Filled up my truck yesterday with diesel from Safeway. Price was $187.9. With my Safeway rewards of $1.00 I put in 19.78 gals for $17.39. Been a long time since I've seen it this cheap.
The only alleged downside to cheaper oil is some poor little hedge funds and some bankers losing money.
That, and some oil companies who had very poor forecasters sell them drilling equipment so they could drill for more oil believing that $100 oil would last forever.
Unfortunately, they had to lay off a bunch of people, who also believed the good times would last forever.
You win some, and you lose some. It happens to everybody.