Trouble is it's not the Oil companies. I think that the total tax now added
to the price of fuel is nearly 70%. So it's Gordon and Alastair, (get everywhere
these Scots, don't they

), that need attacking, not the Oil Companies.
The price of Crude Oil is decided by the Supply and Demand functions on the
world's spot markets, not the Oil companies, with also plenty of verbal 'rigging'
intervention by OPEC if the price drops down out of their favoured 'Band'.
Also, as Oil is priced and sold in US Dollars, the price must go up if the Dollar falls
so as to keep the 'value' of the price the same. At the moment the US Dollar
is in deep decline and shows no sign of stopping falling as yet.
Also, geo-political risks to Oil supply puts a 'Risk Premium' into the Spot Price.
At the moment, with Turkey about to invade Northern Iraq, it is estimated that
there is about a $20 'Risk Premium' built into the price.
The price of Oil is expected to exceed $100 a barrel within the next 12 months,
maybe even before the end of the year.
So you see, the only way you are going to get cheaper petrol is for the Tax
to be reduced. So in my opinion, the strategy in that e-mail is doomed to
failure.