Prospectus excerpt:  At any time or from time to time on or after June 15, 2021, we may, at our option, redeem the Series A Preferred Units, in whole or in part, at a price of $25.00 per Series A Preferred Unit plus declared and unpaid distributions, if any. See "Description of the Series A Preferred Units?Optional Redemption." If a Change of Control Event (defined herein) occurs prior to June 15, 2021, we may, at our option, redeem the Series A Preferred Units, in whole but not in part, at a price of $25.25 per Series A Preferred Unit plus declared and unpaid distributions, if any. If (i) a Change of Control Event occurs (whether before, on or after June 15, 2021) and (ii) we do not give notice prior to the 31st day following the Change of Control Event to redeem all the outstanding Series A Preferred Units, the distribution rate per annum on the Series A Preferred Units will increase by 5.00%, beginning on the 31st day following such Change of Control Event. See "Description of the Series A Preferred Units?Change of Control Redemption." The units will rank equally with other series of our parity units, junior to our senior units and senior to our junior units (as such terms are defined herein) with respect to payment of distributions and distribution of our assets upon our liquidation, dissolution or winding up. See "Description of the Series A Preferred Units?Ranking." The units will not have any voting rights, except as set forth under "Description of the Series A Preferred Units?Voting Rights."