The field is co-owned by Esso, a subsidiary of US oil firm Exxon but operated by Shell.

BBC: Shell fights spill near North Sea oil platform

Thanks to last year's acquisition of Esso stations in Brazil from ExxonMobil, Cosan also makes money selling fuel at retail.

FORBES

Pembrokeshire Council has granted planning permission for the site at the former Esso refinery and a Petroplus plant at nearby Waterton.

BBC: NEWS | UK | Wales | Medieval works found at LNG site

Why should they come to this site when they have their own Exxon, Mobil, Esso, and other brand sites?

FORBES: ExxonMobil Has a Pathetic Website. Why?

For example, Cosan is into gasoline now because of Esso and Shell.

FORBES: US Brazil Biofuels Talk Helps Cosan, But India Could Change That

The company will still hold the exclusive right to deliver products and services under the Esso, Mobil, and General brands to distributors and dealers.

FORBES: Oil & Gas Paradigm Shift: Exxon Sells Japanese Downstream Assets For $3.9B

Whereas most big western firms such as Mobil and Esso are expert at finding crude oil, extracting it from the ground, turning it into petrol and then selling it, Japanese firms tend merely to refine the stuff and sell it.

ECONOMIST: Japan��s oil industry

It made a billion debt bet to acquire gasoline distributor Esso from Exxon Mobil a few years back and last year signed a joint venture with Shell to produce and distribute both ethanol and gasoline in Brazil and, indeed, around the world.

FORBES: US Brazil Biofuels Talk Helps Cosan, But India Could Change That