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NET INCOME PER UNIT | 3 Months Ended
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Mar. 31, 2016
Earnings Per Share [Abstract] |
NET INCOME PER UNIT | NET INCOME PER UNIT Basic and diluted net income per unit is determined pursuant to the two-class method. Under this method, all earnings are allocated to our limited partner unitholders and participating securities based on their respective rights to receive distributions earned during the period. Participating securities include our general partner interest, including incentive distribution rights, and restricted units awarded under our Amended 2000 LTIP. Basic net income per unit is computed by dividing net income attributable to our limited partner unitholders by the weighted-average number of limited partner units outstanding during the period. Diluted net income per unit is computed by dividing net income attributable to our limited partner unitholders by the sum of (i) the weighted-average number of limited partner units outstanding during the period and (ii) the effect of dilutive potential limited partner units outstanding during the period. Dilutive potential limited partner units include contingently issuable performance units under awarded our Amended 2000 LTIP. The following table details the calculation of earnings per unit:
| Three Months Ended March 31,
| 2016 |  | 2015
| (Thousands of Dollars, Except Unit and Per Unit Data)
Net income attributable to NuStar Energy L.P. | $ | 57,401 |  |  | $ | 127,899 |
Less: Distributions to general partner (including incentive distribution rights) | 12,766 |  |  | 12,766 |
Less: DERs to restricted units | 713 |  |  | — |
Less: Distributions to limited partner | 85,285 |  |  | 85,285 |
Distributions (in excess of) less than earnings | $ | (41,363 | ) |  | $ | 29,848 |
Net income attributable to limited parter units: |  |  |
Distributions to limited partner | $ | 85,285 |  |  | $ | 85,285 |
Allocation of distributions (in excess of) less than earnings | (40,535 | ) |  | 29,251 |
Total | $ | 44,750 |  |  | $ | 114,536 |
Basic weighted-average limited partner units outstanding | 77,886,078 |  |  | 77,886,078 |
Diluted units outstanding: |  |  |
Basic weighted-average limited partner units outstanding | 77,886,078 |  |  | 77,886,078 |
Effect of dilutive participating securities | 70,746 |  |  | — |
Diluted weighted-average limited partner units outstanding | 77,956,824 |  |  | 77,886,078 |
Basic and diluted net income per unit applicable to limited partners | $ | 0.57 |  |  | $ | 1.47 |

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