EQGP 10-Q 26 Apr 18 2018 Q1 Quarterly report Financial data

Document and Entity Information

Document and Entity Information	3 Months Ended
	Mar. 31, 2018shares
Document and Entity Information
Entity Registrant Name	EQT GP Holdings, LP
Entity Central Index Key	1,632,933
Document Type	10-Q
Document Period End Date	Mar. 31, 2018
Amendment Flag	false
Current Fiscal Year End	--12-31
Entity Filer Category	Large Accelerated Filer
Entity Common Units, Unit Outstanding	266,165,000
Document Fiscal Year Focus	2,018
Document Fiscal Period Focus	Q1

Statements of Consolidated Oper

Statements of Consolidated Operations (Unaudited) - USD ($) shares in Thousands, $ in Thousands		3 Months Ended
		Mar. 31, 2018	Mar. 31, 2017
Income Statement [Abstract]
Operating revenues	[1]	$ 232,842	$ 200,072
Operating expenses:
Operating and maintenance	[2]	18,176	16,817
Selling, general and administrative	[2]	14,372	18,612
Depreciation and amortization		23,179	20,547
Total operating expenses		55,727	55,976
Operating income		177,115	144,096
Equity income	[3]	8,811	4,277
Other income		898	1,537
Net interest expense	[4]	10,817	7,922
Net income		176,007	141,988
Net income attributable to noncontrolling interests		95,334	80,612
Net income attributable to EQT GP Holdings, LP		$ 80,673	$ 61,376
Net income per common unit – basic and diluted (in dollars per share)		$ 0.30	$ 0.23
Weighted average common units outstanding – basic and diluted (in shares)		266,193	266,183
Cash distributions declared per unit (in dollars per share)	[5]	$ 0.258	$ 0.191
[1]	Operating revenues included affiliate revenues from EQT Corporation and subsidiaries (collectively, EQT) of $160.6 million and $143.4 million for the three months ended March 31, 2018 and 2017, respectively. See Note E.
[2]	Operating and maintenance expense included charges from EQT of $10.2 million and $9.9 million for the three months ended March 31, 2018 and 2017, respectively. Selling, general and administrative expense included charges from EQT of $13.2 million and $17.7 million for the three months ended March 31, 2018 and 2017, respectively. See Note E.
[3]	Represents equity income from Mountain Valley Pipeline, LLC (the MVP Joint Venture). See Note F.
[4]	Net interest expense included interest income on the Preferred Interest in EES of $1.7 million for the three months ended March 31, 2018 and 2017.
[5]	Represents the cash distributions declared related to the period presented. See Note I.

Statements of Consolidated Ope3

Statements of Consolidated Operations (Unaudited) (Parenthetical) - USD ($) $ in Thousands		3 Months Ended
		Mar. 31, 2018	Mar. 31, 2017
Operating and maintenance expense	[1]	$ 18,176	$ 16,817
Selling, general and administrative expense	[1]	14,372	18,612
EES
Interest income		1,700	1,700
EQT Corporation and Subsidiaries
Affiliate revenues		160,600	143,400
Operating and maintenance expense		10,200	9,900
Selling, general and administrative expense		$ 13,200	$ 17,700
[1]	Operating and maintenance expense included charges from EQT of $10.2 million and $9.9 million for the three months ended March 31, 2018 and 2017, respectively. Selling, general and administrative expense included charges from EQT of $13.2 million and $17.7 million for the three months ended March 31, 2018 and 2017, respectively. See Note E.

Statements of Consolidated Cash

Statements of Consolidated Cash Flows (Unaudited) - USD ($) $ in Thousands		3 Months Ended
		Mar. 31, 2018	Mar. 31, 2017
Cash flows from operating activities:
Net income		$ 176,007	$ 141,988
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization		23,179	20,547
Equity income	[1]	(8,811)	(4,277)
AFUDC – equity		(1,065)	(1,699)
Non-cash long-term compensation expense		586	451
Changes in other assets and liabilities:
Accounts receivable		(677)	(968)
Accounts payable		(2,679)	420
Due to/from EQT affiliates		(6,545)	366
Other assets and other liabilities		1,760	3,941
Net cash provided by operating activities		181,755	160,769
Cash flows from investing activities:
Capital expenditures		(84,014)	(62,947)
Capital contributions to the MVP Joint Venture		(117,019)	(19,760)
Principal payments received on the Preferred Interest		1,079	1,020
Net cash used in investing activities		(199,954)	(81,687)
Cash flows from financing activities:
Proceeds from EQM credit facility borrowings		254,000	50,000
Payments on EQM credit facility borrowings		(117,000)	(50,000)
(Payments on)/ proceeds from the EQGP Working Capital Facility		(47)	83
Distributions paid to noncontrolling interest unitholders of EQM		(60,239)	(49,955)
Distributions paid to EQGP unitholders		(64,944)	(47,111)
Capital contributions		12,873	216
Net cash provided by (used in) financing activities		24,643	(96,767)
Net change in cash and cash equivalents		6,444	(17,685)
Cash and cash equivalents at beginning of period		2,857	60,453
Cash and cash equivalents at end of period		9,301	42,768
Cash paid during the period for:
Interest, net of amount capitalized		11,595	9,412
Non-cash activity during the period for:
(Decrease) increase in capital contribution receivable from EQT		$ (10,074)	$ 758
[1]	Represents equity income from Mountain Valley Pipeline, LLC (the MVP Joint Venture). See Note F.

Consolidated Balance Sheets (Un

Consolidated Balance Sheets (Unaudited) - USD ($) $ in Thousands	Mar. 31, 2018	Dec. 31, 2017
Current assets:
Cash and cash equivalents	$ 9,301	$ 2,857
Accounts receivable (net of allowance for doubtful accounts of $453 and $446 as of March 31, 2018 and December 31, 2017, respectively)	29,481	28,804
Accounts receivable – affiliate	91,655	103,304
Other current assets	17,329	12,877
Total current assets	147,766	147,842
Property, plant and equipment	3,280,997	3,200,108
Less: accumulated depreciation	(416,957)	(396,049)
Net property, plant and equipment	2,864,040	2,804,059
Investment in unconsolidated entity	546,428	460,546
Other assets	135,750	137,178
Total assets	3,693,984	3,549,625
Current liabilities:
Accounts payable	48,212	47,042
Due to related party	25,039	33,206
Capital contribution payable to MVP Joint Venture	65,786	105,734
Accrued interest	11,376	10,926
Accrued liabilities	15,505	16,871
Total current liabilities	165,918	213,779
EQM credit facility borrowings	317,000	180,000
EQM senior notes	987,756	987,352
Regulatory and other long-term liabilities	20,880	20,273
Total liabilities	1,491,554	1,401,404
Equity:
Common (266,165,000 common units issued and outstanding at March 31, 2018 and December 31, 2017)	(994,989)	(1,013,913)
Noncontrolling interests	3,197,419	3,162,134
Total equity	2,202,430	2,148,221
Total liabilities and equity	$ 3,693,984	$ 3,549,625

Consolidated Balance Sheets (U6

Consolidated Balance Sheets (Unaudited) (Parenthetical) - USD ($) $ in Thousands	Mar. 31, 2018	Dec. 31, 2017
Statement of Financial Position [Abstract]
Allowance for doubtful accounts	$ 453	$ 446
Partners' capital common units issued (in shares)	266,165,000	266,165,000
Partners' capital common units outstanding (in shares)	266,165,000	266,165,000

Statements of Consolidated Equi

Statements of Consolidated Equity (Unaudited) - USD ($) $ in Thousands	Total	Common	Noncontrolling Interests
Beginning balance at Dec. 31, 2016	$ 1,992,722	$ (1,077,100)	$ 3,069,822
Increase (Decrease) in Partners' Capital [Roll Forward]
Net income	141,988	61,376	80,612
Capital contributions	974	974
Equity-based compensation plans	451	261	190
Distributions paid to noncontrolling interest unitholders of EQM	(49,955)		(49,955)
Distributions paid to EQGP unitholders	(47,111)	(47,111)
Ending balance at Mar. 31, 2017	2,039,069	(1,061,600)	3,100,669
Beginning balance at Dec. 31, 2017	2,148,221	(1,013,913)	3,162,134
Increase (Decrease) in Partners' Capital [Roll Forward]
Net income	176,007	80,673	95,334
Capital contributions	2,799	2,799
Equity-based compensation plans	586	325	261
Distributions paid to noncontrolling interest unitholders of EQM	(60,239)		(60,239)
Distributions paid to EQGP unitholders	(64,944)	(64,944)
Changes in ownership of EQM, net	0	71	(71)
Ending balance at Mar. 31, 2018	$ 2,202,430	$ (994,989)	$ 3,197,419

Financial Statements

Financial Statements	3 Months Ended
	Mar. 31, 2018
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Financial Statements	Financial Statements Organization EQT GP Holdings, LP and subsidiaries (collectively, EQGP) owns EQT's partnership interests in EQM, a growth-oriented Delaware limited partnership. EQT Midstream Services, LLC (EQM General Partner) is a direct wholly owned subsidiary of EQGP and is the general partner of EQM. EQT GP Services, LLC (EQGP General Partner) is an indirect wholly owned subsidiary of EQT and is the general partner of EQGP. EQGP has no independent operations or material assets other than its partnership interests in EQM. EQGP's financial statements differ from those of EQM primarily as a result of noncontrolling interest ownership attributable to the publicly held limited partner interests in EQM and additional expenses incurred by EQGP, which include selling, general and administrative expenses and net interest expense or income. Basis of Presentation The accompanying unaudited consolidated financial statements have been prepared in accordance with GAAP for interim financial information and with the requirements of Form 10-Q and Article 10 of Regulation S-X. Accordingly, they do not include all of the information and footnotes required by GAAP for complete financial statements. In the opinion of management, these unaudited consolidated financial statements include all adjustments (consisting of only normal recurring adjustments, unless otherwise disclosed in this Form 10-Q) necessary for a fair presentation of the financial position of EQGP as of March 31, 2018 and December 31, 2017 , and the results of its operations, cash flows and equity for the three months ended March 31, 2018 and 2017 . Certain previously reported amounts have been reclassified to conform to the current year presentation. The balance sheet at December 31, 2017 has been derived from the audited financial statements at that date but does not include all of the information and footnotes required by GAAP for complete financial statements. Due to the seasonal nature of EQM's utility customer contracts, the interim statements for the three months ended March 31, 2018 are not necessarily indicative of the results that may be expected for the year ending December 31, 2018 . For further information, refer to the consolidated financial statements and related footnotes and "Management's Discussion and Analysis of Financial Condition and Results of Operations" included in EQGP's Annual Report on Form 10-K for the year ended December 31, 2017 . Recently Issued Accounting Standards In May 2014, the FASB issued ASU No. 2014-09, Revenue from Contracts with Customers . The standard requires an entity to recognize revenue in a manner that depicts the transfer of goods or services to customers at an amount that reflects the consideration the entity expects in exchange for those goods or services. EQGP adopted this standard on January 1, 2018 using the modified retrospective method of adoption. Adoption of the ASU did not require an adjustment to the opening balance of equity. EQGP does not expect the standard to have a significant effect on its results of operations, liquidity or financial position. EQGP implemented processes and controls to ensure new contracts are reviewed for the appropriate accounting treatment and to generate the disclosures required under the new standard in the first quarter of 2018. For the disclosures required by this ASU, see Note B. In January 2016, the FASB issued ASU No. 2016-01, Financial Instruments-Overall: Recognition and Measurement of Financial Assets and Financial Liabilities . The standard primarily affects accounting for equity investments, financial liabilities under the fair value option and the presentation and disclosure requirements for financial instruments, and eliminates the cost method of accounting for equity investments. EQGP adopted this standard in the first quarter of 2018 with no significant effect on its financial statements or related disclosures. In February 2016, the FASB issued ASU No. 2016-02, Leases . The standard requires an entity to record assets and obligations for contracts currently recognized as operating leases. Lessees and lessors must apply a modified retrospective transition approach. The ASU will be effective for annual reporting periods beginning after December 15, 2018, including interim periods within that reporting period, with early adoption permitted. EQGP has completed a high-level identification of agreements covered by this standard and will continue to evaluate the effect this standard will have on its financial statements, internal controls and related disclosures. In June 2016, the FASB issued ASU No. 2016-13, Financial Instruments-Credit Losses: Measurement of Credit Losses on Financial Instruments. This ASU amends guidance on reporting credit losses for assets held at amortized cost basis and available for sale debt securities. For assets held at amortized cost basis, this ASU eliminates the probable initial recognition threshold in current GAAP and, instead, requires an entity to reflect its current estimate of all expected credit losses. The amendments affect loans, debt securities, trade receivables, net investments in leases, off balance sheet credit exposures, reinsurance receivables, and any other financial assets not excluded from the scope that have the contractual right to receive cash. The ASU will be effective for annual reporting periods beginning after December 15, 2019, including interim periods within that reporting period. EQGP is currently evaluating the effect this standard will have on its financial statements and related disclosures.

Revenue from Contracts with Cus

Revenue from Contracts with Customers	3 Months Ended
	Mar. 31, 2018
Revenue from Contract with Customer [Abstract]
Revenue from Contract with Customer [Text Block]	Revenue from Contracts with Customers As discussed in Note A, EQGP adopted ASU No. 2014-09, Revenue from Contracts with Customers , on January 1, 2018 using the modified retrospective method of adoption. EQGP applied the ASU to all open contracts as of the date of initial application. Adoption of the ASU did not require an adjustment to the opening balance of equity and did not materially change EQGP's amount and timing of revenues. EQM provides gathering, transmission and storage services in two manners: firm service and interruptible service. Firm service contracts are typically long term and include firm reservation fees, which are fixed, monthly charges for the guaranteed reservation of pipeline or storage capacity. Interruptible service contracts include volumetric based fees, which are charges for the volume of gas actually gathered, transported or stored and do not guarantee access to the pipeline or storage facility. These contracts can be short or long term. Volumetric based fees can also be charged under firm contracts for actual volumes transported, gathered or stored in excess of the firm contracted volume. Firm and interruptible contracts are billed at the end of each calendar month, with payment typically due within 21 days. Under a firm contract, EQM has a stand-ready obligation to provide the service over the life of the contract. The performance obligation for firm reservation fee revenue is satisfied over time as the pipeline capacity is made available to the customer. As such, EQM recognizes firm reservation fee revenue evenly over the contract period, using a time-elapsed output method to measure progress. The performance obligation for volumetric based fee revenues is generally satisfied upon EQM's monthly billing to the customer for actual volumes gathered, transported or stored during the month. The amount billed corresponds directly to the value of EQM's performance to date as the customer obtains value as each volume is gathered, transported or stored. For the three months ended March 31, 2018 and 2017 , all revenues recognized on EQM's statements of consolidated operations are from contracts with customers. As of March 31, 2018 and December 31, 2017 , all receivables recorded on EQM's consolidated balance sheets represent performance obligations that have been satisfied and for which an unconditional right to consideration exists. The table below provides disaggregated revenue information by EQM business segment for the three months ended March 31, 2018 . Three Months Ended March 31, 2018 Gathering Transmission Total (Thousands) Firm reservation fee revenues $ 109,933 $ 97,775 $ 207,708 Volumetric based fee revenues: Usage fees under firm contracts (1) 12,108 3,822 15,930 Usage fees under interruptible contracts 3,867 5,337 9,204 Total volumetric based fee revenues 15,975 9,159 25,134 Total operating revenues $ 125,908 $ 106,934 $ 232,842 (1) Includes fees on volumes gathered and transported in excess of firm contracted capacity as well as commodity charges and fees on all volumes transported under firm contracts. Based on total projected contractual revenues and including contracts associated with expected future capacity from expansion projects that are not yet fully constructed but for which EQM has entered into firm contracts, EQM's firm gathering contracts and firm transmission and storage contracts had weighted average remaining terms of approximately 8 and 15 years, respectively, as of December 31, 2017 . The following table summarizes the transaction price allocated to EQM's remaining performance obligations under all contracts with firm reservation fees as of March 31, 2018 . 2018 2019 2020 2021 2022 Thereafter Total (Thousands) Gathering firm reservation fees $ 333,316 $ 443,741 $ 443,741 $ 443,741 $ 443,741 $ 1,485,787 $ 3,594,067 Transmission firm reservation fees 294,044 384,018 381,788 377,619 372,544 3,039,812 4,849,825 Total firm reservation fees $ 627,360 $ 827,759 $ 825,529 $ 821,360 $ 816,285 $ 4,525,599 $ 8,443,892

Equity and Net Income per Limit

Equity and Net Income per Limited Partner Unit	3 Months Ended
	Mar. 31, 2018
Equity [Abstract]
Equity and Net Income per Limited Partner Unit	Equity and Net Income per Limited Partner Unit As of March 31, 2018 , EQT indirectly held 239,715,000 EQGP common units, representing a 90.1% limited partner interest, and the entire non-economic general partner interest in EQGP. EQM Equity. The following table summarizes EQM's limited partner common units and general partner units issued from January 1, 2018 through March 31, 2018 . There were no issuances in 2017 . EQM Limited Partner Common Units EQM General Partner Units Total Balance at January 1, 2018 80,581,758 1,443,015 82,024,773 Common units issued (1) 9,608 — 9,608 Balance at March 31, 2018 80,591,366 1,443,015 82,034,381 (1) Units issued upon a resignation from the EQM General Partner's Board of Directors in February 2018. As of March 31, 2018 , EQGP and its subsidiaries owned 21,811,643 EQM common units, representing a 26.6% limited partner interest, 1,443,015 EQM general partner units, representing a 1.8% general partner interest, and all of the incentive distribution rights (IDRs) in EQM. Net Income per Limited Partner Unit. The weighted average phantom unit awards included in the calculation of basic weighted average limited partner units outstanding was 28,275 and 18,219 for the three months ended March 31, 2018 and 2017 , respectively. Distributions The following table summarizes the quarterly cash distributions declared by EQM and EQGP to their respective unitholders from January 1, 2017 through March 31, 2018 . Quarter Ended EQM Distribution per Common Unit EQM Total Distribution EQM Total Distribution to EQGP EQGP Distribution per Common Unit EQGP Total Distribution (Thousands, except per unit amounts) 2017 March 31 $ 0.89 $ 104,238 $ 51,933 $ 0.191 $ 50,838 June 30 0.935 111,455 56,505 0.21 55,895 September 30 0.98 118,673 61,078 0.228 60,686 December 31 1.025 125,890 65,651 0.244 64,944 2018 March 31 (1) $ 1.065 $ 132,321 $ 69,721 $ 0.258 $ 68,671 (1) On April 24, 2018 , the Board of Directors of the EQM General Partner declared a cash distribution to EQM's unitholders for the first quarter of 2018 of $1.065 per common unit. The cash distribution will be paid on May 15, 2018 to unitholders of record at the close of business on May 4, 2018 . Based on the 80,591,366 EQM common units outstanding on April 26, 2018 , cash distributions to EQGP will be approximately $23.2 million related to its limited partner interest, $2.3 million related to its general partner interest and $44.2 million related to its IDRs in EQM. The distribution amounts to EQGP related to its general partner interest and IDRs in EQM are subject to change if EQM issues additional common units on or prior to the record date for the first quarter 2018 distribution. On April 24, 2018 , the Board of Directors of the EQGP General Partner declared a cash distribution to EQGP's unitholders for the first quarter of 2018 of $0.258 per common unit. The cash distribution will be paid on May 24, 2018 to unitholders of record at the close of business on May 4, 2018 .

Financial Information by Busine

Financial Information by Business Segment	3 Months Ended
	Mar. 31, 2018
Segment Reporting [Abstract]
Financial Information by Business Segment	Financial Information by Business Segment Three Months Ended 2018 2017 (Thousands) Revenues from external customers (including affiliates): Gathering $ 125,908 $ 102,329 Transmission 106,934 97,743 Total operating revenues $ 232,842 $ 200,072 Operating income: Gathering $ 98,891 $ 73,704 Transmission 79,451 71,604 Headquarters (1,227 ) (1,212 ) Total operating income $ 177,115 $ 144,096 Reconciliation of operating income to net income: Equity income $ 8,811 $ 4,277 Other income 898 1,537 Net interest expense 10,817 7,922 Net income $ 176,007 $ 141,988 March 31, December 31, (Thousands) Segment assets: Gathering $ 1,519,496 $ 1,463,247 Transmission 1,494,439 1,487,501 Total operating segments 3,013,935 2,950,748 Headquarters, including cash 680,049 598,877 Total assets $ 3,693,984 $ 3,549,625 Three Months Ended 2018 2017 (Thousands) Depreciation and amortization: Gathering $ 10,738 $ 8,860 Transmission 12,441 11,687 Total $ 23,179 $ 20,547 Expenditures for segment assets: Gathering $ 68,933 $ 48,838 Transmission 18,929 21,389 Total (1) $ 87,862 $ 70,227 (1) EQM accrues capital expenditures when work has been completed but the associated bills have not yet been paid. These accrued amounts are excluded from capital expenditures in the statements of consolidated cash flows until they are paid in a subsequent period. Accrued capital expenditures were approximately $36.9 million and $33.1 million at March 31, 2018 and December 31, 2017 , respectively. Accrued capital expenditures were approximately $34.0 million and $26.7 million at March 31, 2017 and December 31, 2016 , respectively.

Related Party Transactions

Related Party Transactions	3 Months Ended
	Mar. 31, 2018
Related Party Transactions [Abstract]
Related Party Transactions	Related Party Transactions In the ordinary course of business, EQGP and EQM engage in transactions with EQT and its affiliates including, but not limited to, gas gathering agreements, transportation service and precedent agreements and storage agreements. EQGP and EQM each have an omnibus agreement with EQT. Pursuant to the omnibus agreements, EQT performs centralized corporate, general and administrative services for EQGP and EQM and provides a license for the use of the name "EQT" and related marks in connection with EQGP's and EQM's businesses. In exchange, EQGP and EQM reimburse EQT for the expenses incurred by EQT in providing these services. The omnibus agreements also provide for certain indemnification obligations between EQM and EQT. Pursuant to a secondment agreement, employees of EQT and its affiliates may be seconded to EQM to provide operating and other services with respect to EQM's business under the direction, supervision and control of EQM. EQM reimburses EQT and its affiliates for the services provided by the seconded employees. The expenses for which EQGP and EQM reimburse EQT and its affiliates may not necessarily reflect the actual expenses that EQGP and EQM would incur on a stand-alone basis. EQGP and EQM are unable to estimate what those expenses would be on a stand-alone basis.

Investment in Unconsolidated En

Investment in Unconsolidated Entity	3 Months Ended
	Mar. 31, 2018
Equity Method Investments and Joint Ventures [Abstract]
Investment in Unconsolidated Entity	Investment in Unconsolidated Entity The MVP Joint Venture is constructing the Mountain Valley Pipeline (MVP), an estimated 300 -mile natural gas interstate pipeline spanning from northern West Virginia to southern Virginia. EQM is the operator of the MVP and owned a 45.5% interest in the MVP Joint Venture as of March 31, 2018 . The MVP Joint Venture is a variable interest entity because it has insufficient equity to finance its activities during the construction stage of the project. EQM is not the primary beneficiary because it does not have the power to direct the activities of the MVP Joint Venture that most significantly impact its economic performance. Certain business decisions require the approval of owners holding more than a 66 2/3% interest in the MVP Joint Venture and no one member owns more than a 66 2/3% interest. The MVP Joint Venture is an equity method investment for accounting purposes as EQM has the ability to exercise significant influence over operating and financial policies of the MVP Joint Venture. In February 2018 , the MVP Joint Venture issued a capital call notice to MVP Holdco, LLC (MVP Holdco), a direct wholly owned subsidiary of EQM, for $65.8 million , which is expected to be paid in May 2018 . The capital contribution payable has been reflected on the consolidated balance sheet as of March 31, 2018 with a corresponding increase to EQM's investment in the MVP Joint Venture. Equity income, which is primarily related to EQM's portion of the MVP Joint Venture's AFUDC on construction of the MVP, is reported in equity income in the statements of consolidated operations. As of March 31, 2018 , EQM had issued a $91 million performance guarantee in favor of the MVP Joint Venture to provide performance assurances for MVP Holdco's obligations to fund its proportionate share of the construction budget for the MVP. As of March 31, 2018 , EQM's maximum financial statement exposure related to the MVP Joint Venture was approximately $637 million , which consists of the investment in unconsolidated entity balance on the consolidated balance sheet as of March 31, 2018 and amounts that could have become due under EQM's performance guarantee as of that date. The following tables summarize the unaudited condensed financial statements for the MVP Joint Venture. Condensed Consolidated Balance Sheets March 31, December 31, (Thousands) Current assets $ 349,620 $ 330,271 Noncurrent assets 906,626 747,728 Total assets $ 1,256,246 $ 1,077,999 Current liabilities $ 55,305 $ 65,811 Equity 1,200,941 1,012,188 Total liabilities and equity $ 1,256,246 $ 1,077,999 Condensed Statements of Consolidated Operations Three Months Ended 2018 2017 (Thousands) Net interest income $ 6,183 $ 2,247 AFUDC - equity 13,182 7,153 Net income $ 19,365 $ 9,400

Credit Facility Borrowings

Credit Facility Borrowings	3 Months Ended
	Mar. 31, 2018
Debt Disclosure [Abstract]
Credit Facility Borrowings	Credit Facility Borrowings EQGP Working Capital Facility. EQGP has a Working Capital Loan Agreement with EQT (the Working Capital Facility) that provides for interest bearing loans of up to $50 million outstanding at any one time and matures on the earlier of February 18, 2019 or at least 90 days after EQT gives notice of termination. EQGP had $0.1 million and $0.2 million of borrowings outstanding under the Working Capital Facility as of March 31, 2018 and December 31, 2017 , respectively, which were included in due to related party on the consolidated balance sheets. The maximum amounts of EQGP's outstanding borrowings under the Working Capital Facility were $0.2 million and $0.3 million during the three months ended March 31, 2018 and 2017 , respectively, and interest was incurred at weighted average annual interest rates of approximately 3.1% and 2.3% , respectively. EQM $1 Billion Facility. EQM has a $1 billion credit facility that expires in July 2022. The $1 Billion Facility is available to fund working capital requirements and capital expenditures, to purchase assets, to pay distributions and repurchase units and for general partnership purposes (including purchasing assets from EQT and other third parties). EQM's $1 Billion Facility contains various provisions that, if violated, could result in termination of the credit facility, require early payment of amounts outstanding or similar actions. The most significant covenants and events of default relate to maintenance of a permitted leverage ratio, limitations on transactions with affiliates, limitations on restricted payments, insolvency events, nonpayment of scheduled principal or interest payments, acceleration of and certain other defaults under other financial obligations and change of control provisions. Under the $1 Billion Facility, EQM is required to maintain a consolidated leverage ratio of not more than 5.00 to 1.00 (or not more than 5.50 to 1.00 for certain measurement periods following the consummation of certain acquisitions). EQM had no letters of credit outstanding under its credit facility as of March 31, 2018 and December 31, 2017 . During the three months ended March 31, 2018 , the maximum amount of EQM's outstanding borrowings under the credit facility at any time was $420 million and the average daily balance was approximately $301 million . EQM incurred interest at a weighted average annual interest rate of approximately 3.0% for the three months ended March 31, 2018 . There were no borrowings outstanding at any time during the three months ended March 31, 2017 . EQM 364 -Day Facility. EQM has a $500 million , 364 -day, uncommitted revolving loan agreement with EQT that matures on October 24, 2018 and will automatically renew for successive 364 -day periods unless EQT delivers a non-renewal notice at least 60 days prior to the then current maturity date. Interest accrues on outstanding borrowings at an interest rate equal to the rate then applicable to similar loans under the $1 Billion Facility, or a successor revolving credit facility, less the sum of (i) the then applicable commitment fee under the $1 Billion Facility and (ii) 10 basis points. EQM had no borrowings outstanding on the 364 -Day Facility as of March 31, 2018 and December 31, 2017 . There were no borrowings outstanding at any time during the three months ended March 31, 2018 . During the three months ended March 31, 2017 , the maximum amount of EQM's outstanding borrowings under the credit facility at any time was $50 million and the average daily balance was approximately $26 million . EQM incurred interest at a weighted average annual interest rate of approximately 2.0% for the three months ended March 31, 2017 . As of March 31, 2018 , EQGP and EQM were in compliance with all debt provisions and covenants.

Fair Value Measurements

Fair Value Measurements	3 Months Ended
	Mar. 31, 2018
Fair Value Disclosures [Abstract]
Fair Value Measurements	Fair Value Measurements The carrying values of cash and cash equivalents, accounts receivable, amounts due to/from related parties and accounts payable approximate fair value due to the short maturity of the instruments; these are considered Level 1 fair value measurements. The carrying value of the credit facility borrowings approximates fair value as the interest rates are based on prevailing market rates; this is considered a Level 1 fair value measurement. As EQM's senior notes are not actively traded, their fair values are considered Level 2 fair value measurements and are estimated using a standard industry income approach model that applies a discount rate based on market rates for debt with similar remaining time to maturity and credit risk. As of March 31, 2018 and December 31, 2017 , the estimated fair value of EQM's senior notes was approximately $974 million and $1,006 million , respectively, and the carrying value of EQM's senior notes was approximately $988 million and $987 million , respectively. The fair value of the Preferred Interest is a Level 3 fair value measurement and is estimated using an income approach model that applies a market-based discount rate. As of March 31, 2018 and December 31, 2017 , the estimated fair value of the Preferred Interest was approximately $128 million and $133 million , respectively, and the carrying value of the Preferred Interest was approximately $118 million and $119 million , respectively.

Distributions

Distributions	3 Months Ended
	Mar. 31, 2018
Equity [Abstract]
Distributions	Equity and Net Income per Limited Partner Unit As of March 31, 2018 , EQT indirectly held 239,715,000 EQGP common units, representing a 90.1% limited partner interest, and the entire non-economic general partner interest in EQGP. EQM Equity. The following table summarizes EQM's limited partner common units and general partner units issued from January 1, 2018 through March 31, 2018 . There were no issuances in 2017 . EQM Limited Partner Common Units EQM General Partner Units Total Balance at January 1, 2018 80,581,758 1,443,015 82,024,773 Common units issued (1) 9,608 — 9,608 Balance at March 31, 2018 80,591,366 1,443,015 82,034,381 (1) Units issued upon a resignation from the EQM General Partner's Board of Directors in February 2018. As of March 31, 2018 , EQGP and its subsidiaries owned 21,811,643 EQM common units, representing a 26.6% limited partner interest, 1,443,015 EQM general partner units, representing a 1.8% general partner interest, and all of the incentive distribution rights (IDRs) in EQM. Net Income per Limited Partner Unit. The weighted average phantom unit awards included in the calculation of basic weighted average limited partner units outstanding was 28,275 and 18,219 for the three months ended March 31, 2018 and 2017 , respectively. Distributions The following table summarizes the quarterly cash distributions declared by EQM and EQGP to their respective unitholders from January 1, 2017 through March 31, 2018 . Quarter Ended EQM Distribution per Common Unit EQM Total Distribution EQM Total Distribution to EQGP EQGP Distribution per Common Unit EQGP Total Distribution (Thousands, except per unit amounts) 2017 March 31 $ 0.89 $ 104,238 $ 51,933 $ 0.191 $ 50,838 June 30 0.935 111,455 56,505 0.21 55,895 September 30 0.98 118,673 61,078 0.228 60,686 December 31 1.025 125,890 65,651 0.244 64,944 2018 March 31 (1) $ 1.065 $ 132,321 $ 69,721 $ 0.258 $ 68,671 (1) On April 24, 2018 , the Board of Directors of the EQM General Partner declared a cash distribution to EQM's unitholders for the first quarter of 2018 of $1.065 per common unit. The cash distribution will be paid on May 15, 2018 to unitholders of record at the close of business on May 4, 2018 . Based on the 80,591,366 EQM common units outstanding on April 26, 2018 , cash distributions to EQGP will be approximately $23.2 million related to its limited partner interest, $2.3 million related to its general partner interest and $44.2 million related to its IDRs in EQM. The distribution amounts to EQGP related to its general partner interest and IDRs in EQM are subject to change if EQM issues additional common units on or prior to the record date for the first quarter 2018 distribution. On April 24, 2018 , the Board of Directors of the EQGP General Partner declared a cash distribution to EQGP's unitholders for the first quarter of 2018 of $0.258 per common unit. The cash distribution will be paid on May 24, 2018 to unitholders of record at the close of business on May 4, 2018 .

Consolidated Variable Interest

Consolidated Variable Interest Entity	3 Months Ended
	Mar. 31, 2018
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Consolidated Variable Interest Entity	Consolidated Variable Interest Entity EQM is a variable interest entity. Through EQGP's ownership and control of the EQM General Partner, EQGP has the power to direct the activities that most significantly impact EQM's economic performance. In addition, through EQGP's general partner interest, IDRs and limited partner interest in EQM, EQGP has the obligation to absorb EQM's losses and the right to receive benefits from EQM in accordance with its general partner and limited partner ownership percentages and IDRs. Therefore, EQGP consolidates EQM. For additional information, see Note 15 to the consolidated financial statements in EQGP's Annual Report on Form 10-K for the year ended December 31, 2017 . EQGP's only cash-generating assets consist of its partnership interests in EQM. As a result, EQGP's results of operations do not differ materially from the results of operations of EQM. For a discussion on the risks associated with EQM's operations, see EQGP's Annual Report on Form 10-K for the year ended December 31, 2017 and this Quarterly Report on Form 10-Q. For further discussion on the effect that EQGP's involvement in EQM has on EQGP's financial position, results of operations and cash flows, see EQGP's Annual Report on Form 10-K for the year ended December 31, 2017 . For discussion on related party transactions, see Note 5 to the consolidated financial statements in EQGP's Annual Report on Form 10-K for the year ended December 31, 2017 and Note E to these financial statements. The following table presents amounts included in EQGP's consolidated balance sheets that were for the use or obligation of EQM. Classification March 31, December 31, (Thousands) Assets: Cash and cash equivalents $ 8,988 $ 2,557 Accounts receivable 29,481 28,804 Accounts receivable – affiliate 91,655 103,304 Other current assets 17,217 12,662 Net property, plant and equipment 2,864,040 2,804,059 Investment in unconsolidated entity 546,428 460,546 Other assets 135,466 136,895 Liabilities: Accounts payable $ 48,189 $ 47,040 Due to related party 23,769 31,673 Capital contribution payable to MVP Joint Venture 65,786 105,734 Accrued interest 11,376 10,926 Accrued liabilities 15,103 16,871 EQM credit facility borrowings 317,000 180,000 EQM senior notes 987,756 987,352 Regulatory and other long-term liabilities 20,880 20,273

Subsequent Events

Subsequent Events	3 Months Ended
	Mar. 31, 2018
Subsequent Events [Abstract]
Subsequent Events	Subsequent Events EQM-RMP Merger On April 25, 2018, EQM entered into an Agreement and Plan of Merger (the Merger Agreement) with Rice Midstream Partners LP (RMP), Rice Midstream Management LLC, the general partner of RMP (the RMP General Partner), the EQM General Partner, EQM Acquisition Sub, LLC, a wholly owned subsidiary of EQM (Merger Sub), EQM GP Acquisition Sub, LLC, a wholly owned subsidiary of EQM (GP Merger Sub), and, solely for certain limited purposes set forth therein, EQT. Pursuant to the Merger Agreement, Merger Sub and GP Merger Sub will merge with and into RMP and the RMP General Partner, respectively, with RMP and the RMP General Partner surviving as wholly owned subsidiaries of EQM (the Mergers). Pursuant to the Merger Agreement, each RMP common unit issued and outstanding immediately prior to the effective time of the Mergers will be converted into the right to receive 0.3319 EQM common units. The completion of the Mergers is subject to the satisfaction or waiver of certain customary closing conditions, including, but not limited to: (i) approval of the Merger Agreement by a majority of RMP's unitholders, (ii) expiration or termination of any applicable waiting period under the Hart-Scott-Rodino Antitrust Improvements Act of 1976, as amended, (iii) the completion of the Drop-Down Transactions (as defined below), and (iv) the completion of the IDR Transaction (as defined below). The Merger Agreement provides that upon termination of the Merger Agreement under certain circumstances RMP may be required to pay EQM a termination fee equal to $63.4 million less any previous reimbursements by RMP. The Merger Agreement also provides that upon termination of the Merger Agreement under certain circumstances EQM may be required to reimburse RMP's expenses up to $5 million and RMP may be required to reimburse EQM's expenses up to $5 million . As a result of the Mergers, RMP's common units will no longer be publicly traded. EQM expects to complete the Mergers during the third quarter of 2018. RMP IDR Purchase and Sale Agreement On April 25, 2018, EQT, Rice Midstream GP Holdings LP, a wholly owned subsidiary of EQT that owns the RMP IDRs, and EQGP entered into an Incentive Distribution Rights Purchase and Sale Agreement pursuant to which EQGP will acquire all of the issued and outstanding RMP IDRs in exchange for 36,293,766 EQGP common units (the IDR Transaction). If the unit consideration is issued and the Mergers are not consummated on or prior to December 31, 2018 or the Merger Agreement is earlier terminated, 8,539,710 of the EQGP common units issued to EQT will be canceled and EQT will pay to EQGP an amount in cash equal to the aggregate amount of any distributions paid by EQGP to EQT related to the forfeited EQGP common units. The completion of the IDR Transaction is subject to certain customary closing conditions. Pursuant to the terms of the Merger Agreement, the RMP IDRs will be canceled effective at the time of the Mergers. EQGP expects to complete the IDR Transaction during the second quarter of 2018. Drop-Down Transactions and Gulfport Transaction On April 25, 2018, EQT, Rice Midstream Holdings LLC, a wholly owned subsidiary of EQT, EQM and EQM Gathering Holdings, LLC (EQM Gathering), a wholly owned subsidiary of EQM, entered into a Contribution and Sale Agreement (the Drop-Down Agreement) pursuant to which EQM Gathering will acquire, in one or more transactions, from EQT all of EQT's interests in Rice Olympus Midstream LLC, Rice West Virginia Midstream LLC and Strike Force Midstream Holdings LLC (Strike Force Holdings) in exchange for an aggregate of 5,889,282 EQM common units and aggregate cash consideration of $1.15 billion , subject to customary post-closing purchase price adjustments (collectively, the Drop-Down Transactions). Strike Force Holdings owns a 75% limited liability company interest in Strike Force Midstream LLC (Strike Force Midstream). The completion of the Drop-Down Transactions is subject to certain customary closing conditions. Also on April 25, 2018, EQM, EQM Gathering, Gulfport Energy Corporation (Gulfport) and an affiliate of Gulfport entered into a Purchase and Sale Agreement pursuant to which EQM will acquire the remaining 25% limited liability company interest in Strike Force Midstream not owned by EQT for $175 million (the Gulfport Transaction). The completion of the Gulfport Transaction is subject to certain customary closing conditions. EQM expects to complete the Drop-Down Transactions and the Gulfport Transaction during the second quarter 2018. EQM Term Loan On April 25, 2018, EQM entered into a $2.5 billion unsecured multi-draw 364 -day term loan facility with a syndicate of lenders (the EQM Term Loan Facility). The EQM Term Loan Facility is available to fund the cash consideration for the Drop-Down Transactions, to repay borrowings under EQM's $1 billion revolving credit facility and, following the Mergers, under RMP's $850 million revolving credit facility, to fund ongoing working capital requirements and for other general partnership purposes. Unused commitments under the EQM Term Loan Facility will terminate automatically on December 31, 2018. The EQM Term Loan Facility matures on April 24, 2019 and includes mandatory prepayment and commitment reduction requirements related to the receipt by EQM of net cash proceeds from certain debt transactions, equity issuances, asset sales and joint venture distributions.

Financial Statements (Policies)

Financial Statements (Policies)	3 Months Ended
	Mar. 31, 2018
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Basis of Presentation	Basis of Presentation The accompanying unaudited consolidated financial statements have been prepared in accordance with GAAP for interim financial information and with the requirements of Form 10-Q and Article 10 of Regulation S-X. Accordingly, they do not include all of the information and footnotes required by GAAP for complete financial statements. In the opinion of management, these unaudited consolidated financial statements include all adjustments (consisting of only normal recurring adjustments, unless otherwise disclosed in this Form 10-Q) necessary for a fair presentation of the financial position of EQGP as of March 31, 2018 and December 31, 2017 , and the results of its operations, cash flows and equity for the three months ended March 31, 2018 and 2017 . Certain previously reported amounts have been reclassified to conform to the current year presentation. The balance sheet at December 31, 2017 has been derived from the audited financial statements at that date but does not include all of the information and footnotes required by GAAP for complete financial statements. Due to the seasonal nature of EQM's utility customer contracts, the interim statements for the three months ended March 31, 2018 are not necessarily indicative of the results that may be expected for the year ending December 31, 2018 . For further information, refer to the consolidated financial statements and related footnotes and "Management's Discussion and Analysis of Financial Condition and Results of Operations" included in EQGP's Annual Report on Form 10-K for the year ended December 31, 2017 .
Recently Issued Accounting Standards	Recently Issued Accounting Standards In May 2014, the FASB issued ASU No. 2014-09, Revenue from Contracts with Customers . The standard requires an entity to recognize revenue in a manner that depicts the transfer of goods or services to customers at an amount that reflects the consideration the entity expects in exchange for those goods or services. EQGP adopted this standard on January 1, 2018 using the modified retrospective method of adoption. Adoption of the ASU did not require an adjustment to the opening balance of equity. EQGP does not expect the standard to have a significant effect on its results of operations, liquidity or financial position. EQGP implemented processes and controls to ensure new contracts are reviewed for the appropriate accounting treatment and to generate the disclosures required under the new standard in the first quarter of 2018. For the disclosures required by this ASU, see Note B. In January 2016, the FASB issued ASU No. 2016-01, Financial Instruments-Overall: Recognition and Measurement of Financial Assets and Financial Liabilities . The standard primarily affects accounting for equity investments, financial liabilities under the fair value option and the presentation and disclosure requirements for financial instruments, and eliminates the cost method of accounting for equity investments. EQGP adopted this standard in the first quarter of 2018 with no significant effect on its financial statements or related disclosures. In February 2016, the FASB issued ASU No. 2016-02, Leases . The standard requires an entity to record assets and obligations for contracts currently recognized as operating leases. Lessees and lessors must apply a modified retrospective transition approach. The ASU will be effective for annual reporting periods beginning after December 15, 2018, including interim periods within that reporting period, with early adoption permitted. EQGP has completed a high-level identification of agreements covered by this standard and will continue to evaluate the effect this standard will have on its financial statements, internal controls and related disclosures. In June 2016, the FASB issued ASU No. 2016-13, Financial Instruments-Credit Losses: Measurement of Credit Losses on Financial Instruments. This ASU amends guidance on reporting credit losses for assets held at amortized cost basis and available for sale debt securities. For assets held at amortized cost basis, this ASU eliminates the probable initial recognition threshold in current GAAP and, instead, requires an entity to reflect its current estimate of all expected credit losses. The amendments affect loans, debt securities, trade receivables, net investments in leases, off balance sheet credit exposures, reinsurance receivables, and any other financial assets not excluded from the scope that have the contractual right to receive cash. The ASU will be effective for annual reporting periods beginning after December 15, 2019, including interim periods within that reporting period. EQGP is currently evaluating the effect this standard will have on its financial statements and related disclosures.

Revenue from Contracts with C20

Revenue from Contracts with Customers (Tables)	3 Months Ended
	Mar. 31, 2018
Revenue from Contract with Customer [Abstract]
Schedule of Disaggregated Revenue Information, by Business Segment	The table below provides disaggregated revenue information by EQM business segment for the three months ended March 31, 2018 . Three Months Ended March 31, 2018 Gathering Transmission Total (Thousands) Firm reservation fee revenues $ 109,933 $ 97,775 $ 207,708 Volumetric based fee revenues: Usage fees under firm contracts (1) 12,108 3,822 15,930 Usage fees under interruptible contracts 3,867 5,337 9,204 Total volumetric based fee revenues 15,975 9,159 25,134 Total operating revenues $ 125,908 $ 106,934 $ 232,842 (1) Includes fees on volumes gathered and transported in excess of firm contracted capacity as well as commodity charges and fees on all volumes transported under firm contracts.
Summary of Remaining Performance Obligations	The following table summarizes the transaction price allocated to EQM's remaining performance obligations under all contracts with firm reservation fees as of March 31, 2018 . 2018 2019 2020 2021 2022 Thereafter Total (Thousands) Gathering firm reservation fees $ 333,316 $ 443,741 $ 443,741 $ 443,741 $ 443,741 $ 1,485,787 $ 3,594,067 Transmission firm reservation fees 294,044 384,018 381,788 377,619 372,544 3,039,812 4,849,825 Total firm reservation fees $ 627,360 $ 827,759 $ 825,529 $ 821,360 $ 816,285 $ 4,525,599 $ 8,443,892

Equity and Net Income per Lim21

Equity and Net Income per Limited Partner Unit (Tables)	3 Months Ended
	Mar. 31, 2018
Equity [Abstract]
Summary of Units Issued	The following table summarizes EQM's limited partner common units and general partner units issued from January 1, 2018 through March 31, 2018 . There were no issuances in 2017 . EQM Limited Partner Common Units EQM General Partner Units Total Balance at January 1, 2018 80,581,758 1,443,015 82,024,773 Common units issued (1) 9,608 — 9,608 Balance at March 31, 2018 80,591,366 1,443,015 82,034,381 (1) Units issued upon a resignation from the EQM General Partner's Board of Directors in February 2018.

Financial Information by Busi22

Financial Information by Business Segment (Tables)	3 Months Ended
	Mar. 31, 2018
Segment Reporting [Abstract]
Schedule of Revenue from External Customers and Operating Income and Reconciliation to Net Income	Three Months Ended 2018 2017 (Thousands) Revenues from external customers (including affiliates): Gathering $ 125,908 $ 102,329 Transmission 106,934 97,743 Total operating revenues $ 232,842 $ 200,072 Operating income: Gathering $ 98,891 $ 73,704 Transmission 79,451 71,604 Headquarters (1,227 ) (1,212 ) Total operating income $ 177,115 $ 144,096 Reconciliation of operating income to net income: Equity income $ 8,811 $ 4,277 Other income 898 1,537 Net interest expense 10,817 7,922 Net income $ 176,007 $ 141,988
Schedule of Segment Assets	March 31, December 31, (Thousands) Segment assets: Gathering $ 1,519,496 $ 1,463,247 Transmission 1,494,439 1,487,501 Total operating segments 3,013,935 2,950,748 Headquarters, including cash 680,049 598,877 Total assets $ 3,693,984 $ 3,549,625
Schedule of Depreciation and Amortization and Expenditures for Segment Assets	Three Months Ended 2018 2017 (Thousands) Depreciation and amortization: Gathering $ 10,738 $ 8,860 Transmission 12,441 11,687 Total $ 23,179 $ 20,547 Expenditures for segment assets: Gathering $ 68,933 $ 48,838 Transmission 18,929 21,389 Total (1) $ 87,862 $ 70,227 (1) EQM accrues capital expenditures when work has been completed but the associated bills have not yet been paid. These accrued amounts are excluded from capital expenditures in the statements of consolidated cash flows until they are paid in a subsequent period. Accrued capital expenditures were approximately $36.9 million and $33.1 million at March 31, 2018 and December 31, 2017 , respectively. Accrued capital expenditures were approximately $34.0 million and $26.7 million at March 31, 2017 and December 31, 2016 , respectively.

Investment in Unconsolidated 23

Investment in Unconsolidated Entity (Tables)	3 Months Ended
	Mar. 31, 2018
Equity Method Investments and Joint Ventures [Abstract]
Schedule of Unaudited Condensed Financial Statements for the Investment in Unconsolidated Equity	The following tables summarize the unaudited condensed financial statements for the MVP Joint Venture. Condensed Consolidated Balance Sheets March 31, December 31, (Thousands) Current assets $ 349,620 $ 330,271 Noncurrent assets 906,626 747,728 Total assets $ 1,256,246 $ 1,077,999 Current liabilities $ 55,305 $ 65,811 Equity 1,200,941 1,012,188 Total liabilities and equity $ 1,256,246 $ 1,077,999 Condensed Statements of Consolidated Operations Three Months Ended 2018 2017 (Thousands) Net interest income $ 6,183 $ 2,247 AFUDC - equity 13,182 7,153 Net income $ 19,365 $ 9,400

Distributions (Tables)

Distributions (Tables)	3 Months Ended
	Mar. 31, 2018
Equity [Abstract]
Summary of Cash Distributions to Unitholders	The following table summarizes the quarterly cash distributions declared by EQM and EQGP to their respective unitholders from January 1, 2017 through March 31, 2018 . Quarter Ended EQM Distribution per Common Unit EQM Total Distribution EQM Total Distribution to EQGP EQGP Distribution per Common Unit EQGP Total Distribution (Thousands, except per unit amounts) 2017 March 31 $ 0.89 $ 104,238 $ 51,933 $ 0.191 $ 50,838 June 30 0.935 111,455 56,505 0.21 55,895 September 30 0.98 118,673 61,078 0.228 60,686 December 31 1.025 125,890 65,651 0.244 64,944 2018 March 31 (1) $ 1.065 $ 132,321 $ 69,721 $ 0.258 $ 68,671 (1) On April 24, 2018 , the Board of Directors of the EQM General Partner declared a cash distribution to EQM's unitholders for the first quarter of 2018 of $1.065 per common unit. The cash distribution will be paid on May 15, 2018 to unitholders of record at the close of business on May 4, 2018 . Based on the 80,591,366 EQM common units outstanding on April 26, 2018 , cash distributions to EQGP will be approximately $23.2 million related to its limited partner interest, $2.3 million related to its general partner interest and $44.2 million related to its IDRs in EQM. The distribution amounts to EQGP related to its general partner interest and IDRs in EQM are subject to change if EQM issues additional common units on or prior to the record date for the first quarter 2018 distribution.

Consolidated Variable Interes25

Consolidated Variable Interest Entity (Tables)	3 Months Ended
	Mar. 31, 2018
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Schedule of Consolidated Variable Interest Entity	The following table presents amounts included in EQGP's consolidated balance sheets that were for the use or obligation of EQM. Classification March 31, December 31, (Thousands) Assets: Cash and cash equivalents $ 8,988 $ 2,557 Accounts receivable 29,481 28,804 Accounts receivable – affiliate 91,655 103,304 Other current assets 17,217 12,662 Net property, plant and equipment 2,864,040 2,804,059 Investment in unconsolidated entity 546,428 460,546 Other assets 135,466 136,895 Liabilities: Accounts payable $ 48,189 $ 47,040 Due to related party 23,769 31,673 Capital contribution payable to MVP Joint Venture 65,786 105,734 Accrued interest 11,376 10,926 Accrued liabilities 15,103 16,871 EQM credit facility borrowings 317,000 180,000 EQM senior notes 987,756 987,352 Regulatory and other long-term liabilities 20,880 20,273

Revenue from Contracts with C26

Revenue from Contracts with Customers - Narrative (Details) - EQM	3 Months Ended	12 Months Ended
	Mar. 31, 2018	Dec. 31, 2017
Disaggregation of Revenue [Line Items]
Contract billing cycle	21 days
Gathering
Disaggregation of Revenue [Line Items]
Weighted average remaining term		8 years
Transmission
Disaggregation of Revenue [Line Items]
Weighted average remaining term		15 years

Revenue from Contracts with C27

Revenue from Contracts with Customers - Schedule of Disaggregated Revenue Information, by Business Segment (Details) - EQM $ in Thousands	3 Months Ended
	Mar. 31, 2018USD ($)
Disaggregation of Revenue [Line Items]
Total operating revenues	$ 232,842
Firm reservation fee revenues | Firm reservation fee revenues
Disaggregation of Revenue [Line Items]
Total operating revenues	207,708
Volumetric based fee revenue
Disaggregation of Revenue [Line Items]
Total operating revenues	25,134
Volumetric based fee revenue | Usage fees under firm contracts
Disaggregation of Revenue [Line Items]
Total operating revenues	15,930
Volumetric based fee revenue | Usage fees under interruptible contracts
Disaggregation of Revenue [Line Items]
Total operating revenues	9,204
Gathering
Disaggregation of Revenue [Line Items]
Total operating revenues	125,908
Gathering | Firm reservation fee revenues | Firm reservation fee revenues
Disaggregation of Revenue [Line Items]
Total operating revenues	109,933
Gathering | Volumetric based fee revenue
Disaggregation of Revenue [Line Items]
Total operating revenues	15,975
Gathering | Volumetric based fee revenue | Usage fees under firm contracts
Disaggregation of Revenue [Line Items]
Total operating revenues	12,108
Gathering | Volumetric based fee revenue | Usage fees under interruptible contracts
Disaggregation of Revenue [Line Items]
Total operating revenues	3,867
Transmission
Disaggregation of Revenue [Line Items]
Total operating revenues	106,934
Transmission | Firm reservation fee revenues | Firm reservation fee revenues
Disaggregation of Revenue [Line Items]
Total operating revenues	97,775
Transmission | Volumetric based fee revenue
Disaggregation of Revenue [Line Items]
Total operating revenues	9,159
Transmission | Volumetric based fee revenue | Usage fees under firm contracts
Disaggregation of Revenue [Line Items]
Total operating revenues	3,822
Transmission | Volumetric based fee revenue | Usage fees under interruptible contracts
Disaggregation of Revenue [Line Items]
Total operating revenues	$ 5,337

Revenue from Contracts with C28

Revenue from Contracts with Customers - Summary of Remaining Performance Obligations (Details) - EQM $ in Thousands	3 Months Ended
	Mar. 31, 2018USD ($)
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2018-04-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Total firm reservation fees	$ 627,360
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2018-04-01 | Gathering
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Total firm reservation fees	$ 333,316
Remaining performance obligations, expected timing	9 months
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2018-04-01 | Transmission
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Total firm reservation fees	$ 294,044
Remaining performance obligations, expected timing	9 months
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2019-01-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Total firm reservation fees	$ 827,759
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2019-01-01 | Gathering
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Total firm reservation fees	$ 443,741
Remaining performance obligations, expected timing	1 year
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2019-01-01 | Transmission
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Total firm reservation fees	$ 384,018
Remaining performance obligations, expected timing	1 year
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2020-01-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Total firm reservation fees	$ 825,529
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2020-01-01 | Gathering
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Total firm reservation fees	$ 443,741
Remaining performance obligations, expected timing	1 year
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2020-01-01 | Transmission
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Total firm reservation fees	$ 381,788
Remaining performance obligations, expected timing	1 year
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2021-01-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Total firm reservation fees	$ 821,360
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2021-01-01 | Gathering
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Total firm reservation fees	$ 443,741
Remaining performance obligations, expected timing	1 year
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2021-01-01 | Transmission
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Total firm reservation fees	$ 377,619
Remaining performance obligations, expected timing	1 year
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2022-01-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Total firm reservation fees	$ 816,285
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2022-01-01 | Gathering
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Total firm reservation fees	$ 443,741
Remaining performance obligations, expected timing	1 year
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2022-01-01 | Transmission
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Total firm reservation fees	$ 372,544
Remaining performance obligations, expected timing	1 year
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2023-01-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Total firm reservation fees	$ 4,525,599
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2023-01-01 | Gathering
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Total firm reservation fees	$ 1,485,787
Remaining performance obligations, expected timing
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2023-01-01 | Transmission
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Total firm reservation fees	$ 3,039,812
Remaining performance obligations, expected timing
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: (nil)
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Total firm reservation fees	$ 8,443,892
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: (nil) | Gathering
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Total firm reservation fees	3,594,067
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: (nil) | Transmission
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Total firm reservation fees	$ 4,849,825

Equity and Net Income per Lim29

Equity and Net Income per Limited Partner Unit - Narrative (Details) - shares	3 Months Ended		12 Months Ended
	Mar. 31, 2018	Mar. 31, 2017	Dec. 31, 2017
Class of Stock [Line Items]
Partners' capital common units outstanding (in shares)	266,165,000		266,165,000
Partners' capital account, units issued (in shares)			0
Phantom Units
Class of Stock [Line Items]
Weighted average limited partner units outstanding - basic (in shares)	28,275	18,219
EQM
Class of Stock [Line Items]
Partners' capital account, units issued (in shares)	9,608
Number of general partner units (in shares)	82,034,381		82,024,773
EQM Limited Partner Common Units | EQM
Class of Stock [Line Items]
Partners' capital common units outstanding (in shares)	21,811,643
Limited partner ownership interest (as a percent)	26.60%
EQM Limited Partner Common Units | EQT Corporation and Subsidiaries | EQGP
Class of Stock [Line Items]
Partners' capital common units outstanding (in shares)	239,715,000
Limited partner ownership interest (as a percent)	90.10%
EQM Limited Partner Common Units | EQM
Class of Stock [Line Items]
Partners' capital account, units issued (in shares)	9,608
Number of general partner units (in shares)	80,591,366		80,581,758
EQM General Partner Units | EQM
Class of Stock [Line Items]
Number of general partner units (in shares)	1,443,015
General partner ownership interest (as a percent)	1.80%
EQM General Partner Units | EQM
Class of Stock [Line Items]
Partners' capital account, units issued (in shares)	0
Number of general partner units (in shares)	1,443,015		1,443,015

Equity and Net Income per Lim30

Equity and Net Income per Limited Partner Unit - Summary of Units Issued (Details) - shares	3 Months Ended	12 Months Ended
	Mar. 31, 2018	Dec. 31, 2017
Increase (Decrease) in Partners' Capital [Roll Forward]
Common units issued (in shares)		0
EQM
Increase (Decrease) in Partners' Capital [Roll Forward]
Ending balance (in shares)	82,034,381	82,024,773
Common units issued (in shares)	9,608
Beginning balance (in shares)	82,024,773
EQM Limited Partner Common Units | EQM
Increase (Decrease) in Partners' Capital [Roll Forward]
Ending balance (in shares)	80,591,366	80,581,758
Common units issued (in shares)	9,608
Beginning balance (in shares)	80,581,758
EQM General Partner Units | EQM
Increase (Decrease) in Partners' Capital [Roll Forward]
Ending balance (in shares)	1,443,015	1,443,015
Common units issued (in shares)	0
Beginning balance (in shares)	1,443,015

Financial Information by Busi31

Financial Information by Business Segment (Details) - USD ($) $ in Thousands		3 Months Ended
		Mar. 31, 2018	Mar. 31, 2017	Dec. 31, 2017	Dec. 31, 2016
Revenues from external customers (including affiliates):
Total operating revenues	[1]	$ 232,842	$ 200,072
Operating income:
Total operating income		177,115	144,096
Reconciliation of operating income to net income:
Equity income	[2]	8,811	4,277
Other income		898	1,537
Net interest expense	[3]	10,817	7,922
Net income		176,007	141,988
Segment assets:
Total assets		3,693,984		$ 3,549,625
Depreciation and amortization:
Total		23,179	20,547
Expenditures for segment assets:
Accrued capital expenditures		36,900	34,000	33,100	$ 26,700
Operating segments
Revenues from external customers (including affiliates):
Total operating revenues		232,842	200,072
Segment assets:
Total assets		3,013,935		2,950,748
Depreciation and amortization:
Total		23,179	20,547
Expenditures for segment assets:
Total		87,862	70,227
Operating segments | Gathering
Revenues from external customers (including affiliates):
Total operating revenues		125,908	102,329
Operating income:
Total operating income		98,891	73,704
Segment assets:
Total assets		1,519,496		1,463,247
Depreciation and amortization:
Total		10,738	8,860
Expenditures for segment assets:
Total		68,933	48,838
Operating segments | Transmission
Revenues from external customers (including affiliates):
Total operating revenues		106,934	97,743
Operating income:
Total operating income		79,451	71,604
Segment assets:
Total assets		1,494,439		1,487,501
Depreciation and amortization:
Total		12,441	11,687
Expenditures for segment assets:
Total		18,929	21,389
Headquarters
Operating income:
Total operating income		(1,227)	$ (1,212)
Segment assets:
Total assets		$ 680,049		$ 598,877
[1]	Operating revenues included affiliate revenues from EQT Corporation and subsidiaries (collectively, EQT) of $160.6 million and $143.4 million for the three months ended March 31, 2018 and 2017, respectively. See Note E.
[2]	Represents equity income from Mountain Valley Pipeline, LLC (the MVP Joint Venture). See Note F.
[3]	Net interest expense included interest income on the Preferred Interest in EES of $1.7 million for the three months ended March 31, 2018 and 2017.

Investment in Unconsolidated 32

Investment in Unconsolidated Entity (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2018USD ($)mi	May 31, 2018USD ($)	Dec. 31, 2017USD ($)
Schedule of Equity Method Investments [Line Items]
Expected capital call notice to be paid	$ 65,786		$ 105,734
EQM
Schedule of Equity Method Investments [Line Items]
Issuance of performance guarantee	$ 91,000
EQM | MVP
Schedule of Equity Method Investments [Line Items]
Length of pipeline (in miles) | mi	300
Variable Interest Entity, Not Primary Beneficiary | MVP Joint Venture | Scenario, Forecast
Schedule of Equity Method Investments [Line Items]
Expected capital call notice to be paid		$ 65,800
Variable Interest Entity, Not Primary Beneficiary | MVP Joint Venture | EQM
Schedule of Equity Method Investments [Line Items]
Ownership interest	45.50%
Maximum financial statement exposure	$ 637,000
Beneficial Owner | MVP Joint Venture
Schedule of Equity Method Investments [Line Items]
Percentage of ownership interest	66.67%

Investment in Unconsolidated 33

Investment in Unconsolidated Entity - Schedule of Unaudited Condensed Financial Statements for the Investment in Unconsolidated Equity (Details) - MVP Joint Venture - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017	Dec. 31, 2017
Condensed Consolidated Balance Sheets
Current assets	$ 349,620		$ 330,271
Noncurrent assets	906,626		747,728
Total assets	1,256,246		1,077,999
Current liabilities	55,305		65,811
Equity	1,200,941		1,012,188
Total liabilities and equity	1,256,246		$ 1,077,999
Condensed Statements of Consolidated Operations
Net interest income	6,183	$ 2,247
AFUDC - equity	13,182	7,153
Net income	$ 19,365	$ 9,400

Credit Facility Borrowings - EQ

Credit Facility Borrowings - EQGP Working Capital Facility (Details) - Line of credit - EQT Corporation and Subsidiaries - Working Capital Facility - USD ($)	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017	Dec. 31, 2017
Short-term Debt [Line Items]
Maximum borrowing capacity	$ 50,000,000
Interest bearing loans outstanding maturity period (at least)	90 days
Credit facility borrowings (less than)	$ 100,000		$ 200,000
Maximum amount of short term loans outstanding	$ 200,000	$ 300,000
Weighted average annual interest rate (in percent)	3.10%	2.30%

Credit Facility Borrowings - 35

Credit Facility Borrowings - EQM Credit Facilities (Details)	3 Months Ended
	Mar. 31, 2018USD ($)	Mar. 31, 2017USD ($)	Dec. 31, 2017USD ($)
Line of Credit Facility [Line Items]
EQM credit facility borrowings	$ 317,000,000		$ 180,000,000
Revolving Credit Facility | EQM
Line of Credit Facility [Line Items]
Basis point spread	0.10%
Revolving Credit Facility | EQM | One Billion Credit Facility
Line of Credit Facility [Line Items]
EQM credit facility borrowings	$ 0		0
Revolving Credit Facility | EQM | $500 Million Uncommitted Revolving Loan Agreement
Line of Credit Facility [Line Items]
Maximum borrowing capacity	500,000,000
Maximum amount of short term loans outstanding	$ 0	$ 50,000,000
Average daily balance of short term loans outstanding		$ 26,000,000
Weighted average annual interest rate (as a percent)		2.00%
Line of credit expiration period	364 days
Renewal notice period prior to current maturity date (at least)	60 days
Borrowings outstanding	$ 0		$ 0
Line of credit | EQM | One Billion Credit Facility
Line of Credit Facility [Line Items]
Maximum borrowing capacity	$ 1,000,000,000
Consolidated leverage ratio	5
Consolidated leverage ratio for certain measurement periods	5.50
Maximum amount of short term loans outstanding	$ 420,000,000	$ 0
Average daily balance of short term loans outstanding	$ 301,000,000
Weighted average annual interest rate (as a percent)	3.00%

Fair Value Measurements (Detail

Fair Value Measurements (Details) - EQM - USD ($) $ in Millions	Mar. 31, 2018	Dec. 31, 2017
Carrying Value | EES
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Estimated fair value of preferred interest	$ 118	$ 119
Level 3 | Fair Value | EES
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Estimated fair value of preferred interest	128	133
Fair Value, Measurements, Recurring | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Carrying value of long-term debt	988	987
Fair Value, Measurements, Recurring | Level 2 | Fair Value
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value of long-term debt	$ 974	$ 1,006

Distributions - Summary of Cash

Distributions - Summary of Cash Distributions to Unitholders (Details) - USD ($) $ / shares in Units, $ in Thousands		Apr. 24, 2018	Mar. 31, 2018	Dec. 31, 2017	Sep. 30, 2017	Jun. 30, 2017	Mar. 31, 2017
Distribution Made to Limited Partner [Line Items]
Total quarterly distribution per common unit (in dollars per share)	[1]		$ 0.258				$ 0.191
EQM
Distribution Made to Limited Partner [Line Items]
Total quarterly distribution per common unit (in dollars per share)				$ 1.025	$ 0.980	$ 0.935	$ 0.89
Cash distributions declared				$ 125,890	$ 118,673	$ 111,455	$ 104,238
EQGP
Distribution Made to Limited Partner [Line Items]
Total quarterly distribution per common unit (in dollars per share)				$ 0.244	$ 0.228	$ 0.21	$ 0.191
Total distribution				$ 64,944	$ 60,686	$ 55,895	$ 50,838
EQGP | EQM
Distribution Made to Limited Partner [Line Items]
Cash distributions declared				$ 65,651	$ 61,078	$ 56,505	$ 51,933
Subsequent Event | EQM
Distribution Made to Limited Partner [Line Items]
Total quarterly distribution per common unit (in dollars per share)		$ 1.065
Cash distributions declared		$ 132,321
Subsequent Event | EQGP
Distribution Made to Limited Partner [Line Items]
Total quarterly distribution per common unit (in dollars per share)		$ 0.258
Total distribution		$ 68,671
Subsequent Event | EQGP | EQM
Distribution Made to Limited Partner [Line Items]
Cash distributions declared		$ 69,721
[1]	Represents the cash distributions declared related to the period presented. See Note I.

Distributions - Narrative (Deta

Distributions - Narrative (Details) - USD ($) $ / shares in Units, $ in Thousands		Apr. 26, 2018	Apr. 24, 2018	Mar. 31, 2018	Dec. 31, 2017	Sep. 30, 2017	Jun. 30, 2017	Mar. 31, 2017
Class of Stock [Line Items]
Cash distributions declared per unit (in dollars per share)	[1]			$ 0.258				$ 0.191
EQM
Class of Stock [Line Items]
Cash distributions declared per unit (in dollars per share)					$ 1.025	$ 0.980	$ 0.935	0.89
EQM | Subsequent Event
Class of Stock [Line Items]
Cash distributions declared per unit (in dollars per share)			$ 1.065
Common units outstanding (in shares)		80,591,366
Cash distribution related to incentive distribution rights		$ 44,200
EQM | Subsequent Event | Limited Partner
Class of Stock [Line Items]
Cash distribution in respect of limited partner interest		23,200
EQM | Subsequent Event | EQM General Partner Units
Class of Stock [Line Items]
Cash distribution related to general partner interest		$ 2,300
EQGP
Class of Stock [Line Items]
Cash distributions declared per unit (in dollars per share)					$ 0.244	$ 0.228	$ 0.21	$ 0.191
Cash distribution in respect of limited partner interest					$ 64,944	$ 60,686	$ 55,895	$ 50,838
EQGP | Subsequent Event
Class of Stock [Line Items]
Cash distributions declared per unit (in dollars per share)			$ 0.258
Cash distribution in respect of limited partner interest			$ 68,671
[1]	Represents the cash distributions declared related to the period presented. See Note I.

Consolidated Variable Interes39

Consolidated Variable Interest Entity (Details) - Variable Interest Entity, Primary Beneficiary - USD ($) $ in Thousands	Mar. 31, 2018	Dec. 31, 2017
Cash and cash equivalents
Variable Interest Entity [Line Items]
Assets	$ 8,988	$ 2,557
Accounts receivable
Variable Interest Entity [Line Items]
Assets	29,481	28,804
Accounts receivable – affiliate
Variable Interest Entity [Line Items]
Assets	91,655	103,304
Other current assets
Variable Interest Entity [Line Items]
Assets	17,217	12,662
Net property, plant and equipment
Variable Interest Entity [Line Items]
Assets	2,864,040	2,804,059
Investment in unconsolidated entity
Variable Interest Entity [Line Items]
Assets	546,428	460,546
Other assets
Variable Interest Entity [Line Items]
Assets	135,466	136,895
Accounts payable
Variable Interest Entity [Line Items]
Liabilities	48,189	47,040
Due to related party
Variable Interest Entity [Line Items]
Liabilities	23,769	31,673
Capital contribution payable to MVP Joint Venture
Variable Interest Entity [Line Items]
Liabilities	65,786	105,734
Accrued interest
Variable Interest Entity [Line Items]
Liabilities	11,376	10,926
Accrued liabilities
Variable Interest Entity [Line Items]
Liabilities	15,103	16,871
EQM credit facility borrowings
Variable Interest Entity [Line Items]
Liabilities	317,000	180,000
EQM senior notes
Variable Interest Entity [Line Items]
Liabilities	987,756	987,352
Regulatory and other long-term liabilities
Variable Interest Entity [Line Items]
Liabilities	$ 20,880	$ 20,273

Subsequent Events (Details)

Subsequent Events (Details)	Apr. 25, 2018USD ($)	Jun. 30, 2018USD ($)shares	Mar. 31, 2018USD ($)	Jun. 30, 2018USD ($)	Sep. 30, 2018USD ($)
Revolving Credit Facility | RMP $850 Million Facility
Subsequent Event [Line Items]
Maximum borrowing capacity			$ 850,000,000
EQM | EQM Term Loan Facility | Subsequent Event
Subsequent Event [Line Items]
Maximum borrowing capacity	$ 2,500,000,000
Line of credit expiration period	364 days
EQM | Revolving Credit Facility
Subsequent Event [Line Items]
Maximum borrowing capacity			$ 1,000,000,000
Strike Force Midstream Holdings LLC | Strike Force Midstream | Drop-Down Transactions
Subsequent Event [Line Items]
Limited partner ownership interest (as a percent)			75.00%
Scenario, Forecast | EQM-RMP Merger
Subsequent Event [Line Items]
Termination reimbursement amount					$ 5,000,000
Scenario, Forecast | IDR Transaction
Subsequent Event [Line Items]
Equity interest issued or issuable (in shares) | shares		36,293,766
Number of shares cancelled if terminated (in shares) | shares		8,539,710
Scenario, Forecast | Rice Midstream Partners, LP | EQM-RMP Merger
Subsequent Event [Line Items]
Common share conversion ratio					0.3319
Termination reimbursement amount					$ 5,000,000
Termination fee					$ 63,400,000
Scenario, Forecast | EQM | Drop-Down Transactions
Subsequent Event [Line Items]
Equity interest issued or issuable (in shares) | shares		5,889,282
Payments to acquire businesses, gross		$ 1,150,000,000
Scenario, Forecast | EQM | Gulfport Energy Corporation
Subsequent Event [Line Items]
Percentage of voting interests acquired		25.00%		25.00%
Consideration transferred				$ 175,000,000