Utilities Keywords: Advanced Search Directory View All Listings #0-9ABCDEFGHIJKLMNOPQRSTUVWXYZ(Reset) Inter-Island Propane LLC Business Name Inter-Island Propane LLC Business Genre Propane, Utilities Business Website Address https://www.interislandpropane.com/ Business Phone Number (360) 378-1025 Business Address 815 Spring Street Friday Harbor WA 98250