Note 5 – Senior Notes

Our Senior Notes are summarized as follows (in thousands):


	June 30, 2016		December 31, 2015
7.50% Senior Convertible Notes due 2016	$	—	$	46,793
8.50% Senior Notes due 2019		200,000		200,000
6.00% Senior Convertible Notes due 2020		80,000		80,000
Senior Secured Credit Facility		35,000		—
Total Senior Notes		315,000		326,793
Deferred debt issuance costs		(5,082)		(5,877)
Debt discount		(62)		(70)
Total Senior Notes, net	$	309,856	$	320,846

We made interest payments of $0.0 million and $12.8 million for the three and six months ended June 30, 2016, respectively. We made interest payments of $9.7 million and $22.0 million for the three and six months ended June 30, 2015, respectively. We were in compliance with all debt covenants as of June 30, 2016 and December 31, 2015.

7.50% Senior Convertible Notes and 7.50% Senior Exchange Convertible Notes due 2016

On February 4, 2011, we completed an underwritten public offering for $100.0 million aggregate principal amount of our 7.50% Senior Convertible Notes due 2016 (the “7.50% Notes”). The maturity date of the 7.50% Notes was February 15, 2016. The 7.50% Notes were governed by the Indenture and the First Supplemental Indenture, each dated February 4, 2011, between us and the trustee named therein. Interest on the 7.50% Notes was payable semi-annually in arrears in cash on February 15 and August 15 of each year.

In July 2012, we entered into exchange agreements under which we retired $44.5 million in aggregate principal amount of our 7.50% Notes, in exchange for the issuance of $44.5 million in aggregate principal of new 7.50% Senior Exchange Convertible Notes due 2016 (“7.50% Exchange Notes”). The maturity date of the 7.50% Exchange Notes was February 15, 2016. The 7.50% Exchange Notes are governed by the Indenture dated February 4, 2011 and the Second Supplemental Indenture dated July 25, 2012 between us and the trustee named therein. Interest on the 7.50% Exchange Notes was payable semi-annually in arrears in cash on February 15 and August 15 of each year, commencing February 15, 2013. In connection with the issuance of the 6.00% Notes (defined below), $20.5 million of 7.50% Exchange Notes and $8.7 million of 7.50% Notes were repurchased on June 23, 2015. On July 20, 2015, the remaining 7.50% Exchange Notes were redeemed, pursuant to our option to redeem such notes at a redemption price equal to 100% of the principal amount plus accrued and unpaid interest. On February 16, 2016, the remaining 7.50% Notes were repaid at maturity.

8.50% Senior Notes due 2019

On June 30, 2014, we completed an underwritten offering for $200.0 million aggregate principal amount of our 8.50% Senior Notes due 2019 (the “8.50% Notes”). The 8.50% Notes mature on July 1, 2019, unless earlier converted, redeemed or repurchased. Interest on the 8.50% Notes is 8.50% per year, payable semi-annually in arrears in cash on January 1 and July 1 of each year, commencing January 1, 2015. The 8.50% Notes are redeemable at our option, in whole or in part, at any time on or after July 1, 2016, at certain redemption prices, together with accrued and unpaid interest, if any, to, but excluding, the date of redemption.

Certain of our subsidiaries are guarantors of the 8.50% Senior Notes. All of the subsidiary guarantors are 100% owned by us, and all of the guarantees are full, unconditional, and joint and several. We have no independent assets or operations and our subsidiaries, other than the subsidiary guarantors, are minor.

6.00% Senior Convertible Notes due 2020

On June 23, 2015, we completed a private offering of $80.0 million aggregate principal amount of 6.00% Senior Convertible Notes due 2020 (the “6.00% Notes”). The proceeds of the 6.00% Notes were used to (i) repurchase 7.50% Exchange Notes and 7.50% Notes, and (ii) pay approximately $1.5 million of accrued interest (in respect of the notes being exchanged or repurchased) and premium (in respect of the notes being repurchased). The 6.00% Notes will mature on July 1, 2020, unless earlier repurchased or converted. The 6.00% Notes are governed by the Indenture dated February 4, 2011 and the Third Supplemental Indenture dated June 23, 2015 between us and the trustee named therein. The 6.00% Notes bear regular cash interest on the principal amount of each note, payable semi-annually in arrears on January 1 and July 1 of each year, beginning on January 1, 2016.

The 6.00% Notes were issued pursuant a series of separate, privately negotiated note purchase agreements (the “Note Purchase Agreements”) entered into on June 17, 2015 by us and certain qualified institutional buyers. TPG Aviator, L.P. (“TPG”), purchased $20.0 million aggregate principal amount of the 6.00% Notes for $20.0 million in cash and waived its rights to purchase additional 6.00% Notes, resulting in a fully diluted beneficial ownership of approximately 43.8% of our common stock. Pursuant to the terms of our Related Person Transaction Policy, the audit committee of our board of directors reviewed and approved the terms of the 6.00% Notes and TPG’s purchase of 6.00% Notes.

Senior Secured Credit Facility

On April 7, 2014 we entered into a $65.0 million senior secured credit facility with JPMorgan Chase Bank, N.A., as agent, a lender and a letter of credit issuer, which became effective on June 6, 2014 (the “Senior Secured Credit Facility”). The other original lenders and letter of credit issuers include Royal Bank of Canada and Credit Suisse AG. Later in 2014, we increased the Senior Secured Credit Facility by $40.0 million with the addition of Citibank, N.A., and Deutsche Bank, A.G., as additional lenders.

The Senior Secured Credit Facility includes revolving credit and letter of credit facilities in an aggregate principal amount of up to $105.0 million, with an “accordion” feature that allows us, with the consent of the lenders, to increase the aggregate amount to $175.0 million. The Senior Secured Credit Facility also includes a swing line loan facility in an aggregate principal amount of up to $30.0 million. As of June 30, 2016, we had sufficient qualified assets in the borrowing base to cover the full $105.0 million capacity and had $35.0 million borrowings outstanding.

On July 28, 2016, we upsized and extended our Senior Secured Credit Facility through July 28, 2019. See Note 10, Subsequent Events.