 | Reconciliation of Adjusted EBITDA to Income (Loss) from Continuing Operations before Income Tax Adjusted EBITDA represents income (loss) from continuing operations before income taxes, interest expense, depreciation and amortization, earnings (loss) from unconsolidated affiliates, investment income (loss), impairments and other charges and other, net. Adjusted EBITDA is a non-GAAP financial measure and should not be used in isolation or as a substitute for the amounts reported in accordance with GAAP. In addition, adjusted EBITDA excludes certain cash expenses that the Company is obligated to make. However, management evaluates the performance of its operating segments and the consolidated Company based on several criteria, including adjusted EBITDA, because it believes that this financial measure accurately reflects the Company’s ongoing profitability and performance. Securities analysts and investors use this measure as one of the metrics on which they analyze the Company’s performance. Other companies in this industry may compute this measure differently. A reconciliation of this non-GAAP measure to income (loss) from continuing operations before income taxes, which is the most closely comparable GAAP measure, is provided below. Th re e Mo n th s E n de d (I n Th o u s an ds ) De ce mb e r 31 , Mar ch 31 , J u n e 30 , Se p t e mb e r 30 , De ce mb e r 31 , 2 0 2 0 2 0 2 12 0 2 12 0 2 12 0 2 1 Adjusted EBITDA $108,114 $107,730 $117,322 $125,232 $131,656 Depreciation and Amortization 208,654 177,276 (174,775) (173,375) (167,955) Adjusted Operating Income (loss) (100,540) (69,546) (57,453) (48,143) (36,299) Investment Income (loss) 3,342 1,263 (62) 200 156 Interest Expense (47,943) (42,975) (41,741) (42,217) (44,570) Other, net 80,049 (7,346) (66,455) (22,758) (10,170) I n co m e (lo s s ) fro m co n tin u in g o pe ratio n s be fo re in co m e tax e s ($65 ,092) ($1 1 8,604) ($1 65 ,684) ($1 1 2,91 8) ($90,883) N A B O R S . C O M28 |