TESORO CORPORATION-ANACORTES REFINERY
ANACORTES, WA · SKAGIT COUNTY · NAICS 324110
Data updated May 2026
TESORO CORPORATION-ANACORTES REFINERY sits in the upper third of EPA GHGRP reporters by latest CO₂e (#540 of 8,713 nationally, #5 of 116 in WA).
- National rank #540 of 8,713 GHGRP facilities
- #5 of 116 in WA
- #23 of 83 in Petroleum Product Suppliers
- 4.2% of MARATHON PETROLEUM parent CO₂e
- 2023 mix: 0.4% non-CO₂ (N₂O-led)
- +2.8% since 2011
TESORO CORPORATION-ANACORTES REFINERY vs all U.S. GHGRP facilities
Where this site's latest reported Scope 1 CO₂e sits among every EPA GHGRP reporting facility
1,202,267 540th of 8713 higher than 8,173 of 8,713 facilities
GHGRP facilities, banded by latest reported CO₂e (MT)
Each bar is a band; taller bars hold more facilities. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count and share, and where it sits relative to this entry.
Source EPA Greenhouse Gas Reporting Program · 2023
Facility footprint context
This site accounts for 4.2% of MARATHON PETROLEUM reported parent CO₂e (1.2M MT of 28.8M MT ; #6 of 24 GHGRP facilities under that parent ). Inside the EPA Petroleum Product Suppliers sector it ranks #23 of 83 facilities by latest CO₂e. Shares use GHGRP facility rollups only, not Scope 2/3 or non-reporting sites.
2023 gas mix desk
Of 1.2M MT CO₂e reported for 2023, non-CO₂ gases are 0.4% , led by N₂O at 0.3% . Component shares use this facility's GHGRP CO₂ / CH₄ / N₂O rows for that year (already CO₂e-weighted).
- CO₂
- 99.6%
- 1.2M MT
- CH₄
- 0.2%
- 2K MT
- N₂O
- 0.3%
- 3K MT
High-emitter reporting timeline
| Year | Total CO2e (MT) |
|---|---|
| 2023 | 1,202,267 |
| 2022 | 1,370,882 |
| 2021 | 1,296,106 |
| 2020 | 1,208,552 |
| 2019 | 1,421,372 |
| 2018 | 1,234,174 |
| 2017 | 1,359,656 |
| 2016 | 1,359,988 |
| 2015 | 1,288,787 |
| 2014 | 1,333,624 |
| 2013 | 1,170,238 |
| 2012 | 1,272,523 |
| 2011 | 1,169,075 |
Facility insight: TESORO CORPORATION-ANACORTES REFINERY
TESORO CORPORATION-ANACORTES REFINERY (GHGRP ID 1003904) is a high-volume reporter at 1.2M MT CO₂e in 2023 from ANACORTES, WA (#540 of 8,713 nationally) under Petroleum Product Suppliers (NAICS 324110).
Over 13 years (2011–2023), emissions stayed within a narrow band around 1.2M MT CO₂e (peak 1.4M MT). This facility has filed every year from 2011 to 2023, a complete 13-year record.
Peak year was 2019 at 1.4M MT CO2e; latest 2023 sits 15.4% below that peak (1.2M MT). The largest year-to-year move was 2019→2020 (-15.0%, 213K MT).
Frequently Asked Questions
Where does TESORO CORPORATION-ANACORTES REFINERY rank among U.S. GHGRP facilities? ▼
According to the EPA Greenhouse Gas Reporting Program, TESORO CORPORATION-ANACORTES REFINERY ranks #540 of 8,713 reporting facilities by latest reported CO₂e, and #5 of 116 facilities in WA (same sort as the state facility table). See /methodology#corpus-placement.
What share of GHGRP facilities report less CO₂e than TESORO CORPORATION-ANACORTES REFINERY? ▼
TESORO CORPORATION-ANACORTES REFINERY's 1.2M MT CO₂e is higher than 8,173 of the 8,713 GHGRP facilities with reported emissions (94%), an exact count from the full corpus, not an estimate.
How much CO2 does TESORO CORPORATION-ANACORTES REFINERY emit? ▼
TESORO CORPORATION-ANACORTES REFINERY reported 1.2M MT CO2e in 2023.
What share of MARATHON PETROLEUM does TESORO CORPORATION-ANACORTES REFINERY represent? ▼
TESORO CORPORATION-ANACORTES REFINERY accounts for 4.2% of MARATHON PETROLEUM's reported GHGRP CO₂e (1.2M MT of 28.8M MT), ranking #6 of 24 facilities under that parent.
What is TESORO CORPORATION-ANACORTES REFINERY's 2023 CO₂ / CH₄ / N₂O mix? ▼
In 2023, non-CO₂ gases were 0.4% of reported CO₂e at TESORO CORPORATION-ANACORTES REFINERY, with N₂O the larger non-CO₂ share at 0.3% (CO₂ 99.6%). Shares use the facility's GHGRP gas components for that year.
Where does TESORO CORPORATION-ANACORTES REFINERY rank inside Petroleum Product Suppliers? ▼
Among EPA GHGRP facilities tagged Petroleum Product Suppliers, TESORO CORPORATION-ANACORTES REFINERY ranks #23 of 83 by latest reported CO₂e.
Is TESORO CORPORATION-ANACORTES REFINERY reducing emissions? ▼
Over 13 reporting years (2011–2023), TESORO CORPORATION-ANACORTES REFINERY's emissions have increased by 2.8%. Emissions have remained relatively stable.
Nationwide facilities with similar CO₂e or sector
Peer sets outside WA for a top-third GHGRP emitter: CO₂e totals first, then Petroleum Product Suppliers neighbors.
Similar reported CO₂e
Nearest latest-year facility totals outside WA (1.2M MT here).
Similar Petroleum Product Suppliers CO₂e
Nearest same-sector facility totals outside WA.