For the Years Ended December 31,

2017

2016

2015

2014

2013

(in thousands, except ratios)

Earnings (Loss):

Net income (loss)

$

(46,755

)

$

(89,061

)

$

(459,507

)

$

50,953

$

49,342

Add: Fixed Charges

46,291

38,522

34,796

32,138

16,598

Add: Amortization of capitalized interest

1,216

1,389

896

594

883

Less: Interest capitalized

(7,207

)

(3,103

)

(3,879

)

(4,347

)

(3,284

)

Net income (loss), as adjusted

$

(6,455

)

$

(52,253

)

$

(427,694

)

$

79,338

$

63,539

Fixed Charges:

Total interest expensed

$

35,185

$

33,368

$

30,981

$

28,851

$

14,130

Amortization of financing costs

10,977

4,981

3,584

3,067

2,322

Estimated interest portion of operating leases

129

173

231

220

146

Total fixed charges

$

46,291

$

38,522

$

34,796

$

32,138

$

16,598

Fixed Charges and Fixed Charge Ratio:

Earnings (deficiency) to fixed charges

$

(52,746

)

$

(90,775

)

$

(462,490

)

$

47,200

$

46,941

Earnings to fixed charges ratio

—

—

—

2.5x

3.8x