Williams CEO to Present at Scotia Howard Weil Energy Conference

Williams (NYSE: WMB) President and Chief Executive Officer Alan Armstrong is scheduled to present at the 43rd Annual Scotia Howard Weil Energy Conference on Tuesday, March 24, at approximately 10:40 a.m. EDT.

Armstrong, who also serves as CEO of Williams Partners L.P.’s (NYSE: WPZ) general partner, will be providing an update on Williams’ and Williams Partners’ businesses.

Armstrong’s presentation will be available at www.williams.com on the morning of March 24.

About Williams

Williams (NYSE: WMB) is a premier provider of large-scale infrastructure to connect North American natural gas and natural gas products to growing demand for cleaner fuel and feedstocks. Headquartered in Tulsa, Okla., Williams owns approximately 60 percent of Williams Partners L.P. (NYSE: WPZ), including the general-partner interest. Williams Partners is an industry-leading, large-cap master limited partnership with operations across the natural gas value chain from gathering, processing and interstate transportation of natural gas and natural gas liquids to petchem production of ethylene, propylene and other olefins. With major positions in top U.S. supply basins and also in Canada, Williams Partners owns and operates more than 33,000 miles of pipelines system wide – including the nation’s largest volume and fastest growing pipeline – providing natural gas for clean-power generation, home heating and industrial use. Williams Partners’ operations touch approximately 30 percent of U.S. natural gas. www.williams.com

Portions of this document may constitute “forward-looking statements” as defined by federal law. Although the company 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 the company’s annual reports filed with the Securities and Exchange Commission.

WilliamsMedia Contact:Tom Droege, 918-573-4034orInvestor Contacts:John Porter, 918-573-0797orBrett Krieg, 918-573-4614