Year Ended December 31,

Three
Months
Ended
March 31,

2012

2013

2014

2015

2016

2017

Pre-tax income (loss) from continuing operations

$

346,505

$

162,023

$

1,117,049

$

1,517,254

$

(1,345,192

)

$

399,742

Fixed charges

$

97,877

$

137,343

$

163,458

$

231,551

$

235,544

$

58,491

Total adjusted earnings available for payment of fixed charges

$

444,382

$

299,366

$

1,280,507

$

1,748,805

$

(1,109,648

)

$

458,233

Fixed charges

Interest expense, including amortization of debt-related expenses

$

97,510

$

136,617

$

160,051

$

228,568

$

232,455

$

58,003

Rental expense representative of interest factor

$

367

$

726

$

3,407

$

2,983

$

3,089

$

488

Total fixed charges

$

97,877

$

137,343

$

163,458

$

231,551

$

235,544

$

58,491

Ratio of earnings to fixed charges

4.54

X

2.18

X

7.83

X

7.55

X

NA

(1)

7.83

X