Organization and Basis of Presentation (Tables)

6 Months Ended

Jun. 30, 2020

Product Margin [Member]

Concentration Risk [Line Items]

Schedule of revenues and product margin as a percentage of the consolidated total

	Three Months Ended				Six Months Ended
	June 30,				June 30,
	2020		2019		2020		2019
Wholesale segment	43	%	20	%	27	%	20	%
Gasoline Distribution and Station Operations segment	56	%	77	%	71	%	77	%
Commercial segment	1	%	3	%	2	%	3	%
Total	100	%	100	%	100	%	100	%

Revenue, Product and Service Benchmark [Member]

Concentration Risk [Line Items]

Schedule of revenues and product margin as a percentage of the consolidated total

	Three Months Ended				Six Months Ended
	June 30,				June 30,
	2020		2019		2020		2019
Gasoline sales: gasoline and gasoline blendstocks (such as ethanol)	69	%	81	%	67	%	74	%
Distillates (home heating oil, diesel and kerosene), residual oil and propane sales	23	%	15	%	27	%	22	%
Crude oil sales and crude oil logistics revenue	1	%	1	%	1	%	1	%
Convenience store sales, rental income and sundries	7	%	3	%	5	%	3	%
Total	100	%	100	%	100	%	100	%