Fossil Fuels
Fossil fuels—coal, petroleum (oil), and natural gas — are concentrated organic compounds found in the Earth’s crust. They are created from the remains of plants and animals that lived millions of years ago in the form of concentrated biomass. According to the US Energy Information Administration (EIA), fossil fuels meet around 84 percent [i] of U.S. energy demand.

Fossil fuels make modern life possible. These huge sources of energy work to generate steam, electricity and power transportation system. They make the manufacture of tens of thousands of commercial goods possible. And although fossil fuels have become synonymous with modern industrial society, their potential to solve some of the challenges of everyday existence has been understood throughout history.
Scattered records of the use of coal date to at least 1100 BC. By the Middle Ages, small mining operations began to spread in Europe, where coal was used for forges, smithies, lime-burners, and breweries. The invention of fire bricks in the 1400s made chimneys cheap to build and helped create a home heating market for coal. Coal was firmly established as a domestic fuel in much of Europe by the 1570s, and represented the major heating source for buildings, especially in cities located far from easy access to less energy-dense biomass forms.
Coal was the first of the fossil fuels to go into widespread use, displacing low-energy firewood as the leading source of fuel in the US, and triggering the country’s industrialization in the second half of the 19th century. Within a few decades, the US went from a net importer of coal (mostly from Britain) to a major exporter of the fossil fuel, a development made possible by mining the nation’s vast reserves of coal.
Oil was used in architectural adhesives, ship caulks, medicines, and roads in Mesopotamia around 3000 BC. Two thousand years later, the Chinese refined crude oil for use in lamps and home heating. The ancient Chinese also were pioneers in natural gas, using it to make salt from brine in gas-fired evaporators, boring shallow holes, and conveying the gas to evaporators via bamboo pipes. By the 19th century, natural gas was used extensively in Europe and the US as lighting fuel until it was displaced by Thomas Edison’s electric light bulb.
Edwin Drake’s successful extraction of oil at his well in northwestern Pennsylvania in 1859 marked the dawn of the age of petroleum. Petroleum’s first decisive impact was displacing whale oil in lighting in the late 19th century. But it was the victory of the internal combustion engine over steam and electricity as the preferred means to propel the recently-invented automobile in the first decade of the 20th century that thrust petroleum into the prominence it still enjoys today. Fueled by gasoline made from inexpensive and readily available oil, internal combustion cars, notes Alan P. Loeb, “alone offered a combination of speed and power, range and infrastructure that gave motorists the ability to achieve the automotive purposes they desired.”
Fossil Fuels Today: Oil, By the Barrel
The US Energy Information Administration (EIA) credits fossil fuels for bringing about “one of the most profound social transformations in history.”
Of the fossil fuels, none has had a more far-reaching effect on society than oil. Oil, in all its forms, is the “transportation fuel” that makes all modern modes of transportation possible and moves both people and goods around the world. Once the products of refined crude oil came into widespread use, the US, along with most of Europe and Japan, was transformed from an agrarian, subsistence and hand-to-mouth society for all but a few to an industrial society in which many shared a better life within a few decades.
Today, the most common products derived from oil are found in the energy sector: gasoline, heating oil, aviation fuels and diesel fuel. Oil is also the key ingredient in tens of thousands of consumer goods, including ink, plastic, dishwashing liquids, crayons, eyeglasses, deodorants, tires, ammonia, and heart valves. Each 42-gallon barrel of oil typically yields these refined products (percent of barrel)[i]:
- 44.2% gasoline for use in automobiles
- 27.8% heating oil and diesel fuels
- 22.2% other products, including those derived from petroleum for the manufacturing of chemicals, synthetic rubber, and plastics.
- 9.6% jet fuel
- 2.7% asphalt
Included is a processing gain of over 5 percent or 2.68 gallons. Thus, a 42-gallon barrel of crude oil in actuality yields 44.68 gallons of refined products.[ii]
The United States was once self-sufficient in oil, but began importing more oil than it produced in 1994. By 2008, 57 percent[iii] of the oil consumed in the US was imported from foreign countries. The top five source nations for net petroleum and petroleum product imports to the US in 2008 were Canada, Saudi Arabia, Mexico, Venezuela, and Nigeria.[iv]
Despite the rapid growth of global demand for petroleum products, the EIA estimates that less than half the world’s total conventional oil reserves will have been exhausted by 2025. These estimates include existing oil reserves and anticipated reserves resulting from new technologies and discoveries. World oil reserves as of January 1, 2009, total 1342.2 billion barrels[v], over 2.5 times their level in 1971.[vi] The world’s oil reserves have steadily increased even in the face of rising consumption.
Coal, by the “Short Ton”
Coal, the first of the fossil fuels to make its presence felt in the modern era, remains a major contributor to the world’s energy pool. Once burned in chimneys to produce heat, today coal is widely used as fuel for power plants that generate electricity for residential and commercial customers. In fact, it accounts for about 50 percent of US electricity.[vii]
American coal production is currently the second highest in the world (behind China)[viii], delivering 1.17 billion short tons in 2008.[ix] The United States has a vast amount of in-place coal resources, over 10 trillion short tons[x], and has the most technically recoverable coal in the world at 262.7 billion short tons[xi]. From mines around the country, coal is transported to over 500 power plants in the US in diesel-powered freight trains. Similarly, the coal the US exports to overseas markets is carried on ships powered by petroleum-based bunker fuel, a further example of one fossil fuel being used to transport another.
Natural Gas, by Trillions of Cubic Feet (TCF)
Natural gas, once considered a nuisance by workers drilling for oil, was the last of the fossil fuels to emerge as a major source of energy.
Development of the steel pipeline and related equipment, which allowed natural gas to be easily and safely transported over many miles, launched the modern natural gas industry. The first all-welded pipeline over 200 miles in length was built in 1925, from Louisiana to Texas.
From 1906 to 1970, demand for natural gas in America grew 50-fold. Self-sufficient until the 1990s, the US now imports natural gas, mostly from Canada, to help meet its needs.
Today, the United States is the second-largest producer of natural gas (behind Russia), producing 20.6 trillion cubic feet in 2008.[xii] The US consumed 21 percent of all natural gas produced worldwide in 2007. By sector, US natural gas consumption in 2008[xiii] was:
- 34% Industrial
- 29% Electric Power
- 21% Residential
- 13% Commercial
- 3% Transportation
Led by the booming economies of China and India, growing global demand for energy is expected to secure the dominant position of fossil fuels for at least the next several decades.
Supply Crunch
Assuming an annual global economic growth rate of 3.3 percent, the Paris-based International Energy Agency (IEA) predicts in a November 2008 report that fossil fuels will account for 79 percent of the overall increase in worldwide energy demand between 2006 and 2030. “Oil remains the single largest fuel,” the IEA says, “though its share in global demand falls from 34 percent to 30 percent.” “In line with the spectacular growth of the past few years,” the IEA reports, “coal sees the biggest increase in demand in absolute terms, jumping by 61 percent between 2006 and 2030, and pushing its share of total energy demand up from 26 percent to 29 percent.”[xiv]
The IEA’s forecast is in line with estimates made by the EIA. The US agency also sees fossils fuels, led by petroleum, leading global demand for energy in 2030.
The EIA predicts global consumption of oil to rise 25 percent between 2006 and 2030. Over the same time period, natural gas consumption is expected to increase by 46 percent and coal 49 percent.[xv] Similar to world consumption, the EIA foresees fossil fuels maintaining their status as America’s leading source of energy consumption between now and 2030.
America is endowed with huge quantities of fossil fuels. The responsible use of these resources has fueled our factories, furnaces, homes, highways and hospitals since their first use. Vast quantities exist in untapped forms that hold promise for generations to come. Access to these energy resources, and the discovery of new technologies to safely and cleanly use them for the benefit of mankind is an ongoing challenge. Governmental decisions about the use of these energy resources have tended to place them out of reach of the American people, increasing our dependency on others for those supplies.
Because much of our future potential supplies of fossil fuels exist under lands owned by the federal government, its decisions will have a major bearing on how we live our lives. In 2008, in the midst of the highest gasoline prices in history, President Bush revoked the executive moratoria on offshore drilling, and Congress did not renew its ban on drilling for offshore oil and natural gas. However, while the Bush Administration put forth an accelerated schedule for leasing the Outer Continental Shelf’s oil resources, the Obama Administration is extending the comment period, delaying the ability for oil companies to purchases leases and to begin exploratory drilling.
[i] Energy Information Administration, http://tonto.eia.doe.gov/dnav/pet/pet_pnp_pct_dc_nus_pct_a.htm .
[ii] Energy Information Administration, http://www.eia.doe.gov/kids/energyfacts/sources/non-renewable/oil.html#How%20used .
[iii] Energy Information Administration, Monthly Energy Review, May 2009, http://www.eia.doe.gov/emeu/mer/pdf/pages/sec3_3.pdf .
[iv] Energy Information Administration, Monthly Energy Review, May 2009, http://www.eia.doe.gov/emeu/mer/pdf/pages/sec3_10.pdf .
[v] Energy Information Administration, International Energy Outlook 2009, Table 4, http://www.eia.doe.gov/oiaf/ieo/pdf/0484(2009).pdf .
[vi] Institute for Energy Research, http://www.instituteforenergyresearch.org/2008/08/26/has-oil-reached-its-peak/
[vii] Energy Information Administration, Monthly Energy Review, May 2009, http://www.eia.doe.gov/emeu/mer/pdf/pages/sec7_5.pdf .
[viii] Energy Information Administration, International Energy Outlook 2009, http://www.eia.doe.gov/oiaf/ieo/pdf/0484(2009).pdf .
[ix] Energy Information Administration, Monthly Energy Review, May 2009, http://www.eia.doe.gov/emeu/mer/pdf/pages/sec6_3.pdf .
[x] US Department of the Interior, US Geological Survey, http://pubs.usgs.gov/dds/dds-077/ .
[xi] Energy Information Administration, International Energy Outlook 2009, Table 9, http://www.eia.doe.gov/oiaf/ieo/pdf/0484(2009).pdf
[xii] Energy Information Administration, Monthly Energy Review, May 2009, http://www.eia.doe.gov/emeu/mer/pdf/pages/sec4_3.pdf .
[xiii] Energy Information Administration, Monthly Energy Review, May 2009, http://www.eia.doe.gov/emeu/mer/pdf/pages/sec4_5.pdf .
[xiv] Organization for Economic Cooperation and Development, International Energy Agency, World Energy Outlook, November 2008.
[xv] Energy Information Administration, International Energy Outlook 2009, http://www.eia.doe.gov/oiaf/ieo/pdf/0484(2009).pdf .
[i] Energy Information Administration, Monthly Energy Review May 2009, http://www.eia.doe.gov/emeu/mer/pdf/pages/sec1_7.pdf .












