Over the last year, Iraq's global guerrillas have used attacks against gas and oil pipelines to disrupt electricity production. They have been very effective. Electricity production is substantially less than demand and extremely erratic. There are signs that they are getting more effective (see the brief Cascading System Failure for more). Recent attacks show that it is possible to control Iraqi oil exports through power disruptions. Over the last month, interdiction of electrical power has stopped oil exports from its southern oil terminals twice. Due to an electricity failure last month, the facility suffered a 24 hour shutdown, at a cost of ~$100 million to the struggling country. Yesterday's attacks on a gas and oil pipeline that feed Baiji refinery were sufficient to cause a power failure that shut down exports again. This is a critical line of vulnerability that will be exploited in the destabilization of Saudi Arabia.