Jeepman is correct. There are two Warren oils, which have no affiliation to eachother.
Warren Performance Products bottles many house brand oils. If you look at the bottom of an oil bottle and it has the stamp WPP or WNE, thats their product.
Warren Unilube/Warren Oil bottles Coastal oils, Advance Auto house brand, and Lubrigard HDEO, among others. Usually their bottle stamp looks like WU(the U looks a little funky, but readable)