The price is primarily driven by Deadweight Tonnage (DWT), which defines the cargo capacity. Buyers must distinguish between VLCC (Very Large Crude Carriers), Suezmax, and Aframax classes. Key technical factors include the hull design (must be double-hulled), engine type (Tier III compliance for NOx emissions), and the presence of Ballast Water Management Systems (BWMS). Additionally, the grade of steel used and the coating quality of the cargo tanks (e.g., epoxy or phenolic resin) significantly impact the long-term maintenance costs and initial valuation.