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: 2021 Emissions from Fossil Fuel Supplies (CO2 million metric tons) descending

State Name	2021 Emissions from Fossil Fuel Supplies (CO2 million metric tons) (sorted by)	CO2 from oil (mmt)	CO2 from nat. gas (mmt)	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
Wyoming	425.9	15.8	3.3	406.8	34	Peabody Energy, Arch Resources, Navajo Transitional Energy Company LLC
Louisiana	405.8	373.0	32.4	0.4	41	Marathon Petroleum, Exxon Mobil, PDVSA (Petroleos de Venezuela S.A.)
California	316.7	224.8	92.0	0.0	46	Chevron, Marathon Petroleum, Sempra Energy
Illinois	277.1	143.1	51.6	82.5	40	Marathon Petroleum, Foresight Energy, Exxon Mobil
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.
Indiana	172.6	62.8	65.9	43.9	48	BP, NiSource, Peabody Energy
Ohio	134.3	73.4	54.7	6.2	42	Cenovus Energy, MPLX LP, PBF Energy
Kentucky	102.3	37.8	5.0	59.5	154	Marathon Petroleum, Alliance Resource Partners, Invesco
Washington	99.9	82.4	17.4	0.0	14	BP, HF Sinclair Corporation, Marathon Petroleum
Kansas	93.0	59.0	34.0	0.0	22	HF Sinclair Corporation, Oneok, CHS Inc.
Oklahoma	91.5	66.2	25.3	0.0	18	Phillips 66, HF Sinclair Corporation, Oneok
Montana	88.8	30.8	5.5	52.4	17	Navajo Transitional Energy Company LLC, Global Mining Group LLC, Westmoreland Mining LLC
Minnesota	88.5	66.0	22.5	0.0	27	Koch Industries, Marathon Petroleum, CenterPoint Energy
Colorado	73.2	10.6	23.9	24.0	34	Kinder Morgan, Xcel Energy, Suncor Energy
New Jersey	72.2	45.4	26.8	0.0	27	Phillips 66, Public Service Enterprise, PBF Energy
Utah	70.5	30.9	11.8	27.8	16	Trafigura Group, Dominion Energy, Chevron
Michigan	64.5	21.9	42.6	0.0	17	Marathon Petroleum, CMS Energy, DTE Energy
Mississippi	63.4	50.1	0.3	4.1	15	Chevron, Denbury Inc., Ergon
Alabama	61.3	22.3	18.3	20.7	58	Warrior Met Coal, Hunt Consolidated, Shell PLC
New York	61.0	0.0	61.0	0.0	25	National Grid, Consolidated Edison, Iberdrola
North Dakota	57.4	10.2	12.9	33.8	23	NACCO Industries, Marathon Petroleum, Allete
Virginia	41.5	0.0	16.9	24.6	55	Energy and Minerals Group, AltaGas, Alpha Metallurgical Resources
New Mexico	39.9	13.3	4.6	18.6	19	HF Sinclair Corporation, Peabody Energy, Navajo Transitional Energy Company LLC
North Carolina	38.9	0.0	38.9	0.0	19	Duke Energy, Dominion Energy, City of Kings Mountain, NC
Tennessee	32.4	22.8	9.6	0.0	40	Valero Energy, City of Memphis, TN, Southern Company
Wisconsin	27.6	0.0	27.6	0.0	26	WEC Energy Group, Alliant Energy, MGE ENERGY INC
Iowa	16.7	0.0	16.7	0.0	15	Berkshire Hathaway, Alliant Energy, Black Hills Corp.
Alaska	15.6	10.8	3.0	1.8	9	Marathon Petroleum, Arctic Slope Regional Corp., AltaGas
Georgia	15.5	0.0	15.5	0.0	36	Southern Company, Algonquin Power & Utilities, City of Dalton, GA
Delaware	15.4	13.0	2.3	0.0	7	PBF Energy, Exelon, Chesapeake Utilities
Massachusetts	15.1	0.0	15.1	0.0	12	National Grid, EverSource Energy, Iberdrola
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
Hawaii	12.2	12.1	0.2	0.0	9	Par Pacific Holdings, Macquarie, One Rock Capital Partners
Arkansas	12.1	9.9	2.2	0.0	7	Delek, Black Hills Corp., Martin Midstream Partners
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
Maryland	7.9	0.0	5.1	2.8	20	Exelon, Angela Svonavec, Quintana Capital Group GP Ltd
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
Idaho	4.0	0.0	4.0	0.0	1	MDU Resources
Virgin Islands of the U.S.	3.4	3.4	0.0	0.0	1	EIG Global Energy Partners
Arizona	2.4	0.0	2.4	0.0	2	Fortis, City of Mesa, AZ
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
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
Puerto Rico	0.0	0.0	0.0	0.0	1	Ingersoll Rand

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.