Low energy prices are good for other-than-energy-producing industries.
How can that not be true?
That depends if your industry was selling, pumps, pipes, switchgear, etc to the oil industry.
It's good for any entity that consumes it, but some egghead will start spewing economic sophistry to 'prove' that it isn't.
On the other hand, it can be a problem for cartels (guess who) and for marginal operators in the supply chain (i.e. in America).
If an entity is sitting on a pool of oil, it can screw with the the supply and play "beggar thy neighbor" with its currency at the same time if it has an interest in geopolitical instability. That would, of course, be Russia.