We had fuel oil in our last home and upon inspection, were told that our furnace burned at 96.8% efficiency or something like that. The inspector said it was very good, and that fuel oil is a great heating source when burned efficiently. I think it was more of an approval of the furnace than the oil, but you'd think the oil must have been pretty good to get such a review as well. Anyway, we used Como Oil. Since then, they've painted some of their trucks pink and donate a penny per gallon or something to cancer research, plus they support every arts-related event and organization they can. I really hope they're not your current company in question.