Greenhouse 100 Suppliers State List (2023 Report, Based on 2021 Data)
(Links on state names lead to individual state displays. Click on column headers to re-sort table)
Sorted by: Top 3 Parent Companies, then by CO2 from nat. gas (mmt) descending, then by 2021 Emissions from Fossil Fuel Supplies (CO2 million metric tons) descending
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
Explanatory notes (For details, see the technical notes ).
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.
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