 CANONSBURG, Pa.--BUSINESS WIRE-- ETRN--Equitrans Midstream Corporation NYSE: ETRN, today, announced financial and operational results for the full-year and fourth quarter 2020. Included in the Non-GAAP Disclosures section of this news release are important disclosures regarding the use of non-GAAP supplemental financial measures, including information regarding their most comparable GAAP financial measure. 2020 Highlights: Generated 638 million of net income and achieved 1,215 million of adjus 