Table of Contents Index to Financial Statements The Company declared dividends on its mandatory convertible preferred stock in the first, second and third quarters of 2017 that were settled partially in common stock for a total of 10,040,306 shares as well as each quarter in 2016 that were settled in common stock for a total of 9,917,799 shares. In 2018, the Company repurchased 39,061,269 of its outstanding common stock for approximately $180 million at an average price of $4.63 per share.  The following table presents the computation of earnings per share for the years ended December 31, 2018, 2017 and 2016: The following table presents the common stock shares equivalent excluded from the calculation of diluted earnings per share for the years ended December 31, 2018, 2017 and 2016, as they would have had an antidilutive effect: The following table provides additional information concerning interest and income taxes paid as well as changes in noncash investing activities for the years ended December 31, 2018, 2017 and 2016: The Company accounts for stock-based compensation transactions using a fair value method and recognizes an amount equal to the fair value of the stock options and stock-based payment cost in either the consolidated statement of operations or capitalizes the cost into natural gas and oil properties or gathering systems included in property and equipment. Costs are capitalized when they are directly related to the acquisition, exploration and development activities of the Company’s natural gas and oil properties. See  Note 13  for a discussion of the Company’s stock-based compensation. 86 Stock-Based Compensation Supplemental Disclosures of Cash Flow Information For the years ended December 31, (in millions, except share/per share amounts) 2018 2017 2016 Net income (loss) $ 537  $ 1,046  $ (2,643) Mandatory convertible preferred stock dividend – 108  108  Participating securities – mandatory convertible preferred stock 2  123  – Net income (loss) attributable to common stock $ 535  $ 815  $ (2,751) Number of common shares: Weighted average outstanding 574,631,756  498,264,321  435,337,402  Issued upon assumed exercise of outstanding stock options – – – Effect of issuance of non-vested restricted common stock 698,103  1,061,056  – Effect of issuance of non-vested performance units 1,312,949  1,478,920  – Weighted average and potential dilutive outstanding 576,642,808  500,804,297  435,337,402  Earnings (loss) per common share: Basic $ 0.93  $ 1.64  $ (6.32) Diluted $ 0.93  $ 1.63  $ (6.32) For the years ended December 31, 2018 2017 2016 Unexercised stock options 5,909,082  116,717  3,692,697  Unvested share-based payment 3,692,794  5,361,849  959,233  Performance units 642,568  765,689  884,644  Mandatory convertible preferred stock 2,465,708  74,999,895  74,999,895  Total 12,710,152  81,244,150  80,536,469  For the years ended December 31, (in millions) 2018 2017 2016 Cash paid during the year for interest, net of amounts capitalized $ 135  $ 130  $ 75  Cash paid (received) during the year for income taxes 6  (5) (15) Increase (decrease) in noncash property additions (42) 25  55 