Transactions with Related Parties (Tables)

6 Months Ended

Jun. 30, 2019

The transactions with related parties were as follows:



	Three Months Ended June 30,				Six Months Ended June 30,
	2019		2018		2019		2018
Revenues:
Sales of CO₂ to Sandhill Group, LLC ⁽¹⁾	$	—	$	690	$	—	$	1,233
Revenues from services and fees to Poseidon⁽²⁾	3,236		3,039		6,401		6,239
Revenues from product sales to ANSAC	81,784		93,938		172,463		184,734
Costs and expenses:
Amounts paid to our CEO in connection with the use of his aircraft	$	165	$	165	$	330	$	330
Charges for services from Poseidon⁽²⁾	255		250		502		499
Charges for services from ANSAC	1,279		1,256		2,336		3,034


(1)	We owned a 50% interest in Sandhill Group, LLC which was sold during the third quarter of 2018.

(2)

We own 64% interest in Poseidon

Receivables from and payables to ANSAC as of June 30, 2019 and December 31, 2018 are as follows: