However it is worth mentioning that it is better to be primed and ready for the upturn, than to only start thinking about the upturn once things are cooking. In the depths of an oil recession such as we have now it is hard to see the light at the end of the tunnel but history shows the end does come, often quite quickly, and the industry always lags behind.
So I'm not saying that you should push on with your IR right now (unless you have the money to spare) but do keep an eye on the oil industry and react early when the upturn starts.