EPA GHGRP · state profile · OK
Oklahoma - top-third state emissions
According to the EPA's Greenhouse Gas Reporting Program (GHGRP), an upper-third state rollup: 50.3M MT CO₂e from 247 facilities (#17 of 54 states).
- among states
- #17
- Total CO₂e - Large emitter
- 50.3M MT
- Facilities
- 247
- Companies
- 86
- Avg / facility - High intensity
- 204K MT
Data updated May 2026
Oklahoma reports 50.3M MT CO₂e from 247 EPA GHGRP facilities and 86 parent companies (#17 of 54 U.S. states by aggregated facility CO₂e), led by OGE ENERGY at 6.9M MT (~14% of the state total).
- #17 of 54 states
- OGE ENERGY 13.8% of state
- 2% of U.S. GHGRP total
- Avg 204K MT per facility · May 2026
Dispersed in-state reporter mix
OGE ENERGY is the largest single reporter at 13.8% of Oklahoma CO₂e (6.9M MT), but the top three still account for only 33% across 86 parent companies. Shares use EPA GHGRP facilities sited in OK only, not each parent's company-wide total.
- Oklahoma is 2% of the 2.57B MT U.S. GHGRP facility rollup across 54 jurisdictions.
- Leading EPA sector by CO₂e: Power Plants at 52.5% (26.4M MT across 28 facilities) - orthogonal to the facility-count sector mix below.
- Trails Wyoming by 1.8M MT on the same state ranking.
- Leads North Carolina by 5.0M MT on the same state ranking.
Oklahoma 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)
50 17th of 54 higher than 37 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 247 Oklahoma 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 Oklahoma.
Facility mix · Scope 1 size bands
How 247 Oklahoma 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 Oklahoma.
Largest corporate emitters in Oklahoma
Oklahoma - top corporate emitters (MT CO₂e)
Company footprint
Which companies combine scale and emissions?
Each point is a leading Oklahoma reporter. The crosshairs mark the median among the companies shown, so the chart distinguishes a larger facility footprint from a higher emissions total.
This is a comparison of the leading 12 reporters displayed above, not a measure of production, population, or total company-wide emissions outside Oklahoma.
Read the chart values
- OGE ENERGY 8 sites · 6.9M MT
- AMERICAN ELECTRIC POWER CO 22 sites · 5.1M MT
- CF INDUSTRIES HOLDINGS 6 sites · 4.5M MT
- KOCH INDUSTRIES 59 sites · 3.0M MT
- ASSOCIATED ELECTRIC COOPERATIVE 7 sites · 2.6M MT
- ARGO INFRASTRUCTURE PARTNERS 3 sites · 2.3M MT
- OKLAHOMA MUNICIPAL POWER AUTHORITY 3 sites · 2.2M MT
- KIOWA POWER PARTNERS 1 sites · 2.2M MT
- GRAND RIVER DAM AUTHORITY 1 sites · 2.0M MT
- PHILLIPS 66 27 sites · 1.9M MT
- J POWER USA DEVELOPMENT CO 7 sites · 1.5M MT
- WESTERN FARMERS ELECTRIC COOPERATIVE 4 sites · 1.4M MT
State insight: Oklahoma
Oklahoma (OK) reports 50.3M MT CO₂e from 247 EPA GHGRP facilities operated by 86 companies (#17 of 54 states by aggregated facility CO₂e). Per-facility average is about 204K MT. Power Plants leads the in-state CO₂e mix at 52.5%.
Upper-third emitters here include OGE ENERGY, AMERICAN ELECTRIC POWER CO, CF INDUSTRIES HOLDINGS (33% of the OK total). These are Scope 1 facility reports only - not a full state inventory or company-wide footprint. See methodology.
Largest corporate emitters in Oklahoma
Highest-emitting GHGRP facilities in Oklahoma
Nationwide peers for a top-third state rollup
Two EPA GHGRP peer sets for an upper-third state (50.3M MT): nearest CO₂e totals and facility-book matches beyond the in-state tables above.
Similar reported CO₂e
Nearest states by aggregated facility CO₂e (50.3M MT here).
Similar facility inventory
Nearest states by GHGRP reporting facility count (247 here).
State totals aggregate EPA Greenhouse Gas Reporting Program (GHGRP) facility reports sited in Oklahoma (OK). 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.