Sunoco Exits Oil Refining BusinessSunoco Inc., the regional oil and gas company, said that it would sell or shut down its remaining oil refineries this year, after being in the business for almost 120 years.SavePrintFrank Yu9/6/2011|Updated: 10/1/2015We had a problem loading this article. Please enable javascript or use a different browser. If the issue persists, please visit our help center.