EOG Resources (EOG) 10-Q 4 Nov 14 2014 Q3 Quarterly report Financial data

Document_and_Entity_Informatio

Document and Entity Information (USD $)	9 Months Ended
	Sep. 30, 2014	Oct. 27, 2014	Jun. 28, 2013
Document and Entity Information [Abstract]	'	'	'
Entity Registrant Name	'EOG RESOURCES INC	'	'
Entity Central Index Key	'0000821189	'	'
Current Fiscal Year End Date	'--12-31	'	'
Entity Well-known Seasoned Issuer	'Yes	'	'
Entity Voluntary Filers	'No	'	'
Entity Current Reporting Status	'Yes	'	'
Entity Filer Category	'Large Accelerated Filer	'	'
Entity Public Float	'	'	$35,668,000,000
Entity Common Stock, Shares Outstanding	'	548,009,414	'
Document Fiscal Year Focus	'2014	'	'
Document Fiscal Period Focus	'Q3	'	'
Document Type	'10-Q	'	'
Amendment Flag	'false	'	'
Document Period End Date	30-Sep-14	'	'

Consolidated_Statements_of_Inc

Consolidated Statements of Income and Comprehensive Income (USD $)	3 Months Ended		9 Months Ended
In Thousands, except Per Share data, unless otherwise specified	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Net Operating Revenues	'	'	'	'
Crude Oil and Condensate	$2,671,502	$2,337,742	$7,687,579	$6,132,574
Natural Gas Liquids	258,927	208,190	753,135	556,176
Natural Gas	443,108	396,123	1,508,892	1,269,604
Gains (Losses) on Mark-to-Market Commodity Derivative Contracts	469,125	-293,387	84,119	-206,853
Gathering, Processing and Marketing	1,196,933	872,699	3,240,139	2,755,069
Gains on Asset Dispositions, Net	60,346	8,183	75,700	185,569
Other, Net	18,675	11,846	40,279	45,956
Total	5,118,616	3,541,396	13,389,843	10,738,095
Operating Expenses	'	'	'	'
Lease and Well	368,340	299,169	1,035,632	817,057
Transportation Costs	246,067	219,790	729,883	628,538
Gathering and Processing Costs	41,621	31,121	108,015	81,522
Exploration Costs	48,955	39,429	139,221	130,968
Dry Hole Costs	16,359	19,548	30,265	59,260
Impairments	55,542	85,917	207,938	177,432
Marketing Costs	1,213,652	876,761	3,263,471	2,746,900
Depreciation, Depletion and Amortization	1,040,018	928,800	2,983,111	2,685,719
General and Administrative	96,931	98,654	270,725	257,246
Taxes Other Than Income	204,969	172,438	606,411	458,566
Total	3,332,454	2,771,627	9,374,672	8,043,208
Operating Income	1,786,162	769,769	4,015,171	2,694,887
Other Income (Expense), Net	-21,338	11,168	-16,726	5,867
Income Before Interest Expense and Income Taxes	1,764,824	780,937	3,998,445	2,700,754
Interest Expense	'	'	'	'
Interest Expense, Net	49,704	59,382	151,723	182,950
Income Before Income Taxes	1,715,120	721,555	3,846,722	2,517,804
Income Tax Provision	611,502	259,057	1,375,823	900,889
Net Income	1,103,618	462,498	2,470,899	1,616,915
Net Income Per Share	'	'	'	'
Basic	$2.03	$0.85	$4.55	$3
Diluted	$2.01	$0.85	$4.51	$2.96
Dividends Declared per Common Share	$0.17	$0.09	$0.42	$0.28
Average Number of Common Shares	'	'	'	'
Basic	543,984	540,941	543,086	539,869
Diluted	549,518	547,152	548,401	545,712
Comprehensive Income	'	'	'	'
Net Income	1,103,618	462,498	2,470,899	1,616,915
Other Comprehensive Income (Loss)	'	'	'	'
Foreign Currency Translation Adjustments	-38,886	15,106	-27,438	-18,472
Foreign Currency Swap Transaction	0	1,459	50	2,498
Income Tax Related to Foreign Currency Swap Transaction	0	0	-670	0
Interest Rate Swap Transaction	0	678	777	1,999
Income Tax Related to Interest Rate Swap Transaction	0	-244	-281	-719
Other	23	27	-547	82
Other Comprehensive Income (Loss)	-38,863	17,026	-28,109	-14,612
Comprehensive Income	$1,064,755	$479,524	$2,442,790	$1,602,303

Consolidated_Balance_Sheets

Consolidated Balance Sheets (USD $)	Sep. 30, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Current Assets	'	'
Cash and Cash Equivalents	$1,481,145	$1,318,209
Accounts Receivable, Net	2,009,091	1,658,853
Inventories	672,899	563,268
Assets from Price Risk Management Activities	132,931	8,260
Income Taxes Receivable	17,978	4,797
Deferred Income Taxes	238,258	244,606
Other	332,414	274,022
Total	4,884,716	4,072,015
Property, Plant and Equipment	'	'
Oil and Gas Properties (Successful Efforts Method)	47,912,930	42,821,803
Other Property, Plant and Equipment	3,571,545	2,967,085
Total Property, Plant and Equipment	51,484,475	45,788,888
Less: Accumulated Depreciation, Depletion and Amortization	-22,267,642	-19,640,052
Total Property, Plant and Equipment, Net	29,216,833	26,148,836
Other Assets	399,334	353,387
Total Assets	34,500,883	30,574,238
Current Liabilities	'	'
Accounts Payable	2,775,342	2,254,418
Accrued Taxes Payable	257,948	159,365
Dividends Payable	91,094	50,795
Liabilities from Price Risk Management Activities	0	127,542
Deferred Income Taxes	2,444	0
Current Portion of Long-Term Debt	6,579	6,579
Other	245,339	263,017
Total	3,378,746	2,861,716
Long-Term Debt	5,903,232	5,906,642
Other Liabilities	1,084,461	865,067
Deferred Income Taxes	6,414,546	5,522,354
Commitments and Contingencies (Note 8)	'	'
Stockholders' Equity	'	'
Common Stock, $0.01 Par, 640,000,000 Shares Authorized and 548,601,616 Shares Issued at September 30, 2014 and 546,378,440 Shares Issued at December 31, 2013	205,488	202,732
Additional Paid in Capital	2,785,716	2,646,879
Accumulated Other Comprehensive Income	387,725	415,834
Retained Earnings	14,410,707	12,168,277
Common Stock Held in Treasury, 701,786 Shares at September 30, 2014 and 206,830 Shares at December 31, 2013	-69,738	-15,263
Total Stockholders' Equity	17,719,898	15,418,459
Total Liabilities and Stockholders' Equity	$34,500,883	$30,574,238

Consolidated_Balance_Sheets_Pa

Consolidated Balance Sheets (Parenthetical) (USD $)	Sep. 30, 2014	Dec. 31, 2013
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)	548,601,616	546,378,440
Treasury Stock (in shares)	'	'
Common Stock Held in Treasury, Shares	701,786	206,830

Consolidated_Statements_of_Cas

Consolidated Statements of Cash Flows (USD $)	9 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2014	Sep. 30, 2013
Cash Flows from Operating Activities	'	'
Net Income	$2,470,899	$1,616,915
Items Not Requiring (Providing) Cash	'	'
Depreciation, Depletion and Amortization	2,983,111	2,685,719
Impairments	207,938	177,432
Stock-Based Compensation Expenses	103,636	103,171
Deferred Income Taxes	974,522	657,686
Gains on Asset Dispositions, Net	-75,700	-185,569
Other, Net	17,188	460
Dry Hole Costs	30,265	59,260
Mark-to-Market Commodity Derivative Contracts	'	'
Total (Gains) Losses	-84,119	206,853
Net Cash Received from (Payments for) Settlements of Commodity Derivative Contracts	-188,937	115,323
Excess Tax Benefits from Stock-Based Compensation	-87,827	-50,230
Other, Net	8,701	16,222
Changes in Components of Working Capital and Other Assets and Liabilities	'	'
Accounts Receivable	-341,043	-213,746
Inventories	-119,166	61,147
Accounts Payable	566,753	145,199
Accrued Taxes Payable	176,412	73,197
Other Assets	-61,966	-78,799
Other Liabilities	66,618	10,889
Changes in Components of Working Capital Associated with Investing and Financing Activities	-108,568	-72,945
Net Cash Provided by Operating Activities	6,538,717	5,328,184
Investing Cash Flows	'	'
Additions to Oil and Gas Properties	-5,653,035	-5,084,335
Additions to Other Property, Plant and Equipment	-587,178	-271,136
Proceeds from Sales of Assets	91,335	587,273
Changes in Restricted Cash	-91,238	-68,061
Changes in Components of Working Capital Associated with Investing Activities	108,999	72,916
Net Cash Used in Investing Activities	-6,131,117	-4,763,343
Financing Cash Flows	'	'
Long-Term Debt Borrowings	496,220	0
Long-Term Debt Repayments	-500,000	0
Settlement of Foreign Currency Swap	-31,573	0
Dividends Paid	-187,670	-147,731
Excess Tax Benefits from Stock-Based Compensation	87,827	50,230
Treasury Stock Purchased	-114,824	-55,562
Proceeds from Stock Options Exercised and Employee Stock Purchase Plan	11,740	30,080
Debt Issuance Costs	-895	0
Repayment of Capital Lease Obligation	-4,457	-4,318
Other, Net	-431	29
Net Cash Used in Financing Activities	-244,063	-127,272
Effect of Exchange Rate Changes on Cash	-601	4,813
Increase in Cash and Cash Equivalents	162,936	442,382
Cash and Cash Equivalents at Beginning of Period	1,318,209	876,435
Cash and Cash Equivalents at End of Period	$1,481,145	$1,318,817

Summary_of_Significant_Account

Summary of Significant Accounting Policies	9 Months Ended
	Sep. 30, 2014
Accounting Policies [Abstract]	'
Summary of Significant Accounting Policies [Text Block]	'
	1.    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, 2013, filed on February 24, 2014 (EOG's 2013 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, 2014, are not necessarily indicative of the results to be expected for the full year.
	On February 24, 2014, EOG's Board of Directors (Board) approved a two-for-one stock split in the form of a stock dividend, payable to stockholders of record as of March 17, 2014, and paid on March 31, 2014. All share and per share amounts in the financial statements and these notes have been restated to reflect the two-for-one stock split.
	Recently Issued Accounting Standards. In May 2014, the Financial Accounting Standards Board (FASB) issued Accounting Standards Update (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 will be effective for interim and annual reporting periods beginning after December 15, 2016. Early application is not permitted. EOG is analyzing the requirements of ASU 2014-09 to determine what impact the new standard will have on its consolidated financial statements and related disclosures.

StockBased_Compensation

Stock-Based Compensation	9 Months Ended
	Sep. 30, 2014
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]	'
Stock-Based Compensation	'
	2.    Stock-Based Compensation
	As more fully discussed in Note 6 to the Consolidated Financial Statements included in EOG's 2013 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
		September 30,								September 30,
		2014				2013				2014				2013
	Lease and Well	$	9.7			$	7.2			$	30.4			$	25.4
	Gathering and Processing Costs	0.4				0.3				0.9				0.9
	Exploration Costs	6.7				6.7				20.2				20.6
	General and Administrative	21.7				31.3				52.1				56.3
	Total	$	38.5			$	45.5			$	103.6			$	103.2
	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, restricted stock units, performance units, performance stock and other stock-based awards. At September 30, 2014, approximately 28.8 million common shares remained available for grant under the 2008 Plan. EOG's policy is to issue shares related to the 2008 Plan from either 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 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 $21.2 million and $19.2 million during the three months ended September 30, 2014 and 2013, respectively, and $44.9 million and $40.0 million during the nine months ended September 30, 2014 and 2013, 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, 2014 and 2013 are as follows:
		Stock Options/SARs								ESPP
		Nine Months Ended								Nine Months Ended
		September 30,								September 30,
		2014				2013				2014				2013
	Weighted Average Fair Value of Grants	$	30.77			$	27.34			$	21.27			$	15.07
	Expected Volatility	35.25		%		35.86		%		25.12		%		29.89		%
	Risk-Free Interest Rate	0.95		%		0.78		%		0.08		%		0.11		%
	Dividend Yield	0.6		%		0.4		%		0.5		%		0.6		%
	Expected Life	5.2 years				5.5 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, 2014 and 2013 (stock options and SARs in thousands):
		Nine Months Ended							Nine Months Ended
		September 30, 2014							September 30, 2013
		Number of			Weighted				Number of			Weighted
		Stock			Average				Stock			Average
		Options/SARs			Grant				Options/SARs			Grant
					Price							Price
	Outstanding at January 1	10,452			$	54.43			12,438			$	42.91
	Granted	2,122			101.65				2,234			83.66
	Exercised (1)	(1,351	)		44.52				(3,648	)		34.52
	Forfeited	(226	)		62.95				(168	)		48.38
	Outstanding at September 30 (2)	10,997			$	64.58			10,856			$	54.03
	Vested or Expected to Vest (3)	10,568			$	63.92			10,398			$	53.63
	Exercisable at September 30 (4)	5,573			$	49.23			4,982			$	44.03
	-1	The total intrinsic value of stock options/SARs exercised for the nine months ended September 30, 2014 and 2013 was $78.0 million and $134.2 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, 2014 and 2013 was $384.9 million and $332.3 million, respectively. At September 30, 2014 and 2013, the weighted average remaining contractual life was 4.6 years and 4.8 years, respectively.
	-3	The total intrinsic value of stock options/SARs vested or expected to vest at September 30, 2014 and 2013 was $376.6 million and $322.5 million, respectively. At September 30, 2014 and 2013, the weighted average remaining contractual life was 4.5 years and 4.7 years, respectively.
	-4	The total intrinsic value of stock options/SARs exercisable at September 30, 2014 and 2013 was $277.5 million and $202.4 million, respectively. At September 30, 2014 and 2013, the weighted average remaining contractual life was 3.3 years and 3.5 years, respectively.
	At September 30, 2014, unrecognized compensation expense related to non-vested stock option, SAR and ESPP grants totaled $127.5 million. Such unrecognized expense will be amortized on a straight-line basis over a weighted average period of 2.9 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 $13.9 million and $19.2 million for the three months ended September 30, 2014 and 2013, respectively, and $53.4 million and $55.5 million for the nine months ended September 30, 2014 and 2013, respectively.
	The following table sets forth restricted stock and restricted stock unit transactions for the nine-month periods ended September 30, 2014 and 2013 (shares and units in thousands):
		Nine Months Ended September 30, 2014							Nine Months Ended September 30, 2013
		Number of			Weighted				Number of			Weighted
		Shares and			Average				Shares and			Average
		Units			Grant Date				Units			Grant Date
					Fair Value							Fair Value
	Outstanding at January 1	7,358			$	49.54			7,636			$	45.53
	Granted	1,024			99				1,284			75.93
	Released (1)	(2,540	)		37.92				(1,234	)		52.89
	Forfeited	(220	)		59.36				(160	)		47.7
	Outstanding at September 30 (2)	5,622			$	63.41			7,526			$	49.47
	-1	The total intrinsic value of restricted stock and restricted stock units released for the nine months ended September 30, 2014 and 2013 was $270.0 million and $89.2 million, respectively. The intrinsic value is based upon the closing price of EOG's common stock on the date restricted stock and restricted stock units are released.
	-2	The total intrinsic value of restricted stock and restricted stock units outstanding at September 30, 2014 and 2013 was $556.7 million and $637.0 million, respectively.
	At September 30, 2014, unrecognized compensation expense related to restricted stock and restricted stock units totaled $192.5 million. Such unrecognized expense will be amortized on a straight-line basis over a weighted average period of 2.6 years.
	Performance Units and Performance Stock. EOG grants performance units and/or performance stock to its executive officers. The fair value of the performance units and performance stock is estimated using a Monte Carlo simulation. Stock-based compensation expense related to performance unit and performance stock grants totaled $3.4 million and $7.1 million for the three months ended September 30, 2014 and 2013, respectively, and $5.3 million and $7.7 million for the nine months ended September 30, 2014 and 2013, respectively.
	Weighted average fair values and valuation assumptions used to value performance unit and performance stock grants during the nine-month periods ended September 30, 2014 and 2013 are as follows:
		Nine Months Ended
		September 30,
		2014				2013
	Weighted Average Fair Value of Grants	$	119.27			$	100.34
Expected Volatility	32.18		%		33.63		%
Risk-Free Interest Rate	1.18		%		0.79		%
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 3.26 year zero-coupon risk-free interest rate derived from the Treasury Constant Maturities yield curve on the grant date.
The following table sets forth performance unit and performance stock transactions for the nine-month periods ended September 30, 2014 and 2013 (shares and units in thousands):
	Nine Months Ended							Nine Months Ended
	September 30, 2014							September 30, 2013
	Number of			Weighted				Number of			Weighted
	Shares and			Average				Shares and			Average
	Units			Grant Date				Units			Grant Date
				Fair Value							Fair Value
Outstanding at January 1	261			$	82.18			142			$	67.05
Granted	72			119.27				119			100.34
Released	—			—				—			—
Forfeited	—			—				—			—
Outstanding at September 30 (1)	333			$	90.17			261			$	82.18
-1	The total intrinsic value of performance units and performance stock outstanding at September 30, 2014 and 2013 was $33.0 million and $22.1 million, respectively.
At September 30, 2014, unrecognized compensation expense related to performance units and performance stock totaled $9.4 million. Such unrecognized expense will be amortized on a straight-line basis over a weighted average period of 1.9 years.

Net_Income_Per_Share

Net Income Per Share	9 Months Ended
	Sep. 30, 2014
Earnings Per Share [Abstract]	'
Net Income Per Share [Text Block]	'
	3.    Net Income Per Share
	The following table sets forth the computation of Net Income Per Share for the three-month and nine-month periods ended September 30, 2014 and 2013 (in thousands, except per share data):
		Three Months Ended				Nine Months Ended
		September 30,				September 30,
		2014		2013		2014		2013
	Numerator for Basic and Diluted Earnings Per Share -
	Net Income	$	1,103,618	$	462,498	$	2,470,899	$	1,616,915
	Denominator for Basic Earnings Per Share -
	Weighted Average Shares	543,984		540,941		543,086		539,869
	Potential Dilutive Common Shares -
	Stock Options/SARs	2,760		2,378		2,644		2,196
	Restricted Stock/Units and Performance Units/Stock	2,774		3,833		2,671		3,647
	Denominator for Diluted Earnings Per Share -
	Adjusted Diluted Weighted Average Shares	549,518		547,152		548,401		545,712
	Net Income Per Share
	Basic	$	2.03	$	0.85	$	4.55	$	3
	Diluted	$	2.01	$	0.85	$	4.51	$	2.96
	The diluted earnings per share calculation excludes stock options and SARs that were anti-dilutive. Shares underlying the excluded stock options and SARs totaled 0.2 million and 0.5 million shares for the three months ended September 30, 2014 and 2013, respectively, and 0.2 million shares for each of the nine months ended September 30, 2014 and 2013.

Supplemental_Cash_Flow_Informa

Supplemental Cash Flow Information	9 Months Ended
	Sep. 30, 2014
Supplemental Cash Flow Information [Abstract]	'
Supplemental Cash Flow Information [Text Block]	'
	4.    Supplemental Cash Flow Information
	Net cash paid for interest and income taxes was as follows for the nine-month periods ended September 30, 2014 and 2013 (in thousands):
		Nine Months Ended
		September 30,
		2014		2013
	Interest (1)	$	143,615	$	172,808
	Income Taxes, Net of Refunds Received	$	330,476	$	220,450
	-1	Net of capitalized interest of $43 million and $34 million for the nine months ended September 30, 2014 and 2013, respectively.
	EOG's accrued capital expenditures at September 30, 2014 and 2013 were $960 million and $743 million, respectively.

Segment_Information

Segment Information	9 Months Ended
	Sep. 30, 2014
Segment Reporting [Abstract]	'
Segment Information [Text Block]	'
	5.    Segment Information
	Selected financial information by reportable segment is presented below for the three-month and nine-month periods ended September 30, 2014 and 2013 (in thousands):
		Three Months Ended						Nine Months Ended
		September 30,						September 30,
		2014			2013			2014			2013
	Net Operating Revenues
	United States	$	4,924,226		$	3,337,008		$	12,748,128		$	9,981,084
	Canada	66,765			77,515			229,901			350,398
	Trinidad	123,154			122,280			398,140			390,552
	Other International (1)	4,471			4,593			13,674			16,061
	Total	$	5,118,616		$	3,541,396		$	13,389,843		$	10,738,095
	Operating Income (Loss)
	United States	$	1,767,044		$	747,958		$	3,900,263		$	2,522,127
	Canada	(17,869		)	(21,647		)	(43,711		)	29,683
	Trinidad	61,328			61,087			209,785			213,875
	Other International (1)	(24,341		)	(17,629		)	(51,166		)	(70,798		)
	Total	1,786,162			769,769			4,015,171			2,694,887
	Reconciling Items
	Other Income (Expense), Net	(21,338		)	11,168			(16,726		)	5,867
	Interest Expense, Net	49,704			59,382			151,723			182,950
	Income Before Income Taxes	$	1,715,120		$	721,555		$	3,846,722		$	2,517,804
	(1)    Other International primarily includes EOG's United Kingdom, China and Argentina operations.
	Total assets by reportable segment are presented below at September 30, 2014 and December 31, 2013 (in thousands):
		At			At
		September 30,			December 31,
		2014			2013
	Total Assets
	United States	$	31,578,693		$	27,668,713
	Canada	809,139			880,765
	Trinidad	791,625			986,796
	Other International (1)	1,321,426			1,037,964
	Total	$	34,500,883		$	30,574,238
	(1)    Other International primarily includes EOG's United Kingdom, China and Argentina operations.

Asset_Retirement_Obligations

Asset Retirement Obligations	9 Months Ended
	Sep. 30, 2014
Asset Retirement Obligation [Abstract]	'
Asset Retirement Obligations [Text Block]	'
	6.    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, 2014 and 2013 (in thousands):
		Nine Months Ended
		September 30,
		2014			2013
	Carrying Amount at Beginning of Period	$	761,898		$	665,944
	Liabilities Incurred	91,822			48,556
	Liabilities Settled (1)	(44,805		)	(54,859		)
	Accretion	33,833			26,421
	Revisions	68,785			27,252
	Foreign Currency Translations	(4,178		)	(5,898		)
	Carrying Amount at End of Period	$	907,355		$	707,416
	Current Portion	$	12,528		$	14,329
	Noncurrent Portion	$	894,827		$	693,087
	-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, 2014
Capitalized Exploratory Well Costs [Abstract]	'
Exploratory Well Costs [Text Block]	'
	7.    Exploratory Well Costs
	EOG's net changes in capitalized exploratory well costs for the nine-month period ended September 30, 2014, are presented below (in thousands):
		Nine Months Ended
		September 30, 2014
	Balance at December 31, 2013	$	9,211
	Additions Pending the Determination of Proved Reserves	47,927
	Reclassifications to Proved Properties	(15,285		)
	Costs Charged to Expense	(4,011		)
	Balance at September 30, 2014	$	37,842
	At September 30, 2014, all capitalized exploratory well costs had been capitalized for periods of less than one year.

Commitments_and_Contingencies

Commitments and Contingencies	9 Months Ended
	Sep. 30, 2014
Commitments and Contingencies Disclosure [Abstract]	'
Commitments and Contingencies [Text Block]	'
	8.    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_Ben

Pension and Postretirement Benefits	9 Months Ended
	Sep. 30, 2014
Compensation and Retirement Disclosure [Abstract]	'
Pension and Postretirement Benefits [Text Block]	'
	9.    Pension and Postretirement Benefits
	EOG has defined contribution pension plans in place for most of its employees in the United States, Canada, Trinidad and the United Kingdom, and defined benefit pension plans covering certain of its employees in Canada and Trinidad. For the nine months ended September 30, 2014 and 2013, EOG's total costs recognized for these pension plans were $29.6 million and $28.9 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.

LongTerm_Debt

Long-Term Debt	9 Months Ended
	Sep. 30, 2014
Debt Disclosure [Abstract]	'
Long-Term Debt [Text Block]	'
	10.    Long-Term Debt and Common Stock
	Long-Term Debt. During the nine months ended September 30, 2014 and 2013, EOG utilized commercial paper and short-term borrowings under uncommitted credit facilities, bearing market interest rates, for various corporate financing purposes. EOG had no outstanding commercial paper borrowings or uncommitted credit facility borrowings at September 30, 2014. The average borrowings outstanding under the commercial paper program were $16 million and $23 million during the nine months ended September 30, 2014 and 2013, respectively. The average borrowings outstanding under the uncommitted credit facilities were $0.1 million and zero during the nine months ended September 30, 2014 and 2013, respectively. The weighted average interest rates for commercial paper borrowings during the nine months ended September 30, 2014 and 2013 were 0.25% and 0.30%, respectively, and 0.70% for uncommitted credit facility borrowings during the nine months ended September 30, 2014.
	At September 30, 2014, $500 million aggregate principal amount of 2.95% Senior Notes due 2015 were classified as long-term debt based upon EOG's intent and ability to ultimately replace such amount with other long-term debt.
	On March 21, 2014, EOG closed its sale of the $500 million aggregate principal amount of its 2.45% Senior Notes due 2020 (Notes). Interest on the Notes is payable semi-annually in arrears on April 1 and October 1 of each year, beginning October 1, 2014. Net proceeds from the Notes offering of approximately $496 million were used for general corporate purposes.
	On March 17, 2014, EOG repaid upon maturity the $150 million aggregate principal amount of its 4.75% Subsidiary Debt due 2014 (Subsidiary Debt) and settled the foreign currency swap entered into contemporaneously with the issuance of the Subsidiary Debt for $32 million.
	On February 3, 2014, EOG repaid upon maturity the $350 million aggregate principal amount of its Floating Rate Senior Notes due 2014 (Floating Rate Notes). On the same date, EOG settled the interest rate swap entered into contemporaneously with the issuance of the Floating Rate Notes for $0.8 million.
	EOG currently has a $2.0 billion unsecured Revolving Credit Agreement (Agreement) with domestic and foreign lenders. The Agreement matures on October 11, 2016, and includes an option for EOG to extend, on up to two occasions, the term for successive one-year periods, subject to, among certain other terms and conditions, the consent of the banks holding greater than 50% of the commitments then outstanding under the Agreement. At September 30, 2014, there were no borrowings or letters of credit outstanding under the Agreement. Advances under the Agreement accrue interest based, at EOG's option, on either the London InterBank Offered Rate (LIBOR) plus an applicable margin (Eurodollar rate), or the base rate (as defined in the Agreement) plus an applicable margin. At September 30, 2014, the Eurodollar rate and applicable base rate, had there been any amounts borrowed under the Agreement, would have been 1.03% and 3.25%, respectively.
	Restricted Cash. In order to comply with the Canadian Alberta Energy Regulator's requirements to post financial security for well abandonment obligations, EOG Resources Canada Inc. (EOGRC) established a 160 million Canadian dollar letter of credit facility (subsequently increased to 190 million Canadian dollars), which matures on May 29, 2018, with Royal Bank of Canada (RBC) as the lender. The letter of credit facility requires EOGRC to deposit cash, in an amount equal to all outstanding letters of credit under such facility, in a cash collateral account at RBC. At September 30, 2014, the balance in this account was 170 million Canadian dollars (152 million United States dollars).
	Common Stock. On August 5, 2014, the Board increased the quarterly cash dividend on the common stock from the previous $0.125 per share to $0.1675 per share, effective beginning with the dividend to be paid on October 31, 2014, to stockholders of record as of October 17, 2014.

Fair_Value_Measurements

Fair Value Measurements	9 Months Ended
	Sep. 30, 2014
Fair Value Disclosures [Abstract]	'
Fair Value Measurements [Text Block]	'
	11.    Fair Value Measurements
	As more fully discussed in Note 12 to the Consolidated Financial Statements included in EOG's 2013 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, 2014 and December 31, 2013 (in millions):
		Fair Value Measurements Using:
		Quoted		Significant		Significant		Total
		Prices in		Other		Unobservable
		Active		Observable		Inputs
		Markets		Inputs		(Level 3)
		(Level 1)		(Level 2)
	At September 30, 2014
	Financial Assets
	Natural Gas Options/Swaptions	$	—	$	32	$	—	$	32
	Crude Oil Swaps	—		84		—		84
	Crude Oil Options/Swaptions	—		23		—		23
	At December 31, 2013
	Financial Assets
	Natural Gas Options/Swaptions	$	—	$	8	$	—	$	8
	Financial Liabilities
	Crude Oil Swaps	$	—	$	17	$	—	$	17
	Crude Oil Options/Swaptions	—		110		—		110
	Foreign Currency Rate Swap	—		40		—		40
	Interest Rate Swap	—		1		—		1
	The estimated fair value of crude oil and natural gas derivative contracts (including options/swaptions) and the interest rate swap contract was based upon forward commodity price and interest rate curves based on quoted market prices. The estimated fair value of the foreign currency rate swap was based upon forward currency rates. 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 $152 million were written down to their fair value of $68 million, resulting in pretax impairment charges of $84 million for the nine months ended September 30, 2014. Included in the $84 million pretax impairment charges are $58 million of impairments of proved oil and gas properties and other assets for which EOG utilized an accepted offer from a third-party purchaser as the basis for determining fair value. Significant Level 3 inputs associated with the calculation of discounted cash flows used in the impairment analysis include EOG's estimate of future crude oil and natural gas prices, production costs, development expenditures, anticipated production of proved reserves, appropriate risk-adjusted discount rates and other relevant data.
	Fair Value of Debt. At both September 30, 2014 and December 31, 2013, EOG had outstanding $5,890 million aggregate principal amount of debt, which had estimated fair values of approximately $6,243 million and $6,222 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, 2014
Derivative Instruments and Hedging Activities Disclosure [Abstract]	'
Risk Management Activities [Text Block]	'
	12.    Risk Management Activities
	Commodity Price Risk. As more fully discussed in Note 11 to the Consolidated Financial Statements included in EOG's 2013 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. In addition to financial transactions, from time to time, EOG is a party to various physical commodity contracts for the sale of hydrocarbons that cover varying periods of time and have varying pricing provisions. These physical commodity contracts qualify for the normal purchases and normal sales exception and, therefore, are not subject to hedge accounting or mark-to-market accounting. The financial impact of physical commodity contracts is included in revenues at the time of settlement, which in turn affects average realized hydrocarbon prices.
	Commodity Derivative Contracts. Presented below is a comprehensive summary of EOG's crude oil derivative contracts at September 30, 2014, with notional volumes expressed in barrels per day (Bbld) and prices expressed in dollars per barrel ($/Bbl).
	Crude Oil Derivative Contracts
		Volume		Weighted Average Price
		(Bbld)		($/Bbl)
	2014
	January 2014 (closed)	156,000		$	96.3
	February 2014 (closed)	171,000		96.35
	March 1, 2014 through June 30, 2014 (closed)	181,000		96.55
	July 1, 2014 through August 31, 2014 (closed)	202,000		96.34
	September 2014 (closed)	192,000		96.15
	October 1, 2014 through December 31, 2014	192,000		96.15
	2015 (1)
	January 1, 2015 through June 30, 2015	20,000		$	91.41
	July 1, 2015 through December 31, 2015	10,000		89.98
	-1	EOG has entered into crude oil derivative contracts which give counterparties the option to extend certain current derivative contracts for additional six-month periods. Options covering a notional volume of 69,000 Bbld are exercisable on or about December 31, 2014. If the counterparties exercise all such options, the notional volume of EOG's existing crude oil derivative contracts will increase by 69,000 Bbld at an average price of $95.20 per barrel for each month during the period January 1, 2015 through June 30, 2015. Options covering a notional volume of 10,000 Bbld are exercisable on June 30, 2015. If the counterparties exercise all such options, the notional volume of EOG's existing crude oil derivative contracts will increase by 10,000 Bbld at an average price of $92.85 per barrel for each month during the period July 1, 2015 through December 31, 2015.
	Presented below is a comprehensive summary of EOG's natural gas derivative contracts at September 30, 2014, with notional volumes expressed in million British thermal units (MMBtu) per day (MMBtud) and prices expressed in dollars per MMBtu ($/MMBtu).
	Natural Gas Derivative Contracts
		Volume (MMBtud)		Weighted Average Price
				($/MMBtu)
	2014 (1)
	January 2014 (closed)	230,000		$	4.51
	February 2014 (closed)	710,000		4.57
	March 2014 (closed)	810,000		4.6
	April 2014 (closed)	465,000		4.52
	May 2014 (closed)	685,000		4.55
	June 2014 (closed)	515,000		4.52
	July 2014 (closed)	340,000		4.55
	August 1, 2014 through October 31, 2014 (closed)	330,000		4.55
	November 1, 2014 through December 31, 2014	330,000		4.55
	2015 (2)
	January 1, 2015 through December 31, 2015	175,000		$	4.51
	-1	EOG has entered into natural gas derivative contracts which give counterparties the option of entering into derivative contracts at future dates. All such options are exercisable monthly up until the settlement date of each monthly contract. If the counterparties exercise all such options, the notional volume of EOG's existing natural gas derivative contracts will increase by 480,000 MMBtud at an average price of $4.63 per MMBtu for each month during the period November 1, 2014 through December 31, 2014.
	-2	EOG has entered into natural gas derivative contracts which give counterparties the option of entering into derivative contracts at future dates. All such options are exercisable monthly up until the settlement date of each monthly contract. If the counterparties exercise all such options, the notional volume of EOG's existing natural gas derivative contracts will increase by 175,000 MMBtud at an average price of $4.51 per MMBtu for each month during the period January 1, 2015 through December 31, 2015.
	Foreign Currency Exchange Rate Derivative. EOG was party to a foreign currency aggregate swap with multiple banks to eliminate any exchange rate impacts that may have resulted from the Subsidiary Debt. The foreign currency swap expired and was settled contemporaneously with the repayment upon maturity of the Subsidiary Debt on March 17, 2014 (see Note 10).
	Interest Rate Derivative. EOG was party to an interest rate swap with a counterparty bank. The interest rate swap was entered into in order to mitigate EOG's exposure to volatility in interest rates related to its Floating Rate Notes. The interest rate swap expired and was settled contemporaneously with the repayment upon maturity of the Floating Rate Notes on February 3, 2014 (see Note 10).
	The following table sets forth the amounts and classification of EOG's outstanding derivative financial instruments at September 30, 2014 and December 31, 2013. Certain amounts may be presented on a net basis on the 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	September 30,		December 31,
				2014		2013
	Asset Derivatives
	Crude oil and natural gas derivative contracts -
	Current portion		Assets from Price Risk Management Activities (1)	$	133	$	8
	Noncurrent portion		Other Assets (2)	$	6	$	—
	Liability Derivatives
	Crude oil and natural gas derivative contracts -
	Current portion		Liabilities from Price Risk Management	$	—	$	127
			Activities (3)
	Noncurrent portion		Other Liabilities (4)	$	—	$	—
	Foreign currency swap -
	Current portion		Current Liabilities - Other	$	—	$	40
	Interest rate swap -
	Current portion		Current Liabilities - Other	$	—	$	1
	-1	The current portion of Assets from Price Risk Management Activities consists of gross assets of $147 million, partially offset by gross liabilities of $14 million at September 30, 2014, and gross assets of $18 million, partially offset by gross liabilities of $10 million at December 31, 2013.
	-2	The noncurrent portion of Assets from Price Risk Management Activities consists of gross assets of $10 million, partially offset by gross liabilities of $4 million at September 30, 2014.
	-3	The current portion of Liabilities from Price Risk Management Activities consists of gross liabilities of $14 million, offset by gross assets of $14 million at September 30, 2014, and gross liabilities of $137 million, partially offset by gross assets of $10 million at December 31, 2013.
	-4	The noncurrent portion of Liabilities from Price Risk Management Activities consists of gross liabilities of $4 million, offset by gross assets of $4 million at September 30, 2014.
	Credit Risk. Notional contract amounts are used to express the magnitude of commodity price, foreign currency and interest rate swap agreements. 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 outstanding 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 September 30, 2014 and December 31, 2013. EOG held collateral of $10 million and zero at September 30, 2014 and December 31, 2013, respectively, and had no collateral posted at September 30, 2014 and December 31, 2013.

Divestitures

Divestitures	9 Months Ended
	Sep. 30, 2014
Discontinued Operations and Disposal Groups [Abstract]	'
Divestitures [Text Block]	'
	13.  Divestitures
	During the first nine months of 2014, EOG received proceeds of approximately $91 million from sales of producing properties and acreage primarily in the Mid-Continent area, the Upper Gulf Coast region, Canada and the Rocky Mountain area. During the first nine months of 2013, EOG received proceeds of approximately $587 million primarily from sales of its entire interest in the planned Kitimat project, undeveloped acreage in the Horn River Basin in Canada and producing properties and acreage in the Upper Gulf Coast region, the Mid-Continent area and the Permian Basin.

StockBased_Compensation_Tables

Stock-Based Compensation (Tables)	9 Months Ended
	Sep. 30, 2014
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
		September 30,								September 30,
		2014				2013				2014				2013
	Lease and Well	$	9.7			$	7.2			$	30.4			$	25.4
	Gathering and Processing Costs	0.4				0.3				0.9				0.9
	Exploration Costs	6.7				6.7				20.2				20.6
	General and Administrative	21.7				31.3				52.1				56.3
	Total	$	38.5			$	45.5			$	103.6			$	103.2
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, 2014 and 2013 are as follows:
		Stock Options/SARs								ESPP
		Nine Months Ended								Nine Months Ended
		September 30,								September 30,
		2014				2013				2014				2013
	Weighted Average Fair Value of Grants	$	30.77			$	27.34			$	21.27			$	15.07
	Expected Volatility	35.25		%		35.86		%		25.12		%		29.89		%
	Risk-Free Interest Rate	0.95		%		0.78		%		0.08		%		0.11		%
	Dividend Yield	0.6		%		0.4		%		0.5		%		0.6		%
	Expected Life	5.2 years				5.5 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, 2014 and 2013 (stock options and SARs in thousands):
		Nine Months Ended							Nine Months Ended
		September 30, 2014							September 30, 2013
		Number of			Weighted				Number of			Weighted
		Stock			Average				Stock			Average
		Options/SARs			Grant				Options/SARs			Grant
					Price							Price
	Outstanding at January 1	10,452			$	54.43			12,438			$	42.91
	Granted	2,122			101.65				2,234			83.66
	Exercised (1)	(1,351	)		44.52				(3,648	)		34.52
	Forfeited	(226	)		62.95				(168	)		48.38
	Outstanding at September 30 (2)	10,997			$	64.58			10,856			$	54.03
	Vested or Expected to Vest (3)	10,568			$	63.92			10,398			$	53.63
	Exercisable at September 30 (4)	5,573			$	49.23			4,982			$	44.03
	-1	The total intrinsic value of stock options/SARs exercised for the nine months ended September 30, 2014 and 2013 was $78.0 million and $134.2 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, 2014 and 2013 was $384.9 million and $332.3 million, respectively. At September 30, 2014 and 2013, the weighted average remaining contractual life was 4.6 years and 4.8 years, respectively.
	-3	The total intrinsic value of stock options/SARs vested or expected to vest at September 30, 2014 and 2013 was $376.6 million and $322.5 million, respectively. At September 30, 2014 and 2013, the weighted average remaining contractual life was 4.5 years and 4.7 years, respectively.
	-4	The total intrinsic value of stock options/SARs exercisable at September 30, 2014 and 2013 was $277.5 million and $202.4 million, respectively. At September 30, 2014 and 2013, the weighted average remaining contractual life was 3.3 years and 3.5 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, 2014 and 2013 (shares and units in thousands):
		Nine Months Ended September 30, 2014							Nine Months Ended September 30, 2013
		Number of			Weighted				Number of			Weighted
		Shares and			Average				Shares and			Average
		Units			Grant Date				Units			Grant Date
					Fair Value							Fair Value
	Outstanding at January 1	7,358			$	49.54			7,636			$	45.53
	Granted	1,024			99				1,284			75.93
	Released (1)	(2,540	)		37.92				(1,234	)		52.89
	Forfeited	(220	)		59.36				(160	)		47.7
	Outstanding at September 30 (2)	5,622			$	63.41			7,526			$	49.47
	-1	The total intrinsic value of restricted stock and restricted stock units released for the nine months ended September 30, 2014 and 2013 was $270.0 million and $89.2 million, respectively. The intrinsic value is based upon the closing price of EOG's common stock on the date restricted stock and restricted stock units are released.
	-2	The total intrinsic value of restricted stock and restricted stock units outstanding at September 30, 2014 and 2013 was $556.7 million and $637.0 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 during the nine-month periods ended September 30, 2014 and 2013 are as follows:
		Nine Months Ended
		September 30,
		2014				2013
	Weighted Average Fair Value of Grants	$	119.27			$	100.34
	Expected Volatility	32.18		%		33.63		%
	Risk-Free Interest Rate	1.18		%		0.79		%
Performance Units and Performance Stock Transactions	'
	The following table sets forth performance unit and performance stock transactions for the nine-month periods ended September 30, 2014 and 2013 (shares and units in thousands):
		Nine Months Ended							Nine Months Ended
		September 30, 2014							September 30, 2013
		Number of			Weighted				Number of			Weighted
		Shares and			Average				Shares and			Average
		Units			Grant Date				Units			Grant Date
					Fair Value							Fair Value
	Outstanding at January 1	261			$	82.18			142			$	67.05
	Granted	72			119.27				119			100.34
	Released	—			—				—			—
	Forfeited	—			—				—			—
	Outstanding at September 30 (1)	333			$	90.17			261			$	82.18
	-1	The total intrinsic value of performance units and performance stock outstanding at September 30, 2014 and 2013 was $33.0 million and $22.1 million, respectively.

Net_Income_Per_Share_Tables

Net Income Per Share (Tables)	9 Months Ended
	Sep. 30, 2014
Earnings Per Share [Abstract]	'
Computation of Net Income Per Share	'
	The following table sets forth the computation of Net Income Per Share for the three-month and nine-month periods ended September 30, 2014 and 2013 (in thousands, except per share data):
		Three Months Ended				Nine Months Ended
		September 30,				September 30,
		2014		2013		2014		2013
	Numerator for Basic and Diluted Earnings Per Share -
	Net Income	$	1,103,618	$	462,498	$	2,470,899	$	1,616,915
	Denominator for Basic Earnings Per Share -
	Weighted Average Shares	543,984		540,941		543,086		539,869
	Potential Dilutive Common Shares -
	Stock Options/SARs	2,760		2,378		2,644		2,196
	Restricted Stock/Units and Performance Units/Stock	2,774		3,833		2,671		3,647
	Denominator for Diluted Earnings Per Share -
	Adjusted Diluted Weighted Average Shares	549,518		547,152		548,401		545,712
	Net Income Per Share
	Basic	$	2.03	$	0.85	$	4.55	$	3
	Diluted	$	2.01	$	0.85	$	4.51	$	2.96

Supplemental_Cash_Flow_Informa1

Supplemental Cash Flow Information (Tables)	9 Months Ended
	Sep. 30, 2014
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, 2014 and 2013 (in thousands):
		Nine Months Ended
		September 30,
		2014		2013
	Interest (1)	$	143,615	$	172,808
	Income Taxes, Net of Refunds Received	$	330,476	$	220,450
	-1	Net of capitalized interest of $43 million and $34 million for the nine months ended September 30, 2014 and 2013, respectively.

Segment_Information_Tables

Segment Information (Tables)	9 Months Ended
	Sep. 30, 2014
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, 2014 and 2013 (in thousands):
		Three Months Ended						Nine Months Ended
		September 30,						September 30,
		2014			2013			2014			2013
	Net Operating Revenues
	United States	$	4,924,226		$	3,337,008		$	12,748,128		$	9,981,084
	Canada	66,765			77,515			229,901			350,398
	Trinidad	123,154			122,280			398,140			390,552
	Other International (1)	4,471			4,593			13,674			16,061
	Total	$	5,118,616		$	3,541,396		$	13,389,843		$	10,738,095
	Operating Income (Loss)
	United States	$	1,767,044		$	747,958		$	3,900,263		$	2,522,127
	Canada	(17,869		)	(21,647		)	(43,711		)	29,683
	Trinidad	61,328			61,087			209,785			213,875
	Other International (1)	(24,341		)	(17,629		)	(51,166		)	(70,798		)
	Total	1,786,162			769,769			4,015,171			2,694,887
	Reconciling Items
	Other Income (Expense), Net	(21,338		)	11,168			(16,726		)	5,867
	Interest Expense, Net	49,704			59,382			151,723			182,950
	Income Before Income Taxes	$	1,715,120		$	721,555		$	3,846,722		$	2,517,804
	(1)    Other International primarily includes EOG's United Kingdom, China and Argentina operations.
Assets by Reportable Segment	'
	Total assets by reportable segment are presented below at September 30, 2014 and December 31, 2013 (in thousands):
		At			At
		September 30,			December 31,
		2014			2013
	Total Assets
	United States	$	31,578,693		$	27,668,713
	Canada	809,139			880,765
	Trinidad	791,625			986,796
	Other International (1)	1,321,426			1,037,964
	Total	$	34,500,883		$	30,574,238
	(1)    Other International primarily includes EOG's United Kingdom, China and Argentina operations.

Asset_Retirement_Obligations_T

Asset Retirement Obligations (Tables)	9 Months Ended
	Sep. 30, 2014
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, 2014 and 2013 (in thousands):
		Nine Months Ended
		September 30,
		2014			2013
	Carrying Amount at Beginning of Period	$	761,898		$	665,944
	Liabilities Incurred	91,822			48,556
	Liabilities Settled (1)	(44,805		)	(54,859		)
	Accretion	33,833			26,421
	Revisions	68,785			27,252
	Foreign Currency Translations	(4,178		)	(5,898		)
	Carrying Amount at End of Period	$	907,355		$	707,416
	Current Portion	$	12,528		$	14,329
	Noncurrent Portion	$	894,827		$	693,087
	-1	Includes settlements related to asset sales.

Exploratory_Well_Costs_Tables

Exploratory Well Costs (Tables)	9 Months Ended
	Sep. 30, 2014
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, 2014, are presented below (in thousands):
		Nine Months Ended
		September 30, 2014
	Balance at December 31, 2013	$	9,211
	Additions Pending the Determination of Proved Reserves	47,927
	Reclassifications to Proved Properties	(15,285		)
	Costs Charged to Expense	(4,011		)
	Balance at September 30, 2014	$	37,842

Fair_Value_Measurements_Tables

Fair Value Measurements (Tables)	9 Months Ended
	Sep. 30, 2014
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 September 30, 2014 and December 31, 2013 (in millions):
		Fair Value Measurements Using:
		Quoted		Significant		Significant		Total
		Prices in		Other		Unobservable
		Active		Observable		Inputs
		Markets		Inputs		(Level 3)
		(Level 1)		(Level 2)
	At September 30, 2014
	Financial Assets
	Natural Gas Options/Swaptions	$	—	$	32	$	—	$	32
	Crude Oil Swaps	—		84		—		84
	Crude Oil Options/Swaptions	—		23		—		23
	At December 31, 2013
	Financial Assets
	Natural Gas Options/Swaptions	$	—	$	8	$	—	$	8
	Financial Liabilities
	Crude Oil Swaps	$	—	$	17	$	—	$	17
	Crude Oil Options/Swaptions	—		110		—		110
	Foreign Currency Rate Swap	—		40		—		40
	Interest Rate Swap	—		1		—		1

Risk_Management_Activities_Tab

Risk Management Activities (Tables)	9 Months Ended
	Sep. 30, 2014
Derivative Instruments and Hedging Activities Disclosure [Abstract]	'
Commodity Derivative Contracts - Crude Oil	'
	Presented below is a comprehensive summary of EOG's crude oil derivative contracts at September 30, 2014, with notional volumes expressed in barrels per day (Bbld) and prices expressed in dollars per barrel ($/Bbl).
	Crude Oil Derivative Contracts
		Volume		Weighted Average Price
		(Bbld)		($/Bbl)
	2014
	January 2014 (closed)	156,000		$	96.3
	February 2014 (closed)	171,000		96.35
	March 1, 2014 through June 30, 2014 (closed)	181,000		96.55
	July 1, 2014 through August 31, 2014 (closed)	202,000		96.34
	September 2014 (closed)	192,000		96.15
	October 1, 2014 through December 31, 2014	192,000		96.15
	2015 (1)
	January 1, 2015 through June 30, 2015	20,000		$	91.41
	July 1, 2015 through December 31, 2015	10,000		89.98
	-1	EOG has entered into crude oil derivative contracts which give counterparties the option to extend certain current derivative contracts for additional six-month periods. Options covering a notional volume of 69,000 Bbld are exercisable on or about December 31, 2014. If the counterparties exercise all such options, the notional volume of EOG's existing crude oil derivative contracts will increase by 69,000 Bbld at an average price of $95.20 per barrel for each month during the period January 1, 2015 through June 30, 2015. Options covering a notional volume of 10,000 Bbld are exercisable on June 30, 2015. If the counterparties exercise all such options, the notional volume of EOG's existing crude oil derivative contracts will increase by 10,000 Bbld at an average price of $92.85 per barrel for each month during the period July 1, 2015 through December 31, 2015.
Commodity Derivative Contracts - Natural Gas	'
	Presented below is a comprehensive summary of EOG's natural gas derivative contracts at September 30, 2014, with notional volumes expressed in million British thermal units (MMBtu) per day (MMBtud) and prices expressed in dollars per MMBtu ($/MMBtu).
	Natural Gas Derivative Contracts
		Volume (MMBtud)		Weighted Average Price
				($/MMBtu)
	2014 (1)
	January 2014 (closed)	230,000		$	4.51
	February 2014 (closed)	710,000		4.57
	March 2014 (closed)	810,000		4.6
	April 2014 (closed)	465,000		4.52
	May 2014 (closed)	685,000		4.55
	June 2014 (closed)	515,000		4.52
	July 2014 (closed)	340,000		4.55
	August 1, 2014 through October 31, 2014 (closed)	330,000		4.55
	November 1, 2014 through December 31, 2014	330,000		4.55
	2015 (2)
	January 1, 2015 through December 31, 2015	175,000		$	4.51
	-1	EOG has entered into natural gas derivative contracts which give counterparties the option of entering into derivative contracts at future dates. All such options are exercisable monthly up until the settlement date of each monthly contract. If the counterparties exercise all such options, the notional volume of EOG's existing natural gas derivative contracts will increase by 480,000 MMBtud at an average price of $4.63 per MMBtu for each month during the period November 1, 2014 through December 31, 2014.
	-2	EOG has entered into natural gas derivative contracts which give counterparties the option of entering into derivative contracts at future dates. All such options are exercisable monthly up until the settlement date of each monthly contract. If the counterparties exercise all such options, the notional volume of EOG's existing natural gas derivative contracts will increase by 175,000 MMBtud at an average price of $4.51 per MMBtu for each month during the period January 1, 2015 through December 31, 2015.
Schedule of Derivative Instruments In Statement Of Financial Position, Fair Value	'
	The following table sets forth the amounts and classification of EOG's outstanding derivative financial instruments at September 30, 2014 and December 31, 2013. Certain amounts may be presented on a net basis on the 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	September 30,		December 31,
				2014		2013
	Asset Derivatives
	Crude oil and natural gas derivative contracts -
	Current portion		Assets from Price Risk Management Activities (1)	$	133	$	8
	Noncurrent portion		Other Assets (2)	$	6	$	—
	Liability Derivatives
	Crude oil and natural gas derivative contracts -
	Current portion		Liabilities from Price Risk Management	$	—	$	127
			Activities (3)
	Noncurrent portion		Other Liabilities (4)	$	—	$	—
	Foreign currency swap -
	Current portion		Current Liabilities - Other	$	—	$	40
	Interest rate swap -
	Current portion		Current Liabilities - Other	$	—	$	1
	-1	The current portion of Assets from Price Risk Management Activities consists of gross assets of $147 million, partially offset by gross liabilities of $14 million at September 30, 2014, and gross assets of $18 million, partially offset by gross liabilities of $10 million at December 31, 2013.
	-2	The noncurrent portion of Assets from Price Risk Management Activities consists of gross assets of $10 million, partially offset by gross liabilities of $4 million at September 30, 2014.
	-3	The current portion of Liabilities from Price Risk Management Activities consists of gross liabilities of $14 million, offset by gross assets of $14 million at September 30, 2014, and gross liabilities of $137 million, partially offset by gross assets of $10 million at December 31, 2013.
	-4	The noncurrent portion of Liabilities from Price Risk Management Activities consists of gross liabilities of $4 million, offset by gross assets of $4 million at September 30, 2014.

StockBased_Compensation_Detail

Stock-Based Compensation (Details) (USD $)	3 Months Ended				9 Months Ended
In Millions, except Share data, unless otherwise specified	Sep. 30, 2014		Sep. 30, 2013		Sep. 30, 2014		Sep. 30, 2013
Stock based compensation by job function [Line Items]	'		'		'		'
Compensation expense related to the company's stock-based compensation plans	$38.50		$45.50		$103.60		$103.20
Common Shares Available for Grant	28,800,000		'		28,800,000		'
Stock Options/SARs and Employee Stock Purchase Plan (ESPP) Disclosures [Line Items]	'		'		'		'
Stock-based compensation expense related to stock options, SAR and ESPP grants	21.2		19.2		44.9		40
Share-Based Compensation Arrangement By Share Based Payment Award Stock Option/SARs, ESPP, Restricted Stock/Units and Performance Units/Stock [Abstract]	'		'		'		'
Unrecognized compensation expense	127.5		'		127.5		'
Weighted average period over which unrecognized compensation expense will be recognized (in years)	'		'		'2 years 10 months 24 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)	'		'		$30.77		$27.34
Expected Volatility (in hundredths)	'		'		35.25%		35.86%
Risk-Free Interest Rate (in hundredths)	'		'		0.95%		0.78%
Dividend Yield (in hundredths)	'		'		0.60%		0.40%
Expected Life (in years)	'		'		'5 years 2 months 12 days		'5 years 6 months
Stock Options and SARs Rollforward [Abstract]	'		'		'		'
Outstanding at January 1 (in shares)	'		'		10,452,000		12,438,000
Granted (in shares)	'		'		2,122,000		2,234,000
Exercised (1) (in shares)	'		'		-1,351,000	[1]	-3,648,000	[1]
Forfeited (in shares)	'		'		-226,000		-168,000
Outstanding at September 30 (2) (in shares)	10,997,000	[2]	10,856,000	[2]	10,997,000	[2]	10,856,000	[2]
Share-Based Compensation Arrangement By Share Based Payment Award Stock Option/SARs, ESPP, Restricted Stock/Units and Performance Units/Stock [Abstract]	'		'		'		'
Outstanding at January 1 (price per share)	'		'		$54.43		$42.91
Granted (price per share)	'		'		$101.65		$83.66
Exercised (1) (price per share)	'		'		$44.52	[1]	$34.52	[1]
Forfeited (price per share)	'		'		$62.95		$48.38
Outstanding at September 30 (2) (price per share)	$64.58	[2]	$54.03	[2]	$64.58	[2]	$54.03	[2]
Stock Options and SARs Vested or Expected to Vest (in shares)	10,568,000	[3]	10,398,000	[3]	10,568,000	[3]	10,398,000	[3]
Weighted average grant price for stock options/SARs vested or expected to vest (price per share)	$63.92	[3]	$53.63	[3]	$63.92	[3]	$53.63	[3]
Stock Options and SARs Exercisable at September 30 (in shares)	5,573,000	[4]	4,982,000	[4]	5,573,000	[4]	4,982,000	[4]
Stock Options and SARs Exercisable at September 30 (price per share)	$49.23	[4]	$44.03	[4]	$49.23	[4]	$44.03	[4]
Intrinsic value of stock options/SARs exercised during the period	'		'		78		134.2
Aggregate intrinsic value for outstanding stock options and SARs	384.9		332.3		384.9		332.3
Weighted average remaining contractual life for stock options/SARs outstanding (in years)	'		'		'4 years 7 months 6 days		'4 years 9 months 18 days
Aggregate intrinsic value of stock options/SARs vested or expected to vest	376.6		322.5		376.6		322.5
Weighted average remaining contractual life for stock options/SARs vested or expected to vest (in years)	'		'		'4 years 6 months		'4 years 8 months 12 days
Aggregate intrinsic value for exercisable units	277.5		202.4		277.5		202.4
Weighted average remaining contractual life for exercisable options/SARs (in years)	'		'		'3 years 3 months 18 days		'3 years 6 months
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)	'		'		$21.27		$15.07
Expected Volatility (in hundredths)	'		'		25.12%		29.89%
Risk-Free Interest Rate (in hundredths)	'		'		0.08%		0.11%
Dividend Yield (in hundredths)	'		'		0.50%		0.60%
Expected Life (in years)	'		'		'6 months		'6 months
Restricted Stock and Restricted Stock Units [Member]	'		'		'		'
Share-Based Compensation Arrangement By Share Based Payment Award Stock Option/SARs, ESPP, Restricted Stock/Units and Performance Units/Stock [Abstract]	'		'		'		'
Unrecognized compensation expense	192.5		'		192.5		'
Weighted average period over which unrecognized compensation expense will be recognized (in years)	'		'		'2 years 7 months 6 days		'
Share-Based Compensation Arrangement By Restricted Stock And Restricted Stock Units Compensation Cost	13.9		19.2		53.4		55.5
Restricted Stock/Restricted Stock Units and Performance Units/Performance Stock [Roll Forward]	'		'		'		'
Outstanding at January 1 (in shares)	'		'		7,358,000		7,636,000
Granted (in shares)	'		'		1,024,000		1,284,000
Released (in shares)	'		'		-2,540,000	[5]	-1,234,000	[5]
Forfeited (in shares)	'		'		-220,000		-160,000
Outstanding at September 30 (1) (in shares)	5,622,000	[6]	7,526,000	[6]	5,622,000	[6]	7,526,000	[6]
Weighted Average Grant Price Restricted Stock and Restricted Stock Units/Performance Units and Performance Stock [Roll Forward]	'		'		'		'
Outstanding at January 1 (price per share)	'		'		$49.54		$45.53
Granted (price per share)	'		'		$99		$75.93
Released (price per share)	'		'		$37.92	[5]	$52.89	[5]
Forfeited (price per share)	'		'		$59.36		$47.70
Outstanding at September 30 (1) (price per share)	$63.41	[6]	$49.47	[6]	$63.41	[6]	$49.47	[6]
Intrinsic value of restricted stock and restricted stock units released during the year	'		'		270		89.2
Aggregate intrinsic value of stock and units outstanding	556.7		637		556.7		637
Performance Units and Performance Stock [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)	'		'		$119.27		$100.34
Expected Volatility (in hundredths)	'		'		32.18%		33.63%
Risk-Free Interest Rate (in hundredths)	'		'		1.18%		0.79%
Share-Based Compensation Arrangement By Share Based Payment Award Stock Option/SARs, ESPP, Restricted Stock/Units and Performance Units/Stock [Abstract]	'		'		'		'
Unrecognized compensation expense	9.4		'		9.4		'
Weighted average period over which unrecognized compensation expense will be recognized (in years)	'		'		'1 year 10 months 24 days		'
Restricted Stock/Restricted Stock Units and Performance Units/Performance Stock [Roll Forward]	'		'		'		'
Outstanding at January 1 (in shares)	'		'		261,000		142,000
Granted (in shares)	'		'		72,000		119,000
Released (in shares)	'		'		0		0
Forfeited (in shares)	'		'		0		0
Outstanding at September 30 (1) (in shares)	333,000	[7]	261,000	[7]	333,000	[7]	261,000	[7]
Weighted Average Grant Price Restricted Stock and Restricted Stock Units/Performance Units and Performance Stock [Roll Forward]	'		'		'		'
Outstanding at January 1 (price per share)	'		'		$82.18		$67.05
Granted (price per share)	'		'		$119.27		$100.34
Released (price per share)	'		'		$0		$0
Forfeited (price per share)	'		'		$0		$0
Outstanding at September 30 (1) (price per share)	$90.17	[7]	$82.18	[7]	$90.17	[7]	$82.18	[7]
Aggregate intrinsic value of stock and units outstanding	33		22.1		33		22.1
Performance Units and Performance Stock [Abstract]	'		'		'		'
Share-Based Compensation Arrangement By Performance Units and Performance Stock Compensation Cost	3.4		7.1		5.3		7.7
Term Of Zero- Coupon Risk- Free Interest Rate In Years Derived From Treasury Constant Maturities Yield Curve	'		'		'3 years 3 months 4 days		'
Lease And Well [Member]	'		'		'		'
Stock based compensation by job function [Line Items]	'		'		'		'
Compensation expense related to the company's stock-based compensation plans	9.7		7.2		30.4		25.4
Gathering And Processing Costs [Member]	'		'		'		'
Stock based compensation by job function [Line Items]	'		'		'		'
Compensation expense related to the company's stock-based compensation plans	0.4		0.3		0.9		0.9
Exploration Costs [Member]	'		'		'		'
Stock based compensation by job function [Line Items]	'		'		'		'
Compensation expense related to the company's stock-based compensation plans	6.7		6.7		20.2		20.6
General And Administrative [Member]	'		'		'		'
Stock based compensation by job function [Line Items]	'		'		'		'
Compensation expense related to the company's stock-based compensation plans	$21.70		$31.30		$52.10		$56.30
[1]	(1)The total intrinsic value of stock options/SARs exercised for the nine months ended SeptemberB 30, 2014 and 2013 was $78.0 million and $134.2 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]	(2)The total intrinsic value of stock options/SARs outstanding at SeptemberB 30, 2014 and 2013 was $384.9 million and $332.3 million, respectively. At SeptemberB 30, 2014 and 2013, the weighted average remaining contractual life was 4.6 years and 4.8 years, respectively.
[3]	(3)The total intrinsic value of stock options/SARs vested or expected to vest at SeptemberB 30, 2014 and 2013 was $376.6 million and $322.5 million, respectively. At SeptemberB 30, 2014 and 2013, the weighted average remaining contractual life was 4.5 years and 4.7 years, respectively.
[4]	(4)The total intrinsic value of stock options/SARs exercisable at SeptemberB 30, 2014 and 2013 was $277.5 million and $202.4 million, respectively. At SeptemberB 30, 2014 and 2013, the weighted average remaining contractual life was 3.3 years and 3.5 years, respectively.
[5]	(1)The total intrinsic value of restricted stock and restricted stock units released for the nine months ended SeptemberB 30, 2014 and 2013 was $270.0 million and $89.2 million, respectively. The intrinsic value is based upon the closing price of EOG's common stock on the date restricted stock and restricted stock units are released.
[6]	(2)The total intrinsic value of restricted stock and restricted stock units outstanding at SeptemberB 30, 2014 and 2013 was $556.7 million and $637.0 million, respectively.
[7]	(1)The total intrinsic value of performance units and performance stock outstanding at SeptemberB 30, 2014 and 2013 was $33.0 million and $22.1 million, respectively.

Net_Income_Per_Share_Details

Net Income Per Share (Details) (USD $)	3 Months Ended		9 Months Ended
In Thousands, except Per Share data, unless otherwise specified	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Numerator for Basic and Diluted Earnings Per Share - [Abstract]	'	'	'	'
Net Income	$1,103,618	$462,498	$2,470,899	$1,616,915
Denominator for Basic Earnings Per Share - [Abstract]	'	'	'	'
Weighted Average Shares	543,984	540,941	543,086	539,869
Potential Dilutive Common Shares -[Abstract]	'	'	'	'
Stock Options/SARs	2,760	2,378	2,644	2,196
Restricted Stock/Units and Performance Units/Stock	2,774	3,833	2,671	3,647
Denominator for Diluted Earnings Per Share - [Abstract]	'	'	'	'
Adjusted Diluted Weighted Average Shares	549,518	547,152	548,401	545,712
Net Income Per Share [Abstract]	'	'	'	'
Basic	$2.03	$0.85	$4.55	$3
Diluted	$2.01	$0.85	$4.51	$2.96
Anti-dilutive Stock Options and SARs excluded from Diluted Earnings Per Share Calculation (shares in thousands)	200	500	200	200

Supplemental_Cash_Flow_Informa2

Supplemental Cash Flow Information (Details) (USD $)	9 Months Ended
	Sep. 30, 2014		Sep. 30, 2013
Supplemental Cash Flow Information [Abstract]	'		'
Interest (1)	$143,615,000	[1]	$172,808,000	[1]
Income Taxes, Net of Refunds Received	330,476,000		220,450,000
Interest Costs Capitalized	43,000,000		34,000,000
Accrued Capital Expenditures	$960,000,000		$743,000,000
[1]	(1)Net of capitalized interest of $43 million and $34 million for the nine months ended SeptemberB 30, 2014 and 2013, respectively.

Segment_Information_Details

Segment Information (Details) (USD $)	3 Months Ended				9 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2014		Sep. 30, 2013		Sep. 30, 2014		Sep. 30, 2013		Dec. 31, 2013
Schedule of Segment Reporting Information By Segment [Abstract]	'		'		'		'		'
Net Operating Revenues	$5,118,616		$3,541,396		$13,389,843		$10,738,095		'
Operating Income (Loss)	1,786,162		769,769		4,015,171		2,694,887		'
Other Income (Expense), Net	-21,338		11,168		-16,726		5,867		'
Interest Expense, Net	49,704		59,382		151,723		182,950		'
Income Before Income Taxes	1,715,120		721,555		3,846,722		2,517,804		'
Total Assets	34,500,883		'		34,500,883		'		30,574,238
United States [Member]	'		'		'		'		'
Schedule of Segment Reporting Information By Segment [Abstract]	'		'		'		'		'
Net Operating Revenues	4,924,226		3,337,008		12,748,128		9,981,084		'
Operating Income (Loss)	1,767,044		747,958		3,900,263		2,522,127		'
Total Assets	31,578,693		'		31,578,693		'		27,668,713
Canada [Member]	'		'		'		'		'
Schedule of Segment Reporting Information By Segment [Abstract]	'		'		'		'		'
Net Operating Revenues	66,765		77,515		229,901		350,398		'
Operating Income (Loss)	-17,869		-21,647		-43,711		29,683		'
Total Assets	809,139		'		809,139		'		880,765
Trinidad [Member]	'		'		'		'		'
Schedule of Segment Reporting Information By Segment [Abstract]	'		'		'		'		'
Net Operating Revenues	123,154		122,280		398,140		390,552		'
Operating Income (Loss)	61,328		61,087		209,785		213,875		'
Total Assets	791,625		'		791,625		'		986,796
Other International [Member]	'		'		'		'		'
Schedule of Segment Reporting Information By Segment [Abstract]	'		'		'		'		'
Net Operating Revenues	4,471	[1]	4,593	[1]	13,674	[1]	16,061	[1]	'
Operating Income (Loss)	-24,341	[1]	-17,629	[1]	-51,166	[1]	-70,798	[1]	'
Total Assets	$1,321,426	[1]	'		$1,321,426	[1]	'		$1,037,964	[1]
[1]	(1) Other International primarily includes EOG's United Kingdom, China and Argentina operations.

Asset_Retirement_Obligations_D

Asset Retirement Obligations (Details) (USD $)	9 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2014		Sep. 30, 2013
Asset Retirement Obligation [Abstract]	'		'
Carrying Amount at Beginning of Period	$761,898		$665,944
Liabilities Incurred	91,822		48,556
Liabilities Settled (1)	-44,805	[1]	-54,859	[1]
Accretion	33,833		26,421
Revisions	68,785		27,252
Foreign Currency Translations	-4,178		-5,898
Carrying Amount at End of Period	907,355		707,416
Current Portion	12,528		14,329
Noncurrent Portion	$894,827		$693,087
[1]	(1)Includes settlements related to asset sales.

Exploratory_Well_Costs_Details

Exploratory Well Costs (Details) (USD $)	9 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2014
CapitalizedExploratoryWellCostsAbstract [Line Items]	'
Balance at December 31, 2013	$9,211
Additions Pending the Determination of Proved Reserves	47,927
Reclassifications to Proved Properties	-15,285
Costs Charged to Expense	-4,011
Balance at September 30, 2014	$37,842

Pension_and_Postretirement_Ben1

Pension and Postretirement Benefits (Details) (USD $)	9 Months Ended
In Millions, unless otherwise specified	Sep. 30, 2014	Sep. 30, 2013
Defined Benefit and Defined Contribution Plan Disclosure [Line Items]	'	'
Total pension plan costs	$29.60	$28.90

LongTerm_Debt_Details

Long-Term Debt (Details)

3 Months Ended

9 Months Ended

9 Months Ended

Sep. 30, 2014

Sep. 30, 2014

Sep. 30, 2013

Sep. 30, 2014

Sep. 30, 2014

Sep. 30, 2014

Sep. 30, 2013

Sep. 30, 2014

Sep. 30, 2013

Sep. 30, 2014

Sep. 30, 2014

Sep. 30, 2014

Sep. 30, 2014

Sep. 30, 2014

USD ($)

USD ($)

USD ($)

Canadian Dollar Letter of Credit Facility Due 2018 [Member]

Canadian Dollar Letter of Credit Facility Due 2018 [Member]

Uncommitted Credit Facility [Member]

Uncommitted Credit Facility [Member]

Commercial Paper [Member]

Commercial Paper [Member]

Revolving Credit Agreement [Member]

Floating Rate Senior Notes Due 2014 [Member]

4.75% Subsidiary Debt Due 2014 [Member]

2.95% Senior Notes Due 2015 [Member]

2.45% Senior Notes Due 2020 [Member]

USD ($)

CAD

USD ($)

USD ($)

USD ($)

USD ($)

USD ($)

USD ($)

USD ($)

USD ($)

USD ($)

Debt Instrument Issuance [Abstract]

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Debt Instrument Issuance Face Amount

'

'

'

'

'

'

'

'

'

'

$350,000,000

$150,000,000

$500,000,000

$500,000,000

Debt Instrument, Issuance Date

'

'

'

'

'

'

'

'

'

'

'

'

'

21-Mar-14

Debt Instrument Issuance Interest Rate

'

'

'

'

'

'

'

'

'

'

'

4.75%

'

2.45%

Debt Instrument, Repayment Date

'

'

'

'

'

'

'

'

'

'

3-Feb-14

17-Mar-14

'

'

Proceeds from Issuance of Senior Long-Term Debt

'

'

'

'

'

'

'

'

'

'

'

'

'

496,000,000

Settlement of Foreign Currency Swap

'

31,573,000

0

'

'

'

'

'

'

'

'

32,000,000

'

'

Settlement of Interest Rate Swap

'

'

'

'

'

'

'

'

'

'

800,000

'

'

'

Line of Credit Facility [Line Items]

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Letters of Credit Outstanding

'

'

'

'

'

'

'

'

'

0

'

'

'

'

Borrowings Outstanding

'

'

'

'

'

0

'

0

'

0

'

'

'

'

Short-term Debt, Average Outstanding Amount

'

'

'

'

'

100,000

0

16,000,000

23,000,000

'

'

'

'

'

Weighted average interest rate (in hundredths)

'

'

'

'

'

0.70%

'

0.25%

0.30%

'

'

'

'

'

Line of Credit Facility, Expiration Date

'

'

'

29-May-18

29-May-18

'

'

'

'

11-Oct-16

'

'

'

'

Restricted Cash

'

'

'

152,000,000

170,000,000

'

'

'

'

'

'

'

'

'

Maximum borrowing capacity

'

'

'

'

'

'

'

'

'

2,000,000,000

'

'

'

'

Letter of Credit Facility Previous Maximum Capacity

'

'

'

'

160,000,000

'

'

'

'

'

'

'

'

'

Letter of Credit Facility Current Maximum Capacity

'

'

'

'

190,000,000

'

'

'

'

'

'

'

'

'

Eurodollar rate at period end (in hundredths)

'

'

'

'

'

'

'

'

'

1.03%

'

'

'

'

Base rate at period end (in hundredths)

'

'

'

'

'

'

'

'

'

3.25%

'

'

'

'

Dividends Payable, Amount Per Share After Increase

$0.17

$0.17

'

'

'

'

'

'

'

'

'

'

'

'

Quarterly Cash Dividends, Common Stock, Cash

$0.13

'

'

'

'

'

'

'

'

'

'

'

'

'

Fair_Value_Measurements_Detail

Fair Value Measurements (Details) (USD $)	9 Months Ended
In Millions, unless otherwise specified	Sep. 30, 2014	Dec. 31, 2013
Financial Assets:	'	'
Financial Assets: Natural Gas Options/Swaptions	$32	$8
Financial Assets: Crude Oil Swaps	84	'
Financial Assets: Crude Oil Options/Swaptions	23	'
Financial Liabilities:	'	'
Financial Liabilities: Crude Oil Swaps	'	17
Financial Liabilities: Crude Oil Options/Swaptions	'	110
Financial Liabilities: Foreign Currency Rate Swap	'	40
Financial Liabilities: Interest Rate Swap	'	1
Proved Oil and Gas Properties and Other Assets Carrying Amount	152	'
Proved Oil and Gas Properties and Other Assets Written Down During the Period - Fair value at End of Period	68	'
Pretax Impairment Charges for Proved Oil and Gas Properties and Other Assets	84	'
Pretax Impairment Charges for Proved Oil and Gas Properties and Other Assets, in which EOG utilized an accepted offer from a third-party purchaser	58	'
Aggregate Principal Amount of Current and Long-Term Debt	5,890	5,890
Estimated Fair Value of Debt	6,243	6,222
Fair Value, Inputs, Level 1 [Member]	'	'
Financial Assets:	'	'
Financial Assets: Natural Gas Options/Swaptions	0	0
Financial Assets: Crude Oil Swaps	0	'
Financial Assets: Crude Oil Options/Swaptions	0	'
Financial Liabilities:	'	'
Financial Liabilities: Crude Oil Swaps	'	0
Financial Liabilities: Crude Oil Options/Swaptions	'	0
Financial Liabilities: Foreign Currency Rate Swap	'	0
Financial Liabilities: Interest Rate Swap	'	0
Fair Value, Inputs, Level 2 [Member]	'	'
Financial Assets:	'	'
Financial Assets: Natural Gas Options/Swaptions	32	8
Financial Assets: Crude Oil Swaps	84	'
Financial Assets: Crude Oil Options/Swaptions	23	'
Financial Liabilities:	'	'
Financial Liabilities: Crude Oil Swaps	'	17
Financial Liabilities: Crude Oil Options/Swaptions	'	110
Financial Liabilities: Foreign Currency Rate Swap	'	40
Financial Liabilities: Interest Rate Swap	'	1
Fair Value, Inputs, Level 3 [Member]	'	'
Financial Assets:	'	'
Financial Assets: Natural Gas Options/Swaptions	0	0
Financial Assets: Crude Oil Swaps	0	'
Financial Assets: Crude Oil Options/Swaptions	0	'
Financial Liabilities:	'	'
Financial Liabilities: Crude Oil Swaps	'	0
Financial Liabilities: Crude Oil Options/Swaptions	'	0
Financial Liabilities: Foreign Currency Rate Swap	'	0
Financial Liabilities: Interest Rate Swap	'	$0

Risk_Management_Activities_Det

Risk Management Activities (Details) (USD $)

Sep. 30, 2014

Dec. 31, 2013

Sep. 30, 2014

Dec. 31, 2013

Sep. 30, 2014

Dec. 31, 2013

Sep. 30, 2014

Dec. 31, 2013

Sep. 30, 2014

Dec. 31, 2013

Sep. 30, 2014

Dec. 31, 2013

Sep. 30, 2014

Dec. 31, 2013

Sep. 30, 2014

Sep. 30, 2014

Sep. 30, 2014

Sep. 30, 2014

Sep. 30, 2014

Sep. 30, 2014

Sep. 30, 2014

Sep. 30, 2014

Sep. 30, 2014

Sep. 30, 2014

Sep. 30, 2014

Sep. 30, 2014

Sep. 30, 2014

Sep. 30, 2014

Sep. 30, 2014

Sep. 30, 2014

Sep. 30, 2014

Sep. 30, 2014

Crude Oil and Natural Gas Derivative Contracts [Member]

Crude Oil and Natural Gas Derivative Contracts [Member]

Crude Oil and Natural Gas Derivative Contracts [Member]

Crude Oil and Natural Gas Derivative Contracts [Member]

Crude Oil and Natural Gas Derivative Contracts [Member]

Crude Oil and Natural Gas Derivative Contracts [Member]

Crude Oil and Natural Gas Derivative Contracts [Member]

Crude Oil and Natural Gas Derivative Contracts [Member]

Foreign Currency Swap [Member]

Foreign Currency Swap [Member]

Interest Rate Swap [Member]

Interest Rate Swap [Member]

Crude Oil Derivative Contracts January (closed) [Member]

Crude Oil Derivative Contracts February (closed) [Member]

Crude Oil Derivative Contracts March - June (closed) [Member]

Crude Oil Derivative Contracts July - August (closed) [Member]

Crude Oil Derivative Contracts September (closed) [Member]

Crude Oil Derivative Contracts October - December [Member]

Crude Oil Derivative Contracts Year Two January - June [Member]

Crude Oil Derivative Contracts Year Two July - December [Member]

Natural Gas Derivative Contracts January (closed) [Member]

Natural Gas Derivative Contracts February (closed) [Member]

Natural Gas Derivative Contracts March (closed) [Member]

Natural Gas Derivative Contracts April (closed) [Member]

Natural Gas Derivative Contracts May (closed) [Member]

Natural Gas Derivative Contracts June (Closed) [Member]

Natural Gas Derivative Contracts July (closed) [Member]

Natural Gas Derivative Contracts August - October (closed) [Member]

Natural Gas Derivative Contracts November - December [Domain]

Natural Gas Derivative Contracts Year Two January - December [Member]

Assets From Price Risk Management Activities [Member]

Assets From Price Risk Management Activities [Member]

Liabilities From Price Risk Management Activities [Member]

Liabilities From Price Risk Management Activities [Member]

Other Assets [Member]

Other Assets [Member]

Other Liabilities [Member]

Other Liabilities [Member]

Other Current Liabilities [Member]

Other Current Liabilities [Member]

Other Current Liabilities [Member]

Other Current Liabilities [Member]

bbl

bbl

bbl

bbl

bbl

bbl

bbl

bbl

MMBTU

MMBTU

MMBTU

MMBTU

MMBTU

MMBTU

MMBTU

MMBTU

MMBTU

MMBTU

Derivative [Line Items]

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Volumes (MMBtud) - Swaption Contracts

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

480,000

[1]

175,000

[2]

Volume (Bbld)

'

'

'

'

'

'

'

'

'

'

'

'

'

'

156,000

171,000

181,000

202,000

192,000

192,000

20,000

[3]

10,000

[3]

'

'

'

'

'

'

'

'

'

'

Derivative Weighted Average Price Crude Oil ($/Bbl)

'

'

'

'

'

'

'

'

'

'

'

'

'

'

96.3

96.35

96.55

96.34

96.15

96.15

91.41

[3]

89.98

[3]

'

'

'

'

'

'

'

'

'

'

Volumes (Bbld) - Derivative Option Contracts

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

69,000

[3]

10,000

[3]

'

'

'

'

'

'

'

'

'

'

Average Price ($/Bbl) - Derivative Option Contracts

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

95.2

[3]

92.85

[3]

'

'

'

'

'

'

'

'

'

'

Volume (MMBtud)

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

230,000

710,000

810,000

465,000

685,000

515,000

340,000

330,000

330,000

[1]

175,000

[2]

Derivative Weighted Average Price Natural Gas ($/MMBtu)

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

4.51

4.57

4.6

4.52

4.55

4.52

4.55

4.55

4.55

[1]

4.51

[2]

Average Price ($/MMBtu) - Derivative Option Contracts

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

4.63

[1]

4.51

[2]

Derivatives, Fair Value [Line Items]

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Derivative Assets, Current

$132,931,000

$8,260,000

$133,000,000

[4]

$8,000,000

[4]

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Other Assets

'

'

'

'

'

'

6,000,000

[5]

0

[5]

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Derivative Liabilities, Current

0

127,542,000

'

'

0

[6]

127,000,000

[6]

'

'

'

'

0

40,000,000

0

1,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Other Liabilities

'

'

'

'

'

'

'

'

0

[7]

0

[7]

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Derivative Assets, Current, Gross

'

'

147,000,000

18,000,000

14,000,000

10,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Derivative Assets, Noncurrent, Gross

'

'

'

'

'

'

10,000,000

'

4,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Derivative Liabilities, Current, Gross

'

'

14,000,000

10,000,000

14,000,000

137,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Derivative Liabilities, Noncurrent, Gross

'

'

'

'

'

'

4,000,000

'

4,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Derivative Collateral [Abstract]

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Collateral Held on Derivative

10,000,000

0

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Collateral Had on Derivaitve

$0

$0

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

[1]

(1)EOG has entered into natural gas derivative contracts which give counterparties the option of entering into derivative contracts at future dates. All such options are exercisable monthly up until the settlement date of each monthly contract. If the counterparties exercise all such options, the notional volume of EOG's existing natural gas derivative contracts will increase by 480,000 MMBtud at an average price of $4.63 per MMBtu for each month during the period November 1, 2014 through December 31, 2014.

[2]

(2)EOG has entered into natural gas derivative contracts which give counterparties the option of entering into derivative contracts at future dates. All such options are exercisable monthly up until the settlement date of each monthly contract. If the counterparties exercise all such options, the notional volume of EOG's existing natural gas derivative contracts will increase by 175,000 MMBtud at an average price of $4.51 per MMBtu for each month during the period January 1, 2015 through December 31, 2015.

[3]

(1)EOG has entered into crude oil derivative contracts which give counterparties the option to extend certain current derivative contracts for additional six-month periods. Options covering a notional volume of 69,000 Bbld are exercisable on or about December 31, 2014. If the counterparties exercise all such options, the notional volume of EOG's existing crude oil derivative contracts will increase by 69,000 Bbld at an average price of $95.20 per barrel for each month during the period January 1, 2015 through June 30, 2015. Options covering a notional volume of 10,000 Bbld are exercisable on June 30, 2015. If the counterparties exercise all such options, the notional volume of EOG's existing crude oil derivative contracts will increase by 10,000 Bbld at an average price of $92.85 per barrel for each month during the period July 1, 2015 through December 31, 2015.

[4]

(1)The current portion of Assets from Price Risk Management Activities consists of gross assets of $147 million, partially offset by gross liabilities of $14 million at SeptemberB 30, 2014, and gross assets of $18 million, partially offset by gross liabilities of $10 million at DecemberB 31, 2013.

[5]

(2)The noncurrent portion of Assets from Price Risk Management Activities consists of gross assets of $10 million, partially offset by gross liabilities of $4 million at SeptemberB 30, 2014.

[6]

(3)The current portion of Liabilities from Price Risk Management Activities consists of gross liabilities of $14 million, offset by gross assets of $14 million at SeptemberB 30, 2014, and gross liabilities of $137 million, partially offset by gross assets of $10 million at DecemberB 31, 2013.

[7]

(4)The noncurrent portion of Liabilities from Price Risk Management Activities consists of gross liabilities of $4 million, offset by gross assets of $4 million at SeptemberB 30, 2014.

Divestitures_Details

Divestitures (Details) (USD $)	9 Months Ended
In Millions, unless otherwise specified	Sep. 30, 2014	Sep. 30, 2013
Discontinued Operations and Disposal Groups [Abstract]	'	'
Proceeds from Sales of Producing Properties, Acreage and Other Assets	$91	$587