Williams’ (NYSE:WMB) top executive in Canada is scheduled to speak Tuesday, July 9, at the 2013 TD Securities Calgary Energy Conference. Williams Energy Canada President David Chappell’s presentation materials will be available at www.williams.com the morning of July 9. Chappell is on the conference agenda to speak at 12:35 p.m. EDT. The event will not be webcast. About Williams in Canada Williams is the world's only processor of oil sands upgrader offgas and operates the only olefins/NGL fractionators in western Canada. With a 90-year history in Canada, Williams' investment in Alberta is expected to total $1.7 billion, inclusive of projects that are completed and operational and those that are sanctioned and in progress. This total does not include the estimated cost of the planned PDH facility. Through operations in Fort McMurray and Alberta's Industrial Heartland, Williams reduces emissions from the oil sands and is a key contributor to the value-added upgrading of Alberta's energy resources. Williams owns and operates the 420-kilometer Boreal Pipeline that transports the NGL/olefins mix from our liquids extraction plant in Fort McMurray to our Redwater fractionators in Sturgeon County. For more information, visit www.williams.com/canada, where the company routinely posts important information. 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 68 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.