Old Underground Oil Storage Tanks Should Not Kill A Real Estate Transaction
From Realty Times, 2Nov00.

Residential Fuel Oils
From the Ontario Ministry of Environment "Green Tips" publication. [PDF format]

State and Territorial UST Program Directory
Heating oil storage tanks used for consumptive use on-premises are excluded from Federal UST regulations. Check this EPA index for local regulatory authority.

Underground Oil Tanks
From Sound Home Inspections.