| State Name | 2021 Emissions from Fossil Fuel Supplies (CO2 million metric tons) | CO2 from oil (mmt) | CO2 from nat. gas (mmt) | CO2 from coal (mmt) | Number of Facilities (sorted by) | Top 3 Parent Companies |
|---|---|---|---|---|---|---|
| West Virginia | 198.7 | 3.0 | 15.6 | 180.1 | 183 | Invesco, Alpha Metallurgical Resources, Alliance Resource Partners |
| Pennsylvania | 173.4 | 35.5 | 46.7 | 91.2 | 162 | Consol Energy, Delta Air Lines, UGI Corp. |
| Texas | 1,129.4 | 759.1 | 348.3 | 22.0 | 160 | Valero Energy, Exxon Mobil, Enterprise Products Partners |
| Kentucky | 102.3 | 37.8 | 5.0 | 59.5 | 154 | Marathon Petroleum, Alliance Resource Partners, Invesco |
| Alabama | 61.3 | 22.3 | 18.3 | 20.7 | 58 | Warrior Met Coal, Hunt Consolidated, Shell PLC |
| Virginia | 41.5 | 0.0 | 16.9 | 24.6 | 55 | Energy and Minerals Group, AltaGas, Alpha Metallurgical Resources |
| Indiana | 172.6 | 62.8 | 65.9 | 43.9 | 48 | BP, NiSource, Peabody Energy |
| California | 316.7 | 224.8 | 92.0 | 0.0 | 46 | Chevron, Marathon Petroleum, Sempra Energy |
| Ohio | 134.3 | 73.4 | 54.7 | 6.2 | 42 | Cenovus Energy, MPLX LP, PBF Energy |
| Louisiana | 405.8 | 373.0 | 32.4 | 0.4 | 41 | Marathon Petroleum, Exxon Mobil, PDVSA (Petroleos de Venezuela S.A.) |
| Illinois | 277.1 | 143.1 | 51.6 | 82.5 | 40 | Marathon Petroleum, Foresight Energy, Exxon Mobil |
| Tennessee | 32.4 | 22.8 | 9.6 | 0.0 | 40 | Valero Energy, City of Memphis, TN, Southern Company |
| Georgia | 15.5 | 0.0 | 15.5 | 0.0 | 36 | Southern Company, Algonquin Power & Utilities, City of Dalton, GA |
| Colorado | 73.2 | 10.6 | 23.9 | 24.0 | 34 | Kinder Morgan, Xcel Energy, Suncor Energy |
| Wyoming | 425.9 | 15.8 | 3.3 | 406.8 | 34 | Peabody Energy, Arch Resources, Navajo Transitional Energy Company LLC |
| Minnesota | 88.5 | 66.0 | 22.5 | 0.0 | 27 | Koch Industries, Marathon Petroleum, CenterPoint Energy |
| New Jersey | 72.2 | 45.4 | 26.8 | 0.0 | 27 | Phillips 66, Public Service Enterprise, PBF Energy |
| Wisconsin | 27.6 | 0.0 | 27.6 | 0.0 | 26 | WEC Energy Group, Alliant Energy, MGE ENERGY INC |
| New York | 61.0 | 0.0 | 61.0 | 0.0 | 25 | National Grid, Consolidated Edison, Iberdrola |
| Florida | 12.9 | 0.0 | 12.9 | 0.0 | 23 | Emera, City of Gainesville, FL, NextEra Energy |
| North Dakota | 57.4 | 10.2 | 12.9 | 33.8 | 23 | NACCO Industries, Marathon Petroleum, Allete |
| Kansas | 93.0 | 59.0 | 34.0 | 0.0 | 22 | HF Sinclair Corporation, Oneok, CHS Inc. |
| Maryland | 7.9 | 0.0 | 5.1 | 2.8 | 20 | Exelon, Angela Svonavec, Quintana Capital Group GP Ltd |
| North Carolina | 38.9 | 0.0 | 38.9 | 0.0 | 19 | Duke Energy, Dominion Energy, City of Kings Mountain, NC |
| New Mexico | 39.9 | 13.3 | 4.6 | 18.6 | 19 | HF Sinclair Corporation, Peabody Energy, Navajo Transitional Energy Company LLC |
| Oklahoma | 91.5 | 66.2 | 25.3 | 0.0 | 18 | Phillips 66, HF Sinclair Corporation, Oneok |
| Michigan | 64.5 | 21.9 | 42.6 | 0.0 | 17 | Marathon Petroleum, CMS Energy, DTE Energy |
| Montana | 88.8 | 30.8 | 5.5 | 52.4 | 17 | Navajo Transitional Energy Company LLC, Global Mining Group LLC, Westmoreland Mining LLC |
| Missouri | 11.8 | 0.0 | 11.7 | 0.1 | 16 | Spire Inc., Ameren, Algonquin Power & Utilities |
| Utah | 70.5 | 30.9 | 11.8 | 27.8 | 16 | Trafigura Group, Dominion Energy, Chevron |
| Iowa | 16.7 | 0.0 | 16.7 | 0.0 | 15 | Berkshire Hathaway, Alliant Energy, Black Hills Corp. |
| Mississippi | 63.4 | 50.1 | 0.3 | 4.1 | 15 | Chevron, Denbury Inc., Ergon |
| Washington | 99.9 | 82.4 | 17.4 | 0.0 | 14 | BP, HF Sinclair Corporation, Marathon Petroleum |
| Massachusetts | 15.1 | 0.0 | 15.1 | 0.0 | 12 | National Grid, EverSource Energy, Iberdrola |
| South Carolina | 5.6 | 0.0 | 5.6 | 0.0 | 11 | Dominion Energy, YORK COUNTY NATURAL GAS AUTHORITY, FORT HILL NATURAL GAS AUTHORITY |
| Connecticut | 10.6 | 0.0 | 10.6 | 0.0 | 9 | Iberdrola, EverSource Energy, City of Norwich, CT |
| Alaska | 15.6 | 10.8 | 3.0 | 1.8 | 9 | Marathon Petroleum, Arctic Slope Regional Corp., AltaGas |
| Hawaii | 12.2 | 12.1 | 0.2 | 0.0 | 9 | Par Pacific Holdings, Macquarie, One Rock Capital Partners |
| Nebraska | 6.0 | 0.0 | 6.0 | 0.0 | 7 | Black Hills Corp., Metropolitan Utilities District, City of Fremont, NE |
| Arkansas | 12.1 | 9.9 | 2.2 | 0.0 | 7 | Delek, Black Hills Corp., Martin Midstream Partners |
| Delaware | 15.4 | 13.0 | 2.3 | 0.0 | 7 | PBF Energy, Exelon, Chesapeake Utilities |
| Nevada | 12.6 | 0.2 | 12.5 | 0.0 | 6 | Southwest Gas, Berkshire Hathaway, Sky Quarry |
| New Hampshire | 0.9 | 0.0 | 0.9 | 0.0 | 5 | Algonquin Power & Utilities, Irving Oil, Brookfield Asset Management |
| Oregon | 6.2 | 0.0 | 6.2 | 0.0 | 4 | Northwest Natural Holding Co, Alto Ingredients, Incitec Pivot |
| South Dakota | 0.2 | 0.0 | 0.2 | 0.0 | 3 | City of Watertown, SD, Poet LLC |
| Arizona | 2.4 | 0.0 | 2.4 | 0.0 | 2 | Fortis, City of Mesa, AZ |
| Vermont | 0.7 | 0.0 | 0.7 | 0.0 | 1 | CAISSE DE DEPOT ET PLACEMENT DU QUEBEC |
| Virgin Islands of the U.S. | 3.4 | 3.4 | 0.0 | 0.0 | 1 | EIG Global Energy Partners |
| Puerto Rico | 0.0 | 0.0 | 0.0 | 0.0 | 1 | Ingersoll Rand |
| Idaho | 4.0 | 0.0 | 4.0 | 0.0 | 1 | MDU Resources |
| Rhode Island | 2.0 | 0.0 | 2.0 | 0.0 | 1 | National Grid |
| Maine | 0.3 | 0.0 | 0.3 | 0.0 | 1 | Ullico Inc. |
This edition of the Greenhouse 100 Suppliers ranks companies by C02-equivalent greenhouse gas emissions from their supply of products in 2021 that result in GHG emissions when the products are released, combusted, or oxidized. This differs from the Greenhouse 100 Polluters because the Greenhouse 100 Polluters ranks companies by direct emissions of GHGs from large facilities. It includes both data from EPA's GHGRP Suppliers database and a PERI database of coal mines based on EIA and MSHA data. Petroleum exports are not included as supplier amounts (we assume that they were also reported as production if they were produced in the US.)
Important: EPA treats some quantities of CO2 released from suppliers as confidential where the supplying facility makes only one product and its amount of production could be calculated from its CO2 emissions. PERI has no way to determine the values of these confidential amounts and has treated them as zeroes. Users of this list should be aware that data derived from EPA's GHGRP Suppliers database are a lower bound and may actually be larger than shown.
The links from each parent name or state lead to an application that gives detailed facility information. You can also search for companies not on the Greenhouse 100 Suppliers Index. For more information on the data, see the technical notes.