Williams Prices $2.1 Billion of Senior Notes

Williams (NYSE: WMB) announced today that it has priced a public offering of $1.1 billion of its 4.900% Senior Notes due 2029 at a price of 99.839 percent of par and $1.0 billion of its 5.150% Senior Notes due 2034 at a price of 99.975 percent of par. The expected settlement date for the offering is January 5, 2024, subject to the satisfaction of customary closing conditions.

Williams intends to use the net proceeds of the offering for general corporate purposes, which may include the repayment of our outstanding commercial paper notes or other near-term debt maturities.

Barclays Capital Inc., Citigroup Global Markets Inc., Truist Securities, Inc. and Wells Fargo Securities, LLC are acting as joint book-running managers for the offering.

This news release is neither an offer to sell nor a solicitation of an offer to buy any of these securities and shall not constitute an offer, solicitation or sale in any jurisdiction in which such offer, solicitation or sale is unlawful.

An automatic shelf registration statement relating to the notes was previously filed with the Securities and Exchange Commission (the “SEC”) and became effective upon filing. Before you invest, you should read the prospectus in the registration statement and other documents Williams has filed with the SEC for more complete information about Williams and the offering. A copy of the prospectus and prospectus supplement relating to the offering may be obtained on the SEC website at www.sec.gov or from any of the underwriters by contacting:

Barclays Capital Inc.

c/o Broadridge Financial Solutions

1155 Long Island Avenue

Edgewood, New York 11717

Telephone: 1 (888) 603-5847

Email: barclaysprospectus@broadridge.com

Citigroup Global Markets Inc.

c/o Broadridge Financial Solutions

1155 Long Island Avenue

Edgewood, New York 11717

Telephone: 1 (800) 831-9146

Email: prospectus@citi.com

Truist Securities, Inc.

303 Peachtree Street

Atlanta, Georgia 30308

Attention: Prospectus Department

Telephone: 1 (800) 685-4786

Wells Fargo Securities, LLC

608 2nd Avenue South, Suite 1000

Minneapolis, Minnesota 55402

Attention: WFS Customer Service

Telephone: 1 (800) 645-3751

About Williams

Williams (NYSE: WMB) is a trusted energy industry leader committed to safely, reliably, and responsibly meeting growing energy demand. We use our 33,000-mile pipeline infrastructure to move a third of the nation’s natural gas to where it's needed most, supplying the energy used to heat our homes, cook our food and generate low-carbon electricity. For over a century, we’ve been driven by a passion for doing things the right way. Today, our team of problem solvers is leading the charge into the clean energy future – by powering the global economy while delivering immediate emissions reductions within our natural gas network and investing in new energy technologies.

Portions of this document may constitute “forward-looking statements” as defined by federal law. Although Williams believes any such statements are based on reasonable assumptions, there is no assurance that actual outcomes will not be materially different. Any such statements are made in reliance on the “safe harbor” protections provided under the Private Securities Reform Act of 1995. Additional information about issues that could lead to material changes in performance is contained in Williams’ annual and quarterly reports filed with the SEC.

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