KXBJ originally operated as KULP-FM with a studio at 515 East Jackson Street in El Campo, Texas, and was owned by Wharton County Broadcasting until 1968.
KXBJ was granted its License to Cover on November 22, 1968, as KULP-FM, having originally been proposed by local El Campo businessman Louis "Culp" Krueger and his partners, under the name Wharton County Broadcasting, who also owned 1390 KULP. November 22, 1968 (as KULP-FM) 
