Yanchang Petroleum International Ltd. is an investment holding company, which engages in exploration, exploitation, and operation of oil and gas. It operates through the following segments: Supply and Procurement, and Exploration, Exploitation, and Operation segment. The Supply and Procurement segment involves storage, transportation, trading, and distribution of oil related products. The Exploration, Exploitation, and Operation segment includes oil and gas exploration, exploitation, sale, and operation. Yanchang Petroleum International was founded on January 5, 2001 and is headquartered in Hong Kong.