Hindustan Petroleum Corporation Limited (HPCL) is an India-based integrated oil refining and marketing company. The Company operates in two business segments: Downstream, and exploration and production of hydrocarbons. The Downstream segment is engaged in refining and marketing of petroleum products. The Company has two refineries located at Mumbai and Vishakapatnam. HPCL holds an equity stake of 16.95% in Mangalore Refinery & Petrochemicals Ltd. CREDA-HPCL Biofuel Limited is a subsidiary of HPCL.