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  • Propane

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    Propane () is a three-carbon alkane with the molecular formula . 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. Propane is one of a group of liquefied petroleum gases (LP gases). The others include butane, propylene, butadiene, butylene, isobutylene, and mixtures thereof.

  • Natural gas prices

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    Comparison of natural gas prices in Japan, United Kingdom, and United States, 2007-2011 Natural gas prices at the Henry Hub in US Dollars per MMBtu for the 2000-2010 decade. Price per million BTU of oil and natural gas in the US, 1998-2015Natural gas prices, as with other commodity prices, are mainly driven by supply and demand fundamentals. However, natural gas prices may also be linked to the price of crude oil and/or petroleum products, especially in continental Europe. Natural gas prices in the US had historically followed oil prices, but in the recent years, it has decoupled from oil and are now trending somewhat with coal prices. The current surge in unconventional oil and gas in the U.S. has resulted in lower gas prices in the U.S. This has led to discussions in Asian oil-linked gas markets to import gas based on the Henry Hub index, which was, until very recently, the most widely used reference for US natural gas prices. Depending on the marketplace, the price of natural gas is expressed in US dollars (or other currency) per 1 million British thermal units (MMBtu), thousand cubic feet (Mcf), or 1,000 cubic meters. Note that, for natural gas price comparisons, $ per MMBtu multiplied by 1.025 = $ per Mcf of pipeline-quality gas, which is what is delivered to consumers. For rough comparisons, one million Btu is approximately equal to a thousand cubic feet of natural gas. Pipeline-quality gas has a BTU value slightly higher than that of pure methane, which has 1,012 BTU per cubic foot. Natural gas as it comes out of the ground is most often predominantly methane, but may have a wide range of BTU values, from much lower (due to dilution by non-hydrocarbon gases) to much higher (due to the presence of ethane, propane, and heavier compounds) than standard pipeline-quality gas.

  • Oil Price Information Service

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