Nine Months

Ended

Year Ended December 31,

September 30,

2010

2011

2012

2013

2014

2015

Pre-tax income (loss) from continuing operations

$

1,155

$

456,485

$

346,505

$

162,023

$

1,117,049

$

1,281,609

Fixed charges

56,736

74,743

$

97,877

$

137,343

163,458

$

173,167

Total adjusted earnings available for payment of fixed charges

$

57,891

$

531,228

$

444,382

$

299,366

$

1,280,507

$

1,454,776

Fixed charges

Interest expense, including amortization of debt related expenses

$

56,463

$

74,404

$

97,510

$

136,617

$

160,051

$

170,989

Rental expense representative of interest factor

$

273

$

339

$

367

$

726

3,407

$

2,178

Total fixed charges

$

56,736

$

74,743

$

97,877

$

137,343

$

163,458

$

173,167

Ratio of earnings to fixed charges

1.02

X

7.11

X

4.54

X

2.18

X

7.83

X

8.40

X