Tyonek
Offshore, AK · KENAI PENINSULA · NAICS 211130
Data updated May 2026
According to the EPA Greenhouse Gas Reporting Program, Tyonek ranks #3,520 of 8,713 U.S. reporting facilities by latest reported CO₂e and #39 of 77 facilities in AK.
- National rank #3,520 of 8,713 GHGRP facilities
- #39 of 77 in AK
- #486 of 2,099 in Petroleum and Natural Gas Systems
- 0.8% of HILCORP ENERGY parent CO₂e
- 2023 mix: 8.9% non-CO₂ (CH₄-led)
- +32.0% since 2011
Tyonek vs all U.S. GHGRP facilities
Where this site's latest reported Scope 1 CO₂e sits among every EPA GHGRP reporting facility
65,951 3520th of 8713 higher than 5,193 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 0.8% of HILCORP ENERGY reported parent CO₂e (66K MT of 8.3M MT ; #11 of 20 GHGRP facilities under that parent ). Inside the EPA Petroleum and Natural Gas Systems sector it ranks #486 of 2,099 facilities by latest CO₂e. Shares use GHGRP facility rollups only, not Scope 2/3 or non-reporting sites.
2023 gas mix desk
Of 66K MT CO₂e reported for 2023, non-CO₂ gases are 8.9% , led by CH₄ at 8.8% . Component shares use this facility's GHGRP CO₂ / CH₄ / N₂O rows for that year (already CO₂e-weighted).
- CO₂
- 91.1%
- 60K MT
- CH₄
- 8.8%
- 6K MT
- N₂O
- 0.1%
- 58 MT
Emissions growth across reporting years
| Year | Total CO2e (MT) |
|---|---|
| 2023 | 65,951 |
| 2022 | 64,192 |
| 2021 | 62,466 |
| 2020 | 52,036 |
| 2019 | 52,216 |
| 2018 | 51,910 |
| 2017 | 52,667 |
| 2016 | 52,108 |
| 2015 | 51,672 |
| 2014 | 52,644 |
| 2013 | 51,897 |
| 2012 | 54,235 |
| 2011 | 49,963 |
Facility insight: Tyonek
Tyonek (EPA GHGRP Facility ID 1005736) reported 66K metric tons of CO2-equivalent in 2023, operating in Offshore, AK within KENAI PENINSULA. Among GHGRP reporters it ranks #3,520 of 8,713 nationally by latest CO₂e and #39 of 77 in AK. The site is classified under Petroleum and Natural Gas Systems with NAICS code 211130.
From 2011 to 2023, reported CO₂e rose 32.0% (peak 66K MT). This facility has filed every year from 2011 to 2023, a complete 13-year record.
Frequently Asked Questions
Where does Tyonek rank among U.S. GHGRP facilities? ▼
According to the EPA Greenhouse Gas Reporting Program, Tyonek ranks #3,520 of 8,713 reporting facilities by latest reported CO₂e, and #39 of 77 facilities in AK (same sort as the state facility table). See /methodology#corpus-placement.
What share of GHGRP facilities report less CO₂e than Tyonek? ▼
Tyonek's 66K MT CO₂e is higher than 5,193 of the 8,713 GHGRP facilities with reported emissions (60%), an exact count from the full corpus, not an estimate.
How much CO2 does Tyonek emit? ▼
Tyonek reported 66K MT CO2e in 2023.
What share of HILCORP ENERGY does Tyonek represent? ▼
Tyonek accounts for 0.8% of HILCORP ENERGY's reported GHGRP CO₂e (66K MT of 8.3M MT), ranking #11 of 20 facilities under that parent.
What is Tyonek's 2023 CO₂ / CH₄ / N₂O mix? ▼
In 2023, non-CO₂ gases were 8.9% of reported CO₂e at Tyonek, with CH₄ the larger non-CO₂ share at 8.8% (CO₂ 91.1%). Shares use the facility's GHGRP gas components for that year.
Where does Tyonek rank inside Petroleum and Natural Gas Systems? ▼
Among EPA GHGRP facilities tagged Petroleum and Natural Gas Systems, Tyonek ranks #486 of 2,099 by latest reported CO₂e.
Is Tyonek reducing emissions? ▼
Over 13 reporting years (2011–2023), Tyonek's emissions have increased by 32%. This may reflect expanded operations or increased production.
Nationwide facilities with similar CO₂e or sector
Two GHGRP-derived peer sets for Tyonek, both outside AK so the neighborhoods are not state-geo containment.
Similar reported CO₂e
Nearest latest-year facility totals outside AK (66K MT here).
Similar Petroleum and Natural Gas Systems CO₂e
Nearest same-sector facility totals outside AK.