(Shafter, CA)  --  An Oregon man who allegedly led CHP officers on a chase from Los Angeles to Bakersfield, California, in a motorhome is still on the loose.  His two children, who were inside the motorhome, have been reunited with their mother.  Authorities say 46-year-old Stephen Houk is a registered sex offender from Oregon.  He allegedly led law enforcement on the 100-plus-mile pursuit Tuesday night that ended in an almond orchard in Shafter.  Police surrounded the motorhome but Houk was gone and a search of the orchard went on for hours.  He's believed to be armed and is wanted on suspicion of evasion, child abduction, child endangerment and weapons violations.