Parallel Ag Agricultural ServicesFarm Equipment / Service Parallel Ag Visit Website 1015 N Hwy 65 Marshall, MO 65340 (660) 886-5575 (660) 886-7994 (fax) http://www.rigginsrco.com Facebook About About A premium distributor of fertilizer, chemical and custom application equipment, parts and service. Located in Marshall, MO, Mead, NE and Hastings, NE.