
Fossil fuels—petroleum, natural gas, and coal—accounted for about 84% of total US primary energy production in 2023. The US has been relying on fossil fuels since the early 20th century, when the rollout of the automobile, the petrochemical industry, marine shipping, and air travel spurred a huge increase in the demand for oil. In 2018, fossil fuels fed about 80% of the nation's energy demand, down from 84% a decade earlier. In 2023, about 60% of electricity generation in the US was from fossil fuels, with coal, natural gas, and petroleum being the main sources.
| Characteristics | Values |
|---|---|
| Percentage of energy production from fossil fuels in 2023 | 84% |
| Percentage of energy production from fossil fuels in 2017 | 77.6% |
| Percentage of energy production from fossil fuels in 2018 | 80% |
| Percentage of energy production from fossil fuels in 1949 | 84% |
| Percentage of energy production from fossil fuels in 2050 (predicted) | 66% |
| Percentage of GHG emissions from fossil fuels in 2022 | 74% |
| Fossil fuel subsidies in 2022 | $760 billion |
| Percentage of electricity generation from fossil fuels in 2023 | 60% |
| Percentage of energy production from petroleum in 2023 | 33% |
| Percentage of primary energy consumption in the transportation sector from petroleum in 2023 | 89% |
| Percentage of energy production from natural gas in 2023 | 33% |
| Percentage of energy production from coal in 2023 | 19% |
| Percentage of energy production from nuclear energy in 2023 | 9% |
| Percentage of energy production from renewable energy in 2023 | 21% |
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What You'll Learn

Fossil fuels dominate US energy production
Fossil fuels currently dominate US energy production. In 2023, fossil fuels—petroleum, natural gas, and coal—accounted for about 84% of total US primary energy production. This is a slight decrease from 2018, when fossil fuels fed about 80% of the nation's energy demand, down from 84% a decade earlier.
The US has a highly developed and industrialized society, and Americans use a lot of energy in their homes, businesses, and industries. In 2018, the total amount of energy used in the US hit 101.2 quadrillion Btu, the highest level since data collection began in 1949. This is partly due to the rollout of the automobile, the petrochemical industry, marine shipping, and air travel, which spurred a huge increase in the demand for oil beginning in the early decades of the 20th century.
The US has also historically relied heavily on imported oil, particularly after World War II, which caused a shift to natural gas. Oil prices skyrocketed in 1973–74 and again in 1979–80, causing recessions, unemployment, high fuel prices, and long lines of motorists at gasoline stations. The US government responded by boosting reliance on domestic sources of energy, particularly coal, which was abundant and had new sources of low-cost production from western surface mines.
In recent years, dramatic increases in domestic oil and gas production have been driven by new technologies, most notably fracking and horizontal drilling, which enable companies to access underground deposits that were previously too expensive to tap. Fracking, in particular, has had a striking impact on natural gas production, which accounted for about a third of total energy production in 2018. As a result, the US has shifted away from coal towards oil and natural gas. In 2023, natural gas and oil/petroleum accounted for about 60% of electricity generation, with coal making up the rest of the fossil fuel contribution.
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Petroleum, natural gas, and coal are the primary sources
Fossil fuels—including coal, oil, and natural gas—have been powering economies for over 150 years. In 2023, fossil fuels accounted for about 84% of total US primary energy production. Petroleum, natural gas, and coal are the primary sources among fossil fuels.
Petroleum
Petroleum is the basis for oil products and gasoline production. In 2010, 49% of imported petroleum came from the Western Hemisphere, with Canada being the top supplier. In 2018, net imports, mainly petroleum, accounted for less than 4% of the total US energy supply, compared to 26% a decade earlier. In 2023, petroleum provided about 89% of the transportation sector's primary energy consumption but less than 1% of the electric power sector's primary energy consumption. In 2020, oil combustion was responsible for 45% of US energy-related carbon dioxide emissions.
Natural Gas
Natural gas is used to heat approximately half of the homes in the United States, and 31% of the supply is used to generate electricity. In 2020, the US produced about 24% and consumed about 22% of the world's natural gas. In 2023, natural gas was burned to generate an increasing share of US electricity and supplied one-third of the country's energy consumption.
Coal
Coal is used to generate electricity. In 2017, 93% of coal supply was used for electrical generation, but coal only accounted for 48% of the total supply for electrical power generation. In 2020, coal combustion produced a variety of air pollutants that harmed human and environmental health, such as sulfur dioxide, nitrogen oxides, mercury, and particulate matter.
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US fossil fuel consumption by sector
Fossil fuel consumption in the United States fell by 9% in 2020, the lowest level in nearly 30 years. The US consumed 72.9 quadrillion British thermal units (Btu) of fossil fuels in 2020, down from 79.9 quadrillion Btu in 2019.
Petroleum products, including motor gasoline, distillate fuel oil (diesel), and hydrocarbon gas liquids (HGLs), accounted for 44% of US fossil fuel consumption in 2020. Every sector consumes petroleum, but the transportation sector accounted for about 68% of total petroleum consumption in 2020. Overall, US petroleum consumption fell by 13% from 2019 to 2020. Petroleum was the source of 47% of total annual US energy-related CO2 emissions in 2023.
Natural gas accounted for 43% of US fossil fuel consumption in 2020, the largest annual share on record. Every sector consumes natural gas, but the electric power sector accounted for a record-high 38% of total natural gas consumption in 2020. Over 80% of the fossil fuel energy directly consumed in the residential and commercial sectors is natural gas, which is mostly used for space heating. Overall, US natural gas consumption decreased by 2% from 2019 to 2020.
Coal accounted for 13% of US fossil fuel consumption in 2020, the lowest annual share since 1949. The electric power sector consumed about 90% of total coal consumption in 2020. Coal used for electricity generation has steadily declined over the past decade. Overall, US coal consumption fell by 19% from 2019 to 2020, the largest annual decrease on record.
Nonfuel use of fossil fuels, such as in the construction and chemical industries, accounted for about 8% of US fossil fuel consumption in 2020.
The average American consumes 77,000 kilowatt-hours of energy each year, which is 10 times more than the average Indian.
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GHG emissions and environmental impact
The United States is one of the world's largest energy consumers, second only to China. In 2018, the total amount of energy used in the US was 101.2 quadrillion Btu, the highest level since data collection began in 1949. Fossil fuels—including coal, natural gas, and petroleum—accounted for about 84% of total US primary energy production in 2023, with renewable energy sources making up 21% of electricity generation.
The burning of fossil fuels is the largest source of greenhouse gas emissions in the United States. In 2022, fossil fuel combustion accounted for about 74% of total US human-caused (anthropogenic) greenhouse gas emissions. This is a slight decrease from 2021, when fossil fuels accounted for 75% of total US GHG emissions. The transportation sector is the largest source of direct greenhouse gas emissions, with over 94% of the fuel used for transportation being petroleum-based, resulting in direct emissions. The industrial sector is the third-largest source of direct emissions, with emissions coming primarily from burning fossil fuels for energy and certain chemical reactions necessary for producing goods from raw materials.
The United States Environmental Protection Agency (EPA) has reported that since 1990, gross US greenhouse gas emissions have decreased by just over 3%. However, from year to year, emissions can fluctuate due to changes in the economy, fuel prices, and other factors. For example, in 2020, there was a sharp decline in emissions due to the COVID-19 pandemic's impact on travel and economic activity. In 2022, US greenhouse gas emissions increased by 0.2% compared to 2021 levels, driven mainly by a rebound in economic activity and an increase in CO2 emissions from fossil fuel combustion.
To reduce greenhouse gas emissions, the US needs to transform its energy systems, industries, and food systems. Political change is also crucial in creating a system that supports rapid decarbonization. While emissions from fossil fuels have not yet peaked, current policies to reduce or slow the growth of CO2 emissions have already averted some future warming compared to a world without these policies.
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The shift towards renewable energy sources
The United States is one of the highest energy-consuming nations, second only to China. In 2018, the total amount of energy used in the US hit 101.2 quadrillion Btu, the highest level since data collection began in 1949. Fossil fuels such as coal, oil, and natural gas have been the primary energy sources in the US for as far back as data is available. In 2018, fossil fuels accounted for about 80% of the nation's energy demand, with renewable sources accounting for less than 4%.
However, renewable energy sources are gaining traction in the US. Solar and wind power use has grown rapidly over the past decade, and legislation such as the Inflation Reduction Act is expected to further accelerate the transition to renewable energy sources. In 2023 and 2024, solar deployment and electric vehicle sales broke records in the US, and battery storage nearly doubled in 2024, with a projected growth of another 47% in 2025. As of 2024, installed solar capacity in the US totals about 220 GW, enough to provide over 7% of the nation's electricity.
Nuclear energy has also been a significant part of the US energy mix, with its share of US energy consumption peaking in 2020 at about 9%. While the number of nuclear power plants has declined since the 1990s, reactor upgrades and shorter refueling and maintenance cycles have helped compensate for this. In 2023, nuclear energy's share of total US energy consumption was about 9%.
While fossil fuels still dominate the US energy landscape, the country is gradually moving towards renewable energy sources. The growth of renewable energy in the US is expected to continue, driven by increasing public concern about climate change, supportive legislation, and the declining cost and increasing availability of renewable energy technologies.
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Frequently asked questions
Fossil fuels—petroleum, natural gas, and coal—accounted for about 84% of total U.S. primary energy production in 2023.
Fossil fuels account for about 60% of electricity generation in the United States.
Fossil fuels accounted for about 77.6% of the U.S.'s primary energy consumption in 2017. In 2022, 74% of U.S. GHG emissions were from burning fossil fuels.











































