Segment Reporting - Schedule of Identifiable Assets by Industry Segment (Details) - USD ($) $ in Thousands	Sep. 30, 2023	Dec. 31, 2022
Segment Reconciliation [Abstract]
Total assets	$ 410,595	$ 384,159
Operating segments | Crude oil marketing
Segment Reconciliation [Abstract]
Total assets	251,449	215,813
Operating segments | Trans-portation
Segment Reconciliation [Abstract]
Total assets	59,808	60,405
Operating segments | Pipeline and storage
Segment Reconciliation [Abstract]
Total assets	25,123	25,815
Operating segments | Logistics and repurposing
Segment Reconciliation [Abstract]
Total assets	44,264	45,307
Cash and other
Segment Reconciliation [Abstract]
Total assets	$ 29,951	$ 36,819