Oil Marketing Companies (OMCs) are a concept and a group of institutions responsible for the downstream activities of the petroleum sector in India, primarily the distribution and sale of refined petroleum products. The three major public sector OMCs (PSU OMCs) are Indian Oil Corporation Ltd. (IOCL), Hindustan Petroleum Corporation Ltd. (HPCL), and Bharat Petroleum Corporation Ltd. (BPCL).
The origin of the PSU OMCs is rooted in the government's post-independence policy, which in 1956 placed oil as a "schedule A industry" to be developed by the state. This led to the nationalization of foreign companies, such as the takeover of Burmah-Shell Oil Storage and Distributing Company of India Limited on January 24, 1976, which was later renamed Bharat Petroleum Corporation Limited on August 1, 1977. IOCL itself was incorporated in 1964. OMCs solve the problem of ensuring widespread availability of fuel and cooking gas across the country.
OMCs function by managing the supply chain, operating retail outlets, and overseeing the pricing of regulated petroleum products. Their operations are under the administrative control of the Ministry of Petroleum and Natural Gas. The mechanism of their retail network is governed by the Marketing Discipline Guidelines (MDG), which are amended periodically, such as the MDG 2012 which saw an amendment on November 30, 2022. The MDG mandates adherence to statutory rules, quality/quantity control measures, and employee welfare standards, including minimum wages. OMCs are also connected to the Petroleum and Natural Gas Regulatory Board Act, 2006.
A recent change involves the government cutting the excise duty on petrol and diesel to offset OMC losses due to high global crude prices. Furthermore, OMCs have recently revised the mandatory gap for ordering LPG cylinders to 25 days for urban areas and 45 days for rural areas. Despite fluctuations in international crude prices, the retail prices of petrol, diesel, and domestic LPG have remained unchanged, insulating domestic consumers.