Current methods for degradation of petroleum contamination has proven to be expensive and, if to let nature take its course, can take a considerable amount of time to digest the contaminants naturally. Current accepted methods of disposal would include incineration and landfill application, but these can be prohibitively expensive when the contaminated soil can be in large quantities. Mechanical and chemical methods have also been used to remove hydrocarbons from sites, but have had limited effectiveness and can be expensive. Bioremediation is a natural tool that can be used for treatment of these contaminated sites, since it can be both cost-effective and can lead to complete removal of the contaminants.