| 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 | Top 3 Parent Companies (sorted by) |
|---|---|---|---|---|---|---|
| New Hampshire | 0.9 | 0.0 | 0.9 | 0.0 | 5 | Algonquin Power & Utilities, Irving Oil, Brookfield Asset Management |
| Iowa | 16.7 | 0.0 | 16.7 | 0.0 | 15 | Berkshire Hathaway, Alliant Energy, Black Hills Corp. |
| Nebraska | 6.0 | 0.0 | 6.0 | 0.0 | 7 | Black Hills Corp., Metropolitan Utilities District, City of Fremont, NE |
| Washington | 99.9 | 82.4 | 17.4 | 0.0 | 14 | BP, HF Sinclair Corporation, Marathon Petroleum |
| Indiana | 172.6 | 62.8 | 65.9 | 43.9 | 48 | BP, NiSource, Peabody Energy |
| Vermont | 0.7 | 0.0 | 0.7 | 0.0 | 1 | CAISSE DE DEPOT ET PLACEMENT DU QUEBEC |
| Ohio | 134.3 | 73.4 | 54.7 | 6.2 | 42 | Cenovus Energy, MPLX LP, PBF Energy |
| Mississippi | 63.4 | 50.1 | 0.3 | 4.1 | 15 | Chevron, Denbury Inc., Ergon |
| California | 316.7 | 224.8 | 92.0 | 0.0 | 46 | Chevron, Marathon Petroleum, Sempra Energy |
| South Dakota | 0.2 | 0.0 | 0.2 | 0.0 | 3 | City of Watertown, SD, Poet LLC |
| Pennsylvania | 173.4 | 35.5 | 46.7 | 91.2 | 162 | Consol Energy, Delta Air Lines, UGI Corp. |
| Arkansas | 12.1 | 9.9 | 2.2 | 0.0 | 7 | Delek, Black Hills Corp., Martin Midstream Partners |
| South Carolina | 5.6 | 0.0 | 5.6 | 0.0 | 11 | Dominion Energy, YORK COUNTY NATURAL GAS AUTHORITY, FORT HILL NATURAL GAS AUTHORITY |
| North Carolina | 38.9 | 0.0 | 38.9 | 0.0 | 19 | Duke Energy, Dominion Energy, City of Kings Mountain, NC |
| Virgin Islands of the U.S. | 3.4 | 3.4 | 0.0 | 0.0 | 1 | EIG Global Energy Partners |
| Florida | 12.9 | 0.0 | 12.9 | 0.0 | 23 | Emera, City of Gainesville, FL, NextEra Energy |
| Virginia | 41.5 | 0.0 | 16.9 | 24.6 | 55 | Energy and Minerals Group, AltaGas, Alpha Metallurgical Resources |
| Maryland | 7.9 | 0.0 | 5.1 | 2.8 | 20 | Exelon, Angela Svonavec, Quintana Capital Group GP Ltd |
| Arizona | 2.4 | 0.0 | 2.4 | 0.0 | 2 | Fortis, City of Mesa, AZ |
| Kansas | 93.0 | 59.0 | 34.0 | 0.0 | 22 | HF Sinclair Corporation, Oneok, CHS Inc. |
| New Mexico | 39.9 | 13.3 | 4.6 | 18.6 | 19 | HF Sinclair Corporation, Peabody Energy, Navajo Transitional Energy Company LLC |
| Connecticut | 10.6 | 0.0 | 10.6 | 0.0 | 9 | Iberdrola, EverSource Energy, City of Norwich, CT |
| Puerto Rico | 0.0 | 0.0 | 0.0 | 0.0 | 1 | Ingersoll Rand |
| West Virginia | 198.7 | 3.0 | 15.6 | 180.1 | 183 | Invesco, Alpha Metallurgical Resources, Alliance Resource Partners |
| Colorado | 73.2 | 10.6 | 23.9 | 24.0 | 34 | Kinder Morgan, Xcel Energy, Suncor Energy |
| Minnesota | 88.5 | 66.0 | 22.5 | 0.0 | 27 | Koch Industries, Marathon Petroleum, CenterPoint Energy |
| Kentucky | 102.3 | 37.8 | 5.0 | 59.5 | 154 | Marathon Petroleum, Alliance Resource Partners, Invesco |
| Alaska | 15.6 | 10.8 | 3.0 | 1.8 | 9 | Marathon Petroleum, Arctic Slope Regional Corp., AltaGas |
| Michigan | 64.5 | 21.9 | 42.6 | 0.0 | 17 | Marathon Petroleum, CMS Energy, DTE 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 |
| Idaho | 4.0 | 0.0 | 4.0 | 0.0 | 1 | MDU Resources |
| North Dakota | 57.4 | 10.2 | 12.9 | 33.8 | 23 | NACCO Industries, Marathon Petroleum, Allete |
| Rhode Island | 2.0 | 0.0 | 2.0 | 0.0 | 1 | National Grid |
| New York | 61.0 | 0.0 | 61.0 | 0.0 | 25 | National Grid, Consolidated Edison, Iberdrola |
| Massachusetts | 15.1 | 0.0 | 15.1 | 0.0 | 12 | National Grid, EverSource Energy, Iberdrola |
| Montana | 88.8 | 30.8 | 5.5 | 52.4 | 17 | Navajo Transitional Energy Company LLC, Global Mining Group LLC, Westmoreland Mining LLC |
| Oregon | 6.2 | 0.0 | 6.2 | 0.0 | 4 | Northwest Natural Holding Co, Alto Ingredients, Incitec Pivot |
| Hawaii | 12.2 | 12.1 | 0.2 | 0.0 | 9 | Par Pacific Holdings, Macquarie, One Rock Capital Partners |
| Delaware | 15.4 | 13.0 | 2.3 | 0.0 | 7 | PBF Energy, Exelon, Chesapeake Utilities |
| Wyoming | 425.9 | 15.8 | 3.3 | 406.8 | 34 | Peabody Energy, Arch Resources, Navajo Transitional Energy Company LLC |
| Oklahoma | 91.5 | 66.2 | 25.3 | 0.0 | 18 | Phillips 66, HF Sinclair Corporation, Oneok |
| New Jersey | 72.2 | 45.4 | 26.8 | 0.0 | 27 | Phillips 66, Public Service Enterprise, PBF Energy |
| Georgia | 15.5 | 0.0 | 15.5 | 0.0 | 36 | Southern Company, Algonquin Power & Utilities, City of Dalton, GA |
| Nevada | 12.6 | 0.2 | 12.5 | 0.0 | 6 | Southwest Gas, Berkshire Hathaway, Sky Quarry |
| 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 |
| Maine | 0.3 | 0.0 | 0.3 | 0.0 | 1 | Ullico Inc. |
| Tennessee | 32.4 | 22.8 | 9.6 | 0.0 | 40 | Valero Energy, City of Memphis, TN, Southern Company |
| Texas | 1,129.4 | 759.1 | 348.3 | 22.0 | 160 | Valero Energy, Exxon Mobil, Enterprise Products Partners |
| Alabama | 61.3 | 22.3 | 18.3 | 20.7 | 58 | Warrior Met Coal, Hunt Consolidated, Shell PLC |
| Wisconsin | 27.6 | 0.0 | 27.6 | 0.0 | 26 | WEC Energy Group, Alliant Energy, MGE ENERGY 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.