Largest greenhouse-gas emitters in Colorado

116 facilities in Colorado reported 37,798,968 metric tons CO2e of direct emissions to the EPA for 2023, 1.6% of the national total for reporting direct emitters. Power Plants accounts for the most (75%). Largest first.

#	Facility	City	Sector	t CO2e
1	Comanche (470)	Pueblo	Power Plants	6,991,406
2	Craig	Craig	Power Plants	5,306,621
3	Pawnee	Brush	Power Plants	3,099,895
4	Hayden	Hayden	Power Plants	2,668,816
5	Fort St. Vrain	Platteville	Power Plants	1,673,244
6	Cherokee	Denver	Power Plants	1,514,357
7	Rawhide Energy Station	Wellington	Power Plants	1,451,281
8	Rocky Mountain Energy Center	Keenesburg	Power Plants	1,074,430
9	Ray D Nixon	Fountain	Power Plants	1,069,478
10	Front Range Power Plant	Fountain	Power Plants	870,889
11	SUNCOR ENERGY (USA) COMMERCE CITY REFINERY	Commerce City	Refineries, Chemicals	811,958
12	Holcim (US) Inc. - Portland Plant	Florence	Minerals	737,083
13	Pueblo Airport Generating Station	Pueblo	Power Plants	727,076
14	GCC RIO GRANDE INC	Pueblo	Minerals	608,677
15	J.M. Shafer Generating Station	Fort Lupton	Power Plants	482,180
16	Ignacio Gas Plant	Durango	Petroleum and Natural Gas Systems	403,629
17	Meeker Gas Plant	Rifle	Petroleum and Natural Gas Systems	361,198
18	Fort Lupton Compressor Station	Brighton	Petroleum and Natural Gas Systems	338,082
19	Arkansas Loop & Simpson Treating Plants	Durango	Petroleum and Natural Gas Systems	333,442
20	MEWBOURN GAS PLANT	Gilcrest	Petroleum and Natural Gas Systems	308,327
21	West Elk Mine	Somerset	Other	304,967
22	WILLOW CREEK GAS PLANT	Rifle	Petroleum and Natural Gas Systems	292,396
23	CF & I STEEL L P/ DBA ROCKY MOUNTAIN STEEL MILLS	Pueblo	Metals, Waste	275,194
24	Blue Spruce Energy Center	Aurora	Power Plants	269,797
25	LUCERNE GAS PLANT	Greeley	Petroleum and Natural Gas Systems	256,256
26	CEMEX CONSTRUCTION MATERIALS SOUTH LLC	Lyons	Minerals	243,722
27	Molson Coors USA LLC - Golden Brewery	Golden	Other	224,200
28	BARGATH, INC.- PARACHUTE	Parachute, 3.4 Mi Nw Of	Petroleum and Natural Gas Systems	215,169
29	LARIMER COUNTY LANDFILL	Fort Collins	Waste	213,903
30	Manchief Generating Station	Brush	Power Plants	206,071
31	Florida River Gas Processing Facility	Durango	Petroleum and Natural Gas Systems	196,109
32	O'Connor Gas Plant	LaSalle	Petroleum and Natural Gas Systems	193,642
33	Microchip Technology	Colorado Springs	Other	186,821
34	Frank Knutson Station	Commerce City	Power Plants	174,273
35	Spindle Hill Energy Center	Fort Lupton	Power Plants	148,836
36	Central Treating Facility	Meeker	Petroleum and Natural Gas Systems	140,773
37	Arapahoe Combustion Turbine Facility	Denver	Power Plants	107,556
38	FRONT RANGE LANDFILL	Erie	Waste	103,666
39	MESA COUNTY LANDFILL	Grand Junction	Waste	102,513
40	OWENS-BROCKWAY GLASS CONTAINER INC PLANT 28	Windsor	Minerals	101,576
41	Leprino Foods, Greeley	Greeley	Other	100,503
42	Limon Generating Station	Limon	Power Plants	95,919
43	CIG Station 5850 Cheyenne, CO	Carr	Petroleum and Natural Gas Systems	91,461
44	NORTH WELD SANITARY LANDFILL	Ault	Waste	87,432
45	Martin Drake	Colorado Springs	Power Plants	82,062
46	Latham Gas Plant	Platteville	Petroleum and Natural Gas Systems	80,755
47	Brush Power Projects	Brush	Power Plants	78,196
48	PUBLIC SERVICE CO DENVER STEAM PLT	Denver	Power Plants	75,940
49	ROCKY MOUNTAIN BOTTLE COMPANY	Wheat Ridge	Minerals	75,103
50	AMERICAN GYPSUM COMPANY	Gypsum	Minerals	74,893
51	WESTERN SUGAR COOP	Fort Morgan	Minerals	68,404
52	Crusoe Energy Systems, Inc. - Snapper	Denver	Other	64,435
53	Cheyenne Hub Compressor Station 905	Carr	Petroleum and Natural Gas Systems	60,855
54	EAGLE COUNTY LANDFILL	Wolcott	Waste	60,120
55	FORT CARSON USARMY	Fort Carson	Other	57,373
56	JBS Swift Beef Company - Greeley Plant	Greeley	Other	56,423
57	University of Colorado Boulder - Utility Services	Boulder	Power Plants	54,989
58	STERLING ETHANOL, LLC	Sterling	Other	54,556
59	YUMA ETHANOL, LLC	Yuma	Other	54,450
60	Twin Landfill Corporation	Milner	Waste	51,446
61	Makena Gas Plant	Briggsdale	Petroleum and Natural Gas Systems	50,737
62	Natural Soda	Rifle	Other	49,551
63	Wattenberg Gas Plant	Aurora	Petroleum and Natural Gas Systems	49,506
64	Fountain Valley Power Plant	Fountain	Power Plants	48,697
65	EPNG Station 6210 Bondad	Ignacio	Petroleum and Natural Gas Systems	48,644
66	TOWER LANDFILL INC	Commerce City	Waste	48,181
67	MONTROSE COUNTY LANDFILL	Montrose	Waste	47,375
68	PLATTEVILLE GAS PLANT	Platteville	Petroleum and Natural Gas Systems	46,781
69	COLORADO STATE UNIVERSITY	Fort Collins	Other	44,836
70	SUMMIT COUNTY LANDFILL	Dillon Area	Waste	44,565
71	DENVER ARAPAHOE DISPOSAL SITE-A WASTE MANAGEMENT COMPANY	Aurora	Waste	43,853
72	CIG Station 5950 Watkins, CO	Aurora	Petroleum and Natural Gas Systems	42,456
73	East Regional Landfill	Bennett	Waste	41,068
74	Centennial Gas Plant	Briggsdale	Petroleum and Natural Gas Systems	41,042
75	Keenesburg Gas Plant	Keenesburg	Petroleum and Natural Gas Systems	40,983
76	FRONT RANGE ENERGY	Windsor	Other	40,775
77	Bondad Recycling Center and Depository	Durango	Waste	39,648
78	Jackson Lake Gas Plant	Weldona	Petroleum and Natural Gas Systems	37,227
79	WASTE CONNECTIONS - SOUTHSIDE LANDFILL	Pueblo	Waste	36,997
80	ANHEUSER BUSCH INCORPORATED FORT COLLINS BREWERY	Fort Collins	Other	35,740
81	GREELEY GAS PLANT	Greeley	Petroleum and Natural Gas Systems	34,967
82	Avago Technologies	Fort Collins	Other	34,457
83	CARGILL MEAT SOLUTIONS CORPORATION	Fort Morgan	Other, Waste	34,362
84	LADDER CREEK HELIUM PLANT	Cheyenne Wells	Chemicals	34,219
85	ROGGEN GAS PLANT	Roggen	Petroleum and Natural Gas Systems	33,721
86	Cureton - Front Range Gas Plant	Keensburg	Petroleum and Natural Gas Systems	32,807
87	Midway Landfill	Fountain	Waste	31,340
88	CARESTREAM HEALTH INC.	Windsor	Chemicals	30,628
89	FOOTHILLS LANDFILL	Golden	Waste	29,146
90	DENVER INTERNATIONAL AIRPORT	Denver	Other	28,551
91	US Air Force Academy	Usafa	Other	26,292
92	HEREFORD RANCH PROCESSING PLANT	Grover	Petroleum and Natural Gas Systems	26,162
93	Fort Lupton Gas Plant	Fort Lupton	Petroleum and Natural Gas Systems	25,833
94	Crusoe Energy Systems, Inc. - Oxbow	Denver	Other	25,760
95	Golden Aluminum Inc.	Fort Lupton	Metals	25,432
96	Crusoe Energy Systems, Inc. - Surprise S4	Denver	Other	25,077
97	SPINDLE GAS PROCESSING PLANT	Ft Lupton	Petroleum and Natural Gas Systems	24,750
98	Colorado Springs Landfill	Colorado Springs	Waste	23,044
99	Valmont	Boulder	Power Plants	21,336
100	CIG Station 5320 Fort Lupton, CO	Ft. Lupton	Petroleum and Natural Gas Systems	20,800
101	UGC - DRAGON TRAIL GAS PLANT - 08-103-00036	Rangely	Petroleum and Natural Gas Systems	20,046
102	BROADACRE LANDFILL - FOUNTAIN LANDFILL	Fountain	Waste	14,930
103	Twentymile Mine	Oak Creek	Other	13,899
104	CIG Station 5560 Kit Carson, CO	Eads	Petroleum and Natural Gas Systems	13,285
105	Redtail Gas Plant	New Raymer	Petroleum and Natural Gas Systems	11,992
106	BOULDER LANDFILL	Boulder	Waste	11,090
107	Compressor Station 601	Peetz	Petroleum and Natural Gas Systems	9,982
108	PLAINS END Generating Station	Arvada	Power Plants	8,441
109	Meeker Compressor Station	Rifle	Petroleum and Natural Gas Systems	8,411
110	DEBEQUE GAS PROCESSING FACILITY	De Beque	Petroleum and Natural Gas Systems	8,270
111	WASTE MGMT OF CO INC County Line	Littleton	Waste	5,276
112	DENVER REGIONAL LANDFILL	Erie	Waste	5,144
113	Crusoe Energy Systems, Inc. - Eagle 4-9	Denver	Other	3,440
114	Eagle Valley Clean Energy	Gypsum	Power Plants	1,288
115	MESSER LLC CORTEZ PLANT	Cortez	Chemicals	828
116	Denver Regional North Landfill	Erie	Waste	473

Source: EPA Greenhouse Gas Reporting Program, 2023 reporting year, sector-level emissions from data.epa.gov (fetched October 31, 2026). Direct emissions in metric tons CO2e as EPA totals them: emitter sectors only, biogenic CO2 reported separately. Covers facilities that report as direct emitters; most emit 25,000 t CO2e or more a year. Reference only.

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