Increases (in volume) have been largely institutional-driven rather than retail-driven.

Obviously, it's going to have a negative impact on commission revenues.

We are all about sustainability.

We've seen a steady increase over the years, and a definite surge in the past few months with oil prices way up.

There are plenty of small restaurants in the Bay Area happy to give away the oil to save the disposal cost. You have to search around for nice oil, not that stuff out of fast-food restaurants like McDonald's.

It's a very self-empowering fuel. You can make it yourself.