Segment Reporting - Information Concerning Business Activities (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2023 USD ($) segment	Dec. 31, 2022 USD ($)	Dec. 31, 2021 USD ($)
Segment Reporting [Abstract]
Number of reportable segments | segment	4
Segment Reporting Information [Line Items]
Total revenues	$ 2,745,293	$ 3,366,917	$ 2,025,204
Segment operating earnings (losses)	2,399	5,771	16,159
Depreciation and amortization	27,863	22,707	19,797
Inventory adjustments	(800)	(2,000)	10,300
Crude oil marketing
Segment Reporting Information [Line Items]
Total revenues	2,585,355	3,232,193	1,930,042
Trans-portation
Segment Reporting Information [Line Items]
Total revenues	98,359	112,376	94,498
Pipeline and storage
Segment Reporting Information [Line Items]
Total revenues	323	0	664
Logistics and repurposing
Segment Reporting Information [Line Items]
Total revenues	61,256	22,348	0
Operating Segments
Segment Reporting Information [Line Items]
Total revenues	2,753,311	3,373,304	2,029,390
Segment operating earnings (losses)	17,331	23,489	29,860
Depreciation and amortization	27,863	22,707	19,797
Property and equipment additions	11,897	7,491	12,382
Operating Segments | Crude oil marketing
Segment Reporting Information [Line Items]
Total revenues	2,585,355	3,232,193	1,930,042
Segment operating earnings (losses)	17,029	15,874	25,243
Depreciation and amortization	8,042	7,724	6,673
Property and equipment additions	1,185	4,534	3,245
Operating Segments | Trans-portation
Segment Reporting Information [Line Items]
Total revenues	98,769	112,653	94,824
Segment operating earnings (losses)	5,091	10,891	7,104
Depreciation and amortization	12,277	11,512	12,099
Property and equipment additions	5,130	1,608	7,960
Operating Segments | Pipeline and storage
Segment Reporting Information [Line Items]
Total revenues	3,267	3,804	4,524
Segment operating earnings (losses)	(3,855)	(3,579)	(2,487)
Depreciation and amortization	1,071	1,077	1,025
Property and equipment additions	1,503	1,050	1,169
Operating Segments | Logistics and repurposing
Segment Reporting Information [Line Items]
Total revenues	65,920	24,654	0
Segment operating earnings (losses)	(934)	303	0
Depreciation and amortization	6,473	2,394	0
Property and equipment additions	3,967	282	0
Intersegment Eliminations
Segment Reporting Information [Line Items]
Total revenues	(8,018)	(6,387)	(4,186)
Intersegment Eliminations | Crude oil marketing
Segment Reporting Information [Line Items]
Total revenues	0	0	0
Intersegment Eliminations | Trans-portation
Segment Reporting Information [Line Items]
Total revenues	(410)	(277)	(326)
Intersegment Eliminations | Pipeline and storage
Segment Reporting Information [Line Items]
Total revenues	(2,944)	(3,804)	(3,860)
Intersegment Eliminations | Logistics and repurposing
Segment Reporting Information [Line Items]
Total revenues	(4,664)	(2,306)	0
Other
Segment Reporting Information [Line Items]
Total revenues	0	0	0
Segment operating earnings (losses)	0	0	0
Depreciation and amortization	0	0	0
Property and equipment additions	$ 112	$ 17	$ 8