Earlier quoted context omitted.
The $10 barrels are for delivery now, not next year. If you can store the oil you can earn a lot of money now. But most people can't store much oil, compared to the volumes that are being pumped out of the ground. And for many of the producers, slowing down production by more than a few per cent is also difficult — once you turn off the tap you don't really know whether the oil is going to start flowing again later.…
> once you turn off the tap you don't really know whether the oil is going to start flowing again later You mean it can actually physically stop if the flow from the ground is blocked for a while? Can you expand if possible. Edit: I understand it comes out of the ground quite hot (I've heard of 200 C) and if it flows into cool pipes and stays still maybe it would 'congeal'.
Another way of looking at it is: You've drilled holes to make the oil flow. There are kilometers of rock on top of the oil layer, pushing down, pushing the oil towards the holes you've drilled. You can close the end of the hole, but you can't make that weight go away. The system is going to find a new equilibrium. The new equilibrium is not one you've tried to optimise for maximum total oil production.