Top 100 Companies by Methane (CH4) Emissions
Methane (CH4) is a potent greenhouse gas with a global warming potential 28-36 times that of carbon dioxide over a 100-year horizon. This ranking aggregates reported facility-level CH4 emissions from EPA GHGRP, attributed to parent companies. Figures reflect the current EPA dataset and update automatically as EPA publishes revisions.Source: EPA GHGRP, https://www.epa.gov/ghgrp
Top 10 corporate methane emitters
| Rank | Company | Cumulative CH4 (MT) | Facilities | Industry | Latest Year |
|---|---|---|---|---|---|
| 1 | WASTE MANAGEMENT | 11.48M | 225 | Waste | 2023 |
| 2 | REPUBLIC SERVICES | 10.71M | 177 | Waste | 2023 |
| 3 | CONSOL ENERGY | 6.48M | 4 | Other | 2023 |
| 4 | AMERICAN CONSOLIDATED NATURAL RESOURCES | 6.22M | 6 | Other | 2023 |
| 5 | WASTE CONNECTIONS US | 3.93M | 43 | Waste | 2023 |
| 6 | ARCH RESOURCES | 2.82M | 5 | Other | 2023 |
| 7 | GFL ENVIRONMENTAL HOLDINGS (US) | 2.45M | 30 | Waste | 2023 |
| 8 | ALLIANCE HOLDINGS GP | 2.26M | 5 | Other | 2023 |
| 9 | RUMPKE CONSOLIDATED COS | 1.69M | 9 | Waste | 2023 |
| 10 | ENERGY TRANSFER | 1.65M | 142 | Petroleum and Natural Gas Systems | 2023 |
Top 100 ranking (full list)
Show all 100 companies
Methodology
Cumulative CH4 emissions are summed by parent company across all reporting years for facilities under the EPA Greenhouse Gas Reporting Program. Parent attribution follows how EPA links each reporting facility to its parent company. Totals reflect direct CH4 reports in metric tons, not CO2e conversions.
Caveats and Limitations
GHGRP captures only facilities emitting over 25,000 metric tons CO2e annually, under-representing small operators and potentially missing 30-50% of total U.S. CH4 per independent studies. Parent attribution involves estimation for subsidiaries and may double-count where mergers create overlapping ownership. Data lags one year. Biogenic CH4 from landfills may overestimate climate impact if captured. Scope 3 emissions excluded.
Every figure on PlainCarbon is rendered directly from EPA Greenhouse Gas Reporting Program (GHGRP) data, no number is typed in by an editor. This page draws directly on the EPA Greenhouse Gas Reporting Program (GHGRP), no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.