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UNAUDITED CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) $ in Thousands | 6 Months Ended | 12 Months Ended
--- | --- | ---
Jun. 30, 2019 | Jun. 30, 2018 | Dec. 31, 2018
Operating revenues |  |  |
Direct financing lease interest income - related parties | $ 1,932 | $ 5,986 | $ 9,623
Direct financing and sales-type lease interest income - other | 26,484 | 13,905 | 30,055
Finance lease service revenues - related parties | 4,887 | 13,428 | 22,095
Profit sharing revenues - related parties | 1,547 | 0 | 1,779
Time charter revenues - related parties | 25,752 | 26,498 | 53,258
Time charter revenues - other | 143,225 | 100,499 | 239,468
Bareboat charter revenues - other | 12,494 | 18,850 | 36,222
Voyage charter revenues - other | 9,428 | 9,381 | 24,339
Other operating income | 1,696 | 597 | 1,873
Total operating revenues | 227,445 | 189,144 | 418,712
Gain/(loss) on sale of assets and termination of charters, net | 0 | (1,623) | (2,578)
Gain (Loss) on Disposition of Stock in Subsidiary | 0 | 0 | 7,613
Operating expenses |  |  |
Vessel operating expenses - related parties | 16,453 | 24,847 | 45,266
Vessel operating expenses - other | 49,059 | 36,711 | 83,282
Depreciation | 58,648 | 46,444 | 104,079
Vessel impairment charge | 0 | 21,779 | 64,338
Administrative expenses - related parties | 894 | 495 | 1,072
Administrative expenses - other | 5,011 | 4,662 | 8,095
Total operating expenses | 130,065 | 134,938 | 306,132
Net operating income | 97,380 | 52,583 | 117,615
Non-operating income / (expense) |  |  |
Interest income - related parties, long term loans to associated companies | 7,064 | 7,064 | 14,128
Interest income – related parties, other | 850 | 0 | 880
Interest income - other | 2,376 | 1,112 | 2,943
Interest expense - related parties | 0 | (1,422) | (6,378)
Interest expense - other | (72,165) | (47,383) | (107,508)
(Loss)/gain on repurchase of bonds | 1,802 | 0 | 1,146
Gain (Loss) on Sale of Assets and Asset Impairment Charges | (8,225) | 0 | 0
Equity Securities, FV-NI, Unrealized Gain (Loss) | 27,323 | 15,304 | 12,277
Dividend income from related parties | 2,164 | 0 | 0
Debt and Equity Securities, Realized Gain (Loss) | 0 | 0 | 13,477
Other financial items, net | (5,847) | 5,712 | 10,407
Net income before equity in earnings of associated companies | 52,722 | 32,970 | 58,987
Equity in earnings of associated companies | 8,991 | 7,451 | 14,635
Net income | $ 61,713 | $ 40,421 | $ 73,622
Per share information: |  |  |
Basic earnings per share | $ 0.57 | $ 0.39 | $ 0.70
Diluted earnings per share | $ 0.56 | $ 0.39 | $ 0.69

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