Gas didn't climb as much as oil, why do you expect it to drop as much as oil?
What price plummet? The only thing that has plummeted is the price of crude. Meanwhile the refining margins have zoomed.
In the last year crude oil has dropped about 25% from the high while gasoline has dropped only 10%. The oil industry doesn’t help their public image much when this much information is available.
http://gasbuddy.com/gb_retail_price_chart.aspx
Gas didn't climb as much as oil, why do you expect it to drop as much as oil?