Prospectus excerpt:  We are offering 4,400,000 units of our 8.25% Class E Cumulative Redeemable Perpetual Preferred Units, or the Class E Preferred Units, with a liquidation preference of $25.00 per Class E Preferred Unit.

Distributions on the Class E Preferred Units are cumulative from the date of original issue and will be payable quarterly in arrears on January 15, April 15, July 15 and October 15 of each year, when, as and if declared by the board of managers of our general partner, which we refer to as the Board. The initial distribution on the Class E Preferred Units offered hereby will be payable on July 15, 2014 in an amount equal to $0.67604 per unit. Distributions on the Class E Preferred Units will be payable out of amounts legally available therefor at an initial rate equal to 8.25% per annum of the stated liquidation preference.

At any time on or after March 17, 2019, we may redeem the Class E Preferred Units, in whole or in part, out of amounts legally available therefor, at a redemption price of $25.00 per unit plus an amount equal to all accumulated and unpaid distributions thereon to the date of redemption, whether or not declared. We may also redeem the Class E Preferred Units upon a Change of Control as described in ŁThe Offering ? Change of Control.ˆ