Majors
While the deregulation of the oil industry in 1988 opened the way for new players to enter the market,
after more than ten years the four major oil companies - Caltex, Mobil, Shell and BP - still supply around
95% of the petrol and diesel sold in New Zealand. These four companies each has a shareholding in the Marsden
Point Refinery, as well as having joint ownership of Wiri Oil Services Limited (which operates the Wiri
Storage Terminal) and the Marsden Point Tanker Loading Facility.
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Major oil companies
More Recent Entrants
Around the late 1990s, there were two smaller independent operators supplying petrol and diesel in
New Zealand - Gull and
Challenge
[external website],
but Challenge was sold to Caltex, so there is now effectively only one.
Gull Petroleum
[external website] has a storage terminal at Mt
Maunganui and retail outlets in the northern half of the North Island. It sources its entire product directly
from overseas, rather than through the Marsden Point Refinery, and has around 2% of the market.

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