GREEN BAY- Gas prices plummet By BizTimes Staff - Sep 1, 2015 12:00 am Share EmailFacebookTwitterLinkedin The average price of a gallon of regular gasoline in Green Bay plummeted 22 cents in the last week to $2.58.Read more. Get the BizTimes email newsletterKeep up with the issues, companies and people that matter most to business in the Milwaukee metro area. Submitting the form please wait.... :) Thanks! You're signed up. There was an error, please try again later.