My guess is OPEC is trying to make alternative energies obsolete by reducing the price as much as they can. Granted they're not the only oil cartel but they are the largest, and we've got a presidential campaign being run, basically, on energy. This is true for both sides.
Drops this week make me feel the target may end up in the 80s as we're only $5 from 90s right now. We should be back in the $2.90s for unleaded soon.