Equity Method Investments (Tables)

3 Months Ended

Mar. 31, 2021

Equity Method Investments and Joint Ventures [Abstract]

Schedule of Equity Investments in Affiliates

Equity method investments comprise the following as of the dates indicated:

	March 31, 2021			December 31, 2020
	Ownership	Investment Amount		Ownership	Investment Amount
Mattox	79.0%	$	161	79.0%	$	163
Amberjack – Series A / Series B	75.0% / 50.0%	376		75.0% / 50.0%	382
Mars	71.5%	153		71.5%	152
Bengal	50.0%	89		50.0%	88
Permian Basin	50.0%	82		50.0%	83
LOCAP	41.48%	14		41.48%	12
Explorer	38.59%	70		38.59%	73
Poseidon	36.0%	—		36.0%	—
Colonial	16.125%	31		16.125%	29
Proteus	10.0%	14		10.0%	14
Endymion	10.0%	17		10.0%	17
		$	1,007		$	1,013

Schedule of Equity Investments in Affiliates Balance Affected

Earnings from our equity method investments were as follows during the periods indicated:

	Three Months Ended March 31,
	2021		2020
Mattox (1)	$	15	$	—
Amberjack	29		29
Mars	29		31
Bengal	3		5
Explorer	7		14
Colonial	15		27
Other (2)	4		6
	$	102	$	112

(1) We acquired an interest in Mattox in April 2020. The acquisition of this interest has been accounted for prospectively.

(2) Included in Other is the activity associated with our investments in Permian Basin, LOCAP, Proteus and Endymion.

Equity Method Investments

The following tables present aggregated selected unaudited income statement data for our equity method investments on a 100% basis. However, during periods in which an acquisition occurs, the selected unaudited income statement data reflects activity from the date of the acquisition.

	Three Months Ended March 31, 2021
	Total revenues		Total operating expenses		Operating income		Net income
Statements of Income
Mattox	$	22	$	3	$	19	$	19
Amberjack	72		17		55		55
Mars	63		22		41		41
Bengal	13		7		6		6
Explorer	69		42		27		21
Colonial	290		133		157		97
Poseidon	42		10		32		31
Other (1)	56		32		24		23

(1) Included in Other is the activity associated with our investments in Permian Basin, LOCAP, Proteus and Endymion.

	Three Months Ended March 31, 2020
	Total revenues		Total operating expenses		Operating income		Net income
Statements of Income
Amberjack	$	76	$	19	$	57	$	57
Mars	72		28		44		44
Bengal	17		7		10		10
Explorer	96		47		49		38
Colonial	401		163		238		169
Poseidon	33		9		24		22
Other (1)	57		27		30		25

(1) Included in Other is the activity associated with our investments in Permian Basin, LOCAP, Proteus and Endymion.