TULSA, Okla.—Williams Partners LP (NYSE: WPZ) and ACMP Finance Corp. announced Feb. 26 that they have issued a notice of redemption to holders of the Issuers’ 4.875% senior notes due 2024, stating that the Issuers will redeem all of the outstanding notes for cash on March 28, 2018 at a redemption price equal to the sum of the principal amount of the notes plus the excess, if any, of (a) the present value at such time of (i) the redemption price of such note at March 15, 2019 (as set forth in the indenture governing the notes (the “indenture”)) plus (ii) any required interest payments due on such note through March 15, 2019 (except for currently accrued and unpaid interest), computed using a discount rate equal to the Treasury Rate (as defined in the Indenture) plus 50 basis points, discounted to the redemption date on a semi-annual basis (assuming a 360-day year consisting of twelve 30-day months), over (b) the principal amount of such Note, plus accrued and unpaid interest, if any, to the Redemption Date. The Issuers will calculate the Treasury Rate no later than the second Business Day (as defined in the Indenture) preceding the Redemption Date.

The terms and conditions of the redemption are fully described in the Notice of Redemption. Beneficial holders with any questions about the redemption should contact their respective brokerage firm or financial institution.