Asset and Organic Growth Investments

Cautionary Statement € This presentation contains certain forward-looking statements within the meaning of Section 21E of the United States Securities Exchange Act of 1934, as amended (the Exchange Act), and Section 27A of the United States Securities Act of 1933, as amended (the Securities Act), concerning ETRN and other matters. These statements may discuss goals, intentions and expectations as to future plans, trends, events, results of operations or financial condition, or otherwise, based on current beliefs of the management of ETRN, as well as assumptions made by, and information currently available to, such management. Words such as "could," "will," "may," "assume," "forecast," "position," "predict," "strategy," "expect," "intend," "plan," "estimate," "anticipate," "believe," "project," "budget," "potential," "target," "outlook," or "continue," and similar expressions are used to identify forward-looking statements. These statements are subject to various risks and uncertainties, many of which are outside ETRN's control. Without limiting the generality of the foregoing, forward-looking statements contained in this communication specifically include expectations of plans, strategies, objectives and growth and anticipated financial and operational performance of ETRN and its affiliates, including guidance and any changes in such guidance regarding ETRN's gathering, transmission and storage and water service revenue and volume growth, including the anticipated effects associated with the February 2020 Gas Gathering and Compression Agreement and related documents entered into with EQT Corporation (EQT) (collectively, the EQT Global GGA); projected revenue (including from firm reservation fees) and volumes, deferred revenues, expenses, and contract liabilities, and the effects on liquidity, projected revenue, deferred revenue and contract liabilities associated with the EQT Global GGA and the MVP project (including changes in the targeted full in-service date for such project); the amount of offset credits ultimately acquired by MVP JV for purposes of the MVP, sources thereof, and duration of the period for which such credits are acquired; the costs of such offset credits and the impact thereof on ETRN's annual incremental adjusted EBITDA, free cash flow and retained free cash flow; the size and scope of the methane abatement project from which offset credits are to be sourced and its ability to generate offset credits; the ultimate gathering fee relief provided to EQT under the EQT Global GGA and related agreements, including the exercise by EQT of any cash-out option as an alternative to receiving a portion of such relief; ETRN's ability to de-lever; forecasted adjusted EBITDA (and incremental adjusted EBITDA with MVP full in-service), water operating income, water EBITDA, net income, free cash flow, retained free cash flow, leverage ratio, and deferred revenue; the weighted average contract life of gathering, transmission and storage contracts; infrastructure programs (including the timing, cost, capacity and sources of funding with respect to gathering, transmission and storage and water projects); the cost, capacity, shippers for, timing of regulatory approvals, final design (including expansions or extensions and capital and incremental adjusted EBITDA related thereto), ability to contract additional capacity on and targeted in-service dates of current or in-service projects or assets, in each case as applicable; the ultimate terms, partner relationships and structure of Mountain Valley Pipeline, LLC (MVP JV) and ownership interests therein; the impact of changes in the targeted full in-service date of the MVP project on, among other things, the fair value of the Henry Hub cash bonus provision of the EQT Global GGA; expansion projects in ETRN's operating areas and in areas that would provide access to new markets; ETRN's ability to provide produced water handling services and realize expansion opportunities and related capital avoidance; ETRN's ability to identify and complete acquisitions and other strategic transactions, including joint ventures, effectively integrate transactions into ETRN's operations, and achieve synergies, system optionality and accretion associated with transactions, including through increased scale; ETRN's ability to access commercial opportunities and new customers for its water services business, and the timing and final terms of any definitive water services agreement or agreements between EQT and ETRN entered into pursuant to the letter agreement between the parties in respect of water services (Water Services Letter Agreement); any credit rating impacts associated with the MVP project, customer credit ratings changes, including EQT's, and defaults, acquisitions, dispositions and financings and any changes in EQM's credit ratings; the impact of the dispute with EQT (or resolution thereof) regarding the Hammerhead gathering agreement and/or ownership of the Hammerhead pipeline on ETRN's business and results of operations; the impact of such dispute (or resolution thereof) on investors' perceptions of ETRN's commercial relationship with EQT; the effect and outcome of future litigation and other proceedings, including regulatory proceedings; the effects of any consolidation of or effected by upstream gas producers, whether in or outside of the Appalachian Basin; the ability of ETRN's contracts to survive a customer bankruptcy or restructuring, the outcome of any attempt to reject such contracts in such contexts (or related negotiations) and the impact on the Company's results of operations and liquidity of a customer bankruptcy or restructuring; the timing and amount of future issuances or repurchases of ETRN's securities; the effects of conversion, if at all, of ETRN's preferred shares; the effects of seasonality; expected cash flows and MVCS, including those associated with the EQT Global GGA and any definitive agreement or agreements between EQT and the Company related to the Water Services Letter Agreement, and the potential impacts thereon of the commission timing and cost of the MVP project; projected capital contributions and capital and operating expenditures, including the amount and timing of reimbursable capital expenditures, capital budget and sources of funds for capital expenditures; dividend amounts, timing and rates; changes in commodity prices and the effect of commodity prices on ETRN's business; future decisions of customers in respect of curtailing natural gas production, choke management, timing of turning wells in line, rig and completion activity and related impacts on ETRN's business; liquidity and financing requirements, including sources and availability; interest rates; the ability of ETRN's subsidiaries (some of which are not wholly owned) to service debt under, and comply with the covenants contained in, their respective credit agreements; the MVP JV's ability to raise project-level debt; expectations regarding production, gathered and water volumes in ETRN's areas of operations; ETRN's ability to achieve anticipated benefits associated with the execution of the EQT Global GGA, the Water Services Letter Agreement and related agreements; the impact on ETRN and its subsidiaries of the coronavirus disease 2019 (COVID-19) pandemic, including, among other things, effects on demand for natural gas and ETRN's services, levels of production of associated gas from basins such as the Permian basin, commodity prices and access to capital; ETRN's ability to achieve its ESG and sustainability goals (including goals set forth in its climate policy); the effects of government regulation; and tax status and position. These forward-looking statements involve risks and uncertainties that could cause actual results to differ materially from projected results. Accordingly, investors should not place undue reliance on forward-looking statements as a prediction of actual results. ETRN has based these forward-looking statements on current expectations and assumptions about future events. While ETRN considers these expectations and assumptions to be reasonable, they are inherently subject to significant business, economic, competitive, regulatory, judicial and other risks and uncertainties, many of which are difficult to predict and are beyond ETRN's control. The risks and uncertainties that may affect the operations, performance and results of ETRN's business and forward-looking statements include, but are not limited to, those set forth under "Item 1A. Risk Factors" in ETRN's Annual Report on Form 10-K for the year ended December 31, 2020 filed with the Securities and Exchange Commission (the SEC), as updated by the risk factors disclosed under Part II, "Item 1A. Risk Factors," of ETRN's Quarterly Report on Form 10-Q for the three months ended March 31, 2021 to be filed with the SEC and ETRN's subsequent filings. Any forward-looking statement speaks only as of the date on which such statement is made, and ETRN does not intend to correct or update any forward-looking statement, unless required by securities laws, whether as a result of new information, future events or otherwise. As forward-looking statements involve significant risks and uncertainties, caution should be exercised against placing undue reliance on such statements. 27