Williams (NYSE: WMB) President and Chief Executive Officer Alan Armstrong is scheduled to present at the 2013 Barclays Capital CEO Energy-Power Conference on Thursday, Sept. 12, at approximately 1 p.m. EDT. A link to the live webcast of Armstrong’s presentation, along with slides for viewing and downloading, will be available at www.williams.com on the morning of Sept. 12. About Williams (NYSE: WMB) Williams is one of the leading energy infrastructure companies in North America. It owns interests in or operates 15,000 miles of interstate gas pipelines, 1,000 miles of NGL transportation pipelines, and more than 10,000 miles of oil and gas gathering pipelines. The company's facilities have daily gas processing capacity of 6.6 billion cubic feet of natural gas, NGL production of more than 200,000 barrels per day and domestic olefins production capacity of 1.35 billion pounds of ethylene and 90 million pounds of propylene per year. Williams owns approximately 62.4 percent of Williams Partners L.P. (NYSE: WPZ), one of the largest diversified energy master limited partnerships. Williams Partners owns most of Williams' interstate gas pipeline and domestic midstream assets. Williams also owns Canadian operations and certain domestic olefins pipelines assets, as well as a significant investment in Access Midstream Partners, L.P. (NYSE: ACMP), a midstream natural gas services provider. The company's headquarters is in Tulsa, Okla. For more information, visit www.williams.com, where the company routinely posts important information. 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.