Voter initiatives to control oil and gas drilling are intensifying along with the energy boom. Front Range residents have proposed 17 state ballot measures to bolster local control over drilling. Natural gas production is slowing, but oil production in Colorado is setting records, up from 49 million barrels in 2012 to 63 million barrels in 2013. The key question is how far cities and towns can go to shield residents. Under current law, the state has control over developing oil and gas. Several lawsuits over local control are pending.