Fuel oil, No. 4

CAS 68476-31-3

U.S. production volumes are classified as confidential business information.

US productionCBI

Confidential Business Information. The EPA withholds this volume because publishing it could reveal the reporting company's trade secrets.

Import value, 2024$31.2B

Top sourceCanada 26%

At least one company claimed its 2023 production or import volume for this chemical as confidential, so EPA withholds it.

Why supply is unknown

Production is reported production, not a complete census of factories. US production volume is confidential. Production reporting year: 2023. Import value and source-country shares describe a shared customs category, not a separate chemical measurement.

Where It Comes From

Customs basis: HS 271019 · basket

EPA reports by year

2023: US production Confidential · Imports Confidential
2019: US production Confidential · Imports Confidential

These shares come from HS customs code 271019, which covers 156 tracked chemicals in total. They estimate the category's origin mix, not this chemical specifically.

Source Countries

Country of origin for US imports, from Census customs data (2024).

CA 26%CanadaMX 13%MexicoKR 11%South KoreaSG 6%SingaporeIQ 6%Iraq

Finland
Spain
Japan
Ecuador
Denmark
Taiwan
Malaysia
Indonesia
Pakistan
Brunei
Venezuela
Oman
Bahamas
Chile
Argentina
Sweden
Lithuania
Gabon
Poland
Jamaica
Egypt
Switzerland
Hong Kong
Israel
Ukraine
China
Austria
Antigua and Barbuda
El Salvador
Greece
Portugal
Romania
Bermuda
Trinidad and Tobago
Panama
Hungary
Dominican Republic
Costa Rica
South Africa
Slovakia
Uruguay
Morocco
Estonia
Cyprus
Australia
Czech Republic
Barbados
Norway
Latvia
Sri Lanka
Belarus
Ireland

EPA-registered manufacturers (1)

Companies that report making or importing this chemical to the EPA. Registration is US-centric and does not indicate import origin.

Chevron Phillips Chemical

Domestic parents -- activity not disclosed (4)

EPA records name a US company for this chemical but do not disclose whether the company made it here or imported it.

Glencore

Macquarie Holdings (U.S.A.)

Valero Energy

EPA-registered importers (1)

Companies that report making or importing this chemical to the EPA. Registration is US-centric and does not indicate import origin.

Marathon Petroleum

Why It Matters

No EPA sector or FDA product records name a use for this chemical.

Chemical Identity

CAS68476-31-3

PubChem CIDNot recorded

DTXSIDDTXSID6028527

FormulaNot recorded

Mol. WeightNot recorded

SMILESNot recorded

Data Sources

EPA CompTox (DSSTox) · DTXSID6028527Retrieved 2026-04-06
EPA Chemical Data ReportingReporting year: 2023 · Retrieved 2026-10-04
US Census international tradeReporting year: 2024 · Retrieved 2026-10-04

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Brief citations

Fuel oil, No. 4 (CAS 68476-31-3) https://chemicalindependence.com/chemical/68476-31-3/ EPA CompTox (DSSTox): DTXSID6028527. Retrieved 2026-04-06. https://comptox.epa.gov/dashboard/chemical/details/DTXSID6028527 EPA Chemical Data Reporting: 68476-31-3. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting US Census international trade: HS 271019 for CAS 68476-31-3. Reporting year: 2024. https://usatrade.census.gov/