THE EMPLOYEE MANUALLY MOVED A 55 GALLON DRUM OF OIL BY PUSHING/PULLING/ROLLING THE DRUM. HE STATED THAT HE EXPERIENCED PAIN IN HIS LEFT SHOULDER, LOWER BACK AND UNDER HIS RIBS. AT THE TIME OF THE ACCIDENT HE DID NOT WANT TO SEEK MEDICAL TREATMENT. HE WAS SENT FOR A MEDICAL EVALUATION ON 2/4/04 AND PLACED ON MODIFIED DUTY.