Shell PLC is an international energy and petrochemical company. It explores for and extracts crude oil, natural gas, and natural gas liquids; transports oil and gas; produces gas-to-liquids fuels and other products; and operates upstream and midstream infrastructure necessary to deliver gas to market. It markets and trades natural gas, liquefied natural gas (LNG), crude oil, electricity, carbon-emission rights, and LNG as a fuel for heavy-duty vehicles and marine vessels. Shell was founded in 1907 and is headquartered in London, UK.