09, "Revenue From Contracts With Customers" (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 Accounting Standards Codification, including guidance related to the use of the "entitlements" method of revenue recognition used by EOG. EOG does not intend to early-adopt ASU 2014-09 and has not determined which transition method it will use. EOG continues to analyze ASU 2014-09, as well as subsequent guidance which amends and clarifies certain aspects of ASU 2014-09, in order to determine what impact it will have on EOG's consolidated financial statements and related disclosures.

Stock-Based Compensation

Stock-Based Compensation	9 Months Ended
	Sep. 30, 2016
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Stock-Based Compensation [Text Block]	Stock-Based Compensation As more fully discussed in Note 7 to the Consolidated Financial Statements included in EOG's 2015 Annual Report, EOG maintains various stock-based compensation plans. Stock-based compensation expense is included on the Consolidated Statements of Income and Comprehensive Income based upon the job function of the employees receiving the grants as follows (in millions): Three Months Ended Nine Months Ended 2016 2015 2016 2015 Lease and Well $ 8.9 $ 10.3 $ 28.2 $ 32.9 Gathering and Processing Costs 0.4 0.4 1.0 1.0 Exploration Costs 4.1 6.0 15.6 19.3 General and Administrative 24.2 23.6 52.3 48.8 Total $ 37.6 $ 40.3 $ 97.1 $ 102.0 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 September 30, 2016 , approximately 21.4 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 $18.8 million and $20.0 million during the three months ended September 30, 2016 and 2015 , respectively, and $45.0 million and $43.3 million during the nine months ended September 30, 2016 and 2015 , respectively. Weighted average fair values and valuation assumptions used to value stock option, SAR and ESPP grants during the nine -month periods ended September 30, 2016 and 2015 are as follows: Stock Options/SARs ESPP Nine Months Ended Nine Months Ended 2016 2015 2016 2015 Weighted Average Fair Value of Grants $ 25.77 $ 21.87 $ 19.28 $ 21.40 Expected Volatility 31.52 % 38.04 % 36.54 % 32.54 % Risk-Free Interest Rate 0.78 % 0.83 % 0.43 % 0.12 % Dividend Yield 0.76 % 0.85 % 0.82 % 0.72 % Expected Life 5.4 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 nine -month periods ended September 30, 2016 and 2015 (stock options and SARs in thousands): Nine Months Ended Nine Months Ended Number of Stock Options/SARs Weighted Average Grant Price Number of Stock Options/SARs Weighted Average Grant Price Outstanding at January 1 10,744 $ 67.98 10,493 $ 64.96 Granted 1,821 94.87 2,029 69.95 Exercised (1) (1,673 ) 49.85 (1,291 ) 47.25 Forfeited (241 ) 85.77 (203 ) 80.12 Outstanding at September 30 (2) 10,651 $ 75.02 11,028 $ 67.67 Vested or Expected to Vest (3) 10,300 $ 74.60 10,653 $ 67.22 Exercisable at September 30 (4) 6,302 $ 66.46 6,121 $ 57.34 (1) The total intrinsic value of stock options/SARs exercised for the nine months ended September 30, 2016 and 2015 was $58.7 million and $52.4 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 September 30, 2016 and 2015 was $240.8 million and $136.9 million, respectively. At September 30, 2016 and 2015 , the weighted average remaining contractual life was 4.1 years and 4.4 years, respectively. (3) The total intrinsic value of stock options/SARs vested or expected to vest at September 30, 2016 and 2015 was $237.2 million and $135.7 million, respectively. At September 30, 2016 and 2015 , the weighted average remaining contractual life was 4.0 years and 4.3 years, respectively. (4) The total intrinsic value of stock options/SARs exercisable at September 30, 2016 and 2015 was $196.3 million and $121.6 million, respectively. At September 30, 2016 and 2015 , the weighted average remaining contractual life was 2.8 years and 3.1 years, respectively. At September 30, 2016 , unrecognized compensation expense related to non-vested stock option, SAR and ESPP grants totaled $106.1 million . Such unrecognized expense will be amortized on a straight-line basis over a weighted average period of 3.0 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 $13.1 million and $16.2 million for the three months ended September 30, 2016 and 2015 , respectively, and $45.5 million and $53.9 million for the nine months ended September 30, 2016 and 2015 , respectively. The following table sets forth restricted stock and restricted stock unit transactions for the nine -month periods ended September 30, 2016 and 2015 (shares and units in thousands): Nine Months Ended Nine 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 4,908 $ 70.35 5,394 $ 64.39 Granted 833 87.76 1,036 77.90 Released (1) (1,392 ) 53.15 (1,250 ) 51.02 Forfeited (269 ) 76.40 (152 ) 74.83 Outstanding at September 30 (2) 4,080 $ 79.37 5,028 $ 70.18 (1) The total intrinsic value of restricted stock and restricted stock units released for the nine months ended September 30, 2016 and 2015 was $116.3 million and $102.5 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 September 30, 2016 and 2015 was $394.6 million and $366.0 million, respectively. At September 30, 2016 , unrecognized compensation expense related to restricted stock and restricted stock units totaled $170.3 million . Such unrecognized expense will be amortized on a straight-line basis over a weighted average period of 2.8 years . Performance Units and Performance Stock. EOG grants performance units and/or performance stock (Performance Awards) to its executive officers. As more fully discussed in the grant agreements, the performance metric applicable to these performance-based grants 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 "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, 2015, 405,000 Performance Awards were outstanding. Upon completion of the Performance Period for the Performance Awards granted in 2012, a performance multiple of 200% was applied to the 2012 grants resulting in an additional grant of 142,556 Performance Awards in February 2016. During the nine-month period ended September 30, 2016, a total of 71,805 Performance Awards were granted. A total of 134,016 Performance Awards were released during the nine months ended September 30, 2016 , with a total intrinsic value of $9.7 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 151,096 and a maximum of 819,594 Performance Awards could be outstanding. There were 485,345 Performance Awards outstanding as of September 30, 2016 . The total intrinsic value of Performance Awards outstanding at September 30, 2016 was $46.9 million . Weighted average fair values and valuation assumptions used to value performance unit and performance stock grants of Performance Awards during the nine-month periods ended September 30, 2016 and 2015 are as follows: Nine Months Ended 2016 2015 Weighted Average Fair Value of Grants $ 112.09 $ 80.64 Expected Volatility 32.01 % 29.35 % Risk-Free Interest Rate 0.89 % 1.07 % Expected volatility is based on the term-matched historical volatility over the simulated term, which is calculated as the time between the grant date and the end of the performance period. The risk-free interest rate is based on a 3.25 year zero-coupon risk-free interest rate derived from the Treasury Constant Maturities yield curve on the grant date. Stock-based compensation expense related to the Performance Award grants totaled $5.7 million and $4.1 million for the three month periods ended September 30, 2016 and 2015 , respectively, and $6.6 million and $4.8 million for the nine month periods ended September 30, 2016 and 2015 , respectively. At September 30, 2016 , unrecognized compensation expense related to Performance Awards totaled $7.4 million . Such unrecognized expense will be amortized on a straight-line basis over a weighted average period of 3.3 years .

Net Loss Per Share

Net Loss Per Share	9 Months Ended
	Sep. 30, 2016
Earnings Per Share [Abstract]
Net Loss Per Share [Text Block]	Net Loss Per Share The following table sets forth the computation of Net Loss Per Share for the three -month and nine -month periods ended September 30, 2016 and 2015 (in thousands, except per share data): Three Months Ended Nine Months Ended 2016 2015 2016 2015 Numerator for Basic and Diluted Earnings Per Share - Net Loss $ (190,000 ) $ (4,075,739 ) $ (954,334 ) $ (4,240,219 ) Denominator for Basic Earnings Per Share - Weighted Average Shares 547,838 545,920 547,295 545,466 Potential Dilutive Common Shares - Stock Options/SARs — — — — Restricted Stock/Units and Performance Units/Stock — — — — Denominator for Diluted Earnings Per Share - Adjusted Diluted Weighted Average Shares 547,838 545,920 547,295 545,466 Net Loss Per Share Basic $ (0.35 ) $ (7.47 ) $ (1.74 ) $ (7.77 ) Diluted $ (0.35 ) $ (7.47 ) $ (1.74 ) $ (7.77 ) The diluted earnings per share calculation excludes stock options, SARs, restricted stock and units and performance units and stock that were anti-dilutive. Shares underlying the excluded stock options and SARs totaled 9.9 million and 9.8 million shares for the three months ended September 30, 2016 and 2015 , respectively, and 10.2 million and 10.0 million shares for the nine months ended September 30, 2016 and 2015 , respectively. For both the three months and nine months ended September 30, 2016 , 4.6 million shares of restricted stock, restricted stock units and performance units were excluded. For both the three months and nine months ended September 30, 2015 , 5.4 million shares of restricted stock, restricted stock units and performance units were excluded.

Supplemental Cash Flow Informat

Supplemental Cash Flow Information	9 Months Ended
	Sep. 30, 2016
Supplemental Cash Flow Information [Abstract]
Supplemental Cash Flow Information [Text Block]	Supplemental Cash Flow Information Net cash paid for interest and income taxes was as follows for the nine -month periods ended September 30, 2016 and 2015 (in thousands): Nine Months Ended 2016 2015 Interest (1) $ 184,476 $ 152,590 Income Taxes, Net of Refunds Received $ (2,094 ) $ 69,281 (1) Net of capitalized interest of $25 million and $33 million for the nine months ended September 30, 2016 and 2015 , respectively. EOG's accrued capital expenditures at September 30, 2016 and 2015 were $375 million and $437 million , respectively.

Segment Information

Segment Information	9 Months Ended
	Sep. 30, 2016
Segment Reporting [Abstract]
Segment Information [Text Block]	Segment Information Selected financial information by reportable segment is presented below for the three -month and nine -month periods ended September 30, 2016 and 2015 (in thousands): Three Months Ended Nine Months Ended 2016 2015 2016 2015 Net Operating Revenues United States $ 2,023,130 $ 2,040,881 $ 5,007,119 $ 6,622,781 Trinidad 57,937 98,493 183,461 290,758 Other International (1) 37,437 33,054 58,013 47,128 Total $ 2,118,504 $ 2,172,428 $ 5,248,593 $ 6,960,667 Operating (Loss) Income United States $ (193,453 ) $ (6,110,284 ) $ (1,099,030 ) $ (6,271,908 ) Trinidad 15,688 46,230 41,620 139,116 Other International (1) (15,715 ) (158,903 ) (62,384 ) (223,534 ) Total (193,480 ) (6,222,957 ) (1,119,794 ) (6,356,326 ) Reconciling Items Other (Expense) Income, Net (7,912 ) 8,607 (33,345 ) 7,996 Interest Expense, Net (70,858 ) (60,571 ) (210,356 ) (174,400 ) Loss Before Income Taxes $ (272,250 ) $ (6,274,921 ) $ (1,363,495 ) $ (6,522,730 ) (1) Other International primarily includes EOG's United Kingdom, China and Canada operations. Total assets by reportable segment are presented below at September 30, 2016 and December 31, 2015 (in thousands): At September 30, 2016 At December 31, 2015 Total Assets United States $ 23,949,843 $ 25,347,134 Trinidad 873,069 886,826 Other International (1) 732,009 736,510 Total $ 25,554,921 $ 26,970,470 (1) Other International primarily consists of EOG's United Kingdom, China and Canada operations.

Asset Retirement Obligations

Asset Retirement Obligations	9 Months Ended
	Sep. 30, 2016
Asset Retirement Obligation [Abstract]
Asset Retirement Obligations [Text Block]	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 nine -month periods ended September 30, 2016 and 2015 (in thousands): Nine Months Ended 2016 2015 Carrying Amount at Beginning of Period $ 811,554 $ 752,718 Liabilities Incurred 40,080 38,095 Liabilities Settled (1) (52,518 ) (12,929 ) Accretion 24,462 23,810 Revisions (26,307 ) (13,576 ) Foreign Currency Translations (7,851 ) (4,361 ) Carrying Amount at End of Period $ 789,420 $ 783,757 Current Portion $ 10,133 $ 11,592 Noncurrent Portion $ 779,287 $ 772,165 (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 Consolidated Balance Sheets.

Exploratory Well Costs

Exploratory Well Costs	9 Months Ended
	Sep. 30, 2016
Capitalized Exploratory Well Costs [Abstract]
Exploratory Well Costs [Text Block]	Exploratory Well Costs EOG's net changes in capitalized exploratory well costs for the nine -month period ended September 30, 2016 , are presented below (in thousands): Nine Months Ended Balance at January 1 $ 8,955 Additions Pending the Determination of Proved Reserves 6,688 Reclassifications to Proved Properties (5,274 ) Costs Charged to Expense (10,369 ) Balance at September 30 $ —

Commitments and Contingencies

Commitments and Contingencies	9 Months Ended
	Sep. 30, 2016
Commitments and Contingencies Disclosure [Abstract]
Commitments and Contingencies [Text Block]	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	9 Months Ended
	Sep. 30, 2016
Compensation and Retirement Disclosure [Abstract]
Pension and Postretirement Benefits [Text Block]	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 nine months ended September 30, 2016 and 2015 , EOG's total costs recognized for these pension plans were $28 million and $27 million , respectively. EOG also has postretirement medical and dental plans in place for eligible employees in the United States and Trinidad, the costs of which are not material.

Long-Term Debt

Long-Term Debt	9 Months Ended
	Sep. 30, 2016
Debt Disclosure [Abstract]
Long-Term Debt [Text Block]	Long-Term Debt During the nine months ended September 30, 2016 and 2015 , EOG utilized commercial paper borrowings bearing market interest rates, for various corporate financing purposes. At September 30, 2016 and 2015 , EOG had zero and $30 million , respectively, of outstanding commercial paper borrowings and no uncommitted credit facility borrowings. The average borrowings outstanding under the commercial paper program were $155 million and $7 million during the nine months ended September 30, 2016 and 2015 , respectively. The weighted average interest rates for commercial paper borrowings during the nine months ended September 30, 2016 and 2015 was 0.76% and 0.45% , respectively. At September 30, 2016 , $600 million aggregate principal amount of EOG's 5.875% Senior Notes due 2017 were reclassified as long-term debt based upon its intent and ability to ultimately replace such amount with other long-term debt. On February 1, 2016 , EOG repaid upon maturity the $400 million aggregate principal amount of its 2.500% Senior Notes due 2016 (2016 Notes). On January 14, 2016 , EOG closed its sale of $750 million aggregate principal amount of its 4.15% Senior Notes due 2026 and $250 million aggregate principal amount of its 5.10% Senior Notes due 2036 (collectively, the Notes). Interest on the Notes is payable semi-annually in arrears on January 15 and July 15 of each year beginning on July 15, 2016. Net proceeds from the Notes offering totaled approximately $991 million and were used to repay the 2016 Notes when they matured on February 1, 2016 , and for general corporate purposes, including repayment of outstanding commercial paper borrowings and funding of capital expenditures. 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 September 30, 2016 , 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 1.53% and 3.50% , respectively.

Fair Value Measurements

Fair Value Measurements	9 Months Ended
	Sep. 30, 2016
Fair Value Disclosures [Abstract]
Fair Value Measurements [Text Block]	Fair Value Measurements As more fully discussed in Note 13 to the Consolidated Financial Statements included in EOG's 2015 Annual Report, certain of EOG's financial and nonfinancial assets and liabilities are reported at fair value on the 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 September 30, 2016 . There were no such amounts outstanding at December 31, 2015. Amounts shown 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 September 30, 2016 Financial Assets (1) Crude Oil Collars $ — $ 1 $ — $ 1 Natural Gas Price Swaps/Options — 4 — 4 (1) At September 30, 2016, $2.2 million is included in "Current Assets - Assets From Price Risk Management Activities" and $2.5 million is included in "Other Assets" on the Consolidated Balance Sheets. 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 $625 million were written down to their fair value of $518 million , resulting in pretax impairment charges of $107 million for the nine months ended September 30, 2016. Included in the $107 million pretax impairment charges are $103 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. Fair Value of Debt. At September 30, 2016 and December 31, 2015 , EOG had outstanding $6,990 million and $6,390 million , respectively, aggregate principal amount of senior notes, which had estimated fair values of approximately $7,395 million and $6,524 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

Risk Management Activities	9 Months Ended
	Sep. 30, 2016
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Risk Management Activities [Text Block]	Risk Management Activities Commodity Price Risk . As more fully discussed in Note 12 to the Consolidated Financial Statements included in EOG's 2015 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. Presented below is a comprehensive summary of EOG's crude oil price swap contracts for the nine months ended September 30, 2016, with notional volumes expressed in barrels per day (Bbld) and prices expressed in dollars per barrel ($/Bbl). Crude Oil Price Swap Contracts Volume (Bbld) Weighted Average Price ($/Bbl) 2016 April 12, 2016 through April 30, 2016 (closed) 90,000 $ 42.30 May 1, 2016 through June 30, 2016 (closed) 128,000 42.56 EOG has entered into crude oil collar contracts, which establish ceiling and floor prices for the sale of notional volumes of crude oil as specified in the collar contracts. The collars require that EOG pay the difference between the ceiling price and the average NYMEX West Texas Intermediate crude oil price for the contract month (Index Price) in the event the Index Price is above the ceiling price. The collars grant EOG the right to receive the difference between the floor price and the Index Price in the event the Index Price is below the floor price. Presented below is a comprehensive summary of EOG's crude oil collar contracts for the nine months ended September 30, 2016, with notional volumes expressed in Bbld and prices expressed in $/Bbl. Crude Oil Collar Contracts Weighted Average Price ($/Bbl) Volume (Bbld) Ceiling Price Floor Price 2016 September 2016 (closed) 70,000 $ 54.25 $ 45.00 October 1, 2016 through December 31, 2016 70,000 54.25 45.00 Presented below is a comprehensive summary of EOG's natural gas price swap contracts for the nine months ended September 30, 2016, 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) 2016 March 1, 2016 through August 31, 2016 (closed) 60,000 $ 2.49 2017 March 1, 2017 through November 30, 2017 30,000 $ 3.10 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 nine months ended September 30, 2016 , 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 2016 September 2016 (closed) 56,250 $ 3.46 — $ — October 2016 (closed) 106,250 3.48 — — November 2016 106,250 3.48 — — 2017 March 1, 2017 through November 30, 2017 168,750 $ 3.41 135,000 $ 2.90 2018 March 1, 2018 through November 30, 2018 75,000 $ 3.30 60,000 $ 2.90 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. There were no derivative instruments in a net liability position at September 30, 2016 . EOG had no collateral posted and held no collateral at September 30, 2016 and December 31, 2015 .

Divestitures

Divestitures	9 Months Ended
	Sep. 30, 2016
Discontinued Operations and Disposal Groups [Abstract]
Divestitures [Text Block]	Divestitures During the first nine months of 2016 , EOG received proceeds of approximately $458 million primarily from sales of producing properties and acreage in Texas, the Rocky Mountain area and Oklahoma. Additionally, in the third quarter of 2016, EOG signed purchase and sale agreements for the sale of certain properties in the United States. At September 30, 2016 , the book value of these proved oil and gas properties and other property, plant and equipment held for sale and the related asset retirement obligations were $55 million and $14 million , respectively. During the first nine months of 2015 , EOG received proceeds of approximately $144 million primarily from sales of gathering and processing assets. During the third quarter of 2016, EOG completed the sale of all its Argentina assets.

Subsequent Event

Subsequent Event	9 Months Ended
	Sep. 30, 2016
Subsequent Events [Abstract]
Subsequent Event [Text Block]	Subsequent Event 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). Subject to the terms of the agreements, EOG issued to the shareholders of YPC, ABO and MYCO and to certain of the sellers under the related asset purchase transactions an aggregate of approximately 25 million shares of EOG common stock and paid to certain of the sellers under the asset purchase transactions an aggregate of approximately $16 million in cash for total consideration transferred of $2.4 billion . In addition, under the terms of the transactions, EOG repaid approximately $164 million of debt owed by the Yates Entities, which was offset by approximately $64 million of cash of the Yates Entities. The assets of the Yates Entities include producing wells in addition to acreage in the Delaware Basin Core, the Delaware Basin Shelf, the Powder River Basin and other Western basins. The financial results of YPC, ABO and MYCO will be included in EOG's consolidated financial statements beginning October 4, 2016. EOG will account for the mergers with YPC, ABO and MYCO and 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. Acquisition-related costs are expensed as incurred. Due to the limited time elapsed since the acquisition date, the initial accounting for the business combination is incomplete. As a result, EOG is unable to provide amounts recognized as of October 4, 2016, the acquisition date, for major classes of assets acquired and liabilities assumed from these transactions. This information will be included in EOG's Annual Report on Form 10-K for the year ended December 31, 2016.

Stock-Based Compensation (Table

Stock-Based Compensation (Tables)	9 Months Ended
	Sep. 30, 2016
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 Consolidated Statements of Income and Comprehensive Income based upon the job function of the employees receiving the grants as follows (in millions): Three Months Ended Nine Months Ended 2016 2015 2016 2015 Lease and Well $ 8.9 $ 10.3 $ 28.2 $ 32.9 Gathering and Processing Costs 0.4 0.4 1.0 1.0 Exploration Costs 4.1 6.0 15.6 19.3 General and Administrative 24.2 23.6 52.3 48.8 Total $ 37.6 $ 40.3 $ 97.1 $ 102.0
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 nine -month periods ended September 30, 2016 and 2015 are as follows: Stock Options/SARs ESPP Nine Months Ended Nine Months Ended 2016 2015 2016 2015 Weighted Average Fair Value of Grants $ 25.77 $ 21.87 $ 19.28 $ 21.40 Expected Volatility 31.52 % 38.04 % 36.54 % 32.54 % Risk-Free Interest Rate 0.78 % 0.83 % 0.43 % 0.12 % Dividend Yield 0.76 % 0.85 % 0.82 % 0.72 % Expected Life 5.4 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 nine -month periods ended September 30, 2016 and 2015 (stock options and SARs in thousands): Nine Months Ended Nine Months Ended Number of Stock Options/SARs Weighted Average Grant Price Number of Stock Options/SARs Weighted Average Grant Price Outstanding at January 1 10,744 $ 67.98 10,493 $ 64.96 Granted 1,821 94.87 2,029 69.95 Exercised (1) (1,673 ) 49.85 (1,291 ) 47.25 Forfeited (241 ) 85.77 (203 ) 80.12 Outstanding at September 30 (2) 10,651 $ 75.02 11,028 $ 67.67 Vested or Expected to Vest (3) 10,300 $ 74.60 10,653 $ 67.22 Exercisable at September 30 (4) 6,302 $ 66.46 6,121 $ 57.34 (1) The total intrinsic value of stock options/SARs exercised for the nine months ended September 30, 2016 and 2015 was $58.7 million and $52.4 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 September 30, 2016 and 2015 was $240.8 million and $136.9 million, respectively. At September 30, 2016 and 2015 , the weighted average remaining contractual life was 4.1 years and 4.4 years, respectively. (3) The total intrinsic value of stock options/SARs vested or expected to vest at September 30, 2016 and 2015 was $237.2 million and $135.7 million, respectively. At September 30, 2016 and 2015 , the weighted average remaining contractual life was 4.0 years and 4.3 years, respectively. (4) The total intrinsic value of stock options/SARs exercisable at September 30, 2016 and 2015 was $196.3 million and $121.6 million, respectively. At September 30, 2016 and 2015 , the weighted average remaining contractual life was 2.8 years and 3.1 years, respectively.
Restricted Stock and Restricted Stock Unit Transactions	The following table sets forth restricted stock and restricted stock unit transactions for the nine -month periods ended September 30, 2016 and 2015 (shares and units in thousands): Nine Months Ended Nine 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 4,908 $ 70.35 5,394 $ 64.39 Granted 833 87.76 1,036 77.90 Released (1) (1,392 ) 53.15 (1,250 ) 51.02 Forfeited (269 ) 76.40 (152 ) 74.83 Outstanding at September 30 (2) 4,080 $ 79.37 5,028 $ 70.18 (1) The total intrinsic value of restricted stock and restricted stock units released for the nine months ended September 30, 2016 and 2015 was $116.3 million and $102.5 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 September 30, 2016 and 2015 was $394.6 million and $366.0 million, respectively.
Weighted Average Fair Values and Valuation Assumptions for Performance Units/Stocks	Weighted average fair values and valuation assumptions used to value performance unit and performance stock grants of Performance Awards during the nine-month periods ended September 30, 2016 and 2015 are as follows: Nine Months Ended 2016 2015 Weighted Average Fair Value of Grants $ 112.09 $ 80.64 Expected Volatility 32.01 % 29.35 % Risk-Free Interest Rate 0.89 % 1.07 %

Net Loss Per Share (Tables)

Net Loss Per Share (Tables)	9 Months Ended
	Sep. 30, 2016
Earnings Per Share [Abstract]
Computation of Net Loss Per Share	The following table sets forth the computation of Net Loss Per Share for the three -month and nine -month periods ended September 30, 2016 and 2015 (in thousands, except per share data): Three Months Ended Nine Months Ended 2016 2015 2016 2015 Numerator for Basic and Diluted Earnings Per Share - Net Loss $ (190,000 ) $ (4,075,739 ) $ (954,334 ) $ (4,240,219 ) Denominator for Basic Earnings Per Share - Weighted Average Shares 547,838 545,920 547,295 545,466 Potential Dilutive Common Shares - Stock Options/SARs — — — — Restricted Stock/Units and Performance Units/Stock — — — — Denominator for Diluted Earnings Per Share - Adjusted Diluted Weighted Average Shares 547,838 545,920 547,295 545,466 Net Loss Per Share Basic $ (0.35 ) $ (7.47 ) $ (1.74 ) $ (7.77 ) Diluted $ (0.35 ) $ (7.47 ) $ (1.74 ) $ (7.77 )

Supplemental Cash Flow Inform22

Supplemental Cash Flow Information (Tables)	9 Months Ended
	Sep. 30, 2016
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 nine -month periods ended September 30, 2016 and 2015 (in thousands): Nine Months Ended 2016 2015 Interest (1) $ 184,476 $ 152,590 Income Taxes, Net of Refunds Received $ (2,094 ) $ 69,281 (1) Net of capitalized interest of $25 million and $33 million for the nine months ended September 30, 2016 and 2015 , respectively.

Segment Information (Tables)

Segment Information (Tables)	9 Months Ended
	Sep. 30, 2016
Segment Reporting [Abstract]
Selected Financial Information by Reportable Segment	Selected financial information by reportable segment is presented below for the three -month and nine -month periods ended September 30, 2016 and 2015 (in thousands): Three Months Ended Nine Months Ended 2016 2015 2016 2015 Net Operating Revenues United States $ 2,023,130 $ 2,040,881 $ 5,007,119 $ 6,622,781 Trinidad 57,937 98,493 183,461 290,758 Other International (1) 37,437 33,054 58,013 47,128 Total $ 2,118,504 $ 2,172,428 $ 5,248,593 $ 6,960,667 Operating (Loss) Income United States $ (193,453 ) $ (6,110,284 ) $ (1,099,030 ) $ (6,271,908 ) Trinidad 15,688 46,230 41,620 139,116 Other International (1) (15,715 ) (158,903 ) (62,384 ) (223,534 ) Total (193,480 ) (6,222,957 ) (1,119,794 ) (6,356,326 ) Reconciling Items Other (Expense) Income, Net (7,912 ) 8,607 (33,345 ) 7,996 Interest Expense, Net (70,858 ) (60,571 ) (210,356 ) (174,400 ) Loss Before Income Taxes $ (272,250 ) $ (6,274,921 ) $ (1,363,495 ) $ (6,522,730 ) (1) Other International primarily includes EOG's United Kingdom, China and Canada operations.
Assets by Reportable Segment	Total assets by reportable segment are presented below at September 30, 2016 and December 31, 2015 (in thousands): At September 30, 2016 At December 31, 2015 Total Assets United States $ 23,949,843 $ 25,347,134 Trinidad 873,069 886,826 Other International (1) 732,009 736,510 Total $ 25,554,921 $ 26,970,470 (1) Other International primarily consists of EOG's United Kingdom, China and Canada operations.

Asset Retirement Obligations (T

Asset Retirement Obligations (Tables)	9 Months Ended
	Sep. 30, 2016
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 nine -month periods ended September 30, 2016 and 2015 (in thousands): Nine Months Ended 2016 2015 Carrying Amount at Beginning of Period $ 811,554 $ 752,718 Liabilities Incurred 40,080 38,095 Liabilities Settled (1) (52,518 ) (12,929 ) Accretion 24,462 23,810 Revisions (26,307 ) (13,576 ) Foreign Currency Translations (7,851 ) (4,361 ) Carrying Amount at End of Period $ 789,420 $ 783,757 Current Portion $ 10,133 $ 11,592 Noncurrent Portion $ 779,287 $ 772,165 (1) Includes settlements related to asset sales.

Exploratory Well Costs (Tables)

Exploratory Well Costs (Tables)	9 Months Ended
	Sep. 30, 2016
Capitalized Exploratory Well Costs [Abstract]
Net Changes In Capitalized Exploratory Well Costs	EOG's net changes in capitalized exploratory well costs for the nine -month period ended September 30, 2016 , are presented below (in thousands): Nine Months Ended Balance at January 1 $ 8,955 Additions Pending the Determination of Proved Reserves 6,688 Reclassifications to Proved Properties (5,274 ) Costs Charged to Expense (10,369 ) Balance at September 30 $ —

Fair Value Measurements (Tables

Fair Value Measurements (Tables)	9 Months Ended
	Sep. 30, 2016
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
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 September 30, 2016 . There were no such amounts outstanding at December 31, 2015. Amounts shown 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 September 30, 2016 Financial Assets (1) Crude Oil Collars $ — $ 1 $ — $ 1 Natural Gas Price Swaps/Options — 4 — 4 (1) At September 30, 2016, $2.2 million is included in "Current Assets - Assets From Price Risk Management Activities" and $2.5 million is included in "Other Assets" on the Consolidated Balance Sheets

Risk Management Activities (Tab

Risk Management Activities (Tables)	9 Months Ended
	Sep. 30, 2016
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Commodity Derivative Contracts - Crude Oil Price Swaps	Presented below is a comprehensive summary of EOG's crude oil price swap contracts for the nine months ended September 30, 2016, with notional volumes expressed in barrels per day (Bbld) and prices expressed in dollars per barrel ($/Bbl). Crude Oil Price Swap Contracts Volume (Bbld) Weighted Average Price ($/Bbl) 2016 April 12, 2016 through April 30, 2016 (closed) 90,000 $ 42.30 May 1, 2016 through June 30, 2016 (closed) 128,000 42.56
Commodity Derivative Contracts - Crude Oil Collars	Presented below is a comprehensive summary of EOG's crude oil collar contracts for the nine months ended September 30, 2016, with notional volumes expressed in Bbld and prices expressed in $/Bbl. Crude Oil Collar Contracts Weighted Average Price ($/Bbl) Volume (Bbld) Ceiling Price Floor Price 2016 September 2016 (closed) 70,000 $ 54.25 $ 45.00 October 1, 2016 through December 31, 2016 70,000 54.25 45.00
Commodity Derivative Contracts - Natural Gas Price Swaps	Presented below is a comprehensive summary of EOG's natural gas price swap contracts for the nine months ended September 30, 2016, 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) 2016 March 1, 2016 through August 31, 2016 (closed) 60,000 $ 2.49 2017 March 1, 2017 through November 30, 2017 30,000 $ 3.10
Commodity Derivative Contracts - Natural Gas Options	Presented below is a comprehensive summary of EOG's natural gas call and put option contracts for the nine months ended September 30, 2016 , 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 2016 September 2016 (closed) 56,250 $ 3.46 — $ — October 2016 (closed) 106,250 3.48 — — November 2016 106,250 3.48 — — 2017 March 1, 2017 through November 30, 2017 168,750 $ 3.41 135,000 $ 2.90 2018 March 1, 2018 through November 30, 2018 75,000 $ 3.30 60,000 $ 2.90

Summary of Significant Accoun28

Summary of Significant Accounting Policies (Details) $ in Millions	Dec. 31, 2015USD ($)
Accounting Policies [Abstract]
Debt Issuance Costs, Net	$ 4.8

Stock-Based Compensation (Detai

Stock-Based Compensation (Details) - USD ($) $ / shares in Units, $ in Millions		3 Months Ended		9 Months Ended
		Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Stock Options/SARs and Employee Stock Purchase Plan (ESPP) Disclosures [Line Items]
Common Shares Available for Grant		21,400,000		21,400,000
Compensation expense related to the company's stock-based compensation plans		$ 37.6	$ 40.3	$ 97.1	$ 102
Stock Options and SARs [Member]
Stock Options/SARs and Employee Stock Purchase Plan (ESPP) Disclosures [Line Items]
Unrecognized compensation expense		106.1		$ 106.1
Weighted average period over which unrecognized compensation expense will be recognized (in years)				3 years
Stock-based compensation expense related to stock options, SAR and ESPP grants		$ 18.8	$ 20	$ 45	$ 43.3
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)				$ 25.77	$ 21.87
Expected Volatility (in hundredths)				31.52%	38.04%
Risk-Free Interest Rate (in hundredths)				0.78%	0.83%
Dividend Yield (in hundredths)				0.76%	0.85%
Expected Life (in years)				5 years 4 months 24 days	5 years 3 months 18 days
Stock Options and SARs Rollforward [Abstract]
Outstanding at January 1 (in shares)				10,744,000	10,493,000
Granted (in shares)				1,821,000	2,029,000
Exercised (1) (in shares)	[1]			(1,673,000)	(1,291,000)
Forfeited (in shares)				(241,000)	(203,000)
Outstanding at September 30 (2) (in shares)	[2]	10,651,000	11,028,000	10,651,000	11,028,000
Stock Options and SARs Vested or Expected to Vest (in shares)	[3]	10,300,000	10,653,000	10,300,000	10,653,000
Stock Options and SARs Exercisable at September 30 (in shares)	[4]	6,302,000	6,121,000	6,302,000	6,121,000
Weighted Average Grant Price Stock Option and SARs [Rollforward]
Outstanding at January 1 (price per share)				$ 67.98	$ 64.96
Granted (price per share)				94.87	69.95
Exercised (1) (price per share)	[1]			49.85	47.25
Forfeited (price per share)				85.77	80.12
Outstanding at September 30 (2) (price per share)	[2]	$ 75.02	$ 67.67	75.02	67.67
Weighted average grant price for stock options/SARs vested or expected to vest (price per share)	[3]	74.60	67.22	74.60	67.22
Stock Options and SARs Exercisable at September 30 (price per share)	[4]	$ 66.46	$ 57.34	66.46	57.34
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)				$ 19.28	$ 21.40
Expected Volatility (in hundredths)				36.54%	32.54%
Risk-Free Interest Rate (in hundredths)				0.43%	0.12%
Dividend Yield (in hundredths)				0.82%	0.72%
Expected Life (in years)				6 months	6 months
Restricted Stock And Restricted Stock Units [Member]
Stock Options/SARs and Employee Stock Purchase Plan (ESPP) Disclosures [Line Items]
Unrecognized compensation expense		$ 170.3		$ 170.3
Weighted average period over which unrecognized compensation expense will be recognized (in years)				2 years 9 months 18 days
Share-Based Compensation Arrangement By Restricted Stock And Restricted Stock Units Compensation Cost		$ 13.1	$ 16.2	$ 45.5	$ 53.9
Restricted Stock/Restricted Stock Units and Performance Units/Performance Stock [Roll Forward]
Outstanding at January 1 (in shares)				4,908,000	5,394,000
Granted (in shares)				833,000	1,036,000
Released (1) (in shares)	[5]			(1,392,000)	(1,250,000)
Forfeited (in shares)				(269,000)	(152,000)
Outstanding at September 30 (2) (in shares)	[6]	4,080,000	5,028,000	4,080,000	5,028,000
Weighted Average Grant Price Restricted Stock and Restricted Stock Units/Performance Units and Performance Stock [Roll Forward]
Outstanding at January 1 (price per share)				$ 70.35	$ 64.39
Granted (price per share)				87.76	77.90
Released (1) (price per share)	[5]			53.15	51.02
Forfeited (price per share)				76.40	74.83
Outstanding at September 30 (2) (price per share)	[6]	$ 79.37	$ 70.18	$ 79.37	70.18
Performance Units and Performance Stock [Member]
Stock Options/SARs and Employee Stock Purchase Plan (ESPP) Disclosures [Line Items]
Unrecognized compensation expense		$ 7.4		$ 7.4
Weighted average period over which unrecognized compensation expense will be recognized (in years)				3 years 3 months 18 days
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)				$ 112.09	$ 80.64
Expected Volatility (in hundredths)				32.01%	29.35%
Risk-Free Interest Rate (in hundredths)				0.89%	1.07%
Term Of Zero- Coupon Risk- Free Interest Rate In Years Derived From Treasury Constant Maturities Yield Curve				3 years 3 months
Restricted Stock/Restricted Stock Units and Performance Units/Performance Stock [Roll Forward]
Outstanding at January 1 (in shares)				405,000
Granted (in shares)				71,805
Released (1) (in shares)				(134,016)
Outstanding at September 30 (2) (in shares)		485,345		485,345
Weighted Average Grant Price Restricted Stock and Restricted Stock Units/Performance Units and Performance Stock [Roll Forward]
Aggregate intrinsic value of stock and units outstanding		$ 46.9		$ 46.9
Intrinsic value of stock and units released during the year				$ 9.7
Performance Units and Performance Stock [Abstract]
Additional Performance Awards Granted				142,556
Minimum Performance Units and Stock Allowed to be Outstanding				151,096
Share-Based Compensation Arrangement By Performance Units and Performance Stock Compensation Cost		5.7	$ 4.1	$ 6.6	$ 4.8
Maximum Performance Units and Stock Allowed to be Outstanding				819,594
Maximum Vest Period from the Date of Grant				5 years
Performance Period for Performance units and shares				3 years
Minimum Performance Multiple at the Completion of the Performance Period				0.00%
Maximum Performance Multiple at the Completion of the Performance Period				200.00%
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		8.9	10.3	$ 28.2	32.9
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		0.4	0.4	1	1
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		4.1	6	15.6	19.3
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		$ 24.2	$ 23.6	$ 52.3	$ 48.8
[1]	The total intrinsic value of stock options/SARs exercised for the nine months ended September 30, 2016 and 2015 was $58.7 million and $52.4 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 September 30, 2016 and 2015 was $240.8 million and $136.9 million, respectively. At September 30, 2016 and 2015, the weighted average remaining contractual life was 4.1 years and 4.4 years, respectively.
[3]	The total intrinsic value of stock options/SARs vested or expected to vest at September 30, 2016 and 2015 was $237.2 million and $135.7 million, respectively. At September 30, 2016 and 2015, the weighted average remaining contractual life was 4.0 years and 4.3 years, respectively.
[4]	The total intrinsic value of stock options/SARs exercisable at September 30, 2016 and 2015 was $196.3 million and $121.6 million, respectively. At September 30, 2016 and 2015, the weighted average remaining contractual life was 2.8 years and 3.1 years, respectively.
[5]	The total intrinsic value of restricted stock and restricted stock units released for the nine months ended September 30, 2016 and 2015 was $116.3 million and $102.5 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 September 30, 2016 and 2015 was $394.6 million and $366.0 million, respectively.

Net Loss Per Share (Details)

Net Loss Per Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Numerator for Basic and Diluted Earnings Per Share - [Abstract]
Net Loss	$ (190,000)	$ (4,075,739)	$ (954,334)	$ (4,240,219)
Denominator for Basic Earnings Per Share - [Abstract]
Weighted Average Shares	547,838	545,920	547,295	545,466
Potential Dilutive Common Shares -[Abstract]
Stock Options/SARs	0	0	0	0
Restricted Stock/Units and Performance Units/Stock	0	0	0	0
Denominator for Diluted Earnings Per Share - [Abstract]
Adjusted Diluted Weighted Average Shares	547,838	545,920	547,295	545,466
Net Income (Loss) Per Share [Abstract]
Basic	$ (0.35)	$ (7.47)	$ (1.74)	$ (7.77)
Diluted	$ (0.35)	$ (7.47)	$ (1.74)	$ (7.77)
Earnings Per Share, Diluted, Other Disclosures [Abstract]
Anti-dilutive Stock Options and SARs excluded from Diluted Earnings Per Share Calculation	9,900	9,800	10,200	10,000
Restricted Stock and Restricted Stock Units and Performance Units and Performance Stock Excluded from Calculation	4,600	5,400	4,600	5,400

Supplemental Cash Flow Inform31

Supplemental Cash Flow Information (Details) - USD ($) $ in Thousands		9 Months Ended
		Sep. 30, 2016	Sep. 30, 2015
Supplemental Cash Flow Information [Abstract]
Interest (1)	[1]	$ 184,476	$ 152,590
Income Taxes, Net of Refunds Received		(2,094)	69,281
Accrued Capital Expenditures		$ 375,000	$ 437,000
[1]	Net of capitalized interest of $25 million and $33 million for the nine months ended September 30, 2016 and 2015, respectively.

Segment Information (Details)

Segment Information (Details) - USD ($) $ in Thousands		3 Months Ended		9 Months Ended
		Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015	Dec. 31, 2015
Schedule of Segment Reporting Information By Segment [Abstract]
Net Operating Revenues		$ 2,118,504	$ 2,172,428	$ 5,248,593	$ 6,960,667
Other (Expense) Income, Net		(7,912)	8,607	(33,345)	7,996
Interest Expense, Net		(70,858)	(60,571)	(210,356)	(174,400)
Loss Before Income Taxes		(272,250)	(6,274,921)	(1,363,495)	(6,522,730)
Total Assets		25,554,921		25,554,921		$ 26,970,470
Operating (Loss) Income		(193,480)	(6,222,957)	(1,119,794)	(6,356,326)
United States [Member]
Schedule of Segment Reporting Information By Segment [Abstract]
Net Operating Revenues		2,023,130	2,040,881	5,007,119	6,622,781
Total Assets		23,949,843		23,949,843		25,347,134
Operating (Loss) Income		(193,453)	(6,110,284)	(1,099,030)	(6,271,908)
Trinidad [Member]
Schedule of Segment Reporting Information By Segment [Abstract]
Net Operating Revenues		57,937	98,493	183,461	290,758
Total Assets		873,069		873,069		886,826
Operating (Loss) Income		15,688	46,230	41,620	139,116
Other International [Member]
Schedule of Segment Reporting Information By Segment [Abstract]
Net Operating Revenues	[1]	37,437	33,054	58,013	47,128
Total Assets	[1]	732,009		732,009		$ 736,510
Operating (Loss) Income	[1]	$ (15,715)	$ (158,903)	$ (62,384)	$ (223,534)
[1]	Other International primarily includes EOG's United Kingdom, China and Canada operations.

Asset Retirement Obligations (D

Asset Retirement Obligations (Details) - USD ($) $ in Thousands		9 Months Ended
		Sep. 30, 2016	Sep. 30, 2015
Asset Retirement Obligation [Abstract]
Carrying Amount at Beginning of Period		$ 811,554	$ 752,718
Liabilities Incurred		40,080	38,095
Liabilities Settled (1)	[1]	(52,518)	(12,929)
Accretion		24,462	23,810
Revisions		(26,307)	(13,576)
Foreign Currency Translations		(7,851)	(4,361)
Carrying Amount at End of Period		789,420	783,757
Current Portion		10,133	11,592
Noncurrent Portion		$ 779,287	$ 772,165
[1]	Includes settlements related to asset sales.

Exploratory Well Costs (Details

Exploratory Well Costs (Details) $ in Thousands	9 Months Ended
	Sep. 30, 2016USD ($)
CapitalizedExploratoryWellCostsAbstract [Line Items]
Balance at January 1	$ 8,955
Additions Pending the Determination of Proved Reserves	6,688
Reclassifications to Proved Properties	(5,274)
Costs Charged to Expense	(10,369)
Balance at September 30	$ 0

Pension and Postretirement Be35

Pension and Postretirement Benefits (Details) - USD ($) $ in Millions	9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015
Defined Benefit and Defined Contribution Plan Disclosure [Line Items]
Total pension plan costs	$ 28	$ 27

Long-Term Debt (Details)

Long-Term Debt (Details) - USD ($)	9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015
Line of Credit Facility [Line Items]
Weighted average interest rate (in hundredths)	0.76%	0.45%
Uncommitted Credit Facility [Member]
Line of Credit Facility [Line Items]
Borrowings Outstanding	$ 0	$ 0
Commercial Paper [Member]
Line of Credit Facility [Line Items]
Borrowings Outstanding	0	30,000,000
Average Outstanding Amount	155,000,000	$ 7,000,000
Revolving Credit Agreement 2020 [Member]
Line of Credit Facility [Line Items]
Borrowings Outstanding	$ 0
Line of Credit Facility, Expiration Date	Jul. 21, 2020
Letter of Credit Facility Current Maximum Capacity	$ 2,000,000,000
Eurodollar rate at period end (in hundredths)	1.53%
Base rate at period end (in hundredths)	3.50%
2.500% Senior Notes Due 2016 [Member]
Debt Instrument [Abstract]
Debt Instrument Issuance Face Amount	$ 400,000,000
Debt Instrument Issuance Interest Rate	2.50%
Debt Instrument, Maturity Date	Feb. 1, 2016
the Notes due 2026 [Member]
Debt Instrument [Abstract]
Debt Instrument Issuance Face Amount	$ 750,000,000
Debt Instrument Issuance Interest Rate	4.15%
the Notes due 2036 [Member]
Debt Instrument [Abstract]
Debt Instrument Issuance Face Amount	$ 250,000,000
Debt Instrument Issuance Interest Rate	5.10%
the Notes [Member]
Debt Instrument [Abstract]
Debt Instrument, Issuance Date	Jan. 14, 2016
Net proceeds from Issuance of Senior Long-Term Debt	$ 991,000,000
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 ($)		9 Months Ended
		Sep. 30, 2016		Dec. 31, 2015
Financial Assets:
Financial Assets: Crude Oil Collars		$ 1,000,000
Financial Assets: Natural Gas Price Swaps/Options		4,000,000		$ 0
Proved Oil and Gas Properties, Other Property, Plant and Equipment and Other Assets [Abstract]
Pretax Impairment Charges for Proved Oil and Gas Properties and Other Assets, in which EOG utilized an accepted offer from a third-party purchaser		103,000,000
Pretax Impairment Charges for Proved Oil and Gas Properties, Other Property, Plant and Equipment and Other Assets		107,000,000
Proved Oil and Gas Properties, Other Property, Plant and Equipment and Other Assets Written Down During the Period - Fair value at End of Period		518,000,000
Proved Oil and Gas Properties, Other Property, Plant and Equipment and Other Assets Carrying Amount		625,000,000
Debt Disclosure [Abstract]
Estimated Fair Value of Debt		7,395,000,000		6,524,000,000
Aggregate Principal Amount of Current and Long-Term Debt		6,990,000,000		6,390,000,000
Fair Value, Inputs, Level 1 [Member]
Financial Assets:
Financial Assets: Crude Oil Collars		0
Financial Assets: Natural Gas Price Swaps/Options		0		0
Fair Value, Inputs, Level 2 [Member]
Financial Assets:
Financial Assets: Crude Oil Collars	[1]	1,000,000
Financial Assets: Natural Gas Price Swaps/Options		4,000,000	[1]	0
Fair Value, Inputs, Level 3 [Member]
Financial Assets:
Financial Assets: Crude Oil Collars		0
Financial Assets: Natural Gas Price Swaps/Options		$ 0		$ 0
[1]	At September 30, 2016, $2.2 million is included in "Current Assets - Assets From Price Risk Management Activities" and $2.5 million is included in "Other Assets" on the Consolidated Balance Sheets.

Risk Management Activities (Det

Risk Management Activities (Details)	9 Months Ended
	Sep. 30, 2016USD ($)MMBTU$ / bbl$ / MMBTUbbl	Dec. 31, 2015USD ($)
Derivatives, Fair Value [Line Items]
Derivative Liability | $	$ 0
Derivative Assets, Current | $	2,185,000	$ 0
Derivative Collateral [Abstract]
Collateral Held on Derivative | $	0	0
Collateral Had on Derivative | $	$ 0	$ 0
Crude Oil Price Swap Contracts - May through June (closed)[Member]
Derivatives, Fair Value [Line Items]
Volume (Bbld) | bbl	128,000
Derivative, Swap Type, Average Fixed Price | $ / bbl	42.56
Crude Oil Price Swap Contracts - April (closed)[Member]
Derivatives, Fair Value [Line Items]
Volume (Bbld) | bbl	90,000
Derivative, Swap Type, Average Fixed Price | $ / bbl	42.30
Crude Oil Collar Contracts - September (closed) [Member]
Derivatives, Fair Value [Line Items]
Volume (Bbld) | bbl	70,000
Derivative, Average Cap Price | $ / bbl	54.25
Derivative, Average Floor Price | $ / bbl	45
Crude Oil Collar Contracts - October through December [Member]
Derivatives, Fair Value [Line Items]
Volume (Bbld) | bbl	70,000
Derivative, Average Cap Price | $ / bbl	54.25
Derivative, Average Floor Price | $ / bbl	45
Natural Gas Price Swap Contracts - March through August (closed) [Member]
Derivatives, Fair Value [Line Items]
Volume (MMBtud) | MMBTU	60,000
Derivative, Swap Type, Average Fixed Price | $ / MMBTU	2.49
Natural Gas Derivative Contracts Year Two - March through November [Member]
Derivatives, Fair Value [Line Items]
Volume (MMBtud) | MMBTU	30,000
Derivative, Swap Type, Average Fixed Price | $ / MMBTU	3.10
Call Option [Member] | Natural Gas Option Contracts September (closed) [Member]
Derivatives, Fair Value [Line Items]
Volume (MMBtud) | MMBTU	56,250
Derivative, Average Price Risk Option Strike Price | $ / MMBTU	3.46
Call Option [Member] | Natural Gas Option Contracts - October (closed) [Member]
Derivatives, Fair Value [Line Items]
Volume (MMBtud) | MMBTU	106,250
Derivative, Average Price Risk Option Strike Price | $ / MMBTU	3.48
Call Option [Member] | Natural Gas Option Contracts November [Member]
Derivatives, Fair Value [Line Items]
Volume (MMBtud) | MMBTU	106,250
Derivative, Average Price Risk Option Strike Price | $ / MMBTU	3.48
Call Option [Member] | Natural Gas Derivative Contracts Year Two - March through November [Member]
Derivatives, Fair Value [Line Items]
Volume (MMBtud) | MMBTU	168,750
Derivative, Average Price Risk Option Strike Price | $ / MMBTU	3.41
Call Option [Member] | Natural Gas Derivative Contracts Year Three - March through November [Member]
Derivatives, Fair Value [Line Items]
Volume (MMBtud) | MMBTU	75,000
Derivative, Average Price Risk Option Strike Price | $ / MMBTU	3.30
Put Option [Member] | Natural Gas Option Contracts September (closed) [Member]
Derivatives, Fair Value [Line Items]
Volume (MMBtud) | MMBTU	0
Derivative, Average Price Risk Option Strike Price | $ / MMBTU	0
Put Option [Member] | Natural Gas Option Contracts - October (closed) [Member]
Derivatives, Fair Value [Line Items]
Volume (MMBtud) | MMBTU	0
Derivative, Average Price Risk Option Strike Price | $ / MMBTU	0
Put Option [Member] | Natural Gas Option Contracts November [Member]
Derivatives, Fair Value [Line Items]
Volume (MMBtud) | MMBTU	0
Derivative, Average Price Risk Option Strike Price | $ / MMBTU	0
Put Option [Member] | Natural Gas Derivative Contracts Year Two - March through November [Member]
Derivatives, Fair Value [Line Items]
Volume (MMBtud) | MMBTU	135,000
Derivative, Average Price Risk Option Strike Price | $ / MMBTU	2.90
Put Option [Member] | Natural Gas Derivative Contracts Year Three - March through November [Member]
Derivatives, Fair Value [Line Items]
Volume (MMBtud) | MMBTU	60,000
Derivative, Average Price Risk Option Strike Price | $ / MMBTU	2.90

Divestitures (Details)

Divestitures (Details) - USD ($) $ in Millions	9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015
Discontinued Operations and Disposal Groups [Abstract]
Proceeds from Sales of Producing Properties, Acreage and Other Assets	$ 458	$ 144
Book Value of Assets Held for Sale	55
Asset Retirement Obligations	$ 14

Subsequent Event (Details)

Subsequent Event (Details) shares in Millions, $ in Millions	9 Months Ended
	Sep. 30, 2016USD ($)shares
Subsequent Events [Abstract]
Subsequent Event, Date	Oct. 4, 2016
Stock Issued During Period, Shares, Acquisitions | shares	25
Payments to Acquire Businesses	$ 16
Total consideration of mergers and transactions transferred	2,400
Business Combination, Recognized Identifiable - Cash and Equivalents	64
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Noncurrent Liabilities, Long-term Debt	$ 164