Annual report pursuant to Section 13 and 15(d)

Note 15 - Supplemental Cash Flow Information - Supplemental Cash Flow Information (Details)

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Note 15 - Supplemental Cash Flow Information - Supplemental Cash Flow Information (Details) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Supplemental cash items:      
Cash paid for income taxes $ 51 $ 138 $ 185
Cash refunds received for income taxes 51,833 11,126 11,906
Cash paid for share-based compensation (2) [1] 1,130 874
Cash received for interest income 7,720 2,385 315
Non-cash investing activities:      
Accruals of property and equipment 29,662 18,575 33,003
ARO - additions, dispositions and revisions, net 37,440 19,877 21,245
Debt Convert to Second Lien Term Loan, due May 2020 [Member]      
Supplemental cash items:      
Cash paid for interest [2] $ 66,720 $ 61,501 $ 65,873
[1] During 2019, only common shares were used to settle vested RSUs and Restricted Shares. During 2018 and 2017, cash was used to settle vested RSUs related to the retirement of executive officers and shares of common stock were used to settle all other vested RSUs and to settle Restricted Shares.
[2] During 2018 and 2017, cash paid for interest included amounts related to the debt instruments issued during 2016, which were accounted for under ASC 470-60 and recorded against the carrying value of the debt instruments on the Consolidated Balance Sheets and included in financing activities on the Consolidated Statements of Cash Flows. No interest was capitalized in the periods presented.