Is it just me or does everyone get angry when they see such headlines as todays "Major petrol companies raise prices" ?? 

They say: "BP spokesman Neil Green said the cost of refined petrol on the overseas markets has increased by 14 cents a litre in the past week."
However on this site also posted today i see different, although its light crude, but still.. its dropping, not rising!

Has anyone got any websites or personal analysis on the price of petrol over the last year? What im really after is a graph for price at pump vs barrel price (also taking into consideration the exchange rate i guess)..

My quick anaylsis: oil is sitting around $38 a barrel and is $1.71 at the pump with the $nz worth 0.51c usd. In july last year it was $147 a barrel and at around $2.15 at the pump (cant remember the exact cost and google is no help) with the $nz worth 0.76c usd.. Although im no good at maths i don't think that equation makes any sense at all, im sure petrol is over inflated here and these rises we are getting is unjustified..

I see there was a price freeze of petrol in 1982-1984... come on National and the comcom! im over ever increasing petrol costs, theres a recession in full swing, people have less money to spend on such things, but yet those greedy petrol companys can get away with near daily petrol increases! it goes down 3c one week then up again 6c the next week.. Dont get me started on two weeks ago, where it jumped 30c in 15 days or watever it was.

Anyways im more than likely over my head, hence why id love to see some graphs and anaylsis!

/rant

Would love to also hear some rants from other people!