Illinois Oil Tank Removal, Inspection & UST Contractors
Find contractors in Illinois for oil tank removal, underground storage tank inspection, fuel tank testing, decommissioning, and remediation.
Illinois Oil Tank Removal, Fuel Tank Inspection & UST Contractors
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If you provide oil tank removal, UST inspection, testing, or related services in Illinois, request to be added to our directory.
Request to Be Listed →Illinois UST regulations are administered by the Illinois Office of the State Fire Marshal. For federal UST requirements, see the EPA Underground Storage Tank Program.
Underground Storage Tanks in Illinois
- Active regulated USTs
- 18,131
- Federally regulated tank compartments registered as active, as of March 31, 2026
- Closed USTs
- 68,216
- Regulated tank compartments closed to date, as of March 31, 2026
- Leaks not yet cleaned up
- 4,598
- Confirmed petroleum releases not yet cleaned up, of 26,905 confirmed to date, as of March 31, 2026
- Homes heated with oil
- 0.1%
- Share of occupied homes whose main heating fuel is fuel oil, kerosene or similar, 2024 estimate
Home heating oil tanks are exempt from the federal UST rules and are not in the EPA counts.
Sources: EPA, UST Performance Measures, Mid-Year FY 2026; U.S. Census Bureau, American Community Survey 2024 1-year estimates, table B25040 (House Heating Fuel).
Common Questions About UST Contractors in Illinois
Does Illinois require a licensed UST contractor?
Yes. Illinois requires contractors performing regulated underground storage tank work to hold a credential issued by the Illinois Office of the State Fire Marshal.
Who regulates underground storage tanks in Illinois?
The Illinois Office of the State Fire Marshal oversees underground storage tank regulations in Illinois. Federal requirements come from the EPA underground storage tank program.
How do I verify a UST contractor's credentials in Illinois?
Ask the contractor for their credential number and confirm it directly with the Illinois Office of the State Fire Marshal. Also ask for proof of insurance appropriate for tank work.