| State Name | 2021 Emissions from Fossil Fuel Supplies (CO2 million metric tons) | CO2 from oil (mmt) | CO2 from nat. gas (mmt) (sorted by) | CO2 from coal (mmt) | Number of Facilities | Top 3 Parent Companies |
|---|---|---|---|---|---|---|
| Texas | 1,129.4 | 759.1 | 348.3 | 22.0 | 160 | Valero Energy, Exxon Mobil, Enterprise Products Partners |
| California | 316.7 | 224.8 | 92.0 | 0.0 | 46 | Chevron, Marathon Petroleum, Sempra Energy |
| Indiana | 172.6 | 62.8 | 65.9 | 43.9 | 48 | BP, NiSource, Peabody Energy |
| New York | 61.0 | 0.0 | 61.0 | 0.0 | 25 | National Grid, Consolidated Edison, Iberdrola |
| Ohio | 134.3 | 73.4 | 54.7 | 6.2 | 42 | Cenovus Energy, MPLX LP, PBF Energy |
| Illinois | 277.1 | 143.1 | 51.6 | 82.5 | 40 | Marathon Petroleum, Foresight Energy, Exxon Mobil |
| Pennsylvania | 173.4 | 35.5 | 46.7 | 91.2 | 162 | Consol Energy, Delta Air Lines, UGI Corp. |
| Michigan | 64.5 | 21.9 | 42.6 | 0.0 | 17 | Marathon Petroleum, CMS Energy, DTE Energy |
| North Carolina | 38.9 | 0.0 | 38.9 | 0.0 | 19 | Duke Energy, Dominion Energy, City of Kings Mountain, NC |
| Kansas | 93.0 | 59.0 | 34.0 | 0.0 | 22 | HF Sinclair Corporation, Oneok, CHS Inc. |
| Louisiana | 405.8 | 373.0 | 32.4 | 0.4 | 41 | Marathon Petroleum, Exxon Mobil, PDVSA (Petroleos de Venezuela S.A.) |
| Wisconsin | 27.6 | 0.0 | 27.6 | 0.0 | 26 | WEC Energy Group, Alliant Energy, MGE ENERGY INC |
| New Jersey | 72.2 | 45.4 | 26.8 | 0.0 | 27 | Phillips 66, Public Service Enterprise, PBF Energy |
| Oklahoma | 91.5 | 66.2 | 25.3 | 0.0 | 18 | Phillips 66, HF Sinclair Corporation, Oneok |
| 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 |
| Alabama | 61.3 | 22.3 | 18.3 | 20.7 | 58 | Warrior Met Coal, Hunt Consolidated, Shell PLC |
| Washington | 99.9 | 82.4 | 17.4 | 0.0 | 14 | BP, HF Sinclair Corporation, Marathon Petroleum |
| Virginia | 41.5 | 0.0 | 16.9 | 24.6 | 55 | Energy and Minerals Group, AltaGas, Alpha Metallurgical Resources |
| Iowa | 16.7 | 0.0 | 16.7 | 0.0 | 15 | Berkshire Hathaway, Alliant Energy, Black Hills Corp. |
| West Virginia | 198.7 | 3.0 | 15.6 | 180.1 | 183 | Invesco, Alpha Metallurgical Resources, Alliance Resource Partners |
| Georgia | 15.5 | 0.0 | 15.5 | 0.0 | 36 | Southern Company, Algonquin Power & Utilities, City of Dalton, GA |
| Massachusetts | 15.1 | 0.0 | 15.1 | 0.0 | 12 | National Grid, EverSource Energy, Iberdrola |
| North Dakota | 57.4 | 10.2 | 12.9 | 33.8 | 23 | NACCO Industries, Marathon Petroleum, Allete |
| Florida | 12.9 | 0.0 | 12.9 | 0.0 | 23 | Emera, City of Gainesville, FL, NextEra Energy |
| Nevada | 12.6 | 0.2 | 12.5 | 0.0 | 6 | Southwest Gas, Berkshire Hathaway, Sky Quarry |
| Utah | 70.5 | 30.9 | 11.8 | 27.8 | 16 | Trafigura Group, Dominion Energy, Chevron |
| Missouri | 11.8 | 0.0 | 11.7 | 0.1 | 16 | Spire Inc., Ameren, Algonquin Power & Utilities |
| Connecticut | 10.6 | 0.0 | 10.6 | 0.0 | 9 | Iberdrola, EverSource Energy, City of Norwich, CT |
| Tennessee | 32.4 | 22.8 | 9.6 | 0.0 | 40 | Valero Energy, City of Memphis, TN, Southern Company |
| Oregon | 6.2 | 0.0 | 6.2 | 0.0 | 4 | Northwest Natural Holding Co, Alto Ingredients, Incitec Pivot |
| Nebraska | 6.0 | 0.0 | 6.0 | 0.0 | 7 | Black Hills Corp., Metropolitan Utilities District, City of Fremont, NE |
| South Carolina | 5.6 | 0.0 | 5.6 | 0.0 | 11 | Dominion Energy, YORK COUNTY NATURAL GAS AUTHORITY, FORT HILL NATURAL GAS AUTHORITY |
| Montana | 88.8 | 30.8 | 5.5 | 52.4 | 17 | Navajo Transitional Energy Company LLC, Global Mining Group LLC, Westmoreland Mining LLC |
| Maryland | 7.9 | 0.0 | 5.1 | 2.8 | 20 | Exelon, Angela Svonavec, Quintana Capital Group GP Ltd |
| Kentucky | 102.3 | 37.8 | 5.0 | 59.5 | 154 | Marathon Petroleum, Alliance Resource Partners, Invesco |
| New Mexico | 39.9 | 13.3 | 4.6 | 18.6 | 19 | HF Sinclair Corporation, Peabody Energy, Navajo Transitional Energy Company LLC |
| Idaho | 4.0 | 0.0 | 4.0 | 0.0 | 1 | MDU Resources |
| Wyoming | 425.9 | 15.8 | 3.3 | 406.8 | 34 | Peabody Energy, Arch Resources, Navajo Transitional Energy Company LLC |
| Alaska | 15.6 | 10.8 | 3.0 | 1.8 | 9 | Marathon Petroleum, Arctic Slope Regional Corp., AltaGas |
| Arizona | 2.4 | 0.0 | 2.4 | 0.0 | 2 | Fortis, City of Mesa, AZ |
| Delaware | 15.4 | 13.0 | 2.3 | 0.0 | 7 | PBF Energy, Exelon, Chesapeake Utilities |
| Arkansas | 12.1 | 9.9 | 2.2 | 0.0 | 7 | Delek, Black Hills Corp., Martin Midstream Partners |
| Rhode Island | 2.0 | 0.0 | 2.0 | 0.0 | 1 | National Grid |
| New Hampshire | 0.9 | 0.0 | 0.9 | 0.0 | 5 | Algonquin Power & Utilities, Irving Oil, Brookfield Asset Management |
| Vermont | 0.7 | 0.0 | 0.7 | 0.0 | 1 | CAISSE DE DEPOT ET PLACEMENT DU QUEBEC |
| Mississippi | 63.4 | 50.1 | 0.3 | 4.1 | 15 | Chevron, Denbury Inc., Ergon |
| Maine | 0.3 | 0.0 | 0.3 | 0.0 | 1 | Ullico Inc. |
| South Dakota | 0.2 | 0.0 | 0.2 | 0.0 | 3 | City of Watertown, SD, Poet LLC |
| Hawaii | 12.2 | 12.1 | 0.2 | 0.0 | 9 | Par Pacific Holdings, Macquarie, One Rock Capital Partners |
| 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 |
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.