There's a lot of speculation on OPEC's motives and power. They could be trying to shut down exploration in the US. The Saudis could be doing the US a favour by trying to destabilise russia. They could be trying to sabotage green energy for a while. Their coalition might just be powerless because everyone needs to pump out as much oil as possible, especially at these price levels.

Regarding future price levels the efficient market hypothesis probably holds: nobody without inside information knows which way the oil price is going.