Profile: Star-Oil Co. specializes in petroleum products. We also offer sawdust, coal and wood. Our products include heating oil, bio diesel and lubricants. Biodiesel is a renewable fuel produced from oilseed crops, used cooking oil, and/or animal fat waste. It is chemically similar to petroleum diesel, and is produced by combining the oil stock with catalysts and then heating it. It can be used in any diesel engine. We provide oil and furnace installation & repair services.