The Indian Health Service, Shiprock Service Unit is seeking market research to identify capable firms for a potential contract involving Fuel Delivery for Emergency Generators and Hot Water Boiler, with a base period plus four option years. The applicable NAICS code is 324110 (Petroleum Refineries), with a small business size standard of 1,500 employees. Responses to this sources-sought notice are due by May 19, 2026, at 12:00 PM MST. No budget information or performance location is specified in the description. This notice is for market research only and is not a solicitation.