GP Petroleums Standalone December 2018 Net Sales at Rs 160.93 crore, down 7.55% Y-o-Yhttps://www.moneycontrol.com/news/business/earnings/gp-petroleums-standalone-december-2018-net-sales-at-rs-160-93-crore-down-7-55-y-o-y-3456541.html#GULFPETRO