OREANDA-NEWS. March 30, 2017. Northwest Pipeline LLC (“Northwest”), a wholly owned subsidiary of Williams Partners L.P. (NYSE: WPZ), announced today that it is offering senior notes to certain institutional investors. The notes will be offered pursuant to certain exemptions from registration under the Securities Act of 1933, as amended (the “Securities Act”).

Northwest intends to use the net proceeds from the offering to repay its $185 million of 5.95% Senior Notes due 2017 upon their maturity on April 15, 2017, and for general corporate purposes.

The offering of the notes has not been registered under the Securities Act or applicable state securities laws. The notes may not be offered or sold in the United States absent registration or an applicable exemption from such registration requirements.

This press release is for informational purposes only and does not constitute an offer to sell or a solicitation of an offer to buy the notes described in this press release, nor shall there be any sale of the notes in any state or jurisdiction in which such an offer, sale or solicitation would be unlawful prior to registration or qualification under the securities laws of such jurisdiction.

Portions of this document may constitute “forward-looking statements” as defined by federal law. Although Northwest believes any such statements are based on reasonable assumptions, there is no assurance that actual outcomes will not be materially different. Additional information about issues that could lead to material changes in performance is contained in Northwest’s annual and quarterly reports filed with the Securities and Exchange Commission.