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en.wikipedia.org/wiki/Natural_gas

Natural gas is a naturally occurring hydrocarbon gas mixture consisting primarily of methane, .... Town gas is a flammable gaseous fuel made by the destructive distillation of coal. It contains a variety of calorific gases including hydrogen, carbon ...

www.ucsusa.org/clean-energy/coal-and-other-fossil-fuels/how-is-natural-gas-formed

This comprehensive overview explains the basics of how natural gas is formed and where it can be found in the United States and around the world.

www.alliantenergykids.com/EnergyBasics/AllAboutNaturalGas/000511

How Natural Gas Is Made. The natural gas that we use to heat our homes and our water comes from deep under the earth. The gas is found in layers of rock with ...

www.ems.psu.edu/~pisupati/ACSOutreach/Natural_Gas.html

In 2006, the U.S. consumed about 22 trillion cubic feet of natural gas (21% of the world total), compared to 105 trillion cubic feet worldwide. The U.S. produced ...

www.gazprominfo.com/articles/production-of-natural-gas

Depth, at which natural gas is located, varies from 1,000 meters to several kilometers. The process of gas production meaning its extraction from the subsurface, ...

www.adventuresinenergy.org/What-are-Oil-and-Natural-Gas/How-Are-Oil-Natural-Gas-Formed.html

Even higher heat or biomass made predominantly of plant material produced natural gas. Stage 3 - After oil and natural gas were formed, they tended to migrate ...

www.eia.gov/energyexplained/index.cfm/data/index.cfm?page=natural_gas_home

Nov 21, 2016 ... Natural gas also contains small amounts of hydrocarbon gas liquids and nonhydrocarbon gases. We use natural gas as a fuel and to make ...

www.nationalgeographic.org/encyclopedia/natural-gas

Jul 24, 2012 ... Methane, probably the most abundant organic compound on Earth, is made of carbon and hydrogen (CH4). Natural gas deposits are often ...

www.ct.gov/pura/cwp/view.asp?a=3363&q=414224

Abstract: One theory is that natural gas was formed millions of years ago when ... Another theory proposes that the earth is made up of primordial materials that ...

www.nwnatural.com/Safety/GasEducation/TheStoryOfNaturalGas

Natural gas is composed mostly of methane, but it also contains small amounts of ethane, propane, butane, and pentane. Methane, a combination of hydrogen ...