ExxonMobil, Cam2 International and Smittys Supply each notified customers of upcoming general price increases on finished lubricants taking effect in mid-June and early July. Factors cited included increased costs for base oil, additives and freight. ExxonMobil will raise prices by up to 9 percent effective July 1, Cam 2 will increase prices by 4 to 9 percent effective June 16, and Smittys Supply will raise prices by 4 to 9 percent effective June 16.