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Unaudited Quarterly Financial Information | 12 Months Ended
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Dec. 31, 2020
Unaudited Quarterly Financial Information |
Unaudited Quarterly Financial Information | Note 18 Unaudited Quarterly Financial Information ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Year Ended December 31, 2020 |
​ | ​ | Quarter Ended |
​ |  | March 31, |  | June 30, |  | September 30, |  | December 31, |
​ | ​ | (In thousands, except per share amounts) |
Operating revenues | ​ | $ | 718,364 | ​ | $ | 533,931 | ​ | $ | 438,352 | ​ | $ | 443,396 | ​
Income (loss) from continuing operations, net of tax | ​ | $ | (374,269) | ​ | $ | (137,968) | ​ | $ | (146,682) | ​ | $ | (103,934) | ​
Income (loss) from discontinued operations, net of tax | ​ |  | (93) | ​ |  | 23 | ​ |  | 22 | ​ |  | 55 | ​
Net income (loss) | ​ | ​ | (374,362) | ​ | ​ | (137,945) | ​ | ​ | (146,660) | ​ | ​ | (103,879) | ​
Less: Net (income) loss attributable to noncontrolling interest | ​ |  | (17,465) | ​ |  | (10,167) | ​ |  | (10,805) | ​ |  | (4,358) | ​
Net income (loss) attributable to Nabors | ​ | $ | (391,827) | ​ | $ | (148,112) | ​ | $ | (157,465) | ​ | $ | (108,237) | ​
Less: Preferred stock dividend | ​ |  | (3,652) | ​ |  | (3,653) | ​ |  | (3,653) | ​ |  | (3,653) | ​
Net income (loss) attributable to Nabors common shareholders | ​ | $ | (395,479) | ​ | $ | (151,765) | ​ | $ | (161,118) | ​ | $ | (111,890) | ​
Earnings (losses) per share: (1) | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Basic from continuing operations | ​ | $ | (56.72) | ​ | $ | (22.13) | ​ | $ | (23.42) | ​ | $ | (16.46) | ​
Basic from discontinued operations | ​ |  | (0.01) | ​ |  | — | ​ |  | — | ​ |  | 0.01 | ​
Total Basic | ​ | $ | (56.73) | ​ | $ | (22.13) | ​ | $ | (23.42) | ​ | $ | (16.45) | ​
Diluted from continuing operations | ​ | $ | (56.72) | ​ | $ | (22.13) | ​ | $ | (23.42) | ​ | $ | (16.46) | ​
Diluted from discontinued operations | ​ |  | (0.01) | ​ |  | — | ​ |  | — | ​ |  | 0.01 | ​
Total Diluted | ​ | $ | (56.73) | ​ | $ | (22.13) | ​ | $ | (23.42) | ​ | $ | (16.45) | ​
​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Year Ended December 31, 2019 |
​ | ​ | Quarter Ended |
​ |  | March 31, |  | June 30, |  | September 30, |  | December 31, |
​ | ​ | (In thousands, except per share amounts) |
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ |
Operating revenues | ​ | $ | 799,640 | ​ | $ | 771,406 | ​ | $ | 758,076 | ​ | $ | 714,261 | ​
Income (loss) from continuing operations, net of tax | ​ | $ | (103,376) | ​ | $ | (192,801) | ​ | $ | (99,788) | ​ | $ | (284,533) | ​
Income (loss) from discontinued operations, net of tax | ​ |  | (157) | ​ |  | (34) | ​ |  | 157 | ​ |  | 22 | ​
Net income (loss) | ​ | ​ | (103,533) | ​ | ​ | (192,835) | ​ | ​ | (99,631) | ​ | ​ | (284,511) | ​
Less: Net (income) loss attributable to noncontrolling interest | ​ |  | (14,176) | ​ |  | (10,729) | ​ |  | (19,297) | ​ |  | 21,827 | ​
Net income (loss) attributable to Nabors | ​ | $ | (117,709) | ​ | $ | (203,564) | ​ | $ | (118,928) | ​ | $ | (262,684) | ​
Less: Preferred stock dividend | ​ |  | (4,313) | ​ |  | (4,312) | ​ |  | (4,310) | ​ |  | (4,309) | ​
Net income (loss) attributable to Nabors common shareholders | ​ | $ | (122,022) | ​ | $ | (207,876) | ​ | $ | (123,238) | ​ | $ | (266,993) | ​
Earnings (losses) per share: (1) | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Basic from continuing operations | ​ | $ | (18.11) | ​ | $ | (30.31) | ​ | $ | (18.27) | ​ | $ | (38.66) | ​
Basic from discontinued operations | ​ |  | (0.02) | ​ |  | — | ​ |  | 0.02 | ​ |  | — | ​
Total Basic | ​ | $ | (18.13) | ​ | $ | (30.31) | ​ | $ | (18.25) | ​ | $ | (38.66) | ​
Diluted from continuing operations | ​ | $ | (18.11) | ​ | $ | (30.31) | ​ | $ | (18.27) | ​ | $ | (38.66) | ​
Diluted from discontinued operations | ​ |  | (0.02) | ​ |  | — | ​ |  | 0.02 | ​ |  | — | ​
Total Diluted | ​ | $ | (18.13) | ​ | $ | (30.31) | ​ | $ | (18.25) | ​ | $ | (38.66) | ​
| (1) | Earnings per share is computed independently for each of the quarters presented. Therefore, the sum of the quarterly earnings per share may not equal the total computed for the year.
| (2) |

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- Definition The entire disclosure for quarterly financial data. Includes, but is not limited to, tabular presentation of financial information for fiscal quarters, effect of year-end adjustments, and an explanation of matters or transactions that affect comparability of the information. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 270 -URI http://asc.fasb.org/topic&trid=2126967 + Details
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