Chris Pochari
There is huge lack of detail and analysis in your post.
Rigs are for Drilling. Drilling is normally exploration or development drilling. Some companies actually utilise the lower day rates to increase their drilling "rig" activity.
Not all MODUs can be turned off as many are on longer term contract. I can assure you, making decisions about production, exploration, rig utilisation etc. its not "that simple".
Many lifting costs are quite a bit below the figures you suggest which is why production continues. But when it gets close, oil companies look for savings, often from contractors which hurts everyone including helicopter companies and their share price.