All major public sector oil companies in India

• Indian Oil Corporation Limited (IOCL)
  
  
• Indian Oil Mauritius Limited (IOML)
  
  
• Indian Oil Corporation Limited – Assam Oil Division
  
  
• Bharat Petroleum Corporation Limited (BPCL)
  
  
• Hindustan Petroleum Corporation Limited (HPCL)
  
  
• IBP Company Limited
  
  
• Mangalore Refineries Private Limited (MRPL)
  
  
• Reliance Industries Limited (RIL)
  
  
• Essar Oil Limited (EOL)
  
  
• Shell India Private Limited