PETRONAS, Malaysia's integrated multinational petroleum corporation, has a presence in more than 30 countries around the world and over 30 years of experience in oil and gas operations. Its business activities range from upstream oil and gas exploration and production to downstream oil refining, the marketing and distribution of petroleum products, trading, gas processing and liquefaction, gas transmission pipeline operations, the marketing of liquefied natural gas, petrochemical manufacturing and marketing, shipping and property investment.