OLOXF was created on 2008-06-16 by DB. The fund's investment portfolio concentrates primarily on crude oil commodities. The DB Crude Oil Long ETN seeks to replicate, net of expenses, of the Deutsche Bank Liquid Commodity Index - Optimum Yield Crude Oil Excess Return and offers investors unleveraged exposure to the monthly performance of the DB optimum yield crude oil index plus the monthly TBill Index return, subject to the investor fee.