DENVER (AP) — Adams County could become the first community in Colorado to require a larger separation between new wells and occupied buildings than the state mandates, as leaders at both the state and local level wrestle with how to implement a historic oil and gas reform law passed this year.

The Denver Post reported Sunday that a draft of the county's oil and gas regulations call for a 1,000-foot (305-meter) buffer between wells and homes, schools and day care centers — doubling the distance the state presently requires. County commissioners will likely vote on the proposal at the end of th...