EPA GHGRP · compare tool

Compare corporate GHG emissions

According to the EPA's Greenhouse Gas Reporting Program (GHGRP), pick two parent companies and weigh Scope 1 CO₂e, facility count, and industry mix on the same evidence.

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Reporters in picker
120
Picker CO₂e
1.6B MT
Vistra
5.2%
86.3M MT lead

The compare tool lists the 120 largest EPA GHGRP parent companies (1.6B MT CO₂e combined). Vistra leads the picker at 86.3M MT (5.2% of that set); The Southern is second at 78.4M MT. Pair pages stay Scope 1 only; facilities under 25,000 MT/year are not required to report.

  • #1 in picker Vistra
  • 120 parents · Scope 1
  • Latest facility reports rolled to parent

Registry shape · Scope 1 bands

How 2,289 reporting parents split by latest Scope 1 total

Before you open a pair, see where each parent sits in the exclusive Scope 1 size bands across the full reporting registry, not just the 120-company picker above.

Exclusive parent-company counts by latest rolled-up Scope 1 band. Orthogonal to the picker share and to facility-count span. Source: EPA GHGRP parent rollups.

Open compare tool → Picker hub

Largest parents in the tool

Vistra86.3MThe Southern78.4MDuke Energy65.0MCPN Management47.6MNextera Energy45.6MAmerican Electric Pow…44.7MBerkshire Hathaway43.1MUS Government41.4M
Top 8 of the 120-company compare picker, metric tons CO2e

Scale is not the whole story

Which major reporters combine a broad footprint with high reported emissions?

Each point is a leading parent company in this tool. The crosshairs mark the median among the companies shown, separating a larger reporting footprint from a higher Scope 1 total.

Fewer sites / higher CO₂eMore sites / higher CO₂eFewer sites / lower CO₂eMore sites / lower CO₂e14.6 sites39.0 sites63.5 sites88.0 sites112.5 sites25.9M41.7M57.5M73.4M89.2MReporting facilitiesReported CO₂e (million MT)Vistra, Reporting facilities: 40 sites · Reported CO₂e (million MT): 86.3MThe Southern, Reporting facilities: 39 sites · Reported CO₂e (million MT): 78.4MDuke Energy, Reporting facilities: 39 sites · Reported CO₂e (million MT): 65MCPN Management, Reporting facilities: 43 sites · Reported CO₂e (million MT): 47.6MNextera Energy, Reporting facilities: 19 sites · Reported CO₂e (million MT): 45.6MAmerican Electric Power CO, Reporting facilities: 22 sites · Reported CO₂e (million MT): 44.7MBerkshire Hathaway, Reporting facilities: 108 sites · Reported CO₂e (million MT): 43.1MUS Government, Reporting facilities: 83 sites · Reported CO₂e (million MT): 41.4MExxon Mobil, Reporting facilities: 24 sites · Reported CO₂e (million MT): 34.3MEntergy, Reporting facilities: 24 sites · Reported CO₂e (million MT): 33.9MXcel Energy, Reporting facilities: 28 sites · Reported CO₂e (million MT): 29MMarathon Petroleum, Reporting facilities: 24 sites · Reported CO₂e (million MT): 28.8M
Leading parent companies: reporting facilities and reported CO₂e

This compares the leading 12 companies displayed here. It does not measure production, revenue, or a full corporate carbon footprint beyond EPA GHGRP-reporting facilities.

Read the chart values

Use this comparison

Start with the pair, then check the reporting boundary

  • Open a side-by-side comparison to test whether a difference comes from a larger facility footprint or a higher reported total.
  • Treat every figure here as EPA GHGRP Scope 1: facilities below 25,000 MT CO2e per year and a company’s broader value-chain emissions are outside this tool.
  • Use the key findings for the national context, then follow a company profile to inspect its reporting-year trend and industry mix.
Compiled from official public sources by the publisher.

Download the state aggregate CSV available beside these tools: ghgrp-state-statistics.csv. Key findings live on statistics.

Every figure on PlainCarbon is rendered directly from EPA Greenhouse Gas Reporting Program (GHGRP) data, no number is typed in by an editor. This page draws directly on the EPA Greenhouse Gas Reporting Program (GHGRP); no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. For the boundaries on using this data, read our privacy policy, terms of use, and appropriate-use disclaimer.