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CONSOLIDATED STATEMENTS OF INCOME (LOSS) (USD $) In Thousands, except Per Share data, unless otherwise specified | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2013 | Jun. 30, 2012 | Jun. 30, 2013 | Jun. 30, 2012
Revenues and other income: |  |  |  |
Operating revenues | $ 1,491,586 | $ 1,737,114 | $ 3,070,231 | $ 3,627,540
Earnings (losses) from unconsolidated affiliates | 1,360 | (134,317) | 4,255 | (202,986)
Investment income (loss) | 14,821 | 5,368 | 94,242 | 25,620
Total revenues and other income | 1,507,767 | 1,608,165 | 3,168,728 | 3,450,174
Costs and other deductions: |  |  |  |
Direct costs | 999,192 | 1,123,256 | 2,025,234 | 2,308,072
General and administrative expenses | 132,612 | 133,612 | 265,157 | 269,958
Depreciation and amortization | 270,199 | 261,016 | 543,564 | 508,637
Interest expense | 60,271 | 63,459 | 120,279 | 126,113
Losses (gains) on sales and disposals of long-lived assets and other expense (income), net | 9,312 | 160,917 | 69,119 | 159,077
Total costs and other deductions | 1,471,586 | 1,742,260 | 3,023,353 | 3,371,857
Income (loss) from continuing operations before income taxes | 36,181 | (134,095) | 145,375 | 78,317
Income tax expense (benefit): |  |  |  |
Current | 11,381 | 34,698 | 30,210 | 60,704
Deferred | (5,209) | (70,890) | (12,766) | (27,852)
Total income tax expense (benefit) | 6,172 | (36,192) | 17,444 | 32,852
Subsidiary preferred stock dividend | 750 | 750 | 1,500 | 1,500
Income (loss) from continuing operations, net of tax | 29,259 | (98,653) | 126,431 | 43,965
Income (loss) from discontinued operations, net of tax | (28,004) | 24,690 | (25,958) | 15,895
Net income (loss) | 1,255 | (73,963) | 100,473 | 59,860
Less: Net (income) loss attributable to noncontrolling interest | (5,616) | 1,174 | (5,713) | 1,441
Net income (loss) attributable to Nabors | $ (4,361) | $ (72,789) | $ 94,760 | $ 61,301
Earnings (losses) per share: |  |  |  |
Basic from continuing operations (in dollars per share) | $ 0.08 | $ (0.34) | $ 0.41 | $ 0.16
Basic from discontinued operations (in dollars per share) | $ (0.09) | $ 0.09 | $ (0.09) | $ 0.05
Total Basic (in dollars per share) | $ (0.01) | $ (0.25) | $ 0.32 | $ 0.21
Diluted from continuing operations (in dollars per share) | $ 0.08 | $ (0.34) | $ 0.41 | $ 0.16
Diluted from discontinued operations (in dollars per share) | $ (0.09) | $ 0.09 | $ (0.09) | $ 0.05
Total Diluted (in dollars per share) | $ (0.01) | $ (0.25) | $ 0.32 | $ 0.21
Weighted-average number of common shares outstanding: |  |  |  |
Basic (in shares) | 294,747 | 290,311 | 293,217 | 289,550
Diluted (in shares) | 297,119 | 290,311 | 295,644 | 292,185

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- Definition Number of [basic] shares or units, after adjustment for contingently issuable shares or units and other shares or units not deemed outstanding, determined by relating the portion of time within a reporting period that common shares or units have been outstanding to the total time in that period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Emerging Issues Task Force (EITF) -Number 07-4 -Paragraph 4 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 128 -Paragraph 171 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 128 -Paragraph 40 -Subparagraph a -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 45 -Paragraph 10 -URI http://asc.fasb.org/extlink&oid=7655603&loc=d3e1448-109256 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 128 -Paragraph 8 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 7: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Weighted-Average Number of Common Shares Outstanding -URI http://asc.fasb.org/extlink&oid=6528421 + Details
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