EPA GHGRP · reporting year 2023 · Chemicals
Westlake Chemical - top-third GHGRP parent
According to the EPA's Greenhouse Gas Reporting Program (GHGRP), an upper-third Scope 1 reporter: 9 facilities across 4 states (4.5M MT CO₂e in 2023).
- MT CO₂e (latest facility reports)
- 4.5M
- Reporting facilities
- 9
- States covered
- 4
- Overall rank
- #118
Data updated May 2026
According to the EPA GHGRP, Westlake Chemical reported 4.5M MT CO₂e in 2023 across 9 facilities in 4 states (ranks among the top 10% of U.S. corporate GHG emitters (#118 of 2,289)) Emissions increased 15% over the tracked period.
- Overall rank #118 of 2,289
- #13 in Chemicals
- +15.2% since 2011
Westlake Chemical vs all U.S. GHGRP parent companies
Where this parent's reported Scope 1 CO₂e sits among every EPA GHGRP-reporting company
4,492,472 118th of 2289 higher than 2,171 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 Chemical spreads its footprint vs Chemicals peers
Facility count against total reported CO₂e for 20 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 (8 facilities, 8.79M MT).
You are here: Westlake Chemical.
Chemicals peer footprint table: Westlake Chemical, 9 facilities, 4.49M 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. Basf, 8 facilities, 3.79M MT CO2e. Occidental Petroleum, 7 facilities, 3.5M MT CO2e.
EPA GHGRP inventory plate
Parent westlake-chemical · 2023 #118 · 4.5M MT
CO2E-MID · TOP-DECILE · PHOTO-FINISH · FAC-MULTI · SPAN-MULTI · SECTOR-CHEMICALS · TREND-UP · BOOK-RICH
- CO2E-MID 4.5M MT
- TOP-DECILE #118/2289
- PHOTO-FINISH Hawaiian Electric Ind… · Power Plants
- FAC-MULTI 9 facilities
- SPAN-MULTI 4 states
- SECTOR-CHEMICALS Chemicals
- TREND-UP +15% since 2011
- BOOK-RICH 7/8 fields
Nearest CO₂e peer: Hawaiian Electric Industries · Power Plants (±1K 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 (99.4% of 4.5M MT CO₂e). CH₄ and N₂O together are only 0.6%, 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
- 99.4%
- 4.5M MT
- CH₄
- 0.3%
- 14K MT
- N₂O
- 0.3%
- 13K MT
CO₂e neighbourhood around Westlake Chemical
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 Chemical - top sites (MT CO₂e)
Westlake Chemical's largest facilities by latest available reported CO₂e
Emissions growth across reporting years
Westlake Chemical - rising annual GHG
EPA GHGRP 2011–2023 · million metric tons CO₂e
- Reported CO₂e in 2023
- 4.5M MT
- 13 annual EPA GHGRP reporting records
Westlake Chemical annual reported GHG emissions, 2011–2023
Westlake Chemical reported 4.5M MT CO₂e in 2023, compared with 3.9M MT in 2011 - a rise of 15.2% across the EPA GHGRP reporting record.
Multi-site facilities (9)
| Facility | Location | Emissions (MT CO2e) |
|---|---|---|
| Westlake Chemicals and Vinyls, LLC Chemicals PLAQUEMINE, LA | PLAQUEMINE, LA | 1.2M |
| WESTLAKE PETROCHEMICALS LP - ETHYLENE MANUFACTURING COMPLEX (PETRO I/PETRO II) Chemicals SULPHUR, LA | SULPHUR, LA | 1.1M |
| LACC, LLC US / Lotte Chemical Louisiana LLC Chemicals Westlake, LA | Westlake, LA | 689K |
| Eagle Natrium LLC - Natrium Plant Chemicals Proctor, WV | Proctor, WV | 599K |
| WESTLAKE VINYLS INC Chemicals CALVERT CITY, KY | CALVERT CITY, KY | 490K |
| WESTLAKE VINYLS CO LP Chemicals GEISMAR, LA | GEISMAR, LA | 261K |
| WESTLAKE STYRENE LLC - STYRENE MONOMER PRODUCTION FACILITY Chemicals SULPHUR, LA | SULPHUR, LA | 166K |
| WESTLAKE POLYMERS LP - POLYETHYLENE I & II PLANTS Other SULPHUR, LA | SULPHUR, LA | 27K |
| Westlake Longview Corp. Other Longview, TX | Longview, TX | 24K |
Where Westlake Chemical's reported CO₂e sits by state
75.2% of this parent's latest facility CO₂e is in Louisiana (6 sites) ; next is West Virginia at 13.3% . Shares are GHGRP facility rollups for this parent, not state economy totals.
Westlake Chemical reported facility CO₂e concentration by U.S. state
Westlake Chemical's reported CO₂e by EPA sector
Top sector Chemicals is 98.9% of this parent's facility CO₂e (7 sites) ; Other follows at 1.1% . Sector labels are EPA GHGRP facility industry_sector values.
Westlake Chemical 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 (4.5M MT): nearest totals, facility-book size, then per-facility intensity.
Similar reported CO₂e
Nearest parent totals (4.5M MT here).
Similar facility book
Nearest reporting-facility counts (9 here).
Similar per-facility CO₂e
Nearest average MT per facility (499K MT here).
Source: EPA GHGRP Data is based on facility self-reporting. Not environmental compliance advice
What to do with this
Using Westlake Chemical's emissions profile
- Westlake Chemical runs high-intensity per facility (499K MT CO₂e/site); see how it stacks up against the rest of the Chemicals sector on the Chemicals industry page.
- It ranks #118 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.