In Los Angeles, prices have topped $4 a gallon. This photo was take April 11, 2011. (AP Photo/Reed Saxon)

WASHINGTON - Gas prices across the region keep soaring. For regular unleaded, prices shot up another 9 cents a gallon in the last week, according to WTOP's latest Price at the Pump survey.

That increase comes after an 10-cent hike a week earlier.

The average for a gallon of unleaded regular is now $3.91 a gallon. Mid-grade is up 7 cents to $4.09 a gallon. Premium rose 10 cents to $4.22 a gallon. Diesel is up 8 cents to $4.16 a gallon.

On Feb. 24, 2011, a gallon of regular unleaded was $3.22 a gallon.

If you see a great gas price, post it in this story, tweet it (#WTOPgas) or post it on WTOP's Facebook page.

Also, if you are angry about rising gas prices, with whom are you angry and why?

(Copyright 2011 by WTOP. All Rights Reserved.)

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