MagazinesBizTimes MilwaukeeIndustriesEnergy & Environment $4 By the Numbers By BizTimes Staff - Feb 20, 2012 12:00 am Share EmailFacebookTwitterLinkedin Oil industry analysts predict the price for a gallon of regular unleaded gasoline will surpass the $4 mark by Memorial Day. 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.