# Marathon Los Angeles Refinery (Carson Operations; formerly Tesoro Los Angeles Refinery)

Marathon Los Angeles Refinery (Carson Operations; formerly Tesoro Los Angeles Refinery), Carson, CA. 365,000 bpd crude capacity (EIA-820). Injects into Calnev Pipeline and Kinder Morgan SFPP; reaches 16 delivery points and 35 terminals by published tariff. Crude supply, outlets, events.

- Location: Carson, CA
- Status: active
- Crude capacity: 365,000 bpd (EIA-820)
- Operator: Tesoro Refining & Marketing Company, LLC (dba Marathon Los Angeles Refinery)
- Parent: Marathon Petroleum Corporation

## Pipelines it injects into
- Calnev Pipeline at Watson (same city) — https://thinkingonenergy.com/supply/pipeline/calnev-pipeline/
- Kinder Morgan SFPP at Watson (same city) — https://thinkingonenergy.com/supply/pipeline/kinder-morgan-sfpp/

## Reach by published tariff route
| Pipeline | Delivery points | Terminals | Lowest ¢/bbl | Median ¢/bbl |
|---|---|---|---|---|
| Kinder Morgan SFPP | 14 | 53 | 14.58 | 107.43 |
| Calnev Pipeline | 2 | 0 | 251.13 | 251.13 |

## Crude supply
- pipeline: Unnamed in-state pipeline(s) — Marathon's own site states the refinery 'processes heavy crude from California's San Joaquin Valley and Los Angeles Basin' delivered domestically; an older description specifically notes domestic crude is received by pipeline from California.
- marine: Third-party marine terminal, Port of Long Beach — Crude oil (foreign and additional domestic) is received by tanker through a third-party terminal in the Port of Long Beach and piped to the refinery; directly confirms the graph's LA/Long Beach Harbor marine-terminal inbound edge.

## Product outlets
- pipeline: Kinder Morgan SFPP (West Line) — SFPP's West Line explicitly moves refined products out of the Los Angeles Basin (where Carson is located) toward Colton/Imperial, CA and Phoenix, AZ; Marathon's own materials say the refinery 'ships products via its connections to several product distribution pipelines and terminals' without naming them.
- rack_terminal: SFPP, L.P. - Watson Station — 'Watson' is the name of the Carson refinery site itself (home to the refinery's Watson Cogeneration Plant, the largest cogen facility in California) -- a Kinder Morgan SFPP Watson Station rack terminal at this location is consistent with a refinery-direct product offtake.

## Recent events
- 2025-11 — CEQA notice filed for the 'Marathon Los Angeles Refinery Modernization Projects,' aimed at replacing end-of-life equipment, adding asphalt-binder production capability, and enabling flexible shifts between transportation-fuel and octane-blending-component yields.

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Source: Thinking On Energy Supply Explorer — https://thinkingonenergy.com/supply/refinery/tesoro-refining-marketing-co-carson-ca/
Built from published FERC pipeline tariffs, EIA-820, the IRS Terminal Control Number list and sourced research. Rates are line-haul only. Cite as: Thinking On Energy, Supply Explorer, 2026-09-29.