95% of last year's drilling was in Weld County, so your idea appears good. However, areas just east of the Front Range axis are prime, and they are west of I-25. That encroaches on Boulder, Longmont and Loveland. Though the issue is heated, it is focused on a much smaller area than the article implies. Loveland has set a fracking moratorium vote for July 29th, which is unlikely to pass (perhaps that's why they set the vote) and would be beyond the city's powers if it did. The local rights fracking issue is limited to Boulder County: Boulder and Longmont.
The oil companies would do well to cool their heels until this blows over, and to drill where they won’t face opposition.
Many moons ago, I worked gas wells in Western CO, near Rifle, and iirc, the oil/gas patch out there extends up to Craig. There is also considerable interest in the Green River Shale, as soon as someone figures out how to extract the oil. Hydraulic fracturing isn’t the only variety of fraccing out there (The US Government even tried a nuke downhole), so be careful what you ban where, ‘cause you might want it later.