Williams (NYSE: WMB) is scheduled to host its annual Analyst Day event May 14.

During the event, Williams' management will give in-depth presentations covering all of Williams' and Williams Partners L.P.'s (NYSE:WPZ) energy infrastructure businesses. The event is scheduled from 8:30 a.m. to approximately 3 p.m. EDT.

On the day of the event, www.williams.com and www.williamslp.com will feature presentation files for download along with a link to a live webcast. A replay of the Analyst Day webcast will be available for two weeks following the event.

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 66 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.

About Williams Partners L.P. (NYSE: WPZ)

Williams Partners L.P. is a leading diversified master limited partnership focused on natural gas transportation; gathering, treating, and processing; storage; natural gas liquid (NGL) fractionation; and oil transportation. The partnership owns interests in three major interstate natural gas pipelines that, combined, deliver 14 percent of the natural gas consumed in the United States. The partnership’s gathering and processing assets include large-scale operations in the U.S. Rocky Mountains and both onshore and offshore along the Gulf of Mexico. Williams (NYSE: WMB) owns approximately 66 percent of Williams Partners, including the general-partner interest. More information is available at www.williamslp.com, where the partnership 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.