Morania Oil of Long Island Voted #1 in customer Satisfaction by Long Island Homeowners. Building Trust on LI for Over 70 years in business Since 1937. Ask about our unique Price Cap Guarantee Program, Complete Sales and Installations. Heating Oil, Oil Burners, Boilers, Oil Tanks, Water Heaters , Prompt Burner Service and repair. Professionally Trained Service technicians, Free Efficiency Tests. Affordable Service contracts. Budget Plans.