Williams (NYSE: WMB) announced today that the company has been recognized across several key rankings for sustainability leadership – including the Dow Jones Sustainability Index (DJSI), S&P Global Corporate Sustainability Assessment (CSA) and MSCI – for its commitment to transparency and performance related to long-term economic, environmental, social and governance criteria.

Notably, Williams was named for the fifth consecutive year to the DJSI North America index and for the fourth consecutive year to the DJSI World index. Williams also holds the top score in the 2024 Corporate Sustainability Assessment in the North American Oil & Gas Storage & Transportation industry.

“With demand for clean energy on the rise, natural gas is playing a critical role in moving the world to a low-carbon future,” said Alan Armstrong, president and chief executive officer of Williams. “As one of the nation’s largest natural gas infrastructure companies, Williams remains committed to operating our business sustainably, and these rankings underscore our focus on responsible corporate stewardship, emissions transparency and reduction, and continuous improvement.”

Williams’ sustainability rankings are as follows:*

• Dow Jones Sustainability Index (DJSI): Williams was named for the fifth consecutive year to the DJSI North America index and for the fourth consecutive year to the DJSI World index.
• S&P Global: Williams received the top score in the 2024 Corporate Sustainability Assessment (CSA) in the North America Oil & Gas Storage & Transportation industry.
• CDP: Received an ‘A-’ score on the 2024 CDP Climate Change Questionnaire.
• MSCI: upgraded to ‘AA’ from ‘A’, illustrating ongoing ESG leadership in the Oil & Gas Refining, Marketing, Transportation & Storage industry.
• GRESB: Maintained GRESB Public Disclosure Level A score for 2024 and ranked first within U.S. Energy and Water Resources Comparison Group.

To read the company’s latest Sustainability Report, visit https://www.williams.com/sustainability/.

*All ESG ratings and rankings verified as of February 6, 2025.

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.

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