The ships became larger during the 1970s, and the list was extended, where the tons are long tons:*10,000–: General Purpose tanker*25,000–: Medium Range tanker*55,000–: Long Range 1 (LR1)*80,000–: Long Range 2 (LR2)*160,000–: Very Large Crude Carrier (VLCC)*320,000–: Ultra Large Crude Carrier (ULCC)Very Large Crude Carrier Size Range There are more ships smaller in size.
==Klasifikacija tankerjev==Leta 1954 je Shell Oil uveljavil (AFRA) sistem klasifikacije za tankerje različne velikosti.