Royal Dutch Shell is an integrated oil and gas company that explores for, produces, and refines oil around the world. In 2018, it produced 1.9 million barrels of liquids and 11.2 billion cubic feet of natural gas per day. At year-end 2018, reserves stood at 11.4 billion barrels of oil equivalent (including 1.3 billion for equity companies), 37% of which consisted of liquids. Its production and reserves are in Europe, Asia, Oceania, Africa, and North and South America. The company operates refineries with capacity of 2.9 mmbd located in the Americas, Asia, Africa, and Europe and sells 18 mtpa of chemicals. Its largest chemical plants, often integrated with its local refineries, are in Central Europe, China, Singapore, and North America.