Marathon Kenai Refinery — United States
Refinery in United States. Approximate location 60.68234, -151.37668.
RefineryUnited StatesCO₂ estimate (modelled)
Marathon Kenai Refinery is a refinery in United States. Its listed capacity is 68,000 BBL per day. Refineries heat, fractionate and chemically transform crude oil into fuels and petrochemical feedstocks through energy-intensive distillation and cracking — extremely demanding on steam generation and heat recovery. It is operated by Marathon Petroleum Corp. By capacity it ranks #76 among 119 oil refineries in United States. It emits about 733,863 t CO₂e a year from Climate TRACE. That is 0.13% of the CO₂e from the 1,910 facilities in United States that have an emissions figure in IndustryAtlas. Its CO₂ per unit of capacity is 25% above the national median for this sector.
Facility data: Climate TRACE v6 (asset-level capacity & CO₂e, CC BY 4.0), id ct-1753346.
Data status
Known source data
Calculated from the dataset
Not available
Source data, measured cross-checks and calculated values are kept separate. No confidence percentage is invented.
Similar facilities by modelled emissions
- Sonatrach Algiers Refinery Algeria · 733,386 t CO₂e/yr · Algeria
- Pertamina Balongan Refinery · 732,951 t CO₂e/yr · Indonesia
- Fuji Oil Sodegaura Refinery · 736,584 t CO₂e/yr · Japan
- CNOOC Taizhou Petrochemical Refinery · 742,246 t CO₂e/yr · China
- Delek Krotz Springs Refinery · 718,652 t CO₂e/yr · United States
Same Climate TRACE subsector; closest non-placeholder modelled CO₂e values. Russia and Belarus excluded.
Operating power plants within 50 km
- Tesoro Kenai Cogeneration Plant · Gas · 9 MW · 1 km
- Nikiski Combined Cycle · Gas · 81 MW · 1 km
- Agrium Kenai Nitrogen Operations · Gas · 12 MW · 1 km
- Bernice Lake · Gas · 77 MW · 1 km
- Soldotna · Gas · 50 MW · 29 km
PowerAtlas operating assets, ordered by great-circle distance from published coordinates.
In context: how this facility compares
At 68,000 BBL per day, Marathon Kenai Refinery is below the median refinery in United States (89,200 BBL per day). Subsector: oil-and-gas-refining. As refinery, it requires high process heat (typically 200–600°C) for its core industrial operations, supplied by boilers, furnaces or direct combustion. Refineries heat, fractionate and chemically transform crude oil into fuels and petrochemical feedstocks through energy-intensive distillation and cracking — extremely demanding on steam generation and heat recovery.
Capacity & CO₂-intensity comparison computed from Climate TRACE industrial facilities data; sector role based on engineering reference.
What 733,863 t CO₂e a year looks like
This facility's estimated annual CO₂e (Climate TRACE, modelled) in everyday equivalents from the US EPA Greenhouse Gas Equivalencies calculator:
Equivalencies: US EPA Greenhouse Gas Equivalencies. Emissions: Climate TRACE.
Carbon cost and Scope 1 emissions
At its reported 734k t CO₂e/yr (Scope 1), Marathon Kenai Refinery carries no domestic carbon price, and its products are not CBAM-covered goods, so there is no border-carbon liability. At the EU ETS reference price (€75/t) the emissions carry an indicative carbon value of €55.3M/yr.
Carbon price: EU CBAM €75/t · EU ETS €85/t, September 10, 2026, refreshed live via Carbon Hub. CO₂: Climate TRACE. Indicative carbon value, not the cash bill — free allocation applies; not compliance advice.
Capacity vs largest oil refineries in United States
Listed capacity (BBL per day), Climate TRACE v6 (asset-level capacity & CO₂e, CC BY 4.0).
Operator
Operated by Marathon Petroleum Corp. All facilities by this operator →
Local climate
Marathon Kenai Refinery sits in a Mediterranean subarctic climate zone (Köppen Dsc), at 60.7°N in the northern hemisphere.
Köppen zone: Köppen-Geiger world climate classification (Kottek et al. 2006, 0.5° grid).
Site climate & environmental severity
This site sits in a mild atmospheric environment (estimated ISO 9223 class C2 — Low), with thermal cycling the leading environmental stress.
In this site’s local climate, a bare 150 °C surface sheds about 1482 W/m² to ambient — roughly 1.14× the loss at a 20 °C reference. Reference-surface calculation at a 150 °C surface from WorldClim climate normals (ASTM C680 / ISO 12241) — an indicative per-climate comparison, not a measurement of this site’s specific equipment. Open method dataset: DOI 10.5281/zenodo.20787408 (CC BY 4.0).
Indicative estimate via the ISO 9223:2012 informative method (atmospheric corrosivity from temperature, time-of-wetness and airborne salinity), using WorldClim climate normals, the Köppen-Geiger class and coast distance. Indicative, not a measured corrosion rate.
How it compares & nearby sites
The #76 largest of 119 oil refineries in United States by listed capacity (Climate TRACE).
Nearby industrial sites
- TESORO ALASKA PETROLEUM CO · Chemical Plant · 84,952 t CO₂
- St. Elias Brewing Company · Food & Beverage
- Charlie'S Produce · Food & Beverage
- Bald Bros Llc · Food & Beverage
- Heather'S Choice Production Facility · Food & Beverage
- Alaska Commercial Co. · Food & Beverage
Location
Coordinates 60.68234, -151.37668. View on OpenStreetMap.
Frequently asked questions
What type of facility is Marathon Kenai Refinery?
Marathon Kenai Refinery is a refinery in United States. Refineries heat, fractionate and chemically transform crude oil into fuels and petrochemical feedstocks through energy-intensive distillation and cracking — extremely demanding on steam generation and heat recovery.
What capacity is listed for Marathon Kenai Refinery?
The open dataset lists 68,000 BBL per day of capacity for Marathon Kenai Refinery.
How much CO₂ does Marathon Kenai Refinery emit?
The page uses about 733,863 t CO₂e/year from the open dataset It ranks #168 among facilities in United States by estimated CO₂.
Where is Marathon Kenai Refinery located?
Marathon Kenai Refinery is in United States at approximately 60.68234, -151.37668.
Who operates Marathon Kenai Refinery?
The operator recorded in the open dataset is Marathon Petroleum Corp.