Petroleum, also known as crude oil, or simply oil, is a naturally occurring yellowish-black liquid mixture of mainly hydrocarbons, and is found in geological formations. The name petroleum covers both naturally occurring unprocessed crude oil and petroleum products that consist of refined crude oil. A fossil fuel, petroleum is formed when large quantities of dead organisms, mostly zooplankton and algae, are buried underneath sedimentary rock and subjected to both prolonged heat and pressure.
Gasoline or petrol is a transparent, slight yellowish petroleum-derived flammable liquid that is used primarily as a fuel in most spark-ignited internal combustion engines. It consists mostly of organic compounds obtained by the fractional distillation of petroleum, enhanced with a variety of additives. On average, U.S. refineries produce, from a barrel of crude oil, about 19 to 20 gallons of gasoline; 11 to 13 gallons of distillate fuel ; and 3 to 4 gallons of jet fuel. The product ratio depends on the processing in an oil refinery and the crude oil assay.
Propane is a three-carbon alkane with the molecular formula C3H8. It is a gas at standard temperature and pressure, but compressible to a transportable liquid. A by-product of natural gas processing and petroleum refining, it is commonly used as a fuel in domestic and industrial applications and in low-emissions public transportation. Discovered in 1857 by the French chemist Marcellin Berthelot, it became commercially available in the US by 1911. Propane is one of a group of liquefied petroleum gases. The others include butane, propylene, butadiene, butylene, isobutylene, and mixtures thereof. Propane has lower volumetric energy density, but higher gravimetric energy density and burns more cleanly than gasoline and coal.
A filling station is a facility that sells fuel and engine lubricants for motor vehicles. The most common fuels sold in the 2010s were gasoline and diesel fuel.
Diesel fuel, also called diesel oil or historically heavy oil, is any liquid fuel specifically designed for use in a diesel engine, a type of internal combustion engine in which fuel ignition takes place without a spark as a result of compression of the inlet air and then injection of fuel. Therefore, diesel fuel needs good compression ignition characteristics.
An oil refinery or petroleum refinery is an industrial process plant where petroleum is transformed and refined into useful products such as gasoline (petrol), diesel fuel, asphalt base, fuel oils, heating oil, kerosene, liquefied petroleum gas and petroleum naphtha. Petrochemical feedstock like ethylene and propylene can also be produced directly by cracking crude oil without the need of using refined products of crude oil such as naphtha. The crude oil feedstock has typically been processed by an oil production plant. There is usually an oil depot at or near an oil refinery for the storage of incoming crude oil feedstock as well as bulk liquid products. In 2020, the total capacity of global refineries for crude oil was about 101.2 million barrels per day.
Liquid fuels are combustible or energy-generating molecules that can be harnessed to create mechanical energy, usually producing kinetic energy; they also must take the shape of their container. It is the fumes of liquid fuels that are flammable instead of the fluid. Most liquid fuels in widespread use are derived from fossil fuels; however, there are several types, such as hydrogen fuel, ethanol, and biodiesel, which are also categorized as a liquid fuel. Many liquid fuels play a primary role in transportation and the economy.
The Colonial Pipeline is the largest pipeline system for refined oil products in the U.S. The pipeline – consisting of three tubes – is 5,500 miles (8,850 km) long and can carry 3 million barrels of fuel per day between Texas and New York.
The usage and pricing of gasoline results from factors such as crude oil prices, processing and distribution costs, local demand, the strength of local currencies, local taxation, and the availability of local sources of gasoline (supply). Since fuels are traded worldwide, the trade prices are similar. The price paid by consumers largely reflects national pricing policy. Most countries impose taxes on gasoline (petrol), which causes air pollution and climate change; whereas a few, such as Venezuela, subsidize the cost. Some country's taxes do not cover all the negative externalities, that is they do not make the polluter pay the full cost. Western countries have among the highest usage rates per person. The largest consumer is the United States.
The Cherry Point Refinery is an oil refinery near Bellingham, Washington, north of Seattle in the United States. Owned by BP, is the largest refinery in Washington state. It is located about seven miles (11 km) south of Blaine and eight miles (13 km) northwest of Ferndale, a few miles south of the Canada–US border, on the Strait of Georgia between Birch Bay and Lummi Bay.
USS Yahara (AOG-37) was a Mettawee-class gasoline tanker acquired by the U.S. Navy for the dangerous task of transporting gasoline to warships in the fleet, and to remote Navy stations.
USS Elokomin (AO-55) was a Cimarron-class fleet oiler acquired by the U.S. Navy during World War II. She served her country primarily in the Atlantic Ocean, Mediterranean Sea, and the North Atlantic Ocean Theatre of Operations, and provided petroleum products where needed to combat ships.
USS Rio Grande (AOG-3) was aPatapsco-class gasoline tanker in service with the United States Navy from 1943–1946 and 1950–1956. She was scrapped in 1972.
USS Nespelen (AOG-55) was a Patapsco-class gasoline tanker in the service of the United States Navy.
The United States federal excise tax on gasoline is 18.4 cents per gallon and 24.4 cents per gallon for diesel fuel. Proceeds from the tax partly support the Highway Trust Fund. The federal tax was last raised October 1, 1993 and is not indexed to inflation, which increased 93% from 1993 until 2022. On average, as of April 2019, state and local taxes and fees add 34.24 cents to gasoline and 35.89 cents to diesel, for a total US volume-weighted average fuel tax of 52.64 cents per gallon for gas and 60.29 cents per gallon for diesel.
Petroleum has been a major industry in the United States since shortly after the oil discovery in the Oil Creek area of Titusville, Pennsylvania, in 1859. The industry includes exploration, production, processing (refining), transportation, and marketing of natural gas and petroleum products. In 2018, the U.S. became the world's largest crude oil producer, producing 15% of global crude oil, surpassing Russia and Saudi Arabia. The leading oil-producing area in the United States in 2019 was Texas, followed by the offshore federal zone of the Gulf of Mexico, North Dakota and New Mexico. In 2020, the top five U.S. oil-producing states were Texas (43%), North Dakota (10.4%), New Mexico (9.2%), Oklahoma (4.1%), and Colorado (4.0%).
The New Energy Reform Act of 2008 was offered by a bipartisan group of Senators in the 110th United States Congress in response to the energy policy gridlock between Republicans and Democrats. The proposal was offered as an alternative to an energy bill sponsored by House Speaker Nancy Pelosi.
Rationing is the controlled distribution of scarce resources, goods, or services, or an artificial restriction of demand. Rationing controls the size of the ration, which is one person's allotted portion of the resources being distributed on a particular day or at a particular time.
