Based on the Average Freight Rate Assessment (AFRA) scale, 

tankers can be classied by deadweight tonnage as follows: 

General Purpose (10,000–25,000 DWT), Medium Range (25,000–

45,000 DWT), Long Range 1 (45,000–80,000 DWT), Long Range 2 

(80,000–1-0,000 DWT), Very Large Crude Carrier (160,000–320,000 

DWT), and Ultra Large Crude Carrier (over 320,000 DWT). Other 

common types of oil tankers include Panamax (50,000–80,000 

DWT) usually classied as LR1 tanker, and Aframax (80,000–120,000 

DWT) and Suezmax (120,000–150,000 DWT) classied as LR2.

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