
The price of oil per barrel is a crucial indicator of the global economic health. With emerging industrial markets like China, India, and Latin America driving up demand, the limited supply of crude oil means that prices are continuously rising. This trend is further exacerbated by the lack of development in the crude oil industry due to insufficient investment capital. As a result, the price of oil has a profound impact on international economic development, given its status as the most important commodity and energy source worldwide.
How much is fuel per barrel?
| Characteristics | Values |
|---|---|
| Volume of a barrel of oil | 42 US gallons, approximately 159 litres, or 35 imperial gallons |
| Volume of a US dry barrel | 7,056 cubic inches (115.6 litres; 3.3 US bushels) |
| Volume of a US barrel for cranberries | 5,826 cubic inches (95.5 litres; 2.7 US bushels) |
| Volume of a UK beer barrel | 36.37 gallons (165.3 litres) |
| Volume of a US beer barrel | 31 gallons (117.3 litres) |
| Percentage of a 45-gallon barrel of refined fuels that is gasoline | 45% |
| Percentage of a 45-gallon barrel of refined fuels that is ultra-low-sulfur diesel (ULSD) | 25% |
| Combined volume of ULSD and heating oil in a refined barrel | 12 gallons |
| Volume of kerosene in a refined barrel | 4 gallons |
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What You'll Learn

A barrel is a unit of volume
The barrel as a unit of measure has had various meanings throughout history, and in different parts of the world. In medieval times, the term originated from the French 'baril', and was used throughout Europe to refer to a volume of anywhere between 100 and 1,000 litres. Today, the term is still used in a variety of contexts, with dry barrels, fluid barrels (such as beer barrels), oil barrels, and more. The volume of a barrel can vary depending on the context, with volumes in common use ranging from 100 to 200 litres.
In the context of the oil industry, a 42-gallon crude oil barrel contains approximately 45 gallons of salable refined crude oil products. These include ultra-low sulfur diesel (ULSD), kerosene/jet fuel, hydrocarbon gas liquids, and residual fuel. Gasoline, which is used as fuel for standard passenger vehicles, accounts for 20 gallons, or 45%, of a 45-gallon barrel of refined fuels. Other products derived from a barrel of crude oil include kerosene, which is used as fuel in heaters, lamps, cooking stoves, and water heaters, and ultra-low-sulfur diesel (ULSD), which is used in agriculture equipment, heavy-duty transportation, home heating, and refrigerated equipment.
The price dynamics of petroleum products can vary based on geography, market fundamentals, industry tendencies, and the complexities of the refining process. For instance, regional price dynamics can create significant commodity price variances, and the key difference in selling price is often taxation. The relationship between the oil and gas industries is highly intertwined, and changes in supply and demand for one crude oil refined product can ultimately result in price changes for other products.
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Oil prices are measured in barrels
Oil prices are typically measured in barrels, with one barrel of oil defined as 42 US gallons or approximately 159 litres. The price of a barrel of oil is dependent on its grade and location. For instance, heavier, sour crude oils without access to tidewater are less expensive than lighter, sweeter oils. The price of oil is determined by global supply and demand and can fluctuate significantly. For example, the price of a barrel of oil dropped to $30 in February 2016 due to an oil glut, and in 2020, storage capacity was again almost at its limit.
In the international oil market, prices are commonly quoted in United States dollars per barrel. Oil companies may also use the terms kilobarrels (kb), megabarrels (mb), and gigabarrels (gb) to refer to one thousand, one million, and one billion barrels, respectively. The symbol "bbl" is also commonly used to refer to a single barrel.
A standard barrel of oil, according to the American Petroleum Institute (API), refers to the volume of oil at specific temperature and pressure conditions: 60 °F (15.6 °C) and 14.696 psi (1,013.25 hPa). At different pressures and temperatures, the volume of oil will change. Therefore, the standard barrel is a measure of volume under specific conditions.
The price of oil plays a significant role in the global economy, and understanding the composition of refined products within a barrel of crude oil is important for comprehending their respective roles and significance. Gasoline, for example, is one of the most important refined products, accounting for 20 gallons or 45% of a 45-gallon barrel of refined fuels. It is used as fuel for passenger vehicles, boats, power tools, and small engines. Other products derived from a barrel of crude oil include ultra-low-sulfur diesel (ULSD), kerosene, hydrocarbon gas liquids, and residual fuel.
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A standard barrel is 42 US gallons
In the oil industry, a standard barrel is defined as exactly 42 US gallons, or approximately 159 litres or 35 imperial gallons. This standard was set by the Petroleum Producers Association in 1872, and it is based on historical wine measurements.
The use of the 42-gallon barrel as a standard in the oil industry dates back to the first oil discoveries in Pennsylvania in 1859. At this time, oil producers in the region decided that a 42-gallon barrel was the best size for transporting oil. This decision was influenced by the fact that containers bigger than 42 gallons were too large and cumbersome for manual loading, while smaller containers made oil transportation less profitable. The 42-gallon size also has historical roots in King Richard III's England, where a royal decree established a puncheon (a larger wine container) as holding 84 gallons, and a tierce (a smaller barrel) as holding 42 gallons.
The 42-gallon standard was officially adopted by the Petroleum Producers Association in 1872, and it was later endorsed by the US Geological Survey and the US Bureau of Mines in 1882. This standardisation played a crucial role in the founding of 'The Worshipful Company of Coopers', an organisation that specialised in making watertight barrels for various purposes, including colonial wars and military use.
Today, the 42-gallon crude oil barrels are still used to yield the gasoline in modern gas pumps for vehicles. However, it's important to note that the term "barrel" can have different meanings in other contexts, with volumes ranging from approximately 100 to 200 litres (22 to 44 imperial gallons or 26 to 53 US gallons). Additionally, the conversion between barrels and tonnes can vary depending on the type of crude oil, with one tonne of crude oil generally translating to between 6 and 8 barrels.
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Oil companies use kb, mb, and gb
A barrel is a unit of volume used for measuring oil, defined as exactly 42 US gallons, approximately 159 litres, or 35 imperial gallons. In the international oil market, prices are commonly given in United States dollars per barrel. The term 'barrel' is translated in various ways, often derived from the Latin/Germanic root 'fat' (e.g. vat or Fass).
Oil companies, particularly those based in Europe, use kb (kilobarrels, one thousand barrels), mb (megabarrels, one million barrels), and gb (gigabarrels, one billion barrels). The lowercase 'm' is used to avoid confusion with the capital 'M' which stands for 'million' in the SI convention. For similar reasons, the unit kbbl (one thousand barrels) is also used, and the abbreviation 'bbl' has been in use since before 1859.
The oil industry also uses other measurements, such as million barrels per day (MMB/D) and thousand barrels per day (kbpd or KBPD). The barrels-per-day (B/D) measure is commonly used in oil spot markets, as prices are usually quoted in dollars per barrel.
Outside the United States, volumes of oil are usually reported in cubic metres (m3) instead of oil barrels. Companies on European stock exchanges report the mass of oil in tonnes.
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A barrel's volume varies by context
The price of oil is the most important value on the international commodity markets. Oil is usually priced in US dollars per barrel. However, the volume of a barrel can vary depending on the context. A barrel is a round container with a convex shape that is wider in the middle than at the top and bottom. They are usually made of wooden slats called staves and are held together with metal hoops.
In the international oil market, the standard volume of an oil barrel used for pricing and tax is 42 gallons. However, oil drums can hold up to 55 gallons of fluid. The volume of a barrel can be calculated using the formula: volume = (h x π x ((1.25 x r^2) + r^2)) / 3, where h is the height, and r is the radius of the barrel. The volume of a barrel can also be expressed in cubic feet or cubic meters, but it is commonly measured in gallons or liters.
The conversion factor between cubic meters and oil barrels is not exact due to differences in temperature and density, but it is generally accepted that 1 cubic meter is approximately equal to 6.29 oil barrels. This conversion factor is used by exchanges like the New York Mercantile Exchange (NYMEX) for benchmark crude oils.
In other contexts, the term "barrel" can refer to different volumes. For example, in the United States, a dry barrel is defined as 7,056 cubic inches or approximately 115.6 liters, while a barrel for cranberries is defined as 5,826 cubic inches or approximately 95.5 liters. In the United Kingdom, beer barrels have different volumes than in the United States, and historically, the term "barrel" in Europe could refer to volumes ranging from 100 to 1,000 liters.
The varying volumes of barrels in different contexts can lead to complexities in converting volumes, especially when dealing with crude oil, which has different densities and expansion coefficients. These variations must be considered when discussing the price of oil per barrel to ensure accurate measurements and comparisons.
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Frequently asked questions
The price of oil per barrel is influenced by emerging industrial markets such as China, India, and Latin America, which require large amounts of oil to support their economic growth and the resulting rise in energy consumption.
The price of oil is constantly rising because the supply of crude oil is limited and cannot be increased further due to the difficulty of finding and developing new oil reserves.
The price of oil per barrel has a strong influence on international economic development. Oil is the world's most important energy source and is urgently needed in all industrialized countries, so fluctuations in its price can impact global markets.











































