I can't say I'm surprised, but with a captive market you can pretty much do what you want.
I heard a comment the other day that oil prices, per barrel, are as low as they've been in the last year, yet we're still at $0.90 a liter up here. Prices have not decreased since September. The media, who are always quick to crow about an increase in the price per barrel, have been remarkably silent about the price of late, simply because good news is not news. Without that media presence, the gas price won't go down (and I suspect wouldn't climb as high either). Ah well, hopefully we've all sold our stocks in August and will re-purchase them in March.