The effort to put a natural gas severance tax hike before Arkansas voters has been suspended as backers came up short on the number of signatures necessary to put the issue on the November ballot (see Shale Daily, July 10; June 29). Tax hike proponent Sheffield Nelson told local news media he would make a final decision on whether to abandon the effort within a week. The campaign is short about 40,000 signatures after many were disqualifed. The campaign would need to make up the shortfall by Aug. 20 and deliver at least 62,507 valid signatures in total.