Greenhouse 100 Polluters Index (2023 Report, Based on 2021 Data)

(Click on column headers to re-sort table: current sort is by CO2 Equivalent Emissions.)

Greenhouse 100 Rank	Parent corporation or entity	2021 Emissions (CO2 equivalent metric tons)	Percentage of 2021 U.S. greenhouse gas emissions from all sources	EJ: Poor	EJ: Minority	% of CO2 equivalent emissions from a single facility	Industrial Sectors
1	Vistra Energy (*)	99,793,085	1.6%	12%	38%	14%	Power Plants
2	Southern Company	82,113,848	1.3%	15%	48%	26%	Power Plants, Petroleum and Natural Gas Systems, Other
3	Duke Energy	79,435,840	1.3%	14%	29%	12%	Power Plants, Other, Petroleum and Natural Gas Systems, Waste
4	Berkshire Hathaway	72,113,565	1.1%	14%	36%	15%	Power Plants, Petroleum and Natural Gas Systems, Minerals, Other, Metals, Chemicals, Refineries
5	American Electric Power	60,653,224	1.0%	16%	19%	19%	Power Plants, Other
6	U.S. Government	44,132,421	0.7%	15%	44%	24%	Power Plants, Other, Waste, Petroleum and Natural Gas Systems, Chemicals
7	Energy Capital Partners	43,833,339	0.7%	15%	66%	9%	Power Plants, Metals
8	Xcel Energy	42,285,182	0.7%	13%	40%	23%	Power Plants, Petroleum and Natural Gas Systems, Other
9	Exxon Mobil	38,121,045	0.6%	15%	57%	31%	Refineries, Petroleum and Natural Gas Systems, Power Plants, Chemicals, Other
10	NextEra Energy	38,038,319	0.6%	15%	54%	19%	Power Plants, Petroleum and Natural Gas Systems, Other
11	Entergy	37,468,076	0.6%	18%	51%	20%	Power Plants, Other, Petroleum and Natural Gas Systems
12	Dominion Energy	34,263,092	0.5%	15%	46%	16%	Power Plants, Petroleum and Natural Gas Systems, Other
13	NRG Energy	32,148,918	0.5%	9%	60%	43%	Power Plants
14	DTE Energy	30,430,679	0.5%	18%	26%	47%	Power Plants, Petroleum and Natural Gas Systems, Metals
15	Cleveland-Cliffs	28,741,138	0.5%	21%	57%	26%	Metals, Minerals, Other, Waste
16	PPL Corp.	28,346,505	0.4%	17%	24%	37%	Power Plants, Petroleum and Natural Gas Systems, Other
17	Ameren	28,088,792	0.4%	10%	24%	56%	Power Plants, Petroleum and Natural Gas Systems, Other
18	Marathon Petroleum	27,642,752	0.4%	16%	73%	25%	Refineries, Power Plants, Chemicals, Petroleum and Natural Gas Systems, Other
19	Evergy Inc.	27,600,757	0.4%	17%	36%	32%	Power Plants, Other
20	ArcLight Capital Partners	26,774,448	0.4%	17%	59%	26%	Power Plants, Petroleum and Natural Gas Systems
21	Phillips 66	24,589,430	0.4%	14%	65%	13%	Refineries, Chemicals, Power Plants, Petroleum and Natural Gas Systems, Waste, Other
22	Koch Industries	23,053,118	0.4%	13%	48%	18%	Chemicals, Refineries, Pulp and Paper, Minerals, Waste, Other
23	Valero Energy	22,924,979	0.4%	17%	71%	13%	Refineries, Chemicals, Other
24	WEC Energy Group	22,000,482		12%	31%	32%	Power Plants, Petroleum and Natural Gas Systems
25	Chevron	21,629,203		14%	67%	21%	Refineries, Chemicals, Petroleum and Natural Gas Systems, Power Plants, Waste, Other
26	United States Steel	20,099,414		18%	45%	52%	Metals, Waste, Other
27	LS Power	19,721,007		17%	60%	28%	Power Plants, Other
28	AES Corp.	19,500,130		16%	66%	43%	Power Plants
29	Macquarie	19,042,958		15%	44%	33%	Power Plants, Waste, Other, Refineries
30	CF Industries	17,961,967		15%	45%	50%	Chemicals
31	CMS Energy	17,897,853		22%	46%	47%	Power Plants, Petroleum and Natural Gas Systems, Other
32	Associated Electric Cooperative Inc	16,710,688		18%	30%	49%	Power Plants
33	Basin Electric Power Cooperative	16,685,508		11%	12%	35%	Power Plants, Chemicals, Minerals, Other
34	Energy Transfer	16,651,350		15%	60%	8%	Petroleum and Natural Gas Systems, Other, Power Plants
35	Dow Inc.	16,562,065		17%	48%	30%	Chemicals, Power Plants, Waste, Petroleum and Natural Gas Systems, Other
36	Blackstone	15,959,323		13%	16%	42%	Power Plants, Petroleum and Natural Gas Systems, Minerals
37	FirstEnergy	15,867,085		18%	9%	69%	Power Plants, Other
38	Alliant Energy	15,536,680		10%	16%	41%	Power Plants, Petroleum and Natural Gas Systems
39	BP	14,401,071		19%	76%	35%	Petroleum and Natural Gas Systems, Refineries, Power Plants, Chemicals, Other
40	Pinnacle West Capital	14,366,286		21%	68%	55%	Power Plants, Other
41	Santee Cooper	13,303,619		17%	38%	58%	Power Plants
42	Waste Management Inc.	13,181,664		13%	51%	2%	Waste
43	Lower Colorado River Authority	13,085,953		13%	33%	84%	Power Plants, Other
44	OGE Energy	12,601,951		16%	41%	27%	Power Plants, Other
45	Prairie State Energy Campus (facility)	12,496,789		8%	7%	100%	Power Plants, Other
46	Air Products & Chemicals	12,455,741		15%	66%	21%	Chemicals, Power Plants
47	PBF Energy	12,407,049		15%	68%	27%	Refineries, Chemicals, Power Plants
48	Holcim Group	12,135,937		12%	40%	25%	Minerals
49	CPS Energy	11,980,812		19%	78%	67%	Power Plants, Petroleum and Natural Gas Systems
50	Enterprise Products Partners	11,395,957		20%	74%	21%	Petroleum and Natural Gas Systems, Other, Chemicals
51	Archer Daniels Midland	11,235,811		14%	20%	37%	Other, Chemicals, Pulp and Paper, Waste
52	Fortis	11,132,674		20%	55%	76%	Power Plants, Other, Petroleum and Natural Gas Systems
53	Carlyle Group	11,075,672		13%	45%	20%	Power Plants, Chemicals
54	Kinder Morgan	10,933,744		20%	72%	5%	Petroleum and Natural Gas Systems, Refineries, Other
55	Salt River Project	10,861,072		12%	41%	36%	Power Plants, Other, Waste
56	Occidental Petroleum	10,655,455		13%	59%	24%	Petroleum and Natural Gas Systems, Chemicals, Power Plants, Other
57	SK Capital Partners	10,607,791		13%	43%	81%	Chemicals, Other, Waste
58	Ares Management	10,228,535		15%	59%	29%	Power Plants, Petroleum and Natural Gas Systems
59	Great River Energy	10,107,024		5%	7%	94%	Power Plants
60	Republic Services	10,086,226		14%	59%	4%	Waste
61	Buckeye Power	10,051,879		15%	10%	97%	Power Plants
62	Colstrip Power Plant (single power plant)	10,035,340		5%	31%	100%	Power Plants
63	Riverstone Holdings	9,950,433		14%	41%	26%	Power Plants, Petroleum and Natural Gas Systems, Other
64	Laramie River (single power plant)	9,868,313		11%	11%	100%	Power Plants
65	Williams Companies	9,685,669		11%	39%	22%	Petroleum and Natural Gas Systems
66	Public Service Enterprise	9,573,770		14%	61%	21%	Power Plants, Petroleum and Natural Gas Systems, Other
67	Linde	9,451,344		19%	65%	17%	Chemicals
68	Plant Scherer (single power plant)	9,420,858		8%	24%	100%	Power Plants
69	Shell PLC	9,005,267		16%	53%	38%	Petroleum and Natural Gas Systems, Refineries, Chemicals, Other, Power Plants
70	Cheniere Energy	9,002,782		14%	56%	63%	Petroleum and Natural Gas Systems
71	East Kentucky Power Cooperative	8,941,223		18%	9%	89%	Power Plants, Other
72	Omaha Public Power District	8,882,249		15%	35%	77%	Power Plants
73	Targa Resources	8,734,277		20%	74%	30%	Petroleum and Natural Gas Systems
74	LyondellBasell Industries	8,339,428		18%	77%	25%	Chemicals, Refineries, Other
75	Hilcorp Energy	8,271,923		20%	71%	21%	Petroleum and Natural Gas Systems
76	Emera	8,252,898		15%	54%	38%	Power Plants, Petroleum and Natural Gas Systems, Other
77	Exelon	8,012,959		15%	50%	28%	Power Plants, Petroleum and Natural Gas Systems, Other
78	Nebraska Public Power District	7,864,613		10%	16%	85%	Power Plants, Other
79	Craig (power station)	7,831,174		16%	21%	100%	Power Plants
80	NiSource	7,811,012		15%	28%	59%	Power Plants, Petroleum and Natural Gas Systems, Other
81	Seminole Electric Cooperative	7,795,400		24%	38%	79%	Power Plants, Waste
82	Tenaska	7,571,008		11%	15%	35%	Power Plants
83	DCP Midstream Partners	7,567,593		12%	45%	18%	Petroleum and Natural Gas Systems
84	HF Sinclair Corporation	7,548,416		14%	31%	24%	Refineries, Chemicals, Petroleum and Natural Gas Systems
85	Omnigen Global	7,448,325		16%	5%	100%	Power Plants
86	PDVSA (Petroleos de Venezuela S.A.)	7,338,194		11%	43%	57%	Refineries, Chemicals
87	Keystone Generating Station (single power plant)	7,267,256		13%	6%	100%	Power Plants
88	ConocoPhillips	7,125,186		15%	71%	23%	Petroleum and Natural Gas Systems, Refineries
89	Intermountain Power Agency	6,975,796		17%	21%	100%	Power Plants
90	BPXA	6,946,416		0%	0%	44%	Petroleum and Natural Gas Systems
91	Starwood Energy Group	6,891,185		12%	38%	41%	Power Plants
92	WestRock	6,871,742		15%	39%	18%	Pulp and Paper, Waste
93	Buzzi Unicem	6,835,347		11%	39%	28%	Minerals
94	Invesco	6,757,745		16%	28%	32%	Other
95	Westlake Chemical	6,616,403		16%	35%	42%	Chemicals, Power Plants, Other
96	CRH PLC	6,594,878		9%	44%	20%	Minerals
97	HeidelbergCement	6,591,986		10%	29%	29%	Minerals
98	TC Energy	6,541,866		20%	63%	3%	Petroleum and Natural Gas Systems
99	Oglethorpe Power	6,429,167		15%	38%	50%	Power Plants
100	Nutrien Ltd.	6,387,111		16%	44%	29%	Chemicals

Explanatory notes (For details, see the technical notes).

This edition of the Greenhouse 100 ranks companies by C02-equivalent greenhouse gas emissions (including CO2, methane, nitrous oxide, and fluorinated gases, but not biogenic CO2) directly released by large facilities in the US in 2021.

Percentage of 2021 U.S. greenhouse gas emissions from all sources: parent corporation or entity's percentage of all U.S. greenhouse gas emissions, including electric power, transportation, industrial, commercial, residential, and agricultural emissions, the total of which is 6,347.7 million metric tons of CO2 equivalents according to the 2021 U.S. Inventory of Greenhouse Gas Emissions and Sinks.  Source: US EPA.

Environmental Justice (EJ): Poor Share and Minority Share: Shares of the potential co-pollutants of combustion borne by people living below the poverty line or by people in minority racial/ethnic groups. In the U.S. population, 10.5 percent lived below the poverty line in 2020 and 40 percent are members of minority racial/ethnic groups.  
Sources: US EPA, US Census, and CTIP.

The links from each parent name lead to an application that gives detailed facility and sector information about the company. You can also search for companies not on the Greenhouse 100. For more information on the data, see the technical notes.