PHILLIPS 66 SANTA MARIA REFINERY
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ARROYO GRANDE, CA · SAN LUIS OBISPO COUNTY · NAICS 324110
Data updated May 2026
Annual Emissions History
| Year | Total CO2e (MT) |
|---|---|
| 2023 | 12,029 |
| 2022 | 145,314 |
| 2021 | 150,635 |
| 2020 | 175,062 |
| 2019 | 169,349 |
| 2018 | 169,487 |
| 2017 | 189,508 |
| 2016 | 200,388 |
| 2015 | 214,093 |
| 2014 | 247,962 |
| 2013 | 252,575 |
| 2012 | 239,282 |
| 2011 | 241,097 |
Facility Insight: PHILLIPS 66 SANTA MARIA REFINERY
PHILLIPS 66 SANTA MARIA REFINERY (EPA GHGRP Facility ID 1006099) reported 12K metric tons of CO2-equivalent in 2023, operating in ARROYO GRANDE, CA within SAN LUIS OBISPO COUNTY. The site is classified under Petroleum Product Suppliers with NAICS code 324110.
The facility has 13 years of reported data on record, covering the 2011–2023 window. Over that period, annual CO2e emissions declined by 95.0%, with the peak observed year showing up to 253K MT CO2e.
Emissions Analysis
PHILLIPS 66 SANTA MARIA REFINERY reports 12K MT CO2e, placing it among smaller reporting facilities in the GHGRP.
Frequently Asked Questions
How much CO2 does PHILLIPS 66 SANTA MARIA REFINERY emit? ▼
PHILLIPS 66 SANTA MARIA REFINERY reported 12K MT CO2e in 2023.
Is PHILLIPS 66 SANTA MARIA REFINERY reducing emissions? ▼
Over 13 reporting years (2011–2023), PHILLIPS 66 SANTA MARIA REFINERY's emissions have decreased by 95%. This suggests meaningful progress in emissions reduction.