Coal and Oil Group | 6,863 followers on LinkedIn. The Coal and Oil Group comprising of associate firms Coal and Oil Company, Coastal Energy, Coastal Energen, PT Coal and Oil Indonesia and others is a US$ 1.7 Billion ‘Integrated Energy Company’. C&O has interests in Mining, Coal Trading, Shipping, Logistics and Power Generation. The C&O Group operates in all coal producing countries including Australia, South Africa, Indonesia, and China and has supply markets across the Indian subcontinent and south East Asia.