BP (BP) Invests in Cellulosic Ethanol Written By: Miranda Marquit 2008-08-07 11:41:52 BP (BP) is one of those Big Oil companies that has invested a great deal of advertising money into convincing people that it is diversifying in the name of the earth (you know, "beyond petroleum"). BP seems especially interested in biofuels. The company has been known to invest in jatropha, as well as biofuel ventures in various countries.