Common use of Securities Offered Clause in Contracts

Securities Offered. 7.625% Series B Cumulative Redeemable Preferred Units (the “units”). Number of Units: 7,000,000 units. Number of Option Units: 1,050,000 units. Public Offering Price: $25.00 per unit; $175,000,000 total. Underwriting Discounts: $0.7875 per unit; $5,512,000 total. Maturity Date: Perpetual (unless redeemed by the issuer on or after April 15, 2024). Ratings: The units will not be rated. Trade Date: March 4, 2014. Settlement Date: March 11, 2014 (T+5). Liquidation Preference: $25.00, plus accumulated and unpaid distributions. Distribution Rate: 7.625% per annum of the $25.00 per unit liquidation preference (equivalent to $1.90625 per unit per annum). Distribution Payment Dates: Monthly on the 15th day of each month, commencing on May 15, 2014.

Securities Offered. 7.6257.75% Series B C Cumulative Redeemable Preferred Units (the “units”). Number of Units: 7,000,000 4,000,000 units. Number of Option Units: 1,050,000 600,000 units. Public Offering Price: $25.00 per unit; $175,000,000 100,000,000 total. Underwriting Discounts: $0.7875 per unit; $5,512,000 3,150,000 total. Maturity Date: Perpetual (unless redeemed by the issuer on or after April October 15, 2024). Ratings: The units will not be rated. Trade Date: March 4September 10, 2014. Settlement Date: March 11September 15, 2014 (T+5T+3). Liquidation Preference: $25.00, plus accumulated and unpaid distributions. Distribution Rate: 7.6257.75% per annum of the $25.00 per unit liquidation preference (equivalent to $1.90625 1.9375 per unit per annum). Distribution Payment Dates: Monthly on the 15th day of each month, commencing on May November 15, 2014.

Securities Offered. 7.6258.625% Series B Class D Cumulative Redeemable Perpetual Preferred Units (the “units”). Number of Units: 7,000,000 3,200,000 units. Number of Option Units: 1,050,000 480,000 units. Public Offering Price: $25.00 per unit; $175,000,000 80,000,000 total. Underwriting Discounts: $0.7875 per unit; $5,512,000 2,520,000 total. Maturity Date: Perpetual (unless redeemed by the issuer on or after April October 15, 20242019). Ratings: The units will not be rated. Trade Date: March 4September 25, 2014. Settlement Date: March 11October 2, 2014 (T+5). Liquidation Preference: $25.00, plus accumulated and unpaid distributions. Distribution Rate: 7.6258.625% per annum of the $25.00 per unit liquidation preference (equivalent to $1.90625 2.15625 per unit per annum). Distribution Payment Dates: Monthly on the 15th day of each month, commencing on May 15, 2014.

Securities Offered. 7.625% Series B A Cumulative Redeemable Preferred Units (the “units”). Number of Units: 7,000,000 2,200,000 units. Number of Option Units: 1,050,000 330,000 units. Public Offering Price: $25.00 per unit; $175,000,000 55,000,000 total. Underwriting Discounts: $0.7875 per unit; $5,512,000 1,732,500 total. Maturity Date: Perpetual (unless redeemed by the issuer on or after April June 15, 20242023). Ratings: The units Series A Cumulative Redeemable Preferred Units will not be rated. Trade Date: March 4June 12, 20142013. Settlement Date: March 11June 19, 2014 2013 (T+5). Liquidation Preference: $25.00, plus accumulated and unpaid distributions. Distribution Rate: 7.6257.875% per annum of the $25.00 per unit liquidation preference (equivalent to $1.90625 1.9688 per unit per annum). Distribution Payment Dates: Monthly on the 15th day of each month, commencing on May 15, 2014.