Gas oils, petroleum, heavy atmospheric

CAS 68783-08-4

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 (11)

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

Shell Plc · GB United Kingdom

Big West Oil

Calumet Specialty Products Partners

Chevron

Delek Us Holdings

Show all 11

Hf Sinclair

Marathon Petroleum

Par Hawaii Refining

Phillips 66

Shell Petroleum

Suncor Energy Usa

Domestic parents -- activity not disclosed (2)

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

Shell

Valero Energy

Why It Matters

Sectors

EnergyCore Chemicals

Downstream UsesNot recorded

FDA Shortage Status

Whether any manufacturer currently reports this drug as in shortage on the FDA Drug Shortages database. "Active Shortage" means at least one presentation has status "current."

No FDA shortage records

Industrial Uses

Used in 2 sectors as 2 functional roles.

•Fuels and fuel additives in Petrochemical Manufacturing (100%)Processing—incorporation into formulation, mixture, or reaction product
•Intermediate in Petroleum Refineries (100%)Processing as a reactant

Chemical Identity

CAS68783-08-4

PubChem CIDNot recorded

DTXSIDDTXSID0028797

FormulaNot recorded

Mol. WeightNot recorded

SMILESNot recorded

Data Sources

EPA CompTox (DSSTox) · DTXSID0028797Retrieved 2026-04-06
EPA Chemical Data ReportingReporting year: 2023 · Retrieved 2026-10-04
EPA Chemical Data ReportingReporting year: 2019 · Retrieved 2026-10-04
US Census international tradeReporting year: 2024 · Retrieved 2026-10-04

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Brief citations

Gas oils, petroleum, heavy atmospheric (CAS 68783-08-4) https://chemicalindependence.com/chemical/68783-08-4/ EPA CompTox (DSSTox): DTXSID0028797. Retrieved 2026-04-06. https://comptox.epa.gov/dashboard/chemical/details/DTXSID0028797 EPA Chemical Data Reporting: 68783-08-4. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting EPA Chemical Data Reporting: CAS 68783-08-4. Reporting year: 2019. https://www.epa.gov/chemical-data-reporting US Census international trade: HS 271019 for CAS 68783-08-4. Reporting year: 2024. https://usatrade.census.gov/