Exhibit 23.1
CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM
We hereby consent to the incorporation by reference in this Registration Statement on Form S-8of Southwestern Energy Company of our report dated March 1, 2018 relating to the financial statements and the effectiveness of internal control over financial reporting, which appears inSouthwestern Energy Company’s Annual Report on Form10-K for the year ended December 31, 2017.
/s/ PricewaterhouseCoopers LLP
Houston, Texas
November 30, 2018