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Equity Method Investments (Tables)
 3 Months Ended
Mar. 31, 2022
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, 2022December 31, 2021
OwnershipInvestment AmountOwnershipInvestment Amount
Mattox79.0%$153 79.0%$156 
Amberjack – Series A / Series B
75.0% / 50.0%
349 
75.0% / 50.0%
359 
Mars71.5%150 71.5%150 
Bengal50.0%85 50.0%85 
Permian Basin50.0%79 50.0%80 
LOCAP41.48%16 41.48%15 
Explorer38.59%65 38.59%68 
Poseidon36.0%— 36.0%— 
Colonial16.125%53 16.125%32 
Proteus10.0%13 10.0%13 
Endymion10.0%16 10.0%16 
$979 $974 
Schedule of Equity Investments in Affiliates Balance Affected Table
Earnings from our equity method investments were as follows during the periods indicated:
Three Months Ended March 31,
20222021
Mattox$15 $15 
Amberjack28 29 
Mars29 29 
Bengal2 3 
Explorer10 7 
Colonial21 15 
Other (1)
3 4 
$108 $102 
(1) Included in Other is the activity associated with our investments in Permian Basin, LOCAP, Proteus and Endymion.
Summary of Balance Sheet and Income Statement Data for 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, 2022
Total revenues Total operating expenses Operating income Net income
Statements of Income
Mattox$22 $3 $19 $19 
Amberjack71 17 54 54 
Mars61 19 42 42 
Bengal10 4 6 3 
Explorer81 44 37 26 
Colonial383 176 207 132 
Poseidon31 9 22 21 
Other (1)
50 30 20 18 
(1) Included in Other is the activity associated with our investments in Permian Basin, LOCAP, Proteus and Endymion.
Three Months Ended March 31, 2021
Total revenues Total operating expenses Operating income Net income
Statements of Income
Mattox$22 $3 $19 $19 
Amberjack72 17 55 55 
Mars63 22 41 41 
Bengal13 7 6 6 
Explorer69 42 27 21 
Colonial290 133 157 97 
Poseidon42 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.