CHEMISTRY ISU: REFINEMENT OF CRUDE OIL My ISU will focus on Petroleum, a complex mixture of hydrocarbons that occurs in the Earth in liquid, gaseous, or solid forms. The term is usually restricted to the liquid form, commonly called crude oil, but as a technical term it also includes natural gas and the viscous or solid form known as bitumen. In its liquid and gaseous states, it is also known as Oil, or Crude Oil. Italicized are segments from my ISU or introductions to the planned topics. In my ISU, I plan to dedicate potions of my paper to the following aspects of petroleum.•Petroleum’s many uses. Petroleum today is the source from which we derive many items. The Motor vehicle’s development in the 1930s gave petroleum a new and swiftly expanding role as the primary source of gasoline; oil and then natural gas replaced coal as the primary fuel for industrial and domestic heating. Petrochemicals derived from petroleum became the source of such chemical products as solvents, paints, plastics, synthetic rubber and fibres, soaps and cleansing agents, waxes and jellies, explosives, and fertilizers. Petroleum fuels also generate a large portion of the world's electrical-power supply.•I will also discuss the exploration for crude oil, and the impending crisis if it continues to be used up at the current rates of consumption. ( is expected to exhaust the world’s supply by the mid-21st century) and possible energy alternatives.•Petroleum’s origin and formation:Petroleum is derived from aquatic plants and animals that died hundreds of millions of years ago. Their remains mixed with mud and sand in layered deposits that, over the millennia, were geologically transformed into sedimentary rock. Gradually the organic matter decomposed into petroleum, which moved from the original source beds to more porous and permeable rocks, such as sandstones and siltstones, where it finally becomes entrapped.•Typ...