EPA TRI Facility · Petroleum
Exxonmobil Refining & Supply Baytown Refinery (part)
Baytown, TX · Parent: Exxon Mobil Corp
- Total releases
- 10.9M lbs
- Chemicals reported
- 47
- Carcinogens
- 15
- Primary pathway
- Air Releases
AIR Form-R mix
Exxonmobil Refining & Supply Baytown Refinery (part): how the 10.9M lbs splits
10.9M lbs across all reported pathways
- Air Releases 8.2M lbs 75.4%
- Water Discharges 2.6M lbs 24.2%
- Off-site Transfers 25.0K lbs 0.2%
- Land Disposal 17.8K lbs 0.2%
Exxonmobil Refining & Supply Baytown Refinery (part)'s 10.9M lbs Form-R total is AIR - air releases is 75.4% of the bar. Next segment: water discharges at 24.2%. Leading chemical by pounds: Nitrate compounds (water dissociable; reportable only when in aqueous solution).
Carcinogen-classified pounds vs other reported pounds
Same cumulative TRI total as above, split by EPA/IARC carcinogen classification on each chemical: pounds share, not chemical count. Classification is not a site health-risk score.
HEAVY volume AIR pathway CARC-LEAN
Exxonmobil Refining & Supply Baytown Refinery (part) is an EPA Toxics Release Inventory reporter in Baytown, TX, in the petroleum sector. It reported 2.1M lbs of releases across 42 chemicals in 2023, and 10.9M lbs in total across its 2019-2023 reporting years. That ranks 190 of 25,986 TRI facilities nationwide by cumulative reported pounds, counting each facility over however many years it has filed. In Texas's 2,016 reporting TRI sites, pounds #1 is not chemical-count #1. Exxonmobil Refining & Supply Baytown Refinery (part) is pounds #16 and chemical-count #21 at 10.9M lbs. Ascend Performance Materials-Chocolate Bayou Plant leads reported pounds (94.0M lbs) at 36 chemicals (chemical-count #35). Veolia Es Technical Solutions LLC Port Arthur Facility leads chemical count at 246 chemicals (1.5M lbs, pounds #112). Reported volume fell against 2022. Pounds reported are not a measure of toxicity or health risk. Nearest other TRI reporters: Eco Services Operations Corp.; Exxonmobil Chemical Co Baytown Olefins Plant (part); Si Group Baytown; Granite Inliner LLC - Baytown. Similar-scale Petroleum peers outside Texas: Chevron Products Co. Div of Chevron USA Inc.; Citgo Petroleum Corp; Wood River Refinery; Bp Products Na Whiting Business Unit. Other Exxon Mobil Corp sites in this extract: Exxonmobil Baton Rouge Chemical Plant (part); Exxonmobil Baton Rouge Refinery (part); Exxonmobil Oil Corp Joliet Refinery; Exxonmobil Baytown Chemical Plant (part). Largest disclosed chemicals by pounds: Nitrate compounds (water dissociable; reportable only when in aqueous solution); Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size); Toluene; Ammonia.
Exxonmobil Refining & Supply Baytown Refinery (part) stamps HEAVY volume with a dominant AIR pathway (75.4% air releases) across 47 chemicals · 15 carcinogen-classified. Cumulative Form-R extract: 10.9M lbs (2019–2023). All figures are self-reported EPCRA §313 estimates, not measured stack emissions or a health-risk score. Scale peers include Chevron Products Co. Div of Chevron USA Inc. and Citgo Petroleum Corp.
Exxonmobil Refining & Supply Baytown Refinery (part) vs. every reporting TRI facility
Cumulative reported release pounds, with this facility marked in the national distribution
11M lbs Top 1% higher than 99% of 25,986 reporting TRI facilities
Each bar is a $1M-wide band; taller bars hold more reporting TRI facilities. The dashed line and filled bar mark this facility. Hover, focus, or tap a bar for its full count, share, and position.
Source U.S. Environmental Protection Agency, Toxics Release Inventory · 2023 reporting year
Exxonmobil Refining & Supply Baytown Refinery (part) in the Petroleum sector extract
Among the 902 Petroleum facilities in this database, Exxonmobil Refining & Supply Baytown Refinery (part) reports the 7th-largest volume, placing it in the top 0.8% of its sector. Scale peers outside Texas include Chevron Products Co. Div of Chevron USA Inc. and Citgo Petroleum Corp.
Sector rank uses reported TRI pounds only. Share callouts need ≥1,000 lbs so tiny totals cannot mint a false signal.
Annual disclosure change
What changed: EPA TRI 2023 reporting year
- Exxonmobil Refining & Supply Baytown Refinery (part)'s total reported releases fell from 2.2 million lb in 2022 to 2.1 million lb in 2023, based on EPA TRI filings.
- Exxonmobil Refining & Supply Baytown Refinery (part)'s off-site transfers fell from 9.0 thousand lb in 2022 to 3.3 thousand lb in 2023, based on EPA TRI filings.
- Exxonmobil Refining & Supply Baytown Refinery (part)'s land releases fell from 5.6 thousand lb in 2022 to 2.9 thousand lb in 2023, based on EPA TRI filings.
- Exxonmobil Refining & Supply Baytown Refinery (part)'s water releases fell from 616.9 thousand lb in 2022 to 549.8 thousand lb in 2023, based on EPA TRI filings.
Exxonmobil Refining & Supply Baytown Refinery (part) Form-R facts
Compare this facility
See how Exxonmobil Refining & Supply Baytown Refinery (part) stacks up against nearby facilities and the typical reporter.
243.9× more than the comparison
6.7× more than the comparison
Comparison reflects reported pounds and chemical counts, not toxicity or health risk. Averages cover facilities reporting any release.
How does this facility release toxic chemicals?
How Exxonmobil Refining & Supply Baytown Refinery (part) releases toxic chemicals into the environment. Total: 10.9M lbs.
Emissions Trend Summary
From 2019 to 2023, total releases decreased by 14% (2.4M lbs to 2.1M lbs).
Exxonmobil Refining & Supply Baytown Refinery (part): annual Form-R pounds
HEAVY site · AIR pathway · TRI years 2019–2023
- 2019
- 2020
- 2021
- 2022
- 2023
What this shows Exxonmobil Refining & Supply Baytown Refinery (part) year-over-year reported totals (decreased by 14% from 2019 to 2023). TRI figures are self-reported estimates and can swing with production, waste handling, and reporting changes, not only with controls. Lead chemical in the extract: Nitrate compounds (water dissociable; reportable only when in aqueous solution).
| Year | Total | Chemicals |
|---|---|---|
| 2019 | 2.4M lbs | 44 |
| 2020 | 2.1M lbs | 42 |
| 2021 | 2.1M lbs | 40 |
| 2022 | 2.2M lbs | 42 |
| 2023 | 2.1M lbs | 42 |
Chemical Releases
Aggregated across all reporting years (2019–2023). 15 of 47 chemicals are carcinogens. Sorted by total release volume.
Exxonmobil Refining & Supply Baytown Refinery (part) · AIR-pathway site
Nearest TRI Facilities to Exxonmobil Refining & Supply Baytown Refinery (part)
Closest other reporters in Texas - including Eco Services Operations Corp., Exxonmobil Chemical Co Baytown Olefins Plant (part), Si Group Baytown, ordered by distance.
Showing 8 of 2,015 other reporting facilities in Texas.
Similar Petroleum Facilities
Other Petroleum facilities with similar total release volumes (±80%), outside Texas - e.g. Chevron Products Co. Div of Chevron USA Inc., Citgo Petroleum Corp, Wood River Refinery.
Compare beyond Texas
Nationwide peers by reported pounds & chemical count
Cross-state TRI reporters nearest Exxonmobil Refining & Supply Baytown Refinery (part) on cumulative reported pounds (10.9M lbs) and distinct chemical count (47). Release-pound peers include The Dow Chemical Co - Louisiana Operations, U.S. Tva Shawnee Fossil Plant, J H Campbell Generating Plant. Chemical-count peers include Continental Cement Co LLC, Chevron Products Co Pascagoula Refinery, Flint Hills Resources Pine Bend LLC. Neighborhoods are forced disjoint so each axis surfaces a different set of sites.
Similar reported release pounds
Nearest out-of-state reporters (≥1,000 lbs) by absolute TRI pounds, not same-industry or same-county neighbors.
- The Dow Chemical Co - Louisiana Operations Plaquemine, LA · Chemicals 10.9M lbs reported
- U.S. Tva Shawnee Fossil Plant West Paducah, KY · Electric Utilities 10.9M lbs reported
- J H Campbell Generating Plant West Olive, MI · Electric Utilities 10.9M lbs reported
- Cardinal Plant Brilliant, OH · Electric Utilities 10.9M lbs reported
Similar chemical count
Nearest out-of-state reporters by distinct Form-R chemicals (deduped against the release-pound neighborhood).
- Continental Cement Co LLC Hannibal, MO · Nonmetallic Mineral Product 47 chemicals
- Chevron Products Co Pascagoula Refinery Pascagoula, MS · Petroleum 46 chemicals
- Flint Hills Resources Pine Bend LLC Rosemount, MN · Petroleum 48 chemicals
- Chevron Products Co Richmond Refinery Richmond, CA · Petroleum 46 chemicals
Other Exxon Mobil Corp Facilities
Same-parent TRI sites ranked by reported releases - including Exxonmobil Baton Rouge Chemical Plant (part), Exxonmobil Baton Rouge Refinery (part), Exxonmobil Oil Corp Joliet Refinery.
About TRI Data
Data as of 2023 reporting year. Source: U.S. Environmental Protection Agency (EPA) Toxic Release Inventory.
On this page the largest disclosed chemicals include Nitrate compounds (water dissociable; reportable only when in aqueous solution), Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size), Toluene, Ammonia; nearby reporters include Eco Services Operations Corp.. Exxonmobil Refining & Supply Baytown Refinery (part) stamps HEAVY volume · AIR pathway · CARC-LEAN carcinogen-lbs on this Form-R extract. Totals are self-reported estimates under EPCRA §313, not measured stack emissions or a health-risk score.
Use and verify this record
This Exxonmobil Refining & Supply Baytown Refinery (part) TRI extract (HEAVY · AIR · CARC-LEAN · lead Nitrate compounds (water dissociable; reportable only when in aqueous solution)) joins EPA Form-R filings with facility identity - reported pounds, not a health-risk rating.
Exxonmobil Refining & Supply Baytown Refinery (part) totals are self-reported EPCRA §313 estimates for Baytown, TX, latest year 2023. Form-R rows span 2019–2023 (5 years). NAICS 324110 · Petroleum. 5.0% of Harris TRI pounds in this extract. Nearest ABS peer: The Dow Chemical Co - Louisiana Operations (Δ 11.9K lbs). Pounds ≠ exposure.
Exxonmobil Refining & Supply Baytown Refinery (part) stamps HEAVY volume · AIR pathway · CARC-LEAN · lead Nitrate compounds (water dissociable; reportable only when in aqueous solution). PlainEnviro renders this EPA Form-R extract from its pipeline; no figure is typed in by an editor. Corrections: editorial policy.
All federal data sources used on this page
- EPA Toxics Release Inventory (TRI) Basic Data Files - annual self-reported chemical-release filings. epa.gov
- EPA TRI Program reference - how chemicals and reported releases are counted. epa.gov
- EPA Facility Registry Service - facility location and identity. epa.gov
- EPA ECHO - regulatory and compliance context. epa.gov
- EPA Envirofacts - the EPA data warehouse exposing these datasets. epa.gov