Mullen Group Customer Service Phone Numbers Customer Service:+1 403-995-5200 Mullen Group Credit card support Numbers: 00 1 416-974-7780 Transportation:  (488999)   Mullen Group Headquarters Info, Email, Phone number, Website and live chat Information Mullen Group Ltd. provides transportation and oilfield services in Canada and the United States. It operates in two segments, Trucking/Logistics and Oilfield