Two proposed ballot questions that would have allowed new regulation of energy drilling in Colorado have fallen short.
Secretary of State Wayne Williams announced Monday that backers of measures No. 75 and 78 did not collect enough valid voter signatures. Initiative 75 would have given local governments the authority to regulate oil and gas development and to ban fracking. Initiative 78 would have implemented a mandatory 2,500-foot setback around oil and gas operations. Seven other citizen-initiated proposals have made the November general-election ballot.