SEAWATER INJECTION PLANT
Prudhoe Bay, AK · NORTH SLOPE BOROUGH · NAICS 211120
Data updated May 2026
SEAWATER INJECTION PLANT sits in the upper third of EPA GHGRP reporters by latest CO₂e (#1,594 of 8,713 nationally, #25 of 77 in AK).
- National rank #1,594 of 8,713 GHGRP facilities
- #25 of 77 in AK
- #87 of 2,099 in Petroleum and Natural Gas Systems
- 2.6% of HILCORP ENERGY parent CO₂e
- 2023 mix: 0.1% non-CO₂ (N₂O-led)
- +35.4% since 2011
SEAWATER INJECTION PLANT vs all U.S. GHGRP facilities
Where this site's latest reported Scope 1 CO₂e sits among every EPA GHGRP reporting facility
215,845 1594th of 8713 higher than 7,119 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 2.6% of HILCORP ENERGY reported parent CO₂e (216K MT of 8.3M MT ; #7 of 20 GHGRP facilities under that parent ). Inside the EPA Petroleum and Natural Gas Systems sector it ranks #87 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 216K MT CO₂e reported for 2023, non-CO₂ gases are 0.1% , led by N₂O at 0.1% . Component shares use this facility's GHGRP CO₂ / CH₄ / N₂O rows for that year (already CO₂e-weighted).
- CO₂
- 99.9%
- 216K MT
- CH₄
- 0%
- 91 MT
- N₂O
- 0.1%
- 109 MT
Emissions growth across reporting years
| Year | Total CO2e (MT) |
|---|---|
| 2023 | 215,845 |
| 2022 | 225,637 |
| 2021 | 215,447 |
| 2020 | 187,588 |
| 2019 | 148,964 |
| 2018 | 103,283 |
| 2017 | 118,744 |
| 2016 | 104,192 |
| 2015 | 189,298 |
| 2014 | 170,333 |
| 2013 | 175,025 |
| 2012 | 217,732 |
| 2011 | 159,464 |
Facility insight: SEAWATER INJECTION PLANT
SEAWATER INJECTION PLANT (GHGRP ID 1001801) is a high-volume reporter at 216K MT CO₂e in 2023 from Prudhoe Bay, AK (#1,594 of 8,713 nationally) under Petroleum and Natural Gas Systems (NAICS 211120).
From 2011 to 2023, reported CO₂e rose 35.4% (peak 226K MT). This facility has filed every year from 2011 to 2023, a complete 13-year record.
Peak year was 2022 at 226K MT CO2e; latest 2023 sits 4.3% below that peak (216K MT). The largest year-to-year move was 2015→2016 (-45.0%, 85K MT).
Frequently Asked Questions
Where does SEAWATER INJECTION PLANT rank among U.S. GHGRP facilities? ▼
According to the EPA Greenhouse Gas Reporting Program, SEAWATER INJECTION PLANT ranks #1,594 of 8,713 reporting facilities by latest reported CO₂e, and #25 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 SEAWATER INJECTION PLANT? ▼
SEAWATER INJECTION PLANT's 216K MT CO₂e is higher than 7,119 of the 8,713 GHGRP facilities with reported emissions (82%), an exact count from the full corpus, not an estimate.
How much CO2 does SEAWATER INJECTION PLANT emit? ▼
SEAWATER INJECTION PLANT reported 216K MT CO2e in 2023.
What share of HILCORP ENERGY does SEAWATER INJECTION PLANT represent? ▼
SEAWATER INJECTION PLANT accounts for 2.6% of HILCORP ENERGY's reported GHGRP CO₂e (216K MT of 8.3M MT), ranking #7 of 20 facilities under that parent.
What is SEAWATER INJECTION PLANT's 2023 CO₂ / CH₄ / N₂O mix? ▼
In 2023, non-CO₂ gases were 0.1% of reported CO₂e at SEAWATER INJECTION PLANT, with N₂O the larger non-CO₂ share at 0.1% (CO₂ 99.9%). Shares use the facility's GHGRP gas components for that year.
Where does SEAWATER INJECTION PLANT rank inside Petroleum and Natural Gas Systems? ▼
Among EPA GHGRP facilities tagged Petroleum and Natural Gas Systems, SEAWATER INJECTION PLANT ranks #87 of 2,099 by latest reported CO₂e.
Is SEAWATER INJECTION PLANT reducing emissions? ▼
Over 13 reporting years (2011–2023), SEAWATER INJECTION PLANT's emissions have increased by 35.4%. This may reflect expanded operations or increased production.
Nationwide facilities with similar CO₂e or sector
Peer sets outside AK for a top-third GHGRP emitter: CO₂e totals first, then Petroleum and Natural Gas Systems neighbors.
Similar reported CO₂e
Nearest latest-year facility totals outside AK (216K MT here).
Similar Petroleum and Natural Gas Systems CO₂e
Nearest same-sector facility totals outside AK.