Leon Gorman, 78, steps down after a long tenure of success and is replaced by his nephew Shawn, 47.
The deal is CEO Marissa Mayer’s boldest move since she left Google and one of Yahoo’s priciest.
Prices are now 21 cents per gallon lower than at the same time last year and a little more than a penny higher than a month ago.
Officials say the Wyman Station owner has been unresponsive; taxpayers can expect a hike in rates.
The Maine-based chain, which started in Brunswick in 1989, now has 11 stores and is growing in Waterville.