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Equity and Distributions (Tables)
9 Months Ended
Sep. 30, 2015
Equity and Distributions [Abstract]  
Summary of Changes in Outstanding Units
Partners’ equity reflects the various classes of limited partner interests (i.e., common units, including restricted common units) that we have outstanding.  The following table summarizes changes in the number of our outstanding units since December 31, 2014:

 
Common
Units
(Unrestricted)
 
Restricted
Common
Units
 
Total
Common
Units
Number of units outstanding at December 31, 2014
1,933,095,027
 
4,229,790
 
1,937,324,817
Common units issued in connection with ATM  program
23,258,453
 
--
 
23,258,453
Common units issued in connection with DRIP and EUPP
8,251,315
 
--
 
8,251,315
Common units issued in connection with Step 2 of Oiltanking acquisition
36,827,517
 
--
 
36,827,517
Common units issued in connection with the vesting and exercise of unit options
333,002
 
--
 
333,002
Common units issued in connection with the vesting of phantom unit awards
613,689
 
--
 
613,689
Common units issued in connection with the vesting of restricted common unit awards
1,997,194
 
(1,997,194)
 
--
Forfeiture of restricted common unit awards
--
 
(157,750)
 
(157,750)
Acquisition and cancellation of treasury units in connection with the
vesting of equity-based awards
(680,496)
 
--
 
(680,496)
Other
15,054
 
--
 
15,054
Number of units outstanding at September 30, 2015
2,003,710,755
 
2,074,846
 
2,005,785,601

Components of Accumulated Other Comprehensive Income (Loss)
The following tables present the components of accumulated other comprehensive income (loss) as reported on our Unaudited Condensed Consolidated Balance Sheets at the dates indicated:

 
 
Gains (Losses) on
Cash Flow Hedges
  
  
 
 
 
Commodity
Derivative
Instruments
  
Interest Rate
Derivative
Instruments
  
Other
  
Total
 
Balance, December 31, 2014
 
$
69.9
  
$
(314.8
)
 
$
3.3
  
$
(241.6
)
Other comprehensive income before reclassifications
  
112.3
   
--
   
0.4
   
112.7
 
Amounts reclassified from accumulated other comprehensive loss (income)
  
(128.1
)
  
26.3
   
--
   
(101.8
)
Total other comprehensive income (loss)
  
(15.8
)
  
26.3
   
0.4
   
10.9
 
Balance, September 30, 2015
 
$
54.1
  
$
(288.5
)
 
$
3.7
  
$
(230.7
)

 
 
Gains (Losses) on
Cash Flow Hedges
  
  
 
 
 
Commodity
Derivative
Instruments
  
Interest Rate
Derivative
Instruments
  
Other
  
Total
 
Balance, December 31, 2013
 
$
(14.7
)
 
$
(347.2
)
 
$
2.9
  
$
(359.0
)
Other comprehensive income before reclassifications
  
16.1
   
--
   
--
   
16.1
 
Amounts reclassified from accumulated other comprehensive loss
  
12.9
   
23.9
   
--
   
36.8
 
Total other comprehensive income
  
29.0
   
23.9
   
--
   
52.9
 
Balance, September 30, 2014
 
$
14.3
  
$
(323.3
)
 
$
2.9
  
$
(306.1
)

Reclassification out of Accumulated Other Comprehensive Income (Loss)
The following table presents reclassifications out of accumulated other comprehensive income (loss) into net income during the periods indicated:
 
 
  
 
For the Three Months
Ended September 30,
  
For the Nine Months
Ended September 30,
 
 
Location 
2015
  
2014
  
2015
  
2014
 
Losses (gains) on cash flow hedges:
         
Interest rate derivatives
Interest expense
 
$
8.9
  
$
8.0
  
$
26.3
  
$
23.9
 
Commodity derivatives
Revenue
  
(46.8
)
  
(17.8
)
  
(128.6
)
  
14.5
 
Commodity derivatives
Operating costs and expenses
  
--
   
(0.2
)
  
0.5
   
(1.6
)
Total
 
 
$
(37.9
)
 
$
(10.0
)
 
$
(101.8
)
 
$
36.8
 

Declared Quarterly Cash Distribution Rates
The following table presents our declared quarterly cash distribution rates per common unit with respect to the quarter indicated:

 
 
Distribution Per
Common Unit
 
Record
Date
Payment
Date
2014:
       
1st Quarter
 
$
0.3550
 
4/30/2014
5/7/2014
2nd Quarter
 
$
0.3600
 
7/31/2014
8/7/2014
3rd Quarter
 
$
0.3650
 
10/31/2014
11/7/2014
2015:
    
 
    
1st Quarter
 
$
0.3750
 
4/30/2015
5/7/2015
2nd Quarter
 
$
0.3800
 
7/31/2015
8/7/2015
3rd Quarter
 
$
0.3850
 
10/30/2015
11/6/2015