Prospectus excerpt:  We are offering 6,000,000 of our 7.875% Series B Fixed-to-Floating Rate Cumulative Redeemable Perpetual Preferred Units, with a liquidation preference of $25.00 per unit (the ìSeries B Preferred Unitsî). Distributions on the Series B Preferred Units are cumulative from the date of original issue and will be payable quarterly in arrears on the 15th day of March, June, September and December when, as and if declared by DCP Midstream GP, LLC, the general partner of our general partner, DCP Midstream GP, LP. The pro-rated initial distribution on the Series B Preferred Units offered hereby will be payable on September 15, 2018 in an amount equal to approximately $0.6781 per Series B Preferred Unit. Distributions on the Series B Preferred Units will be payable out of amounts legally available therefor from and including the date of original issue to, but not including, June 15, 2023 at a rate equal to 7.875% per annum of the $25.00 liquidation preference. On and after June 15, 2023 distributions on the Series B Preferred Units will accumulate at a percentage of the $25.00 liquidation preference equal to an annual floating rate of the three-month LIBOR plus a spread of 4.919%.