Transactions with Related Parties (Tables)

12 Months Ended

Dec. 31, 2017

Schedule of Transactions With Related Parties

ransactions with related parties were as follows:



	Year Ended December 31,
	2017		2016		2015
Revenues:
Sales of CO₂ to Sandhill Group, LLC ⁽¹⁾	$	2,820	$	3,097	$	3,259
Revenues from services and fees to Poseidon Oil Pipeline Company, LLC ⁽²⁾	12,357		10,844		4,536
Revenues from product sales to ANSAC	124,536		—		—

Expenses:
Amounts paid to our CEO in connection with the use of his aircraft	$	660	$	660	$	690
Charges for products purchased from Poseidon Oil Pipeline Company, LLC ⁽²⁾	986		1,007		464
Charges for services from ANSAC	2,242		—		—


(1)	We own a 50% interest in Sandhill Group, LLC.


(2)	We own a 64% interest in Poseidon Oil Pipeline Company, LLC.

As of December 31, 2017, our receivables from and payables to ANSAC were:



	December 31
	2017
Receivables:
ANSAC	$	74,490
Payables:
ANSAC	$	1,223

ANSAC is considered a variable interest entity (VIE) as we do experience certain risks and rewards from our relationship with them. As we do not exercise control over ANSAC and are not considered its primary beneficiary, we do not consolidate ANSAC.