Greenhouse 100 Suppliers Index (2023 Report, Based on 2021 Data)
(Click on column headers to re-sort table)
Greenhouse 100 Suppliers Rank (sorted by) Parent Corporation or Entity 2021 Emissions from Fossil Fuel Supplies (CO2 Metric Tons) Percentage of 2021 U.S.Greenhouse Gas Emissions From Supplies % of Supplier CO2 from a Single Facility Industrial Sectors
1 Marathon Petroleum 399,450,072 8.5% 22% Petroleum Refineries, Natural Gas Extraction
2 Phillips 66 272,202,077 5.8% 14% Petroleum Refineries, Natural Gas Extraction
3 Valero Energy 260,703,669 5.6% 15% Petroleum Refineries, Petroleum Wholesalers, Ethyl Alcohol Manufacturing
4 Exxon Mobil 246,421,832 5.3% 32% Petroleum Refineries, Natural Gas Extraction, Other, Crude Petroleum Extraction
5 Peabody Energy 188,340,542 4.0% 57% Coal Mining
6 Chevron 134,153,895 2.9% 33% Petroleum Refineries
7 Arch Resources 127,785,077 2.7% 79% Coal Mining
8 Enterprise Products Partners 110,625,635 2.4% 13% Natural Gas Extraction, Other
9 PBF Energy 99,517,666 2.1% 19% Petroleum Refineries, Other
10 PDVSA (Petroleos de Venezuela S.A.) 97,703,744 2.1% 54% Petroleum Refineries, Petroleum Wholesalers
11 Koch Industries 94,289,228 2.0% 54% Petroleum Refineries, Petroleum Wholesalers, Other, Nitrogenous Fertilizer Manufacturing
12 BP 90,543,019 1.9% 65% Petroleum Refineries, Other
13 Invesco 89,855,956 1.9% 28% Coal Mining
14 Saudi Arabian Oil Company (Saudi Aramco) 88,602,296 1.9% 100% Petroleum Refineries, Petroleum Wholesalers
15 Navajo Transitional Energy Company LLC 87,940,365 1.9% 42% Coal Mining
16 HF Sinclair Corporation 87,075,354 1.9% 27% Petroleum Refineries
17 Alliance Resource Partners 72,098,069 1.5% 31% Coal Mining
18 Energy Transfer 70,713,550 1.5% 37% Pipeline Transportation of Natural Gas, Natural Gas Extraction, Other
19 Oneok 65,587,569 1.4% 29% Natural Gas Extraction
20 Cenovus Energy 61,889,939 1.3% 34% Petroleum Refineries
21 Delek 56,958,958 1.2% 54% Petroleum Refineries
22 Consol Energy 53,625,620 1.1% 49% Coal Mining
23 Targa Resources 52,975,073 1.1% 96% Natural Gas Extraction, Other
24 NiSource 48,194,434 1.0% 41% Natural Gas Distribution
25 Mike Jamison; Petri E Koivula; John McNab 47,591,974 1.0% 52% Coal Mining
26 Sempra Energy 46,978,730 1.0% 89% Natural Gas Distribution
27 Southern Company 43,426,152 0.9% 58% Natural Gas Distribution
28 Dominion Energy 43,031,878 0.9% 42% Natural Gas Distribution
29 PG&E Corp. 41,556,628 0.9% 100% Natural Gas Distribution
30 Foresight Energy 39,759,712 0.8% 44% Coal Mining
31 Kinder Morgan 39,378,766 0.8% 37% Petroleum Refineries, Natural Gas Distribution, Natural Gas Extraction
32 National Grid 38,585,683 0.8% 28% Natural Gas Distribution, Other
33 LyondellBasell Industries 37,414,941 0.8% 100% Petroleum Refineries, Other
34 MPLX LP 37,414,395 0.8% 59% Natural Gas Extraction, Pipeline Transportation of Natural Gas
35 CenterPoint Energy 37,206,396 0.8% 25% Natural Gas Distribution
36 Petroleos Mexicanos (Pemex) 36,436,764 0.8% 100% Petroleum Refineries
37 WEC Energy Group 36,210,280 0.8% 27% Natural Gas Distribution
38 NACCO Industries 35,540,863 0.8% 45% Coal Mining
39 Alpha Metallurgical Resources 35,437,029 0.8% 15% Coal Mining
40 Duke Energy 33,378,866 0.7% 70% Natural Gas Distribution
41 Shell PLC 30,286,836 0.6% 66% Petroleum Refineries, Petroleum Wholesalers, Other
42 Icahn Enterprises 28,099,139 0.6% 63% Petroleum Refineries, Nitrogenous Fertilizer Manufacturing
43 CHS Inc. 27,223,936 0.6% 66% Petroleum Refineries, Petroleum Wholesalers
44 Atmos Energy 24,863,677 0.5% 54% Natural Gas Distribution
45 Delta Air Lines 24,141,459 0.5% 100% Petroleum Refineries
46 Williams Companies 23,756,912 0.5% 30% Natural Gas Extraction, Crude Petroleum Extraction
47 Xcel Energy 22,109,335 0.5% 63% Natural Gas Distribution
48 Berkshire Hathaway 21,365,692 0.5% 34% Natural Gas Distribution, Coal Mining, Petroleum Refineries, Natural Gas Extraction, Petroleum Wholesalers, Other
49 Par Pacific Holdings 19,930,663 0.4% 61% Petroleum Refineries
50 TotalEnergies SE 19,622,965 0.4% 100% Petroleum Refineries, Petroleum Wholesalers, Other
51 ONE Gas Inc. 19,508,233 0.4% 56% Natural Gas Distribution
52 CMS Energy 19,080,945 0.4% 100% Natural Gas Distribution
53 UGI Corp. 18,915,891 0.4% 86% Natural Gas Distribution
54 Black Hills Corp. 18,732,678 0.4% 32% Natural Gas Distribution, Coal Mining
55 Consolidated Edison 18,568,916 0.4% 92% Natural Gas Distribution
56 DTE Energy 18,398,839 0.4% 99% Natural Gas Distribution
57 Kiewit 18,084,787 0.4% 100% Coal Mining
58 Sev.en Energy 18,082,772 0.4% 13% Coal Mining
59 Westmoreland Mining LLC 17,693,249 0.4% 62% Coal Mining
60 Spire Inc. 17,279,055 0.4% 33% Natural Gas Distribution
61 Public Service Enterprise 16,721,979 0.4% 100% Natural Gas Distribution
62 Global Mining Group LLC 16,216,628 100% Coal Mining
63 AltaGas 15,580,099 27% Natural Gas Distribution, Other
64 Energy and Minerals Group 15,542,085 70% Coal Mining
65 EnLink Midstream 15,378,815 39% Natural Gas Extraction
66 MDU Resources 15,361,095 40% Natural Gas Distribution
67 Trafigura Group 15,318,201 52% Coal Mining
68 Prairie State Energy Campus (facility) 14,850,445 100% Coal Mining
69 Iberdrola 14,636,360 37% Natural Gas Distribution, Other
70 Emera 14,221,157 71% Natural Gas Distribution
71 Vistra Energy 13,853,568 81% Coal Mining
72 Iron Senergy Holding LLC 13,378,083 100% Coal Mining
73 Hunt Consolidated 13,113,266 91% Petroleum Refineries
74 Hallador Energy 12,914,196 61% Coal Mining
75 Warrior Met Coal 12,542,158 86% Coal Mining
76 J Clifford Forrest III 12,137,115 13% Coal Mining
77 Calumet Specialty Products 12,078,826 44% Petroleum Refineries
78 Exelon 11,384,405 42% Natural Gas Distribution
79 Southwest Gas 11,045,317 59% Natural Gas Distribution
80 Suncor Energy 10,622,599 100% Petroleum Refineries
81 TRANSWORLD OIL USA INC 10,568,605 100% Petroleum Refineries
82 Ameren 10,485,609 89% Natural Gas Distribution
83 CBR Investments 10,059,746 92% Coal Mining
84 Petro-Hunt 9,919,141 98% Petroleum Refineries, Natural Gas Extraction
85 Red Apple Group 9,806,896 100% Petroleum Refineries
86 Alliant Energy 9,743,761 52% Natural Gas Distribution
87 EverSource Energy 9,514,667 37% Natural Gas Distribution
88 Denbury Inc. 8,873,785 42% Crude Petroleum Extraction
89 IFM Investors 8,854,331 100% Petroleum Refineries
90 Essential Utilities Inc. 8,093,328 81% Natural Gas Distribution
91 Epic Midstream LLC 7,682,229 72% Natural Gas Extraction
92 National Fuel Gas 7,407,773 66% Natural Gas Distribution, Natural Gas Extraction
93 Ergon 7,241,331 59% Petroleum Refineries
94 Aux Sable Companies 6,629,397 100% Natural Gas Extraction
95 Puget Sound Energy 6,425,538 100% Natural Gas Distribution
96 Western Fuels Association 6,336,787 100% Coal Mining
97 Occidental Petroleum 6,277,898 43% Crude Petroleum Extraction, Coal Mining, Natural Gas Extraction
98 SCM Group 6,203,798 31% Coal Mining
99 Northwest Natural Holding Co 6,151,299 91% Natural Gas Distribution
100 South Jersey Industries 5,493,602 52% Natural Gas Distribution
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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