West Elk Mine
Somerset, CO · GUNNISON COUNTY · NAICS 212115
Data updated May 2026
West Elk Mine sits in the upper third of EPA GHGRP reporters by latest CO₂e (#1,329 of 8,713 nationally, #22 of 191 in CO).
- National rank #1,329 of 8,713 GHGRP facilities
- #22 of 191 in CO
- #59 of 1,599 in Other
- 10.8% of ARCH RESOURCES parent CO₂e
- 2023 mix: 98.1% non-CO₂ (CH₄-led)
- -75.4% since 2011
West Elk Mine vs all U.S. GHGRP facilities
Where this site's latest reported Scope 1 CO₂e sits among every EPA GHGRP reporting facility
304,967 1329th of 8713 higher than 7,384 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 10.8% of ARCH RESOURCES reported parent CO₂e (305K MT of 2.8M MT ; #4 of 5 GHGRP facilities under that parent ). Inside the EPA Other sector it ranks #59 of 1,599 facilities by latest CO₂e. Shares use GHGRP facility rollups only, not Scope 2/3 or non-reporting sites.
2023 gas mix desk
Of 305K MT CO₂e reported for 2023, non-CO₂ gases are 98.1% , led by CH₄ at 98.1% . Component shares use this facility's GHGRP CO₂ / CH₄ / N₂O rows for that year (already CO₂e-weighted).
- CO₂
- 1.9%
- 6K MT
- CH₄
- 98.1%
- 299K MT
- N₂O
- 0%
- 6 MT
Emissions decline across reporting years
| Year | Total CO2e (MT) |
|---|---|
| 2023 | 304,967 |
| 2022 | 144,811 |
| 2021 | 254,419 |
| 2020 | 321,240 |
| 2019 | 418,799 |
| 2018 | 296,827 |
| 2017 | 447,143 |
| 2016 | 408,471 |
| 2015 | 492,398 |
| 2014 | 661,218 |
| 2013 | 762,865 |
| 2012 | 937,228 |
| 2011 | 1,237,980 |
Facility insight: West Elk Mine
West Elk Mine (GHGRP ID 1010310) is a high-volume reporter at 305K MT CO₂e in 2023 from Somerset, CO (#1,329 of 8,713 nationally) under Other (NAICS 212115).
Across 2011–2023, annual CO₂e fell 75.4%; peak load was 1.2M MT in 2011. This facility has filed every year from 2011 to 2023, a complete 13-year record.
Peak year was 2011 at 1.2M MT CO2e; latest 2023 sits 75.4% below that peak (305K MT). The largest year-to-year move was 2011→2012 (-24.3%, 301K MT).
Frequently Asked Questions
Where does West Elk Mine rank among U.S. GHGRP facilities? ▼
According to the EPA Greenhouse Gas Reporting Program, West Elk Mine ranks #1,329 of 8,713 reporting facilities by latest reported CO₂e, and #22 of 191 facilities in CO (same sort as the state facility table). See /methodology#corpus-placement.
What share of GHGRP facilities report less CO₂e than West Elk Mine? ▼
West Elk Mine's 305K MT CO₂e is higher than 7,384 of the 8,713 GHGRP facilities with reported emissions (85%), an exact count from the full corpus, not an estimate.
How much CO2 does West Elk Mine emit? ▼
West Elk Mine reported 305K MT CO2e in 2023.
What share of ARCH RESOURCES does West Elk Mine represent? ▼
West Elk Mine accounts for 10.8% of ARCH RESOURCES's reported GHGRP CO₂e (305K MT of 2.8M MT), ranking #4 of 5 facilities under that parent.
What is West Elk Mine's 2023 CO₂ / CH₄ / N₂O mix? ▼
In 2023, non-CO₂ gases were 98.1% of reported CO₂e at West Elk Mine, with CH₄ the larger non-CO₂ share at 98.1% (CO₂ 1.9%). Shares use the facility's GHGRP gas components for that year.
Where does West Elk Mine rank inside Other? ▼
Among EPA GHGRP facilities tagged Other, West Elk Mine ranks #59 of 1,599 by latest reported CO₂e.
Is West Elk Mine reducing emissions? ▼
Over 13 reporting years (2011–2023), West Elk Mine's emissions have decreased by 75.4%. This suggests meaningful progress in emissions reduction.
Nationwide facilities with similar CO₂e or sector
Peer sets outside CO for a top-third GHGRP emitter: CO₂e totals first, then Other neighbors.
Similar reported CO₂e
Nearest latest-year facility totals outside CO (305K MT here).
Similar Other CO₂e
Nearest same-sector facility totals outside CO.