CONSOLIDATED BALANCE SHEETS (Unaudited) (USD $) In Millions	Jun. 30, 2011	Dec. 31, 2010
Current assets
Cash and cash equivalents	$ 352.6	$ 129.1
Restricted deposits	0	50.0
Accounts, notes and interest receivable, net	899.1	951.8
Inventories	80.8	92.0
Gas in underground storage	68.9	2.2
Fair value of derivative contracts	39.8	24.0
Other current assets	49.3	37.6
Total current assets	1,490.5	1,286.7
Property, plant and equipment, net	14,823.6	14,603.9
Investments	3,907.6	3,886.0
Notes receivable	122.2	115.0
Goodwill	1,230.8	1,233.6
Other intangibles, net	306.0	302.2
Fair value of derivative contracts	292.3	260.7
Deferred charges and other assets	168.7	173.0
Total Assets	22,341.7	21,861.1
Current liabilities
Current portion of debt	991.3	1,262.4
Cash book overdrafts	19.2	32.5
Accounts payable	652.4	630.9
Accrued interest	243.9	239.6
Accrued taxes	74.7	44.7
Deferred revenues	96.1	96.6
Fair value of derivative contracts	209.1	281.5
Accrued other current liabilities	195.7	176.0
Total current liabilities	2,482.4	2,764.2
Long-term liabilities and deferred credits
Long-term debt Outstanding	10,415.6	10,277.4
Value of interest rate swaps	648.0	604.9
Total Long-term debt	11,063.6	10,882.3
Deferred income taxes	251.1	248.3
Fair value of derivative contracts	184.5	172.2
Other long-term liabilities and deferred credits	656.2	501.6
Total long-term liabilities and deferred credits	12,155.4	11,804.4
Total Liabilities	14,637.8	14,568.6
Partners' Capital
Common units	4,571.9	4,282.2
Class B units	52.5	63.1
i-units	2,832.4	2,807.5
General partner	256.2	244.3
Accumulated other comprehensive loss	(96.8)	(186.4)
Total Kinder Morgan Energy Partners, L.P. partners' capital	7,616.2	7,210.7
Noncontrolling interests	87.7	81.8
Total Partners' Capital	7,703.9	7,292.5
Total Liabilities and Partners' Capital	$ 22,341.7	$ 21,861.1