Benelux (made up of Belgium, Netherlands and Luxembourg) is one of the world's largest LPG (liquefied petroleum gas) markets. The most important distributor of this fuel in Benelux, BK-GAS, has announced plans to expand to Germany, after its successful move to France, Italy and Poland. The Dutch company will start its German operations in the North Rhine-Westphalia, Germany's largest LPG market. BK-GAS said it hopes to have 200 fueling stations there in the near future. LPG is also an oil derivative, but is considered an alternative fuel because it has fewer pollutants. It's also a subsidized fuel in many European countries. In Germany, LPG benefits from lower taxes, something that is guaranteed until 2018. It's estimated that the cost of an LPG conversion pays off in twelve months if you drive about 38,000 km (23,600 miles) per year.