USD Partners LP acquires, develops and operates energy-related logistics assets, including rail terminals and other midstream infrastructure. The Company's segments include Terminalling services and Fleet services. The Terminalling services segment consists of various operations, including Hardisty terminal, Casper terminal and Ethanol terminals. Its Hardisty terminal is an origination terminal where it loads various grades of Canadian crude oil onto railcars for transportation to end markets. The Casper terminal is a crude oil storage, blending and railcar loading terminal located in Casper, Wyoming. Its San Antonio and West Colton terminals are unit train-capable destination terminals that transload ethanol received by rail from producers onto trucks to meet local ethanol demand. The Company provides its customers with railcars and fleet services related to the transportation of liquid hydrocarbons and biofuels by rail under master fleet services agreements.