Exhibit 23.3
CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM
We consent to the incorporation by reference in this Registration Statement on FormS-3 of The Williams Companies, Inc. of our report dated February 22, 2017, relating to the financial statements of Gulfstream Natural Gas System, L.L.C. as of December 31, 2016 and for the years ended December 31, 2016 and 2015, appearing in the Annual Report on Form10-K of The Williams Companies, Inc. dated February 22, 2018, and to the reference to us under the heading “Experts” in the Prospectus, which is part of this Registration Statement.
/s/ DELOITTE & TOUCHE LLP
Houston, Texas
February 22, 2018
