Williams to Report Fourth-Quarter and Full-Year 2023 Financial Results Feb. 14; will host Clean Energy Expo Feb. 13 and Analyst Day event Feb. 14 in Washington D.C.

Williams (NYSE: WMB) will host a Clean Energy Expo in Washington D.C. on Tuesday, Feb. 13, focused on how Williams and the natural gas industry are delivering energy security and affordability while simultaneously reducing global emissions. Williams will demonstrate how the natural gas value chain is leveraging and developing cutting-edge and scalable technologies to reduce emissions ? from responsibly growing NextGen natural gas to displace high-emissions fuels, to the deployment of methane-monitoring satellites, real-time leak detection with AI, and efforts to develop high-efficiency clean hydrogen solutions. Convening industry leaders, policymakers and innovators, the expo will showcase how natural gas coupled with emerging technologies can be one of the most significant contributors to a clean energy future. The Expo will feature demonstrations from around 20 different companies and panel discussions with top leaders from Williams, Cheniere Energy, Inc. and EQT Corporation.

Williams plans to announce its fourth-quarter and full-year 2023 financial results before the market opens on Wednesday, Feb. 14, 2024, ahead of its 2024 Analyst Day event in Washington D.C., which is scheduled to begin at 8:30 a.m. Eastern Time (7:30 a.m. Central Time). During the event, Williams' management will give an in-depth presentation covering the company's natural gas-focused strategy to meet growing clean energy demands while also delivering shareholder value.

Presentation slides and earnings materials will be accessible on the Williams' Investor Relations website before market open on Feb. 14. Participants who wish to view the live presentation can access the webcast here: https://wmb.link/73f

A replay of the 2024 Analyst Day webcast will also be available on the website for at least 90 days following the event.

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. Learn more at www.williams.com.

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.