Quarterly report pursuant to Section 13 or 15(d)

Long-Term Debt

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Long-Term Debt
6 Months Ended
Jun. 30, 2013
Long-Term Debt

6.  Long-Term Debt

Our long-term debt was as follows (in thousands):

 

 

June 30,

2013

 

December 31,

2012

8.50% Senior Notes

$

  900,000

 

$

  900,000

Debt premiums, net of amortization

 

  16,537

 

 

  17,611

Revolving bank credit facility

 

  183,000

 

 

  170,000

Total long-term debt

 

  1,099,537

 

 

  1,087,611

Current maturities of long-term debt

 

 

 

Long-term debt, less current maturities

$

  1,099,537

 

$

  1,087,611

At June 30, 2013 and December 31, 2012, the balance outstanding of our senior notes, which bear an annual interest rate of 8.50% and mature on June 15, 2019 (the “8.50% Senior Notes”), was classified as long-term at their carrying value.  Interest on the 8.50% Senior Notes is payable semi-annually in arrears on June 15 and December 15.  The estimated annual effective interest rate on the 8.50% Senior Notes is 8.4%, which includes amortization of debt issuance costs and premiums.  We are subject to various financial and other covenants under the indenture governing the 8.50% Senior Notes and we were in compliance with those covenants as of June 30, 2013. 

The Fourth Amended and Restated Credit Agreement (the “Credit Agreement”) governs our revolving bank credit facility and terminates on May 5, 2015Borrowings under our revolving bank credit facility are secured by our oil and natural gas properties.  Availability under such facility is subject to a semi-annual redetermination of our borrowing base that occurs in the spring and fall of each year and is calculated by our lenders based on their evaluation of our proved reserves and their own internal criteria. 

At June 30, 2013 and December 31, 2012, we had $0.1 million of letters of credit outstanding under the revolving bank credit facility.  The estimated annual effective interest rate was 4.1% for the six months ended June 30, 2013 for borrowings under the revolving bank credit facility.  The estimated annual effective interest rate includes amortization of debt issuance costs and excludes commitment fees and other costs.  As of June 30, 2013, our borrowing base was $800.0 million and our borrowing availability was $616.9 million. 

Under the Credit Agreement, we are subject to various financial covenants calculated as of the last day of each fiscal quarter, including a minimum current ratio and a maximum leverage ratio, each as defined in the Credit Agreement.  We were in compliance with all applicable covenants of the Credit Agreement as of June 30, 2013.

For information about fair value measurements for our 8.50% Senior Notes and revolving bank credit facility, refer to Note 7.