EPA GHGRP · state profile · AK
Alaska - lower-footprint state profile
According to the EPA's Greenhouse Gas Reporting Program (GHGRP), a smaller state total: 17.5M MT CO₂e across 77 reporting facilities in AK.
- among states
- #38
- Total CO₂e - Large emitter
- 17.5M MT
- Facilities
- 77
- Companies
- 32
- Avg / facility - High intensity
- 227K MT
Data updated May 2026
Alaska reports 17.5M MT CO₂e from 77 EPA GHGRP facilities and 32 parent companies (#38 of 54 U.S. states by aggregated facility CO₂e), led by HILCORP ENERGY at 7.9M MT (~45% of the state total).
- #38 of 54 states
- HILCORP ENERGY 45.1% of state
- 0.7% of U.S. GHGRP total
- Avg 227K MT per facility · May 2026
Top-reporter concentration desk
HILCORP ENERGY dominates the in-state book at 45.1% of reported Alaska CO₂e (7.9M MT of 17.5M MT). Top-three reporters hold 55.3% (HILCORP ENERGY; EXXON MOBIL; GOLDEN VALLEY ELECTRIC ASSOC). Shares use EPA GHGRP facilities sited in AK only, not each parent's company-wide total.
- Alaska is 0.7% of the 2.57B MT U.S. GHGRP facility rollup across 54 jurisdictions.
- Leading EPA sector by CO₂e: Petroleum and Natural Gas Systems at 67.4% (11.8M MT across 31 facilities) - orthogonal to the facility-count sector mix below.
- Trails Maryland by 15K MT on the same state ranking.
- Leads Nevada by 1.4M MT on the same state ranking.
Alaska vs all states by reported GHGRP CO₂e
Where this state's aggregated facility Scope 1 sits among every state and territory in the EPA GHGRP file (readout in million MT)
18 38th of 54 higher than 16 of 54 states
States and territories, banded by total reported facility CO₂e (MT)
Each bar is a band; taller bars hold more states. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count and share, and where it sits relative to this entry.
Source EPA Greenhouse Gas Reporting Program · May 2026
Facility mix · EPA sector count
How 77 Alaska facilities split by EPA sector
Exclusive in-state facility counts by EPA industry_sector, orthogonal to the leading-parent CO₂e share lens above. Source: EPA GHGRP facility reports in Alaska.
Facility mix · Scope 1 size bands
How 77 Alaska facilities split by latest reported Scope 1
Exclusive in-state facility counts by latest reported Scope 1 size band, orthogonal to the EPA sector mix above. Source: EPA GHGRP facility reports in Alaska.
Largest corporate emitters in Alaska
Alaska - top corporate emitters (MT CO₂e)
State insight: Alaska
Alaska (AK) reports 17.5M MT CO₂e from 77 EPA GHGRP facilities operated by 32 companies (#38 of 54 states by aggregated facility CO₂e). Per-facility average is about 227K MT. Petroleum and Natural Gas Systems leads the in-state CO₂e mix at 67.4%.
Top in-state reporters: HILCORP ENERGY, EXXON MOBIL, GOLDEN VALLEY ELECTRIC ASSOC (together 55.3% of the AK total). These are Scope 1 facility reports only - not a full state inventory or company-wide footprint. See methodology.
Top companies in Alaska
Top facilities in Alaska
Nationwide peers for a lower-footprint state
Comparison paths for a smaller GHGRP state total: nearest CO₂e rollups and facility-count neighbors outside AK.
Similar reported CO₂e
Nearest states by aggregated facility CO₂e (17.5M MT here).
Similar facility inventory
Nearest states by GHGRP reporting facility count (77 here).
State totals aggregate EPA Greenhouse Gas Reporting Program (GHGRP) facility reports sited in Alaska (AK). Figures reflect facility self-reporting, not a full state inventory. See our methodology. Retrieved and formatted by PlainCarbon
Related reading: Understanding corporate carbon reporting · All states · Methodology
Disclaimer: This information is provided for informational purposes only and does not constitute professional advice. Data is sourced from the EPA Greenhouse Gas Reporting Program (GHGRP). Consult a qualified professional before making decisions based on this data.