Signs of the Times: Fresh Oil

I saw this sign while driving home from work a few weeks ago. It struck me as kind of odd for three reasons: (1) "Fresh" seems to be at odds with a liquid that generally takes millions of years to produce, (2) If it is referring to fresh because it was recently refined, why is it happening in a residential neighborhood? (unless someone just struck it rich), and finally most simply, (3) I couldn't figure out the immediate reason for the sign.

Fortunately, the reason became apparent further down the street when I saw them using tar to patch cracks in the street. So then it became a little less strange.