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Supplemental Cash Flow Information
 3 Months Ended
Mar. 31, 2016
Supplemental Cash Flow Information [Abstract]  
SUPPLEMENTAL CASH FLOW INFORMATION
SUPPLEMENTAL CASH FLOW INFORMATION
The following table summarizes the changes in the components of operating assets and liabilities shown on our condensed consolidated statements of cash flows (in thousands):

 
Three Months Ended March 31,
 
2016
 
2015
Decrease (increase) in restricted cash
$
32

 
$
342

Decrease (increase) in accounts receivable
40,535

 
56,863

Decrease (increase) in receivable from affiliates
2,237

 
1,663

Decrease (increase) in inventories
4,834

 
(25,857
)
Decrease (increase) in derivatives and margin deposits
3,914

 
(2,356
)
Decrease (increase) in other current assets
1,582

 
2,280

Decrease (increase) in other assets
12

 
(628
)
Increase (decrease) in accounts payable and accrued liabilities
(55,581
)
 
(51,435
)
Increase (decrease) in payable to affiliates
(1,626
)
 
2,728

Increase (decrease) in payables to pre-petition creditors
—

 
(2
)
Increase (decrease) in other noncurrent liabilities
(511
)
 
95

 
$
(4,572
)
 
$
(16,307
)
  
Other supplemental disclosures
We paid cash interest of $13.3 million and $15.0 million for the three months ended March 31, 2016 and 2015, respectively.
We paid cash for income taxes (net of refunds received) of $1.1 million and $3.3 million for the three months ended March 31, 2016 and 2015, respectively.
We incurred liabilities for construction work in process that had not been paid of $7.3 million and $16.6 million as of March 31, 2016 and 2015, respectively. Such amounts are not included in capital expenditures on the consolidated statements of cash flows.