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UNAUDITED CONDENSED STATEMENTS OF CONSOLIDATED OPERATIONS (USD $) In Millions, except Per Share data, unless otherwise specified | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2013 | Sep. 30, 2012 | Sep. 30, 2013 | Sep. 30, 2012
Revenues: |  |  |  |
Third parties | $ 12,085.6 | $ 10,461.2 | $ 34,605.4 | $ 31,447.1
Related parties | 7.7 | 7.5 | 20.3 | 63.9
Total revenues (see Note 11) | 12,093.3 | 10,468.7 | 34,625.7 | 31,511.0
Operating costs and expenses: |  |  |  |
Third parties | 11,055.3 | 9,456.6 | 31,404.5 | 28,563.4
Related parties | 218.2 | 203.2 | 656.6 | 573.1
Total operating costs and expenses | 11,273.5 | 9,659.8 | 32,061.1 | 29,136.5
General and administrative costs: |  |  |  |
Third parties | 17.4 | 18.8 | 54.6 | 59.1
Related parties | 26.5 | 22.6 | 84.3 | 71.1
Total general and administrative costs | 43.9 | 41.4 | 138.9 | 130.2
Total costs and expenses | 11,317.4 | 9,701.2 | 32,200.0 | 29,266.7
Equity in income of unconsolidated affiliates | 44.0 | 21.0 | 126.1 | 42.2
Operating income | 819.9 | 788.5 | 2,551.8 | 2,286.5
Other income (expense): |  |  |  |
Interest expense | (208.3) | (199.7) | (604.4) | (572.8)
Interest income | 0.2 | 0.3 | 0.7 | 0.7
Other, net (see Note 2) | 0.4 | 1.2 | (0.5) | 72.7
Total other expense, net | (207.7) | (198.2) | (604.2) | (499.4)
Income before income taxes | 612.2 | 590.3 | 1,947.6 | 1,787.1
Benefit from (provision for) income taxes (see Note 2) | (19.4) | (2.4) | (46.2) | 23.5
Net income | 592.8 | 587.9 | 1,901.4 | 1,810.6
Net income attributable to noncontrolling interests (see Note 10) | (0.8) | (1.1) | (3.4) | (6.2)
Net income attributable to limited partners | $ 592.0 | $ 586.8 | $ 1,898.0 | $ 1,804.4
Earnings per unit: (see Note 13) |  |  |  |
Basic earnings per unit (in dollars per unit) | $ 0.66 | $ 0.68 | $ 2.13 | $ 2.10
Diluted earnings per unit (in dollars per unit) | $ 0.64 | $ 0.66 | $ 2.07 | $ 2.03

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