This idea may be outdated. USA has been considerably undermining Saudi's traditional role of swing producer. Not through their centralised market control, but b

This idea may be outdated. USA has been considerably undermining Saudi's traditional role of swing producer. Not through their centralised market control, but by having many intensely capitalistic shale operations, each with profitable capacity at a different price-point. Each one quickly toggles on/off when the market price crosses its own threshold.