Frontline Ltd. is the world's largest oil tanker shipping company, based in Hamilton, Bermuda and controlled by John Fredriksen. Its primary business is transporting crude oil.
As of 2008 the company had one of the world's largest tanker fleets consisting of VLCC, Suezmax and Suezmax OBO carriers.
Frontline has its origin in Frontline AB, which was founded in 1985, and which was listed on the Stockholm Stock Exchange from 1989 to 1997. Hemen Holding (a company indirectly controlled by the largest shareholder and chairman of Frontline, John Fredriksen) became the largest shareholder of Frontline in 1996.
Under Fredriksen the company absorbed several other companies: London and Overseas Freighters (1997), ICB (1999), and Golden Ocean (2000). These takeovers made Frontline the world's largest tanker company, a position it has retained to the present day.
According to en.wikipedia