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Debt Obligations
12 Months Ended
Dec. 31, 2012
Debt Obligations [Abstract]  
Debt Obligations
(8) Debt Obligations
 
The following is a summary of the Company's outstanding debt balances at December 31:
 
(Thousands of dollars)
 
2012
  
2011
 
        
Long-term notes payable
 $326,704  $350,000 
          
Less current portion of long-term debt
  (26,250)  (17,500)
          
Long-term debt
 $300,454  $332,500 
 
Scheduled maturities of long-term debt in future years as of December 31, 2012 are as follows (in thousands of dollars):
 
2013
 $26,250 
2014
  52,500 
2015
  87,500 
2016
  160,454 
      
Total
 $326,704 
 
The Company has a five year secured credit facility with a group of lenders (the "Bank Facility") consisting of a revolving line of credit that provides up to $175.0 million of aggregate borrowing and a $350.0 million term loan. Under the Bank Facility the Company has granted a first priority lien, security interest and collateral assignment of substantially all of its current assets. The Bank Facility matures on November 30, 2016. Borrowings under the Bank Facility bear interest, at the Company's option, at either (A) the highest of (i) the Prime Rate, (ii) the Federal Funds Effective Rate plus 0.5%, and (iii) the Adjusted LIBO Rate for an Interest Period of one month plus 1.0%, in each case plus an Applicable Margin based on the Company's Leverage Ratio or (B) the interest rate equal to (i) the rate for US dollar deposits in the London interbank market for such Interest Period multiplied by (ii) the Statutory Reserve Rate, plus (iii) the Applicable Margin. Throughout the term of the Bank Facility, the Company pays an Unused Commitment Fee which ranges from 0.25 percent to 0.50 percent based on the Company's Leverage Ratio. As of December 31, 2012, $301.7 million of borrowings under the term loan and $25.0 million of borrowings under the revolving line of credit were outstanding. Additionally, there was $10.4 million in letters of credit outstanding against the revolving credit facility. As of December 31, 2012, the interest rate was 2.75% on the credit facility and the Company paid $10.2 million of interest expense in the year ended December 31, 2012. The carrying value of debt is not materially different from its fair value. The Company was in compliance with all financial covenants under the Bank Facility as of December 31, 2012 and had borrowing capacity of $139.6 million.

In addition, the Company's credit facility restricts the ability to declare and pay dividends on common stock when the payment of any such dividend would cause the Company to exceed specified leverage and fixed charge ratios.