X- I/A •fable of Contents make certain investments; sell certain assets; create liens on certain assets to secure debt; consolidate, merge, sell or otherwise dispose of all or substantially all of our assets: enter into certain transactions with affiliates; and designate our subsidiaries as unrestricted subsidiaries. In addition, the indenture governing the 12.625% Notes imposes certain requirements as to future subsidiary guarantors. The indenture governing the 12.625% Notes also contains certain customary• events of default. 11.25% Senior Unsecured Notes due 2021 Overview On February 13, 2013, we issued and sold $785 million aggregate principal amount of our 11.25% Notes. Pmecals from the offering were used to repurchase our 10.55% P1K Notes and to pay related transaction expenses. On July 21, 2014, we redeemed $275 million aggregate principal amount of the 11.25% Notes, leaving a remainder of $510 million aggregate principal amount of the 11.25% Notes outstanding. Interest Rate Interest on the 11.25% Notes is payable in cash and accrues at the rate of 11.25% per annum. Interest on the 11.25% Notes is payable semi-annually in arrears on May 15 and November 15, commencing on November 15, 2013. Ranking and Security The 11.25% Notes arc senior unsecured obligations and (i) rank senior in right of payment to any existing and future subordinated indebtedness, including our existing senior subordinated notes, (ii) rank equally in right of payment with all of our existing and future senior indebtedness, (iii) are effectively junior in right of payment to all existing and future secured indebtedness, including our senior secured credit facilities, our existing senior secured notes to the extent of the value of the collateral and (iv) arc effectively subordinated to all existing and future indebtedness and other liabilities of our non-guarantor subsidiaries (other than indebtedness and liabilities owed to us or one of our guarantor subsidiaries). P