Statements Of Unaudited Condensed Consolidated Operations (USD $) In Millions, except Share data in Thousands, unless otherwise specified	3 Months Ended	9 Months Ended
Sep. 30, 2011	Sep. 30, 2010	Sep. 30, 2011	Sep. 30, 2010
REVENUES FROM PRODUCT SALES AND SERVICES
Product	$ 2,124.4	$ 1,287.2	$ 4,962.4	$ 3,074.8
Freight and venture partners' cost reimbursements	18.4	58.8	169.4	183.1
TOTAL REVENUES	2,142.8	1,346.0	5,131.8	3,257.9
COST OF GOODS SOLD AND OPERATING EXPENSES	(1,279.5)	(868.8)	(2,936.9)	(2,215.3)
SALES MARGIN	863.3	477.2	2,194.9	1,042.6
OTHER OPERATING INCOME (EXPENSE)
Selling, general and administrative expenses	(78.3)	(57.3)	(193.4)	(143.0)
Consolidated Thompson acquisition costs	(2.1)		(25.0)
Exploration costs	(26.6)	(10.3)	(55.4)	(19.4)
Miscellaneous - net	64.0	(19.2)	59.6	(8.5)
TOTAL OTHER OPERATING EXPENSE	(43.0)	(86.8)	(214.2)	(170.9)
OPERATING INCOME	820.3	390.4	1,980.7	871.7
OTHER INCOME (EXPENSE)
Gain on acquisition of controlling interests		2.1		40.7
Changes in fair value of foreign currency contracts, net	(6.2)	32.5	100.5	24.8
Interest income	2.7	3.3	7.6	8.4
Interest expense	(49.6)	(17.4)	(169.2)	(41.0)
Other non-operating income	(1.7)	(0.3)	(0.7)	6.9
TOTAL OTHER INCOME	(54.8)	20.2	(61.8)	39.8
INCOME FROM CONTINUING OPERATIONS BEFORE INCOME TAXES AND EQUITY INCOME FROM VENTURES	765.5	410.6	1,918.9	911.5
INCOME TAX EXPENSE	(17.8)	(116.1)	(312.3)	(282.5)
EQUITY INCOME FROM VENTURES	11.1	3.6	2.8	8.4
INCOME FROM CONTINUING OPERATIONS	758.8	298.1	1,609.4	637.4
LOSS FROM DISCONTINUED OPERATIONS, net of tax	(17.5)	(0.7)	(18.7)	(2.0)
NET INCOME	741.3	297.4	1,590.7	635.4
LESS: INCOME ATTRIBUTABLE TO NONCONTROLLING INTEREST	151.8		170.1
NET INCOME ATTRIBUTABLE TO CLIFFS SHAREHOLDERS	$ 589.5	$ 297.4	$ 1,420.6	$ 635.4
Continuing operations	$ 4.21	$ 2.20	$ 10.31	$ 4.71
Discontinued operations	$ (0.12)		$ (0.13)	$ (0.01)
EARNINGS PER COMMON SHARE ATTRIBUTABLE TO CLIFFS SHAREHOLDERS - BASIC	$ 4.09	$ 2.20	$ 10.18	$ 4.70
Discontinued operations	$ (0.12)	$ (0.01)	$ (0.13)	$ (0.01)
Continuing operations	$ 4.19	$ 2.19	$ 10.25	$ 4.68
EARNINGS PER COMMON SHARE ATTRIBUTABLE TO CLIFFS SHAREHOLDERS - DILUTED	$ 4.07	$ 2.18	$ 10.12	$ 4.67
AVERAGE NUMBER OF SHARES (IN THOUSANDS)
Basic	144,203	135,345	139,563	135,280
Diluted	144,989	136,213	140,321	136,098
CASH DIVIDENDS DECLARED PER SHARE	$ 0.28	$ 0.14	$ 0.56	$ 0.3675

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