EPA GHGRP · reporting year 2023 · Chemicals
Westlake - top-third GHGRP parent
According to the EPA's Greenhouse Gas Reporting Program (GHGRP), an upper-third Scope 1 reporter: 3 facilities across 2 states (2.8M MT CO₂e in 2023).
- MT CO₂e (latest facility reports)
- 2.8M
- Reporting facilities
- 3
- States covered
- 2
- Overall rank
- #170
Data updated May 2026
According to the EPA GHGRP, Westlake reported 2.8M MT CO₂e in 2023 across 3 facilities in 2 states (ranks among the top 10% of U.S. corporate GHG emitters (#170 of 2,289)) Emissions decreased 9% over the tracked period.
- Overall rank #170 of 2,289
- #18 in Chemicals
- -8.6% since 2011
Westlake vs all U.S. GHGRP parent companies
Where this parent's reported Scope 1 CO₂e sits among every EPA GHGRP-reporting company
2,812,812 170th of 2289 higher than 2,119 of 2,289 companies
GHGRP parent companies, banded by reported CO₂e (MT)
Each bar is a band; taller bars hold more companies. 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 · 2023
How Westlake spreads its footprint vs Chemicals peers
Facility count against total reported CO₂e for 21 Chemicals companies. A company can lead its sector from one concentrated site or from many smaller ones; the split below uses the median of this peer group (7 facilities, 7.4M MT).
You are here: Westlake.
Chemicals peer footprint table: Westlake, 3 facilities, 2.81M MT CO2e. Exxon Mobil, 4 facilities, 26.19M MT CO2e. Cf Industries Holdings, 6 facilities, 20.58M MT CO2e. Chevron, 8 facilities, 16.31M MT CO2e. Phillips 66, 9 facilities, 15.35M MT CO2e. Air Products & Chemicals, 27 facilities, 14.07M MT CO2e. Valero Energy, 7 facilities, 13.11M MT CO2e. Dow, 9 facilities, 12.33M MT CO2e. Koch Industries, 9 facilities, 11.58M MT CO2e. Marathon Petroleum, 6 facilities, 9M MT CO2e. Linde, 18 facilities, 8.79M MT CO2e. Bp America, 2 facilities, 7.4M MT CO2e. Lyondellbasell Industries, 9 facilities, 6.91M MT CO2e. Shell Petroleum, 4 facilities, 6.83M MT CO2e. American Air Liquide Holdings, 12 facilities, 6.17M MT CO2e. Eastman Chemical, 6 facilities, 6.04M MT CO2e. Formosa Plastics CORP USA, 2 facilities, 5.61M MT CO2e. Nutrien US Topco, 4 facilities, 4.67M MT CO2e. Westlake Chemical, 7 facilities, 4.44M MT CO2e. Basf, 8 facilities, 3.79M MT CO2e. Occidental Petroleum, 7 facilities, 3.5M MT CO2e.
EPA GHGRP inventory plate
Parent westlake · 2023 #170 · 2.8M MT
CO2E-MID · TOP-DECILE · PHOTO-FINISH · FAC-PAIR · SPAN-PAIR · SECTOR-CHEMICALS · TREND-DOWN · BOOK-RICH
- CO2E-MID 2.8M MT
- TOP-DECILE #170/2289
- PHOTO-FINISH Hpjv1 · Power Plants
- FAC-PAIR 3 facilities
- SPAN-PAIR 2 states
- SECTOR-CHEMICALS Chemicals
- TREND-DOWN −9% since 2011
- BOOK-RICH 7/8 fields
Nearest CO₂e peer: Hpjv1 · Power Plants (±725 MT)
Upper-third parent rollup stamps: CO₂e band, corpus rank, peer, facility book, state span, sector, trend. Not an EPA grade.
2023 nearly all-CO₂ parent book
This parent's 2023 facility book is almost entirely CO₂ (99.9% of 2.8M MT CO₂e). CH₄ and N₂O together are only 0.1%, a CO₂-shaped GHGRP profile, not a methane story. Component shares sum this parent's facility CO₂ / CH₄ / N₂O rows for that year, not a corporate Scope 1-3 inventory.
- CO₂
- 99.9%
- 2.8M MT
- CH₄
- 0%
- 1K MT
- N₂O
- 0.1%
- 2K MT
CO₂e neighbourhood around Westlake
Lowest and highest poles plus nearest reported parents by CO₂e, not a full GHGRP corpus board reprint.
Largest sites in a top-third parent book
Westlake - top sites (MT CO₂e)
Westlake's largest facilities by latest available reported CO₂e
High-emitter reporting timeline
Westlake - high-emitter annual GHG
EPA GHGRP 2011–2023 · million metric tons CO₂e
- Reported CO₂e in 2023
- 2.8M MT
- 13 annual EPA GHGRP reporting records
Westlake annual reported GHG emissions, 2011–2023
Westlake reported 2.8M MT CO₂e in 2023, compared with 3.1M MT in 2011 - a decline of 8.6% across the EPA GHGRP reporting record.
Multi-site facilities (3)
| Facility | Location | Emissions (MT CO2e) |
|---|---|---|
| Westlake US 2 LLC Chemicals WESTLAKE, LA | WESTLAKE, LA | 2.7M |
| Westlake Chemicals & Vinyls LLC Chemicals WESTLAKE, LA | WESTLAKE, LA | 67K |
| Westlake, Aberdeen Other ABERDEEN, MS | ABERDEEN, MS | 56K |
Where Westlake's reported CO₂e sits by state
98% of this parent's latest facility CO₂e is in Louisiana (2 sites) ; next is Mississippi at 2% . Shares are GHGRP facility rollups for this parent, not state economy totals.
Westlake reported facility CO₂e concentration by U.S. state
Westlake's reported CO₂e by EPA sector
Top sector Chemicals is 98% of this parent's facility CO₂e (2 sites) ; Other follows at 2% . Sector labels are EPA GHGRP facility industry_sector values.
Westlake reported facility CO₂e by EPA industry sector
Nationwide peers for a top-third GHGRP parent
Three EPA GHGRP peer sets for a top-third parent (2.8M MT): nearest totals, facility-book size, then per-facility intensity.
Similar reported CO₂e
Nearest parent totals (2.8M MT here).
Similar facility book
Nearest reporting-facility counts (3 here).
Similar per-facility CO₂e
Nearest average MT per facility (938K MT here).
Source: EPA GHGRP Data is based on facility self-reporting. Not environmental compliance advice
What to do with this
Using Westlake's emissions profile
- Westlake runs high-intensity per facility (938K MT CO₂e/site); see how it stacks up against the rest of the Chemicals sector on the Chemicals industry page.
- It ranks #170 of 2,289 reporting parents nationwide, compare it directly against specific peers on the compare tool.
- Not sure how to read a total-CO₂e figure or a per-facility intensity number, the how-to-read guide walks through what each field means and what it doesn't.
Related reading: How to read an emissions profile · Chemicals emitters · 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.