ADVERTISEMENTCheaper Crude Aids OMCs' Marketing MarginsCheaper Crude Aids OMCs' Marketing Margins NDTV Profit03 Mar 2020, 04:20 PM IST 03 Mar 2020, 03:17 PM IST03 Mar 2020, 04:20 PM ISTWhatsAppX (was Twitter)FacebookTelegramSaveCheaper Crude Aids OMCs' Marketing MarginsADVERTISEMENT