Antero Resources (AR) 10-Q6 Aug 142014 Q2 Quarterly reportFinancial data

Company Profile

Document_and_Entity_Informatio

Document and Entity Information	6 Months Ended
Document and Entity Information	Jun. 30, 2014	Aug. 05, 2014
Document and Entity Information	'	'
Entity Registrant Name	'ANTERO RESOURCES Corp	'
Entity Central Index Key	'0001433270	'
Document Type	'10-Q	'
Document Period End Date	30-Jun-14	'
Amendment Flag	'false	'
Current Fiscal Year End Date	'--12-31	'
Entity Current Reporting Status	'Yes	'
Entity Filer Category	'Non-accelerated Filer	'
Entity Common Stock, Shares Outstanding	'	262,049,659
Document Fiscal Period Focus	'Q2	'
Document Fiscal Year Focus	'2014	'

Condensed_Consolidated_Balance

Condensed Consolidated Balance Sheets (USD $)	Jun. 30, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified	Jun. 30, 2014	Dec. 31, 2013
Current assets:	'	'
Cash and cash equivalents	$19,273	$17,487
Accounts receivable - trade, net of allowance for doubtful accounts of $1,251 in 2013 and 2014	46,532	30,610
Notes receivable - short-term portion	889	2,667
Accrued revenue	139,553	96,825
Derivative instruments	175,286	183,000
Other	5,695	2,975
Total current assets	387,228	333,564
Natural gas properties, at cost (successful efforts method):	'	'
Unproved properties	1,677,642	1,513,136
Proved properties	4,881,002	3,621,672
Fresh water distribution systems	346,851	231,684
Gathering systems and facilities	873,308	584,626
Other property and equipment	34,019	15,757
Property and equipment, gross	7,812,822	5,966,875
Less accumulated depletion, depreciation, and amortization	-601,029	-407,219
Property and equipment, net	7,211,793	5,559,656
Derivative instruments	354,254	677,780
Other assets, net	91,933	42,581
Total assets	8,045,208	6,613,581
Current liabilities:	'	'
Accounts payable	500,774	370,640
Accrued liabilities	116,037	77,126
Revenue distributions payable	154,092	96,589
Deferred income tax liability	71,104	69,191
Derivative instruments	11,907	646
Other	6,800	8,037
Total current liabilities	860,714	622,229
Long-term liabilities:	'	'
Long-term debt	3,370,636	2,078,999
Deferred income tax liability	218,905	278,580
Derivative instruments	30,076	'
Other long-term liabilities	41,650	35,113
Total liabilities	4,521,981	3,014,921
Commitments and contingencies	'	'
Stockholders' equity:	'	'
Common stock, $0.01 par value; authorized - 1,000,000,000 shares; issued and outstanding - 262,049,659 shares	2,620	2,620
Preferred stock, $0.01 par value; authorized - 50,000,000 shares; none issued	'	'
Additional paid-in capital	3,463,791	3,402,180
Accumulated earnings	56,816	193,860
Total stockholders' equity	3,523,227	3,598,660
Total liabilities and stockholders' equity	$8,045,208	$6,613,581

Condensed_Consolidated_Balance1

Condensed Consolidated Balance Sheets (Parenthetical) (USD $)	Jun. 30, 2014	Dec. 31, 2013
In Thousands, except Share data, unless otherwise specified	Jun. 30, 2014	Dec. 31, 2013
Condensed Consolidated Balance Sheets	'	'
Accounts receivable - trade, allowance for doubtful accounts	$1,251	$1,251
Common stock, par value (in dollars per share)	$0.01	$0.01
Common stock, authorized shares	1,000,000,000	1,000,000,000
Common stock, shares issued	262,049,659	262,049,659
Common stock, shares outstanding	262,049,659	262,049,659
Preferred stock, par value (in dollars per share)	$0.01	$0.01
Preferred stock, authorized shares	50,000,000	50,000,000
Preferred stock, shares issued	0	0

Condensed_Consolidated_Stateme

Condensed Consolidated Statements of Operations and Comprehensive Income (Loss) (USD $)	3 Months Ended		6 Months Ended
In Thousands, except Per Share data, unless otherwise specified	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Revenue:	'	'	'	'
Natural gas sales	$314,151	$172,332	$626,487	$294,278
Natural gas liquids sales	79,768	17,244	153,696	27,816
Oil sales	35,633	2,085	59,755	2,962
Gathering, compression and water distribution	3,565	'	7,089	'
Marketing	1,987	'	5,213	'
Commodity derivative fair value gains (losses)	-123,766	195,483	-372,695	123,542
Total revenue	311,338	387,144	479,545	448,598
Operating expenses:	'	'	'	'
Lease operating	5,021	1,454	9,890	2,525
Gathering, compression, processing, and transportation	103,837	48,670	187,347	89,640
Production and ad valorem taxes	21,358	10,108	42,397	18,727
Marketing	13,946	'	25,927	'
Exploration	6,703	7,300	13,700	11,662
Impairment of unproved properties	1,956	4,803	3,353	6,359
Depletion, depreciation, and amortization	105,154	52,589	196,360	92,953
Accretion of asset retirement obligations	309	267	611	531
General and administrative (including stock compensation expense of $32,474 and $61,611 for three and six months ended June 30, 2014)	58,357	13,567	109,342	26,284
Total operating expenses	316,641	138,758	588,927	248,681
Operating income (loss)	-5,303	248,386	-109,382	199,917
Other expenses:	'	'	'	'
Interest	-37,260	-33,468	-68,602	-63,396
Loss on early extinguishment of debt	-20,386	'	-20,386	'
Total other expenses	-57,646	-33,468	-88,988	-63,396
Income (loss) from continuing operations before income taxes and discontinued operations	-62,949	214,918	-198,370	136,521
Provision for income tax (expense) benefit	18,454	-83,725	59,116	-53,325
Income (loss) from continuing operations	-44,495	131,193	-139,254	83,196
Discontinued operations:	'	'	'	'
Income from sale of discontinued operations, net of income tax expense of $1,354	2,210	'	2,210	'
Net income (loss) and comprehensive income (loss)	($42,285)	$131,193	($137,044)	$83,196
Earnings (loss) per common share:	'	'	'	'
Continuing operations (in dollars per share)	($0.17)	$0.50	($0.53)	$0.32
Discontinued operations (in dollars per share)	$0.01	'	$0.01	'
Total (in dollars per share)	($0.16)	$0.50	($0.52)	$0.32
Earnings (loss) per common share - assuming dilution	'	'	'	'
Continuing operations (in dollars per share)	($0.17)	$0.50	($0.53)	$0.32
Discontinued operations (in dollars per share)	$0.01	'	$0.01	'
Total (in dollars per share)	($0.16)	$0.50	($0.52)	$0.32

Condensed_Consolidated_Stateme1

Condensed Consolidated Statements of Operations and Comprehensive Income (Loss) (Parenthetical) (USD $)	3 Months Ended	6 Months Ended
In Thousands, unless otherwise specified	Jun. 30, 2014	Jun. 30, 2014
Condensed Consolidated Statements of Operations and Comprehensive Income (Loss)	'	'
Stock compensation	$32,474	$61,611
Discontinued operations, income tax expense	$1,354	$1,354

Condensed_Consolidated_Stateme2

Condensed Consolidated Statements of Equity (USD $)	Total	Common Stock	Additional paid-in capital	Accumulated earnings
In Thousands, unless otherwise specified	Total	Common Stock	Additional paid-in capital	Accumulated earnings
Balances at Dec. 31, 2013	$3,598,660	$2,620	$3,402,180	$193,860
Increase (Decrease) in Stockholders' Equity	'	'	'	'
Stock compensation	61,611	'	61,611	'
Net loss and comprehensive loss	-137,044	'	'	-137,044
Balances at Jun. 30, 2014	$3,523,227	$2,620	$3,463,791	$56,816

Condensed_Consolidated_Stateme3

Condensed Consolidated Statements of Cash Flows (USD $)	6 Months Ended
In Thousands, unless otherwise specified	Jun. 30, 2014	Jun. 30, 2013
Cash flows from operating activities:	'	'
Net income (loss)	($137,044)	$83,196
Adjustment to reconcile net loss to net cash provided by operating activities:	'	'
Depletion, depreciation, amortization, and accretion	196,971	93,484
Impairment of unproved properties	3,353	6,359
Derivative fair value (gains) losses	372,695	-123,542
Cash receipts (payments) for settled derivatives	-118	62,277
Deferred income tax expense (benefit)	-57,762	53,325
Stock compensation	61,611	'
Gain on sale of discontinued operations	-3,564	'
Loss on early extinguishment of debt	20,386	'
Other	969	2,575
Changes in assets and liabilities:	'	'
Accounts receivable	-15,922	-7,935
Accrued revenue	-42,728	-19,763
Other current assets	-942	10,808
Accounts payable	3,477	-1,436
Accrued liabilities	42,475	20,137
Revenue distributions payable	57,503	8,495
Other	-3,331	4,417
Net cash provided by operating activities	498,029	192,397
Cash flows used in investing activities:	'	'
Additions to unproved properties	-239,152	-271,003
Drilling and completion costs	-1,103,017	-720,910
Additions to fresh water distribution systems	-99,927	-36,967
Additions to gathering systems and facilities	-261,667	-151,737
Additions to other property and equipment	-11,041	-1,766
Change in other assets	-39,067	3,975
Net cash used in investing activities	-1,753,871	-1,178,408
Cash flows from financing activities:	'	'
Issuance of senior notes	600,000	231,750
Repayment of senior notes	-260,000	'
Borrowings on bank credit facility, net	952,000	743,000
Payments of deferred financing costs and redemption premiums on early extinguishment of debt	-34,372	-5,663
Other	'	8,802
Net cash provided by financing activities	1,257,628	977,889
Net (decrease) increase in cash and cash equivalents	1,786	-8,122
Cash and cash equivalents, beginning of period	17,487	18,989
Cash and cash equivalents, end of period	19,273	10,867
Supplemental disclosure of cash flow information:	'	'
Cash paid during the period for interest	60,031	62,246
Supplemental disclosure of noncash investing activities:	'	'
Changes in accounts payable for additions to property and equipment	$126,657	$54,051

Organization

Organization	6 Months Ended
Organization	Jun. 30, 2014
Organization	'
Organization	'
	(1) Organization

	(a) *Business and Organization*

	Antero Resources Corporation and its consolidated subsidiaries (collectively referred to as the “Company,” “we,” or “our”) are engaged in the exploitation, development, and acquisition of natural gas, natural gas liquids (“NGLs”) and oil properties in the Appalachian Basin in West Virginia, Ohio, and Pennsylvania. We target large, repeatable resource plays where horizontal drilling and advanced fracture stimulation technologies provide the means to economically develop and produce natural gas, NGLs, and oil from unconventional formations. We also have gathering and compression and fresh water distribution operations in the Appalachian Basin. Our corporate headquarters are in Denver, Colorado.

	Our consolidated financial statements include the accounts of Antero Resources Corporation and its subsidiaries, Antero Resources Midstream LLC (“Antero Midstream”) and Antero Midstream LLC (“Midstream Operating”).

	(b) *Corporate Reorganization and Initial Public Offering*

	Prior to October 16, 2013, the Company’s predecessor, Antero Resources LLC, filed reports with the Securities and Exchange Commission. Antero Resources LLC was formed in October 2009 by members of the Company’s management team and its sponsor investors. Antero Resources LLC owned 100% of the outstanding shares of Antero Resources Appalachian Corporation, which was formed in March 2008 and renamed Antero Resources Corporation in June 2013. In connection with our initial public offering (“IPO”) completed on October 16, 2013, all of the ownership interests in Antero Resources LLC were exchanged for similar interests in a newly formed limited liability company, Antero Resources Investment LLC (“Antero Investment”), and Antero Resources LLC was merged into Antero Resources Corporation. As a result of this reorganization, Antero Investment owned 100% of the issued and outstanding 224,375,000 shares of common stock of Antero Resources Corporation prior to the IPO.

	On October 16, 2013, Antero Resources Corporation issued 37,674,659 additional shares of its common stock at $44.00 per share in the IPO, resulting in proceeds to the Company, net of underwriter discounts and expenses of the offering, of approximately $1.6 billion.

	In 2013, the Company formed a subsidiary, Antero Midstream. The Company owns all of the common economic interest in Antero Midstream and Antero Investment indirectly owns a special membership interest. In connection with a planned initial public offering of Antero Midstream during 2014, the Company intends to contribute midstream and water assets to Antero Midstream and intends to enter into commercial arrangements for services from Antero Midstream. If the offering is completed, Midstream Operating, which will hold all the midstream and water assets, will be contributed to Antero Midstream. The special membership interest in Antero Midstream provides Antero Investment with certain rights, including the right to cause an initial public offering of Antero Midstream as a master limited partnership (“MLP”) or similar structure. Following any such initial public offering, the special membership interest will entitle Antero Investment to own the general partner interest in the MLP, which will allow Antero Investment to manage Antero Midstream’s business and affairs. Following any such initial public offering, Antero Investment will also indirectly hold the incentive distribution rights in the MLP. We cannot provide any assurance that the proposed initial public offering of the MLP will be completed in a timely fashion, or at all.

	(c) *Stock Compensation Charge in Connection with the Reorganization*

	In connection with its formation in October 2009, Antero Resources LLC issued profits interests to Antero Resources Employee Holdings LLC (“Employee Holdings”), which is owned solely by certain of our officers and employees. These profits interests provide for the participation in distributions upon liquidation events meeting certain requisite financial return thresholds. In turn, Employee Holdings issued membership interests to certain of our officers and employees. The Employee Holdings interests in Antero Resources LLC were exchanged for similar interests in Antero Investment in connection with the corporate reorganization on October 16, 2013.

	The limited liability company agreement of Antero Investment provides a mechanism that determines how the shares of the Company’s common stock will be allocated among the members of Antero Investment, including Employee Holdings, will be determined. As a result of the adoption of the Antero Investment limited liability company agreement, the satisfaction of all performance and service conditions relative to the profits interests awards held by Employee Holdings in Antero Investment became probable. Accordingly, we recognized approximately $418 million of stock compensation expense for the vested profits interests through June 30, 2014 and will recognize an additional approximate $69 million over the remaining service period. Stock compensation expense for the profits interests during the three and six months ended June 30, 2014 was $24.1 million and $52.8 million, respectively. Because consideration for the profits interests awards is deemed given by Antero Investment, the charge to stock compensation expense is accounted for as a capital contribution by Antero Investment to the Company and credited to additional paid-in capital.

Summary_of_Significant_Account

Summary of Significant Accounting Policies	6 Months Ended
Summary of Significant Accounting Policies	Jun. 30, 2014
Summary of Significant Accounting Policies	'
Summary of Significant Accounting Policies	'
	(2) Summary of Significant Accounting Policies

	(a) *Basis of Presentation*

	These consolidated financial statements have been prepared pursuant to the rules and regulations of the SEC applicable to interim financial information and should be read in the context of the December 31, 2013 consolidated financial statements and notes thereto for a more complete understanding of the Company’s operations, financial position, and accounting policies. The December 31, 2013 consolidated financial statements have been filed with the SEC in the Company’s Annual Report on Form 10-K for the year ended December 31, 2013.

	The accompanying unaudited condensed consolidated financial statements of the Company have been prepared in accordance with accounting principles generally accepted in the United States (“GAAP”) for interim financial information, and, accordingly, do not include all of the information and footnotes required by GAAP for complete consolidated financial statements. In the opinion of management, the accompanying unaudited condensed consolidated financial statements include all adjustments (consisting of normal and recurring accruals) considered necessary to present fairly the Company’s financial position as of June 30, 2014, and the results of its operations for the three and six months ended June 30, 2013 and 2014, and its cash flows for the six months ended June 30, 2013 and 2014. The Company has no items of other comprehensive income or loss; therefore, our net loss is identical to our comprehensive loss. All significant intercompany accounts and transactions have been eliminated. Operating results for the period ended June 30, 2014 are not necessarily indicative of the results that may be expected for the full year because of the impact of fluctuations in prices received for natural gas, NGLs, and oil, natural production declines, the uncertainty of exploration and development drilling results, and other factors.

	The Company’s exploration and production activities are accounted for under the successful efforts method.

	Income from discontinued operations for the three and six months ended June 30, 2014 results from the downward adjustment of certain liabilities recorded upon the sale of our Arkoma Basin assets in 2012 because of resolution of such liabilities.

	As of the date these financial statements were filed with the SEC, the Company completed its evaluation of potential subsequent events for disclosure and no items requiring disclosure were identified, except an amendment to our senior secured revolving bank credit facility as described in note 3.

	(b) *Use of Estimates*

	The preparation of consolidated financial statements in conformity with generally accepted accounting principles in the United States requires management to make estimates and assumptions that affect the reported assets and liabilities and disclosure of contingent assets and liabilities at the date of the consolidated financial statements and the reported amounts of revenues and expenses during the reporting period. Changes in facts and circumstances or discovery of new information may result in revised estimates, and actual results could differ from those estimates.

	The Company’s consolidated financial statements are based on a number of significant estimates including estimates of gas and oil reserve quantities, which are the basis for the calculation of depreciation, depletion, amortization and impairment of oil and gas properties. Reserve estimates by their nature are inherently imprecise.

	(c) *Risks and Uncertainties*

	Historically, the market for natural gas, NGLs, and oil has experienced significant price fluctuations. The price fluctuations can result from variations in weather, levels of production in the region, availability of transportation capacity to other regions of the country, and various other factors. Increases or decreases in prices received could have a significant impact on the Company’s future results of operations.

	(d) *Cash and Cash Equivalents*

	The Company considers all liquid investments purchased with an initial maturity of three months or less to be cash equivalents. The carrying value of cash and cash equivalents approximates fair value due to the short-term nature of these instruments.

	(e) *Derivative Financial Instruments*

	In order to manage its exposure to oil and gas price volatility, the Company enters into derivative transactions from time to time, including commodity swap agreements, basis swap agreements, collar agreements, and other similar agreements relating to the price risk associated with a portion of its production. To the extent legal right of offset with a counterparty exists, the Company reports derivative assets and liabilities on a net basis. The Company has exposure to credit risk to the extent the counterparty is unable to satisfy its settlement obligation. The Company actively monitors the creditworthiness of counterparties and assesses the impact, if any, on its derivative position.

	The Company records derivative instruments on the consolidated balance sheets as either an asset or liability measured at fair value and records changes in the fair value of derivatives in current earnings as they occur. Changes in the fair value of commodity derivatives are classified as revenues.

	(f) *Income Taxes*

	The Company recognizes deferred tax assets and liabilities for temporary differences resulting from net operating loss carryforwards for income tax purposes and the differences between the financial statement and tax basis of assets and liabilities. The effect of changes in the tax laws or tax rates is recognized in income in the period such changes are enacted. Deferred tax assets are reduced by a valuation allowance, when, in the opinion of management, it is more likely than not that some portion or all of the deferred tax assets will not be realized.

	Unrecognized tax benefits represent potential future tax obligations for uncertain tax positions taken on previously filed tax returns that may not ultimately be sustained. The Company recognizes interest expense related to unrecognized tax benefits in interest expense and fines and penalties as income tax expense.

	(g) *Fair Value Measurements*

	FASB ASC Topic 820, Fair Value Measurements and Disclosures, clarifies the definition of fair value, establishes a framework for measuring fair value, and expands disclosures about fair value measurements. This guidance also relates to all nonfinancial assets and liabilities that are not recognized or disclosed on a recurring basis (e.g., those measured at fair value in a business combination, the initial recognition of asset retirement obligations, and impairments of proved oil and gas properties, and other long-lived assets). The fair value is the price that the Company estimates would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date. A fair value hierarchy is used to prioritize input to valuation techniques used to estimate fair value. An asset or liability subject to the fair value requirements is categorized within the hierarchy based on the lowest level of input that is significant to the fair value measurement. The Company’s assessment of the significance of a particular input to the fair value measurement in its entirety requires judgment and considers factors specific to the asset or liability. The highest priority (Level 1) is given to unadjusted quoted market prices in active markets for identical assets or liabilities, and the lowest priority (Level 3) is given to unobservable inputs. Level 2 inputs are data, other than quoted prices included within Level 1 that are observable for the asset or liability, either directly or indirectly. Instruments which are valued using Level 2 inputs include nonexchange traded derivatives such as over-the-counter commodity price swaps, basis swaps, and interest rate swaps. Valuation models used to measure fair value of these instruments consider various Level 2 inputs including (i) quoted forward prices for commodities, (ii) time value, (iii) quoted forward interest rates, (iv) current market prices and contractual prices for the underlying instruments, (v) risk of nonperformance by the Company and the counterparty, and (vi) other relevant economic measures.

	(h) *Industry Segments and Geographic Information*

	Management has evaluated how the Company is organized and managed and have identified the following operating segments: (1) the exploration, development, and production of natural gas, NGLs, and oil, (2) gathering and compression, and (3) fresh water distribution.

	All of our assets are located in the United States and all of our revenues are attributable to customers located in the United States.

	(i) *Marketing Revenues and Expenses*

	In 2014 the Company began activities to purchase and sell third-party natural gas and to market its excess firm transportation capacity in order to utilize excess firm transportation capacity. Marketing revenues include sales of third-party gas and revenues from the release of firm transportation capacity to others. Marketing expenses include the cost of purchased third-party natural gas. The Company classifies firm transportation costs related to capacity contracted for in advance of having sufficient production and infrastructure to fully utilize the capacity (excess capacity) as marketing expenses since it is marketing this excess capacity to third parties. Firm transportation for which the Company has sufficient production capacity (even though it may not use the capacity because of alternative delivery points with favorable pricing) is considered unutilized capacity. The costs of unutilized capacity are charged to transportation expense.

	(j) *Reclassifications*

	Certain reclassifications have been made to prior periods’ financial information related to fresh water distribution assets to conform to the 2014 presentation.

	(k) *Earnings (loss) per share*

	Because of the losses incurred for both the three and six months ended June 30, 2014, the effect of options and restricted stock awards is antidilutive and loss per share and loss per share-assuming dilution was calculated based on the weighted average number of shares outstanding of 262,049,659. Earnings per common share and earnings per common share—assuming dilution for the three and six months ended June 30, 2013 were calculated as if the shares issued in the corporate reorganization and IPO described in note 1 were outstanding as of January 1, 2013.

LongTerm_Debt

Long-Term Debt	6 Months Ended
	Jun. 30, 2014
Long-Term Debt	'
Long-Term Debt	'
	(3) Long-Term Debt

	The Company had long-term debt as follows at December 31, 2013 and June 30, 2014 (in thousands):

		2013		2014
	Bank credit facility(a)	$	288,000	1,240,000
	7.25% senior notes due 2019(b)	260,000		—
	6.00% senior notes due 2020(c)	525,000		525,000
	5.375% senior notes due 2021(d)	1,000,000		1,000,000
	5.125% senior notes due 2022(e)	—		600,000
	Net unamortized premium	5,999		5,636
		$	2,078,999	3,370,636

	(a) *Senior Secured Revolving Credit Facility*

	The Company has a senior secured revolving bank credit facility (the “Credit Facility”) with a consortium of bank lenders. The maximum amount of the Credit Facility was $3.5 billion at June 30, 2014. Borrowings under the Credit Facility are subject to borrowing base limitations based on the collateral value of our proved properties and commodity hedge positions and are subject to regular semiannual redeterminations. At June 30, 2014, the borrowing base was $3.0 billion and lender commitments were $2.0 billion. On July 28, 2014, lender commitments were increased to $2.5 billion, including $400 million of commitments under the Midstream Facility described below. Lender commitments can be increased to the full amount of the borrowing base upon approval of the lending group. The maturity date of the Credit Facility is May 5, 2019. The next redetermination of the borrowing base is scheduled to occur in October 2014.

	On February 28, 2014, the Company and Midstream Operating entered into a new midstream credit facility (the “Midstream Facility”) in order to provide for separate borrowings attributable to our midstream business which contains covenants that are substantially identical to those under the Credit Facility. In accordance with the Credit Facility and the Midstream Facility, borrowings under the Midstream Facility reduce availability under the Credit Facility on a dollar-for-dollar basis. The Midstream Facility will mature at the earlier of the closing of the MLP’s initial public offering or May 12, 2016. If the MLP’s initial public offering is completed, it is expected that the MLP will enter into its own revolving credit facility in connection with the completion thereof.

	The Credit Facility and the Midstream Facility are ratably secured by mortgages on substantially all of the Company’s properties and guarantees from the Company or its subsidiaries, as applicable. The Credit Facility and the Midstream Facility contain certain covenants, including restrictions on indebtedness and dividends, and, in the case of the Credit Facility, requirements with respect to working capital and interest coverage ratios. Interest is payable at a variable rate based on LIBOR or the prime rate based on the Company’s election at the time of borrowing. The Company was in compliance with all of the financial covenants under the Credit Facility as of December 31, 2013 and June 30, 2014.

	As of June 30, 2014, the Company had a total outstanding balance under the Credit Facility and Midstream Facility of $1.24 billion, with a weighted average interest rate of 2.03%, and outstanding letters of credit of $237 million. As of December 31, 2013, the Company had an outstanding balance under the Credit Facility of $288 million, with a weighted average interest rate of 1.61%, and outstanding letters of credit of $32 million. Commitment fees on the unused portion of the Credit Facility are due quarterly at rates ranging from 0.375% to 0.50% of the unused facility based on utilization.

	(b) *7.25% Senior Notes Due 2019*

	On May 23, 2014, the Company redeemed the outstanding 7.25% senior notes due 2019 (the “2019 notes”) having a principal balance of $260 million at a redemption price of 100% of the principal amount plus a make-whole premium of $17.4 million. The make-whole premium along with the write-off of $3 million of deferred financing costs was charged to Loss on early extinguishment of debt in the accompanying statements of operations. The redemption was financed using a portion of the proceeds from the offering of the Company’s 5.125% senior notes due 2022 (the “2022 notes”) described below.

	(c) *6.00% Senior Notes Due 2020*

	On November 19, 2012, the Company issued $300 million of 6.00% senior notes due December 1, 2020 (the “2020 notes”) at par. On February 4, 2013, the Company issued an additional $225 million of 2020 notes at 103% of par. The 2020 notes are unsecured and effectively subordinated to the Company’s Credit Facility and the Midstream Facility to the extent of the value of the collateral securing such facilities. The 2020 notes rank pari passu to our other outstanding senior notes. The 2020 notes are guaranteed on a senior unsecured basis by the Company’s existing subsidiaries and certain of its future restricted subsidiaries. Interest on the 2020 notes is payable on June 1 and December 1 of each year. The Company may redeem all or part of the 2020 notes at any time on or after December 1, 2015 at redemption prices ranging from 104.50% on or after December 1, 2015 to 100.00% on or after December 1, 2018. In addition, on or before December 1, 2015, the Company may redeem up to 35% of the aggregate principal amount of the 2020 notes with the net cash proceeds of certain equity offerings, if certain conditions are met, at a redemption price of 106.00% of the principal amount of the 2020 notes, plus accrued interest. At any time prior to December 1, 2015, the Company may redeem the 2020 notes, in whole or in part, at a price equal to 100% of the principal amount of the 2020 notes plus a “make-whole” premium and accrued interest. If the Company undergoes a change of control, the holders of the 2020 notes will have the right to require the Company to repurchase all or a portion of the notes at a price equal to 101% of the principal amount of the 2020 notes, plus accrued interest.

	(d) *5.375% Senior Notes Due 2021*

	On November 5, 2013, the Company issued $1 billion of 5.375% senior notes due November 21, 2021 (the “2021 notes”) at par. The 2021 notes are unsecured and effectively subordinated to the Credit Facility and the Midstream Facility to the extent of the value of the collateral securing such facilities. The 2021 notes rank pari passu to our other outstanding senior notes. The 2021 notes are guaranteed on a full and unconditional and joint and several basis by the Company’s existing subsidiaries and certain of its future restricted subsidiaries. Interest on the 2021 notes is payable on May 1 and November 1 of each year. The Company may redeem all or part of the 2021 notes at any time on or after November 1, 2016 at redemption prices ranging from 104.031% on or after November 1, 2016 to 100.00% on or after November 1, 2019. In addition, on or before November 1, 2016, the Company may redeem up to 35% of the aggregate principal amount of the 2021 notes with the net cash proceeds of certain equity offerings, if certain conditions are met, at a redemption price of 105.375% of the principal amount of the 2021 notes, plus accrued interest. At any time prior to November 1, 2016, the Company may also redeem the 2021 notes, in whole or in part, at a price equal to 100% of the principal amount of the 2021 notes plus a “make-whole” premium and accrued interest. If the Company undergoes a change of control prior to May 1, 2015, it may redeem all, but not less than all, of the 2021 notes at a redemption price equal to 110% of the principal amount of the 2021 notes. If the Company undergoes a change of control, it may be required to offer to purchase the 2021 notes from the holders at a price equal to 101% of the principal amount of the 2021 notes, plus accrued interest.

	(e) *5.125% Senior Notes Due 2022*

	On May 6, 2014, the Company issued $600 million of 5.125% senior notes due December 1, 2022 (the “2022 notes”) at par. The 2022 notes are unsecured and effectively subordinated to the Credit Facility and the Midstream Facility to the extent of the value of the collateral securing such facilities. The 2022 notes rank pari passu to our other outstanding senior notes. The 2022 notes are guaranteed on a full and unconditional and joint and several basis by the Company’s existing subsidiaries and certain of its future restricted subsidiaries. Interest on the 2022 notes is payable on June 1 and December 1 of each year. The Company may redeem all or part of the 2022 notes at any time on or after June 1, 2017 at redemption prices ranging from 103.844% on or after June 1, 2017 to 100.00% on or after June 1, 2020. In addition, on or before June 1, 2017, the Company may redeem up to 35% of the aggregate principal amount of the 2022 notes with the net cash proceeds of certain equity offerings, if certain conditions are met, at a redemption price of 105.125% of the principal amount of the 2022 notes, plus accrued interest. At any time prior to June 1, 2017, the Company may also redeem the 2022 notes, in whole or in part, at a price equal to 100% of the principal amount of the 2022 notes plus a “make-whole” premium and accrued interest. If the Company undergoes a change of control prior to December 1, 2015, it may redeem all, but not less than all, of the 2022 notes at a redemption price equal to 110% of the principal amount of the 2022 notes. If the Company undergoes a change of control, the holders of the 2022 notes will have the right to require the Company to repurchase all or a portion of the notes at a price equal to 101% of the principal amount of the 2022 notes, plus accrued interest.

	(f) *Treasury Management Facility*

	The Company has a stand-alone revolving note with a lender under the Credit Facility which provides for up to $25.0 million of cash management obligations in order to facilitate the Company’s daily treasury management. Borrowings under the revolving note are secured by the collateral for the revolving credit facility. Borrowings under the facility bear interest at the lender’s prime rate plus 1.0%. The note matures on June 1, 2015. At December 31, 2013 and June 30, 2014, there were no outstanding borrowings under this facility.

Asset_Retirement_Obligations

Asset Retirement Obligations	6 Months Ended
	Jun. 30, 2014
Asset Retirement Obligations	'
Asset Retirement Obligations	'
	(4) Asset Retirement Obligations

	The following is a reconciliation of the Company’s asset retirement obligations for the six months ended June 30, 2014 (in thousands). This amount is included in other long-term liabilities on the accompanying Condensed Consolidated Balance Sheet.

	Asset retirement obligations—beginning of period	$	11,859
	Obligations incurred	618
	Accretion expense	611
	Asset retirement obligations—end of period	$	13,088

StockBased_Compensation

Stock-Based Compensation	6 Months Ended
Stock-Based Compensation	Jun. 30, 2014
Stock-Based Compensation	'
Stock-Based Compensation	'
	(5) Stock-Based Compensation

	The Company is authorized to grant up to 16,906,500 stock-based compensation awards to employees and directors of the Company under the Antero Resources Corporation Long-Term Incentive Plan (the “Plan”). The Plan allows stock-based compensation awards to be granted in a variety of forms, including stock options, stock appreciation rights, restricted stock awards, restricted stock unit awards, dividend equivalent awards, and other types of awards. The terms and conditions of the awards granted are established by the Compensation Committee of the Company’s Board of Directors. A total of 14,870,943 shares are available for future grant under the Plan as of June 30, 2014.

	Our stock-based compensation expense is as follows for the six months ended June 30, 2014 (in thousands):

	Profits interests awards (see note 1)	$	52,768
	Restricted stock awards	8,596
	Stock options	247
	Total expense	$	61,611

	Restricted Stock and Restricted Stock Unit Awards

	Restricted stock awards vest subject to the satisfaction of service requirements. The grant date fair value of these awards are determined based on the price of the Company’s common stock on the date of the grant. A summary of restricted stock and restricted stock unit awards activity during the six months ended June 30, 2014 is as follows:

		Number of		Weighted		Aggregate
		shares		average		intrinsic value
				grant date		(in thousands)
				fair value
	Total granted and unvested, December 31, 2013	45,093		$	54.27	$	2,861
	Granted	1,923,448		$	65	126,236
	Vested	—		—		—
	Forfeited	(3,323	)	$	58.4	(218		)
	Total awarded and unvested—June 30, 2014	1,965,218		$	64.82	$	128,977

	Unamortized expense of $118.6 million at June 30, 2014 is expected to be recognized over approximately 3.5 to 4 years. Intrinsic value is based on the closing price of the Company’s stock on the referenced dates.

	Stock Options

	Stock options granted under the Plan to date vest over periods from one to four years and have a maximum contractual life of 10 years. We recognize expense related to stock options on a straight-line basis over the requisite service period, less awards expected to be forfeited. Stock options are granted with an exercise price equal to the market price of our common stock on the date of grant. A summary of stock option activity for the six months ended June 30, 2014 is as follows:

		Stock		Weighted		Weighted		Intrinsic
		options		average		average		value
				exercise		remaining		(in thousands)
				price		contractual
						life
	Outstanding at December 31, 2013	70,339		$	54.15	9.79		$	653
	Options granted	—		—		—		—
	Options exercised	—		—		—		—
	Options cancelled	—		—		—		—
	Options expired	—		—		—		—
	Outstanding at June 30, 2014	70,339		$	54.15	9.29		$	807
	Expected to vest as of June 30, 2014	70,339		$	54.15	9.29		$	807
	Exercisable at June 30, 2014	—		—		—		—

	Intrinsic value is based on the closing price of the Company’s stock on the referenced dates.

	We use a Black-Scholes option-pricing model to determine the fair value of our stock options. Expected volatility was derived from the volatility of the historical stock prices of a peer group of similar publicly traded companies’ stock prices. The risk-free interest rate was determined using the implied yield currently available for zero-coupon U.S. government issues with a remaining term approximating the expected life of the options. We assumed no dividend yield.

	The following table presents information regarding the weighted average fair value for options granted and the assumptions used to determine fair value.

	Dividend yield	—		%
	Volatility	35		%
	Risk-free interest rate	1.48		%
	Expected life (years)	6.17
	Weighted average fair value of options granted	$	20.2


	As of June 30, 2014, there was $1.1 million of unrecognized stock-based compensation expense related to nonvested stock options. That expense is expected to be recognized over a weighted average period of 3 years.

Financial_Instruments

Financial Instruments	6 Months Ended
Financial Instruments	Jun. 30, 2014
Financial Instruments	'
Financial Instruments	'
	(6) Financial Instruments

	The carrying values of trade receivables and trade payables at December 31, 2013 and June 30, 2014 approximated market value because of their short-term nature. The carrying value of the bank credit facility at December 31, 2013 and June 30, 2014 approximated fair value because the variable interest rates are reflective of current market conditions.

	The fair value of the Company’s senior notes was approximately $1.9 billion, based on Level 2 market data inputs at December 31, 2013 and $2.2 billion at June 30, 2014.

	See note 7 for information regarding the fair value of derivative financial instruments.

Derivative_Instruments

Derivative Instruments	6 Months Ended
Derivative Instruments	Jun. 30, 2014
Derivative Instruments	'
Derivative Instruments	'
	(7) Derivative Instruments

	(a) *Commodity Derivatives*

	The Company periodically enters into oil and natural gas derivative contracts with counterparties to hedge the price risk associated with a portion of its production. These derivatives are not held for trading purposes. To the extent that changes occur in the market prices of natural gas, the Company is exposed to market risk on these open contracts. This market risk exposure is generally offset by the change in market prices of natural gas recognized upon the ultimate sale of the oil and natural gas produced.

	For the six months ended June 30, 2013 and 2014, the Company was party to natural gas and oil fixed price swaps. When actual commodity prices exceed the fixed price provided by the swap contracts, the Company pays the excess to the counterparty, and when actual commodity prices are below the contractually provided fixed price the Company receives the difference from the counterparty. The Company’s natural gas and oil swaps have not been designated as hedges for accounting purposes; therefore, all gains and losses were recognized in income currently.

	As of June 30, 2014, the Company’s fixed price natural gas and oil swaps positions from July 1, 2014 through December 31, 2019 are summarized in the following table.

			Natural gas		Oil		Weighted
			MMbtu/day		Bbls/day		average index
							price
	Three Months ending September 30, 2014:
	TCO		210,000		—		$	5.01
	Dominion South		160,000		—		$	5.04
	NYMEX		340,000		—		$	4.08
	CGTLA		10,000		—		$	3.82
	NYMEX-WTI		—		3,000		$	94.13
	Total		720,000		3,000

	Three Months ending December 31, 2014:
	TCO		210,000		—		$	5.24
	Dominion South		160,000		—		$	5.27
	NYMEX		340,000		—		$	4.18
	CGTLA		10,000		—		$	3.98
	NYMEX-WTI		—		3,000		$	94.13
	Total		720,000		3,000

	Year ending December 31, 2015:
	TCO		120,000				$	5.01
	Dominion South		230,000				$	5.6
	NYMEX		260,000				$	4.13
	CGTLA		40,000				$	4
	2015 Total		650,000

	Year ending December 31, 2016:
	TCO		60,000				$	4.91
	Dominion South		272,500				$	5.35
	NYMEX		140,000				$	4.17
	CGTLA		170,000				$	4.09
	2016 Total		642,500

	Year ending December 31, 2017:
	NYMEX		290,000				$	4.38
	CGTLA		420,000				$	4.27
	CCG		70,000				$	4.57
	2017 Total		780,000

	Year ending December 31, 2018:
	NYMEX		710,000				$	4.6

	Year ending December 31, 2019:
	NYMEX		467,500				$	4.41

	In addition, the Company has entered into natural gas basis differential positions which settle on the pricing index to basis differential of Columbia Gas (TCO) to the NYMEX Henry Hub natural gas price as follows:

			Natural gas		Hedged
			MMbtu/day		Differential

	Year ending December 31, 2015:		390,000		$	(0.35	)

	Year ending December 31, 2016:		170,000		$	(0.41	)

Year ending December 31, 2017:		90,000		$	(0.50	)

(b) *Summary*

The following is a summary of the fair values of derivative instruments not designated as hedges for accounting purposes and where such values are recorded in the consolidated balance sheets as of December 31, 2013 and June 30, 2014. None of the Company’s derivative instruments are designated as hedges for accounting purposes.

		December 31, 2013					June 30, 2014
		Balance sheet		Fair value			Balance sheet		Fair value
		location		Fair value			location		Fair value
				(In thousands)					(In thousands)
Asset derivatives not designated as hedges for accounting purposes:
Commodity contracts		Current assets		$	183,000		Current assets		$	175,286
Commodity contracts		Long-term assets		677,780			Long-term assets		354,254

Total asset derivatives				860,780					529,540

Liability derivatives not designated as hedges for accounting purposes:
Commodity contracts		Current liabilities		646			Current liabilities		11,907
Commodity contracts		Long-term liabilities		—			Long-term liabilities		30,076

Total liability derivatives				646					41,983

Net derivatives				$	860,134				$	487,557

The following tables present the gross amounts of recognized derivative assets and liabilities, the amounts offset under netting arrangements with counterparties, and the resulting net amounts presented in the condensed consolidated balance sheets for the periods presented, all at fair value (in thousands):

		December 31, 2013							June 30, 2014
		Gross			Gross amounts		Net amounts		Gross			Gross amounts		Net amounts
		amounts on			offset on		of assets		amounts on			offset on		of assets
		balance sheet			balance sheet		(liabilities)		balance sheet			balance sheet		(liabilities)
							on balance							on balance
							sheet							sheet
Commodity derivative assets		$	887,034		(26,254	)	860,780		$	632,885		(103,345	)	529,540
Commodity derivative liabilities		$	(646	)	—		(646	)	$	(55,818	)	13,835		(41,983	)

The following is a summary of derivative fair value gains (losses) and where such values are recorded in the consolidated statements of operations for the three and six months ended June 30, 2013 and 2014 (in thousands):

		Statement of		Three months ended					Six months ended
		operations		June 30					June 30
		location		2013			2014		2013		2014
Commodity derivative fair value gains (losses)		Revenue		$	195,483		(123,766	)	123,542		(372,695	)


The fair value of commodity derivative instruments was determined using Level 2 inputs.

Contingencies

Contingencies	6 Months Ended
Contingencies	Jun. 30, 2014
Contingencies	'
Contingencies	'
	(8) Contingencies

	The Company is party to various legal proceedings and claims in the ordinary course of its business. The Company believes certain of these matters will be covered by insurance and that the outcome of other matters will not have a material adverse effect on its consolidated financial position, results of operations, or liquidity.

Segment_Information

Segment Information	6 Months Ended
Segment Information	Jun. 30, 2014
Segment Information	'
Segment Information	'
	(9) Segment Information

	The operating results and assets of the Company’s reportable segments were as follows for the three months ended June 30, 2013 and 2014 (in thousands):

		Exploration			Gathering and		Fresh water	Elimination of		Consolidated
		and			compression		distribution	intersegment		total
		production						transactions
	2013:00:00
	Revenue:
	Third-party	$	387,144		—		—	—		387,144
	Intersegment	—			3,539		8,441	(11,980	)	—
		$	387,144		3,539		8,441	(11,980	)	387,144

	Operating income (loss)	$	250,038		(762	)	6,525	(7,415	)	248,386
	Segment assets	$	4,802,643		332,782		57,251	(367,528	)	4,825,148
	Capital expenditures for segment assets	$	516,673		95,762		27,947	(7,652	)	632,730

		Exploration			Gathering and		Fresh water	Elimination of		Consolidated
		and			compression		distribution	intersegment		total
		production						transactions
	2014:00:00
	Revenue:
	Third-party	$	307,773		2,017		1,548	—		311,338
	Intersegment	—			14,906		38,970	(53,876	)	—
		$	307,773		16,923		40,518	(53,876	)	311,338

	Operating income (loss)	$	(2,023	)	290		23,498	(27,068	)	(5,303	)
	Segment assets	$	7,641,668		898,269		348,629	(843,358	)	8,045,208
	Capital expenditures for segment assets	$	817,833		154,144		39,897	(28,776	)	983,098

	The operating results and assets of the Company’s reportable segments were as follows for the six months ended June 30, 2013 and 2014 (in thousands):

		Exploration			Gathering and		Fresh water	Elimination of		Consolidated
		and			compression		distribution	intersegment		total
		production						transactions
	2013:00:00
	Revenue:
	Third-party	$	448,598		—		—	—		448,598
	Intersegment	—			5,492		12,806	(18,298	)	—
		$	448,598		5,492		12,806	(18,298	)	448,598

	Operating income (loss)	$	203,128		(1,793	)	9,696	(11,114	)	199,917
	Segment assets	$	4,802,643		332,782		57,251	(367,528	)	4,825,148
	Capital expenditures for segment assets	$	1,005,152		151,737		36,967	(11,473	)	1,182,383

		Exploration			Gathering and		Fresh water	Elimination of		Consolidated
		and			compression		distribution	intersegment		total
		production						transactions
	2014:00:00
	Revenue:
	Third-party	$	472,456		2,947		4,142	—		479,545
	Intersegment	—			25,749		61,135	(86,884	)	—
		$	472,456		28,696		65,277	(86,884	)	479,545

	Operating income (loss)	$	(106,403	)	1,239		38,115	(42,333	)	(109,382	)
	Segment assets	$	7,641,668		898,269		348,629	(843,358	)	8,045,208
	Capital expenditures for segment assets	$	1,399,877		261,667		99,927	(46,667	)	1,714,804

Subsidiary_Guarantors

Subsidiary Guarantors	6 Months Ended
Subsidiary Guarantors	Jun. 30, 2014
Subsidiary Guarantors	'
Subsidiary Guarantors	'
	(10) Subsidiary Guarantors

	The Company’s wholly owned subsidiaries each have fully and unconditionally guaranteed the Company’s outstanding senior notes. The following Condensed Consolidating Balance Sheets as of December 31, 2013 and June 30, 2014 present financial information for Antero Resources Corporation as the Parent on a stand-alone basis (carrying its investment in subsidiaries using the equity method), combined financial information for the subsidiary guarantors (Antero Resources Midstream LLC and Antero Midstream LLC) as a group, and the consolidation and elimination entries necessary to arrive at the information for the Company on a consolidated basis. The guarantor subsidiaries had no revenues, expenses, or cash flow during the year ended December 31, 2013 or the three and six months ended June 30, 2014. The guarantor subsidiaries are not restricted from making distributions to the Company.

	Condensed Consolidating Balance Sheets

	December 31, 2013

	(In thousands)

		Parent		Guarantor	Eliminations		Consolidated
		Parent		Subsidiaries	Eliminations		Consolidated
	Assets
	Current assets:
	Cash and cash equivalents	$	17,487	—	—		17,487
	Other	316,077		1	(1	)	316,077
	Total current assets	333,564		1	(1	)	333,564

	Property and equipment, net	5,559,656		—	—		5,559,656
	Other long-term assets	720,361		—	—		720,361
	Investment in subsidiary	1		—	(1	)	—
		$	6,613,582	1	(2	)	6,613,581

	Liabilities and Stockholders’ Equity

	Current liabilities	$	622,229	—	—		622,229
	Long-term debt	2,078,999		—	—		2,078,999
	Other long-term liabilities	313,693		—	—		313,693
	Due to subsidiary	1		—	(1	)	—
	Total liabilities	3,014,922		—	(1	)	3,014,921

	Stockholders’ equity	3,598,660		1	(1	)	3,598,660
	Total liabilities and equity	$	6,613,582	1	(2	)	6,613,581

	June 30, 2014

	(In thousands)

		Parent		Guarantor	Eliminations		Consolidated
		Parent		Subsidiaries	Eliminations		Consolidated
	Assets
	Current assets:
	Cash and cash equivalents	$	19,273	—	—		19,273
	Other	367,955		1	(1	)	367,955
	Total current assets	387,228		1	(1	)	387,228

	Property and equipment, net	7,211,793		—	—		7,211,793
	Other long-term assets	446,187		—	—		446,187
	Investment in subsidiary	1		—	(1	)	—
		$	8,045,209	1	(2	)	8,045,208

	Liabilities and Stockholders’ Equity

	Current liabilities	$	860,714	—	—		860,714
	Long-term debt	3,370,636		—	—		3,370,636
	Other long-term liabilities	290,631		—	—		290,631
	Due to subsidiary	1		—	(1	)	—
	Total liabilities	4,521,982		—	(1	)	4,521,981

	Stockholders’ equity	3,523,227		1	(1	)	3,523,227
	Total liabilities and equity	$	8,045,209	1	(2	)	8,045,208

Summary_of_Significant_Account1

Summary of Significant Accounting Policies (Policies)	6 Months Ended
Summary of Significant Accounting Policies (Policies)	Jun. 30, 2014
Summary of Significant Accounting Policies	'
Basis of Presentation	'
	Basis of Presentation

	These consolidated financial statements have been prepared pursuant to the rules and regulations of the SEC applicable to interim financial information and should be read in the context of the December 31, 2013 consolidated financial statements and notes thereto for a more complete understanding of the Company’s operations, financial position, and accounting policies. The December 31, 2013 consolidated financial statements have been filed with the SEC in the Company’s Annual Report on Form 10-K for the year ended December 31, 2013.

	The accompanying unaudited condensed consolidated financial statements of the Company have been prepared in accordance with accounting principles generally accepted in the United States (“GAAP”) for interim financial information, and, accordingly, do not include all of the information and footnotes required by GAAP for complete consolidated financial statements. In the opinion of management, the accompanying unaudited condensed consolidated financial statements include all adjustments (consisting of normal and recurring accruals) considered necessary to present fairly the Company’s financial position as of June 30, 2014, and the results of its operations for the three and six months ended June 30, 2013 and 2014, and its cash flows for the six months ended June 30, 2013 and 2014. The Company has no items of other comprehensive income or loss; therefore, our net loss is identical to our comprehensive loss. All significant intercompany accounts and transactions have been eliminated. Operating results for the period ended June 30, 2014 are not necessarily indicative of the results that may be expected for the full year because of the impact of fluctuations in prices received for natural gas, NGLs, and oil, natural production declines, the uncertainty of exploration and development drilling results, and other factors.

	The Company’s exploration and production activities are accounted for under the successful efforts method.

	Income from discontinued operations for the three and six months ended June 30, 2014 results from the downward adjustment of certain liabilities recorded upon the sale of our Arkoma Basin assets in 2012 because of resolution of such liabilities.

	As of the date these financial statements were filed with the SEC, the Company completed its evaluation of potential subsequent events for disclosure and no items requiring disclosure were identified, except an amendment to our senior secured revolving bank credit facility as described in note 3.

Use of Estimates	'
	Use of Estimates

	The preparation of consolidated financial statements in conformity with generally accepted accounting principles in the United States requires management to make estimates and assumptions that affect the reported assets and liabilities and disclosure of contingent assets and liabilities at the date of the consolidated financial statements and the reported amounts of revenues and expenses during the reporting period. Changes in facts and circumstances or discovery of new information may result in revised estimates, and actual results could differ from those estimates.

	The Company’s consolidated financial statements are based on a number of significant estimates including estimates of gas and oil reserve quantities, which are the basis for the calculation of depreciation, depletion, amortization and impairment of oil and gas properties. Reserve estimates by their nature are inherently imprecise.

Risks and Uncertainties	'
	Risks and Uncertainties

	Historically, the market for natural gas, NGLs, and oil has experienced significant price fluctuations. The price fluctuations can result from variations in weather, levels of production in the region, availability of transportation capacity to other regions of the country, and various other factors. Increases or decreases in prices received could have a significant impact on the Company’s future results of operations.

Cash and Cash Equivalents	'
	Cash and Cash Equivalents

	The Company considers all liquid investments purchased with an initial maturity of three months or less to be cash equivalents. The carrying value of cash and cash equivalents approximates fair value due to the short-term nature of these instruments.

Derivative Financial Instruments	'
	Derivative Financial Instruments

	In order to manage its exposure to oil and gas price volatility, the Company enters into derivative transactions from time to time, including commodity swap agreements, basis swap agreements, collar agreements, and other similar agreements relating to the price risk associated with a portion of its production. To the extent legal right of offset with a counterparty exists, the Company reports derivative assets and liabilities on a net basis. The Company has exposure to credit risk to the extent the counterparty is unable to satisfy its settlement obligation. The Company actively monitors the creditworthiness of counterparties and assesses the impact, if any, on its derivative position.

	The Company records derivative instruments on the consolidated balance sheets as either an asset or liability measured at fair value and records changes in the fair value of derivatives in current earnings as they occur. Changes in the fair value of commodity derivatives are classified as revenues.

Income Taxes	'
	*Income Taxes*

	The Company recognizes deferred tax assets and liabilities for temporary differences resulting from net operating loss carryforwards for income tax purposes and the differences between the financial statement and tax basis of assets and liabilities. The effect of changes in the tax laws or tax rates is recognized in income in the period such changes are enacted. Deferred tax assets are reduced by a valuation allowance, when, in the opinion of management, it is more likely than not that some portion or all of the deferred tax assets will not be realized.

	Unrecognized tax benefits represent potential future tax obligations for uncertain tax positions taken on previously filed tax returns that may not ultimately be sustained. The Company recognizes interest expense related to unrecognized tax benefits in interest expense and fines and penalties as income tax expense.

Fair Value Measurements	'
	Fair Value Measurements

	FASB ASC Topic 820, Fair Value Measurements and Disclosures, clarifies the definition of fair value, establishes a framework for measuring fair value, and expands disclosures about fair value measurements. This guidance also relates to all nonfinancial assets and liabilities that are not recognized or disclosed on a recurring basis (e.g., those measured at fair value in a business combination, the initial recognition of asset retirement obligations, and impairments of proved oil and gas properties, and other long-lived assets). The fair value is the price that the Company estimates would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date. A fair value hierarchy is used to prioritize input to valuation techniques used to estimate fair value. An asset or liability subject to the fair value requirements is categorized within the hierarchy based on the lowest level of input that is significant to the fair value measurement. The Company’s assessment of the significance of a particular input to the fair value measurement in its entirety requires judgment and considers factors specific to the asset or liability. The highest priority (Level 1) is given to unadjusted quoted market prices in active markets for identical assets or liabilities, and the lowest priority (Level 3) is given to unobservable inputs. Level 2 inputs are data, other than quoted prices included within Level 1 that are observable for the asset or liability, either directly or indirectly. Instruments which are valued using Level 2 inputs include nonexchange traded derivatives such as over-the-counter commodity price swaps, basis swaps, and interest rate swaps. Valuation models used to measure fair value of these instruments consider various Level 2 inputs including (i) quoted forward prices for commodities, (ii) time value, (iii) quoted forward interest rates, (iv) current market prices and contractual prices for the underlying instruments, (v) risk of nonperformance by the Company and the counterparty, and (vi) other relevant economic measures.

Industry Segments and Geographic Information	'
	Industry Segments and Geographic Information

	Management has evaluated how the Company is organized and managed and have identified the following operating segments: (1) the exploration, development, and production of natural gas, NGLs, and oil, (2) gathering and compression, and (3) fresh water distribution.

	All of our assets are located in the United States and all of our revenues are attributable to customers located in the United States.

Marketing Revenues and Expenses	'
	Marketing Revenues and Expenses

	In 2014 the Company began activities to purchase and sell third-party natural gas and to market its excess firm transportation capacity in order to utilize excess firm transportation capacity. Marketing revenues include sales of third-party gas and revenues from the release of firm transportation capacity to others. Marketing expenses include the cost of purchased third-party natural gas. The Company classifies firm transportation costs related to capacity contracted for in advance of having sufficient production and infrastructure to fully utilize the capacity (excess capacity) as marketing expenses since it is marketing this excess capacity to third parties. Firm transportation for which the Company has sufficient production capacity (even though it may not use the capacity because of alternative delivery points with favorable pricing) is considered unutilized capacity. The costs of unutilized capacity are charged to transportation expense.

Reclassifications	'
	Reclassifications

	Certain reclassifications have been made to prior periods’ financial information related to fresh water distribution assets to conform to the 2014 presentation.

Earnings (loss) per share	'
	Earnings (loss) per share

	Because of the losses incurred for both the three and six months ended June 30, 2014, the effect of options and restricted stock awards is antidilutive and loss per share and loss per share-assuming dilution was calculated based on the weighted average number of shares outstanding of 262,049,659. Earnings per common share and earnings per common share—assuming dilution for the three and six months ended June 30, 2013 were calculated as if the shares issued in the corporate reorganization and IPO described in note 1 were outstanding as of January 1, 2013.

LongTerm_Debt_Tables

Long-Term Debt (Tables)	6 Months Ended
Long-Term Debt (Tables)	Jun. 30, 2014
Long-Term Debt	'
Schedule of long-term debt	'
	The Company had long-term debt as follows at December 31, 2013 and June 30, 2014 (in thousands):

		2013		2014
	Bank credit facility(a)	$	288,000	1,240,000
	7.25% senior notes due 2019(b)	260,000		—
	6.00% senior notes due 2020(c)	525,000		525,000
	5.375% senior notes due 2021(d)	1,000,000		1,000,000
	5.125% senior notes due 2022(e)	—		600,000
	Net unamortized premium	5,999		5,636
		$	2,078,999	3,370,636

Asset_Retirement_Obligations_T

Asset Retirement Obligations (Tables)	6 Months Ended
	Jun. 30, 2014
Asset Retirement Obligations	'
Schedule of reconciliation of asset retirement obligations	'
	The following is a reconciliation of the Company’s asset retirement obligations for the six months ended June 30, 2014 (in thousands). This amount is included in other long-term liabilities on the accompanying Condensed Consolidated Balance Sheet.

	Asset retirement obligations—beginning of period	$	11,859
	Obligations incurred	618
	Accretion expense	611
	Asset retirement obligations—end of period	$	13,088

StockBased_Compensation_Tables

Stock-Based Compensation (Tables)	6 Months Ended
Stock-Based Compensation (Tables)	Jun. 30, 2014
Stock-Based Compensation	'
Schedule of stock-based compensation expense	'
	Our stock-based compensation expense is as follows for the six months ended June 30, 2014 (in thousands):

	Profits interests awards (see note 1)	$	52,768
	Restricted stock awards	8,596
	Stock options	247
	Total expense	$	61,611

Summary of restricted stock and restricted stock unit awards activity	'
	A summary of restricted stock and restricted stock unit awards activity during the six months ended June 30, 2014 is as follows:

		Number of		Weighted		Aggregate
		shares		average		intrinsic value
				grant date		(in thousands)
				fair value
	Total granted and unvested, December 31, 2013	45,093		$	54.27	$	2,861
	Granted	1,923,448		$	65	126,236
	Vested	—		—		—
	Forfeited	(3,323	)	$	58.4	(218		)
	Total awarded and unvested—June 30, 2014	1,965,218		$	64.82	$	128,977

Summary of stock option activity	'
	A summary of stock option activity for the six months ended June 30, 2014 is as follows:

		Stock		Weighted		Weighted		Intrinsic
		options		average		average		value
				exercise		remaining		(in thousands)
				price		contractual
						life
	Outstanding at December 31, 2013	70,339		$	54.15	9.79		$	653
	Options granted	—		—		—		—
	Options exercised	—		—		—		—
	Options cancelled	—		—		—		—
	Options expired	—		—		—		—
	Outstanding at June 30, 2014	70,339		$	54.15	9.29		$	807
	Expected to vest as of June 30, 2014	70,339		$	54.15	9.29		$	807
	Exercisable at June 30, 2014	—		—		—		—

Schedule of information regarding weighted average fair value of options granted and the assumptions used to determine fair value	'
	The following table presents information regarding the weighted average fair value for options granted and the assumptions used to determine fair value.

	Dividend yield	—		%
	Volatility	35		%
	Risk-free interest rate	1.48		%
	Expected life (years)	6.17
	Weighted average fair value of options granted	$	20.2

Derivative_Instruments_Tables

Derivative Instruments (Tables)	6 Months Ended
Derivative Instruments (Tables)	Jun. 30, 2014
Derivative Instruments	'
Schedule of outstanding commodity derivatives	'
	As of June 30, 2014, the Company’s fixed price natural gas and oil swaps positions from July 1, 2014 through December 31, 2019 are summarized in the following table.

		Natural gas		Oil		Weighted
		MMbtu/day		Bbls/day		average index
						price
	Three Months ending September 30, 2014:
	TCO	210,000		—		$	5.01
	Dominion South	160,000		—		$	5.04
	NYMEX	340,000		—		$	4.08
	CGTLA	10,000		—		$	3.82
	NYMEX-WTI	—		3,000		$	94.13
	Total	720,000		3,000

	Three Months ending December 31, 2014:
	TCO	210,000		—		$	5.24
	Dominion South	160,000		—		$	5.27
	NYMEX	340,000		—		$	4.18
	CGTLA	10,000		—		$	3.98
	NYMEX-WTI	—		3,000		$	94.13
	Total	720,000		3,000

	Year ending December 31, 2015:
	TCO	120,000				$	5.01
	Dominion South	230,000				$	5.6
	NYMEX	260,000				$	4.13
	CGTLA	40,000				$	4
	2015 Total	650,000

	Year ending December 31, 2016:
	TCO	60,000				$	4.91
	Dominion South	272,500				$	5.35
	NYMEX	140,000				$	4.17
	CGTLA	170,000				$	4.09
	2016 Total	642,500

	Year ending December 31, 2017:
	NYMEX	290,000				$	4.38
	CGTLA	420,000				$	4.27
	CCG	70,000				$	4.57
	2017 Total	780,000

	Year ending December 31, 2018:
	NYMEX	710,000				$	4.6

	Year ending December 31, 2019:
	NYMEX	467,500				$	4.41

Tabular disclosure of commodity derivatives basis differential positions which settle on the pricing index to basis differential of Columbia Gas (TCO) to the NYMEX Henry Hub natural gas price.	'
	In addition, the Company has entered into natural gas basis differential positions which settle on the pricing index to basis differential of Columbia Gas (TCO) to the NYMEX Henry Hub natural gas price as follows:

		Natural gas		Hedged
		MMbtu/day		Differential

	Year ending December 31, 2015:	390,000		$	(0.35	)

	Year ending December 31, 2016:	170,000		$	(0.41	)

	Year ending December 31, 2017:	90,000		$	(0.50	)

Summary of the fair values of derivative instruments, which are not designated as hedges for accounting purposes	'
	The following is a summary of the fair values of derivative instruments not designated as hedges for accounting purposes and where such values are recorded in the consolidated balance sheets as of December 31, 2013 and June 30, 2014. None of the Company’s derivative instruments are designated as hedges for accounting purposes.

		December 31, 2013					June 30, 2014
		Balance sheet		Fair value			Balance sheet		Fair value
		location		Fair value			location		Fair value
				(In thousands)					(In thousands)
	Asset derivatives not designated as hedges for accounting purposes:
	Commodity contracts	Current assets		$	183,000		Current assets		$	175,286
	Commodity contracts	Long-term assets		677,780			Long-term assets		354,254

	Total asset derivatives			860,780					529,540

	Liability derivatives not designated as hedges for accounting purposes:
	Commodity contracts	Current liabilities		646			Current liabilities		11,907
	Commodity contracts	Long-term liabilities		—			Long-term liabilities		30,076

	Total liability derivatives			646					41,983

	Net derivatives			$	860,134				$	487,557

Schedule of gross amounts of recognized derivative assets and liabilities, the amounts offset under netting arrangements with counterparties, and the resulting net amounts	'
	The following tables present the gross amounts of recognized derivative assets and liabilities, the amounts offset under netting arrangements with counterparties, and the resulting net amounts presented in the condensed consolidated balance sheets for the periods presented, all at fair value (in thousands):

		December 31, 2013							June 30, 2014
		Gross			Gross amounts		Net amounts		Gross			Gross amounts		Net amounts
		amounts on			offset on		of assets		amounts on			offset on		of assets
		balance sheet			balance sheet		(liabilities)		balance sheet			balance sheet		(liabilities)
							on balance							on balance
							sheet							sheet
	Commodity derivative assets	$	887,034		(26,254	)	860,780		$	632,885		(103,345	)	529,540
	Commodity derivative liabilities	$	(646	)	—		(646	)	$	(55,818	)	13,835		(41,983	)

Summary of derivative fair value gains (losses)	'
	The following is a summary of derivative fair value gains (losses) and where such values are recorded in the consolidated statements of operations for the three and six months ended June 30, 2013 and 2014 (in thousands):

		Statement of		Three months ended					Six months ended
		operations		June 30					June 30
		location		2013			2014		2013		2014
	Commodity derivative fair value gains (losses)	Revenue		$	195,483		(123,766	)	123,542		(372,695	)

Segment_Information_Tables

Segment Information (Tables)	6 Months Ended
Segment Information (Tables)	Jun. 30, 2014
Segment Information	'
Schedule of operating results and assets of reportable segments	'
	The operating results and assets of the Company’s reportable segments were as follows for the three months ended June 30, 2013 and 2014 (in thousands):

		Exploration			Gathering and		Fresh water	Elimination of		Consolidated
		and			compression		distribution	intersegment		total
		production						transactions
	2013:00:00
	Revenue:
	Third-party	$	387,144		—		—	—		387,144
	Intersegment	—			3,539		8,441	(11,980	)	—
		$	387,144		3,539		8,441	(11,980	)	387,144

	Operating income (loss)	$	250,038		(762	)	6,525	(7,415	)	248,386
	Segment assets	$	4,802,643		332,782		57,251	(367,528	)	4,825,148
	Capital expenditures for segment assets	$	516,673		95,762		27,947	(7,652	)	632,730

		Exploration			Gathering and		Fresh water	Elimination of		Consolidated
		and			compression		distribution	intersegment		total
		production						transactions
	2014:00:00
	Revenue:
	Third-party	$	307,773		2,017		1,548	—		311,338
	Intersegment	—			14,906		38,970	(53,876	)	—
		$	307,773		16,923		40,518	(53,876	)	311,338

	Operating income (loss)	$	(2,023	)	290		23,498	(27,068	)	(5,303	)
	Segment assets	$	7,641,668		898,269		348,629	(843,358	)	8,045,208
	Capital expenditures for segment assets	$	817,833		154,144		39,897	(28,776	)	983,098

	The operating results and assets of the Company’s reportable segments were as follows for the six months ended June 30, 2013 and 2014 (in thousands):

		Exploration			Gathering and		Fresh water	Elimination of		Consolidated
		and			compression		distribution	intersegment		total
		production						transactions
	2013:00:00
	Revenue:
	Third-party	$	448,598		—		—	—		448,598
	Intersegment	—			5,492		12,806	(18,298	)	—
		$	448,598		5,492		12,806	(18,298	)	448,598

	Operating income (loss)	$	203,128		(1,793	)	9,696	(11,114	)	199,917
	Segment assets	$	4,802,643		332,782		57,251	(367,528	)	4,825,148
	Capital expenditures for segment assets	$	1,005,152		151,737		36,967	(11,473	)	1,182,383

		Exploration			Gathering and		Fresh water	Elimination of		Consolidated
		and			compression		distribution	intersegment		total
		production						transactions
	2014:00:00
	Revenue:
	Third-party	$	472,456		2,947		4,142	—		479,545
	Intersegment	—			25,749		61,135	(86,884	)	—
		$	472,456		28,696		65,277	(86,884	)	479,545

	Operating income (loss)	$	(106,403	)	1,239		38,115	(42,333	)	(109,382	)
	Segment assets	$	7,641,668		898,269		348,629	(843,358	)	8,045,208
	Capital expenditures for segment assets	$	1,399,877		261,667		99,927	(46,667	)	1,714,804

Subsidiary_Guarantors_Tables

Subsidiary Guarantors (Tables)	6 Months Ended
Subsidiary Guarantors (Tables)	Jun. 30, 2014
Subsidiary Guarantors	'
Schedule of condensed consolidated balance sheets	'
	Condensed Consolidating Balance Sheets

	December 31, 2013

	(In thousands)

		Parent		Guarantor	Eliminations		Consolidated
		Parent		Subsidiaries	Eliminations		Consolidated
	Assets
	Current assets:
	Cash and cash equivalents	$	17,487	—	—		17,487
	Other	316,077		1	(1	)	316,077
	Total current assets	333,564		1	(1	)	333,564

	Property and equipment, net	5,559,656		—	—		5,559,656
	Other long-term assets	720,361		—	—		720,361
	Investment in subsidiary	1		—	(1	)	—
		$	6,613,582	1	(2	)	6,613,581

	Liabilities and Stockholders’ Equity

	Current liabilities	$	622,229	—	—		622,229
	Long-term debt	2,078,999		—	—		2,078,999
	Other long-term liabilities	313,693		—	—		313,693
	Due to subsidiary	1		—	(1	)	—
	Total liabilities	3,014,922		—	(1	)	3,014,921

	Stockholders’ equity	3,598,660		1	(1	)	3,598,660
	Total liabilities and equity	$	6,613,582	1	(2	)	6,613,581

	June 30, 2014

	(In thousands)

		Parent		Guarantor	Eliminations		Consolidated
		Parent		Subsidiaries	Eliminations		Consolidated
	Assets
	Current assets:
	Cash and cash equivalents	$	19,273	—	—		19,273
	Other	367,955		1	(1	)	367,955
	Total current assets	387,228		1	(1	)	387,228

	Property and equipment, net	7,211,793		—	—		7,211,793
	Other long-term assets	446,187		—	—		446,187
	Investment in subsidiary	1		—	(1	)	—
		$	8,045,209	1	(2	)	8,045,208

	Liabilities and Stockholders’ Equity

	Current liabilities	$	860,714	—	—		860,714
	Long-term debt	3,370,636		—	—		3,370,636
	Other long-term liabilities	290,631		—	—		290,631
	Due to subsidiary	1		—	(1	)	—
	Total liabilities	4,521,982		—	(1	)	4,521,981

	Stockholders’ equity	3,523,227		1	(1	)	3,523,227
	Total liabilities and equity	$	8,045,209	1	(2	)	8,045,208

Organization_Details

Organization (Details) (USD $)	3 Months Ended	6 Months Ended	12 Months Ended		0 Months Ended			3 Months Ended	6 Months Ended	18 Months Ended
	Jun. 30, 2014	Jun. 30, 2014	Dec. 31, 2013	Oct. 15, 2013	Oct. 16, 2013	Jun. 30, 2013	Oct. 15, 2013	Jun. 30, 2014	Jun. 30, 2014	Jun. 30, 2014
	Jun. 30, 2014	Jun. 30, 2014	Dec. 31, 2013	Oct. 15, 2013	IPO	Antero Resources LLC	Antero Investment	Profits interests awards	Profits interests awards	Profits interests awards
Corporate reorganization and initial public offering	'	'	'	'	'	'	'	'	'	'
Ownership percentage	'	'	'	'	'	100.00%	100.00%	'	'	'
Common stock, shares issued	262,049,659	262,049,659	262,049,659	224,375,000	'	'	'	'	'	'
Common stock, shares outstanding	262,049,659	262,049,659	262,049,659	224,375,000	'	'	'	'	'	'
Number of additional shares of common stock issued	'	'	'	'	37,674,659	'	'	'	'	'
Common stock price (in dollars per share)	'	'	'	'	$44	'	'	'	'	'
Net proceeds from issuance of additional shares of common stock	'	'	'	'	$1,600,000,000	'	'	'	'	'
Stock compensation expense recognized	32,474,000	61,611,000	365,000,000	'	'	'	'	24,100,000	52,768,000	418,000,000
Additional stock compensation to be recognized over the remaining service period	'	'	'	'	'	'	'	'	$69,000,000	'

Summary_of_Significant_Account2

Summary of Significant Accounting Policies (Details) (USD $)	3 Months Ended	6 Months Ended
In Millions, except Share data, unless otherwise specified	Jun. 30, 2014	Jun. 30, 2014
Summary of Significant Accounting Policies	'	'
Other comprehensive income (loss)	'	$0
Earnings (loss) per share	'	'
Weighted average number of shares outstanding	262,049,659	262,049,659

LongTerm_Debt_Details

Long-Term Debt (Details) (USD $)

3 Months Ended

6 Months Ended

0 Months Ended

6 Months Ended

0 Months Ended

6 Months Ended

Jun. 30, 2014

23-May-14

Dec. 31, 2013

Jun. 30, 2014

Dec. 31, 2013

Jul. 28, 2014

Jun. 30, 2014

23-May-14

Jun. 30, 2014

Dec. 31, 2013

Jun. 30, 2014

Dec. 31, 2013

Feb. 04, 2013

Nov. 19, 2012

Jun. 30, 2014

Dec. 31, 2013

Nov. 05, 2013

Jun. 30, 2014

6-May-14

Jun. 30, 2014

Dec. 31, 2013

Jul. 28, 2014

Jun. 30, 2014

Dec. 31, 2013

23-May-14

Bank credit facility

7.25% senior notes due 2019

6.00% senior notes due 2020

5.375% senior notes due 2021

5.125% senior notes due 2022

Net unamortized premium

Midstream Facility

Stand-alone revolving note

5.125% senior subordinated notes due 2022

Subsequent event

Minimum

Maximum

Antero Finance

Maximum

On or after November 1, 2016

On or after November 1, 2019

Prior to November 1, 2016

On or before November 1, 2014

Control prior to May 1, 2016

Minimum

Prior to December 1, 2015

On or after June 1, 2017

On or after June 1, 2020

On or before June 1, 2015

Prior to June 1, 2017

Minimum

Subsequent event

On or after August 1, 2017

On or after December 1, 2015

On or after December 1, 2018

On or before December 1, 2015

Prior to December 1, 2015

Antero Finance

On or before November 1, 2014

On or before June 1, 2015

On or before December 1, 2015

Long- term Debt

Long-term debt

$3,370,636,000

$2,078,999,000

$1,240,000,000

$288,000,000

$260,000,000

$525,000,000

$1,000,000,000

$600,000,000

$5,636,000

$5,999,000

Interest rate (as a percent)

7.25%

6.00%

5.38%

5.13%

Maximum amount of the Credit Facility

3,500,000,000

25,000,000

Current borrowing base

3,000,000,000

Lender commitments before amendment

2,000,000,000

Lender commitments

2,500,000,000

400,000,000

Outstanding balance

1,240,000,000

288,000,000

Weighted average interest rate (as a percent)

2.03%

1.61%

Outstanding letters of credit

237,000,000

32,000,000

Commitment fees on the unused portion (as a percent)

0.38%

0.50%

Senior notes redeemed

260,000,000

Percentage of the principal amount of the debt instrument which the entity may redeem with the proceeds from initial public offering

100.00%

Loss on Early Extinguishment of Debt

-20,386,000

17,400,000

Deferred financing costs charged to loss on early extinguishment of debt

3,000,000

Senior notes issued

$225,000,000

$300,000,000

$1,000,000,000

$600,000,000

Issue price as percentage of par value

103.00%

Redemption price of the debt instrument in the event of change of control (as a percent)

100.00%

104.50%

100.00%

104.03%

100.00%

103.84%

101.00%

100.00%

Percentage of the principal amount of the debt instrument redeemed

110.00%

Percentage of the principal amount of the notes, plus accrued interest of the debt instrument redeemed

101.00%

105.38%

105.13%

Percentage of the principal amount of the debt instrument which the entity may redeem with the proceeds from certain equity offerings

35.00%

Redemption price of the debt instrument if redeemed with the proceeds of certain equity offerings (as a percent)

106.00%

Percentage of principal amount at which notes may be required to be repurchased in event of change of control

101.00%

Description of variable rate basis

'LIBOR or lender's prime rate

'lender's prime rate

Basis spread on variable rate (as a percent)

1.00%

Asset_Retirement_Obligations_D

Asset Retirement Obligations (Details) (USD $)	6 Months Ended
In Thousands, unless otherwise specified	Jun. 30, 2014
Asset Retirement Obligations	'
Asset retirement obligations - beginning of period	$11,859
Obligations incurred	618
Accretion expense	611
Asset retirement obligations - end of period	$13,088

StockBased_Compensation_Detail

Stock-Based Compensation (Details) (USD $)	3 Months Ended	6 Months Ended	12 Months Ended	3 Months Ended	6 Months Ended	18 Months Ended	6 Months Ended
In Thousands, except Share data, unless otherwise specified	Jun. 30, 2014	Jun. 30, 2014	Dec. 31, 2013	Jun. 30, 2014	Jun. 30, 2014	Jun. 30, 2014	Jun. 30, 2014	Jun. 30, 2014
	Jun. 30, 2014	Jun. 30, 2014	Dec. 31, 2013	Profits interests awards	Profits interests awards	Profits interests awards	Restricted stock awards	Stock options
Stock-Based Compensation	'	'	'	'	'	'	'	'
Number of stock-based compensation awards authorized	16,906,500	16,906,500	'	'	'	'	'	'
Number of shares available for future grant under the Plan	14,870,943	14,870,943	'	'	'	'	'	'
Stock-based compensation expense	'	'	'	'	'	'	'	'
Stock compensation expense recognized	$32,474	$61,611	$365,000	$24,100	$52,768	$418,000	$8,596	$247

StockBased_Compensation_Detail1

Stock-Based Compensation (Details 2) (USD $)	6 Months Ended
Stock-Based Compensation (Details 2) (USD $)	Jun. 30, 2014
Restricted stock awards	'
Number of shares	'
Total granted and unvested at the beginning of the period (in shares)	45,093
Granted (in shares)	1,923,448
Forfeited (in shares)	-3,323
Total awarded and unvested at the end of the period (in shares)	1,965,218
Weighted average grant date fair value	'
Total granted and unvested at the beginning of the period (in dollars per share)	$54.27
Granted (in dollars per share)	$65
Forfeited (in dollars per share)	$58.40
Total awarded and unvested at the end of the period (in dollars per share)	$64.82
Aggregate intrinsic value	'
Total awarded and unvested at the beginning of the period	$2,861,000
Granted	126,236,000
Forfeited	-218,000
Total awarded and unvested at the end of the period	128,977,000
Unrecognized stock-based compensation expense	$118,600,000
Restricted stock units \| Minimum	'
Aggregate intrinsic value	'
Weighted average period for recognizing unrecognized stock-based compensation expense	'3 years 6 months
Restricted stock units \| Maximum	'
Aggregate intrinsic value	'
Weighted average period for recognizing unrecognized stock-based compensation expense	'4 years

StockBased_Compensation_Detail2

Stock-Based Compensation (Details 3) (Stock options, USD $)	6 Months Ended	12 Months Ended
Stock-Based Compensation (Details 3) (Stock options, USD $)	Jun. 30, 2014	Dec. 31, 2013
Stock options	'	'
Outstanding at the beginning of the period (in shares)	70,339	'
Outstanding at the end of the period (in shares)	70,339	70,339
Expected to vest (in shares)	70,339	'
Weighted average exercise price	'	'
Outstanding at the beginning of the period (in dollars per share)	$54.15	'
Outstanding at the end of the period (in dollars per share)	$54.15	$54.15
Expected to vest (in dollars per share)	$54.15	'
Weighted average remaining contractual life	'	'
Outstanding at the beginning of the period	'9 years 3 months 14 days	'9 years 9 months 14 days
Outstanding at the end of the period	'9 years 3 months 14 days	'9 years 9 months 14 days
Expected to vest	'9 years 3 months 14 days	'
Intrinsic Value	'	'
Outstanding at the beginning of the period	$653,000	'
Outstanding at the end of the period	807,000	653,000
Expected to vest	807,000	'
Weighted-average assumptions used to calculate fair value of stock options granted	'	'
Dividend yield (as a percent)	0.00%	'
Volatility (as a percent)	35.00%	'
Risk-free interest rate (as a percent)	1.48%	'
Expected life	'6 years 2 months 1 day	'
Weighted average fair value of options granted (in dollars per share)	$20.20	'
Additional disclosures	'	'
Unrecognized stock-based compensation expense	$1,100,000	'
Weighted average period for recognizing unrecognized stock-based compensation expense	'3 years	'
Minimum	'	'
Stock-based compensation	'	'
Vesting period	'1 year	'
Maximum	'	'
Stock-based compensation	'	'
Vesting period	'4 years	'
Contractual life	'10 years	'

Financial_Instruments_Details

Financial Instruments (Details) (Recurring, Level 2 market data, USD $)	Jun. 30, 2014	Dec. 31, 2013
In Billions, unless otherwise specified	Jun. 30, 2014	Dec. 31, 2013
Recurring \| Level 2 market data	'	'
Financial Instruments	'	'
Fair value of senior notes	$2.20	$1.90

Derivative_Instruments_Details

Derivative Instruments (Details) (Swaps)	Jun. 30, 2014
Natural gas \| Term Three Months Ended 30, September 2014 [Member]	'
Derivative Instruments	'
Notional amount (MMBtu/Bbls per day)	720,000
Natural gas \| Term Three Months Ended 31, December 2014 [Member]	'
Derivative Instruments	'
Notional amount (MMBtu/Bbls per day)	720,000
Natural gas \| Year ending December 31, 2015	'
Derivative Instruments	'
Notional amount (MMBtu/Bbls per day)	650,000
Natural gas \| Year ending December 31, 2015 \| Basis differential positions	'
Derivative Instruments	'
Notional amount (MMBtu/Bbls per day)	390,000
Weighted average index price	-0.35
Natural gas \| Year ending December 31, 2016	'
Derivative Instruments	'
Notional amount (MMBtu/Bbls per day)	642,500
Natural gas \| Year ending December 31, 2016 \| Basis differential positions	'
Derivative Instruments	'
Notional amount (MMBtu/Bbls per day)	170,000
Weighted average index price	-0.41
Natural gas \| Year ending December 31, 2017	'
Derivative Instruments	'
Notional amount (MMBtu/Bbls per day)	780,000
Natural gas \| Year ending December 31, 2017 \| Basis differential positions	'
Derivative Instruments	'
Notional amount (MMBtu/Bbls per day)	90,000
Weighted average index price	-0.5
Natural gas \| TCO \| Term Three Months Ended 30, September 2014 [Member]	'
Derivative Instruments	'
Notional amount (MMBtu/Bbls per day)	210,000
Weighted average index price	5.01
Natural gas \| TCO \| Term Three Months Ended 31, December 2014 [Member]	'
Derivative Instruments	'
Notional amount (MMBtu/Bbls per day)	210,000
Weighted average index price	5.24
Natural gas \| TCO \| Year ending December 31, 2015	'
Derivative Instruments	'
Notional amount (MMBtu/Bbls per day)	120,000
Weighted average index price	5.01
Natural gas \| TCO \| Year ending December 31, 2016	'
Derivative Instruments	'
Notional amount (MMBtu/Bbls per day)	60,000
Weighted average index price	4.91
Natural gas \| Dominion South \| Term Three Months Ended 30, September 2014 [Member]	'
Derivative Instruments	'
Notional amount (MMBtu/Bbls per day)	160,000
Weighted average index price	5.04
Natural gas \| Dominion South \| Term Three Months Ended 31, December 2014 [Member]	'
Derivative Instruments	'
Notional amount (MMBtu/Bbls per day)	160,000
Weighted average index price	5.27
Natural gas \| Dominion South \| Year ending December 31, 2015	'
Derivative Instruments	'
Notional amount (MMBtu/Bbls per day)	230,000
Weighted average index price	5.6
Natural gas \| Dominion South \| Year ending December 31, 2016	'
Derivative Instruments	'
Notional amount (MMBtu/Bbls per day)	272,500
Weighted average index price	5.35
Natural gas \| NYMEX \| Term Three Months Ended 30, September 2014 [Member]	'
Derivative Instruments	'
Notional amount (MMBtu/Bbls per day)	340,000
Weighted average index price	4.08
Natural gas \| NYMEX \| Term Three Months Ended 31, December 2014 [Member]	'
Derivative Instruments	'
Notional amount (MMBtu/Bbls per day)	340,000
Weighted average index price	4.18
Natural gas \| NYMEX \| Year ending December 31, 2015	'
Derivative Instruments	'
Notional amount (MMBtu/Bbls per day)	260,000
Weighted average index price	4.13
Natural gas \| NYMEX \| Year ending December 31, 2016	'
Derivative Instruments	'
Notional amount (MMBtu/Bbls per day)	140,000
Weighted average index price	4.17
Natural gas \| NYMEX \| Year ending December 31, 2017	'
Derivative Instruments	'
Notional amount (MMBtu/Bbls per day)	290,000
Weighted average index price	4.38
Natural gas \| NYMEX \| Year ending December 31, 2018	'
Derivative Instruments	'
Notional amount (MMBtu/Bbls per day)	710,000
Weighted average index price	4.6
Natural gas \| NYMEX \| Year ending December 31, 2019	'
Derivative Instruments	'
Notional amount (MMBtu/Bbls per day)	467,500
Weighted average index price	4.41
Natural gas \| CGTLA \| Term Three Months Ended 30, September 2014 [Member]	'
Derivative Instruments	'
Notional amount (MMBtu/Bbls per day)	10,000
Weighted average index price	3.82
Natural gas \| CGTLA \| Term Three Months Ended 31, December 2014 [Member]	'
Derivative Instruments	'
Notional amount (MMBtu/Bbls per day)	10,000
Weighted average index price	3.98
Natural gas \| CGTLA \| Year ending December 31, 2015	'
Derivative Instruments	'
Notional amount (MMBtu/Bbls per day)	40,000
Weighted average index price	4
Natural gas \| CGTLA \| Year ending December 31, 2016	'
Derivative Instruments	'
Notional amount (MMBtu/Bbls per day)	170,000
Weighted average index price	4.09
Natural gas \| CGTLA \| Year ending December 31, 2017	'
Derivative Instruments	'
Notional amount (MMBtu/Bbls per day)	420,000
Weighted average index price	4.27
Natural gas \| CCG \| Year ending December 31, 2017	'
Derivative Instruments	'
Notional amount (MMBtu/Bbls per day)	70,000
Weighted average index price	4.57
Oil \| Term Three Months Ended 30, September 2014 [Member]	'
Derivative Instruments	'
Notional amount (MMBtu/Bbls per day)	3,000
Oil \| Term Three Months Ended 31, December 2014 [Member]	'
Derivative Instruments	'
Notional amount (MMBtu/Bbls per day)	3,000
Oil \| NYMEX-WTI \| Term Three Months Ended 30, September 2014 [Member]	'
Derivative Instruments	'
Notional amount (MMBtu/Bbls per day)	3,000
Weighted average index price	94.13
Oil \| NYMEX-WTI \| Term Three Months Ended 31, December 2014 [Member]	'
Derivative Instruments	'
Notional amount (MMBtu/Bbls per day)	3,000
Weighted average index price	94.13

Derivative_Instruments_Details1

Derivative Instruments (Details 2) (USD $)	Jun. 30, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified	Jun. 30, 2014	Dec. 31, 2013
Fair value of derivative instruments	'	'
Current portion of fair value of derivative assets	$175,286	$183,000
Noncurrent portion of fair value of derivative assets	354,254	677,780
Current portion of fair value of derivative liability	11,907	646
Noncurrent portion of fair value of derivative liability	30,076	'
Commodity contracts	'	'
Fair value of derivative instruments	'	'
Total asset derivatives	529,540	860,780
Total liability derivatives	-41,983	-646
Derivatives not designated as hedges for accounting purposes \| Commodity contracts	'	'
Fair value of derivative instruments	'	'
Current portion of fair value of derivative assets	175,286	183,000
Noncurrent portion of fair value of derivative assets	354,254	677,780
Total asset derivatives	529,540	860,780
Current portion of fair value of derivative liability	11,907	646
Noncurrent portion of fair value of derivative liability	30,076	'
Total liability derivatives	41,983	646
Net derivatives	$487,557	$860,134
Derivatives designated as hedges for accounting purposes	'	'
Fair value of derivative instruments	'	'
Number of derivative instruments held	0	'

Derivative_Instruments_Details2

Derivative Instruments (Details 3) (Commodity derivative, USD $)	Jun. 30, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified	Jun. 30, 2014	Dec. 31, 2013
Commodity derivative	'	'
Commodity derivative assets	'	'
Gross amounts on balance sheet	$632,885	$887,034
Gross amounts offset on balance sheet	-103,345	-26,254
Total asset derivatives	529,540	860,780
Commodity derivative liabilities	'	'
Gross amounts on balance sheet	-55,818	-646
Gross amounts offset on balance sheet	13,835	'
Total liability derivatives	($41,983)	($646)

Derivative_Instruments_Details3

Derivative Instruments (Details 4) (Revenue, USD $)	3 Months Ended		6 Months Ended
In Thousands, unless otherwise specified	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Revenue	'	'	'	'
Summary of realized and unrealized gains (losses) on derivative instruments	'	'	'	'
Commodity derivative fair value gains (losses)	($123,766)	$195,483	($372,695)	$123,542

Segment_Information_Details

Segment Information (Details) (USD $)	3 Months Ended		6 Months Ended
In Thousands, unless otherwise specified	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013	Dec. 31, 2013
Operating results and assets of reportable segments	'	'	'	'	'
Revenue	$311,338	$387,144	$479,545	$448,598	'
Operating income (loss)	-5,303	248,386	-109,382	199,917	'
Segment assets	8,045,208	4,825,148	8,045,208	4,825,148	6,613,581
Capital expenditures for segment assets	983,098	632,730	1,714,804	1,182,383	'
Gathering and compression	'	'	'	'	'
Operating results and assets of reportable segments	'	'	'	'	'
Revenue	2,017	'	2,947	'	'
Fresh Water Distribution	'	'	'	'	'
Operating results and assets of reportable segments	'	'	'	'	'
Revenue	1,548	'	4,142	'	'
Operating segments \| Gathering and compression	'	'	'	'	'
Operating results and assets of reportable segments	'	'	'	'	'
Revenue	16,923	3,539	28,696	5,492	'
Operating income (loss)	290	-762	1,239	-1,793	'
Segment assets	898,269	332,782	898,269	332,782	'
Capital expenditures for segment assets	154,144	95,762	261,667	151,737	'
Operating segments \| Fresh Water Distribution	'	'	'	'	'
Operating results and assets of reportable segments	'	'	'	'	'
Revenue	40,518	8,441	65,277	12,806	'
Operating income (loss)	23,498	6,525	38,115	9,696	'
Segment assets	348,629	57,251	348,629	57,251	'
Capital expenditures for segment assets	39,897	27,947	99,927	36,967	'
Operating segments \| Exploration and production	'	'	'	'	'
Operating results and assets of reportable segments	'	'	'	'	'
Revenue	307,773	387,144	472,456	448,598	'
Operating income (loss)	-2,023	250,038	-106,403	203,128	'
Segment assets	7,641,668	4,802,643	7,641,668	4,802,643	'
Capital expenditures for segment assets	817,833	516,673	1,399,877	1,005,152	'
Elimination of intersegment transaction	'	'	'	'	'
Operating results and assets of reportable segments	'	'	'	'	'
Revenue	-53,876	-11,980	-86,884	-18,298	'
Operating income (loss)	-27,068	-7,415	-42,333	-11,114	'
Segment assets	-843,358	-367,528	-843,358	-367,528	'
Capital expenditures for segment assets	-28,776	-7,652	-46,667	-11,473	'
Elimination of intersegment transaction \| Gathering and compression	'	'	'	'	'
Operating results and assets of reportable segments	'	'	'	'	'
Revenue	14,906	3,539	25,749	5,492	'
Elimination of intersegment transaction \| Fresh Water Distribution	'	'	'	'	'
Operating results and assets of reportable segments	'	'	'	'	'
Revenue	$38,970	$8,441	$61,135	$12,806	'

Subsidiary_Guarantors_Details

Subsidiary Guarantors (Details) (USD $)	Jun. 30, 2014	Dec. 31, 2013	Jun. 30, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified	Jun. 30, 2014	Dec. 31, 2013	Jun. 30, 2013	Dec. 31, 2012
Current assets:	'	'	'	'
Cash and cash equivalents	$19,273	$17,487	$10,867	$18,989
Other	367,955	316,077	'	'
Total current assets	387,228	333,564	'	'
Property and equipment, net	7,211,793	5,559,656	'	'
Other long-term assets	446,187	720,361	'	'
Total assets	8,045,208	6,613,581	4,825,148	'
Liabilities and Stockholders' Equity	'	'	'	'
Current liabilities	860,714	622,229	'	'
Long-term debt	3,370,636	2,078,999	'	'
Other long-term liabilities	290,631	313,693	'	'
Total liabilities	4,521,981	3,014,921	'	'
Total stockholders' equity	3,523,227	3,598,660	'	'
Total liabilities and stockholders' equity	8,045,208	6,613,581	'	'
Reportable legal entity \| Parent Company	'	'	'	'
Current assets:	'	'	'	'
Cash and cash equivalents	19,273	17,487	'	'
Other	367,955	316,077	'	'
Total current assets	387,228	333,564	'	'
Property and equipment, net	7,211,793	5,559,656	'	'
Other long-term assets	446,187	720,361	'	'
Investment in subsidiary	1	1	'	'
Total assets	8,045,209	6,613,582	'	'
Liabilities and Stockholders' Equity	'	'	'	'
Current liabilities	860,714	622,229	'	'
Long-term debt	3,370,636	2,078,999	'	'
Other long-term liabilities	290,631	313,693	'	'
Due to subsidiary	1	1	'	'
Total liabilities	4,521,982	3,014,922	'	'
Total stockholders' equity	3,523,227	3,598,660	'	'
Total liabilities and stockholders' equity	8,045,209	6,613,582	'	'
Reportable legal entity \| Guarantor Subsidiary	'	'	'	'
Current assets:	'	'	'	'
Other	1	1	'	'
Total current assets	1	1	'	'
Total assets	1	1	'	'
Liabilities and Stockholders' Equity	'	'	'	'
Total stockholders' equity	1	1	'	'
Total liabilities and stockholders' equity	1	1	'	'
Eliminations	'	'	'	'
Current assets:	'	'	'	'
Other	-1	-1	'	'
Total current assets	-1	-1	'	'
Investment in subsidiary	-1	-1	'	'
Total assets	-2	-2	'	'
Liabilities and Stockholders' Equity	'	'	'	'
Due to subsidiary	-1	-1	'	'
Total liabilities	-1	-1	'	'
Total stockholders' equity	-1	-1	'	'
Total liabilities and stockholders' equity	($2)	($2)	'	'