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Related Party Transactions (Tables)
 3 Months Ended
Mar. 31, 2018
Related Party Transactions [Abstract]  
Related Party Transactions
During the three months ended March 31, 2018 and 2017, we generated the following transactions with related parties (in thousands):
 
Three Months Ended March 31,
 
2018
 
2017
NGL Energy
 
 
 
   Revenues
$
6,180

 
$
22,204

   Purchases
$
236

 
$
15,584

 
 
 
 
White Cliffs
 
 
 
   Crude oil revenues
$
—

 
$
436

   Storage revenues
$
1,088

 
$
1,088

   Transportation fees
$
3,623

 
$
2,655

   Management fees
$
133

 
$
127

   Crude oil purchases
$
895

 
$
4,003