Exxon Mobil Corp
36 facilities · 13 states · 54.9M lbs total releases
According to the EPA Toxics Release Inventory, Exxon Mobil Corp is the reported parent of 36 Form R facilities across 13 states, disclosing 54.9M lbs of toxic releases. 27 of 624 reported chemicals carry a carcinogen classification in the TRI extract. The heaviest-reporting state by release volume is Texas (32.1M lbs). Those TRI figures remain self-reported disclosure pounds for Exxon Mobil Corp, including carcinogen-flagged substances, not a measured public-health risk score.
Release-over-release change
What changed for Exxon Mobil Corp: EPA TRI 2023 reporting year
Same facilities, both years
-7.1%
29 facilities that filed in 2022 and 2023
Whole inventory
-7.2%
12.2 million lb → 11.3 million lb, every facility that filed
Between the two reporting years, 0 facilities filed for the first time and 7 stopped filing. Facilities entering or leaving the inventory are excluded from the same-facility comparison above.
- Exxon Mobil Corp's total reported releases fell from 12.2 million lb in 2022 to 11.3 million lb in 2023, based on EPA TRI filings.
- Exxon Mobil Corp's off-site transfers fell from 391.8 thousand lb in 2022 to 117.4 thousand lb in 2023, based on EPA TRI filings.
- Exxon Mobil Corp's land releases fell from 65.1 thousand lb in 2022 to 30.6 thousand lb in 2023, based on EPA TRI filings.
- Exxon Mobil Corp's water releases fell from 2.9 million lb in 2022 to 2.6 million lb in 2023, based on EPA TRI filings.
TRI parent disclosure trail
Read Exxon Mobil Corp from filing to facility
Largest Form R sites under this parent: Exxonmobil Refining & Supply Baytown Refinery (part); Exxonmobil Baton Rouge Chemical Plant (part); Exxonmobil Baton Rouge Refinery (part); Exxonmobil Oil Corp Joliet Refinery. Neighbor parents on the disclosure ladder: Targa Resources Corp; Ineos US I Inc; Valero Energy Corp; Republic Services Inc. Largest disclosed chemicals by pounds: Nitrate compounds (water dissociable; reportable only when in aqueous solution); Ethylene; Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size); n-Hexane; Ammonia. Heaviest-reporting states in this extract: Texas; Louisiana; Illinois. Industry labels on the parent rollup: Petroleum; Chemicals; Other; Petroleum Bulk Terminals. Start from those named sites and neighbors rather than a generic parent blurb; pounds stay disclosure, not risk.
Source: U.S. Environmental Protection Agency, TRI Basic Data Files Toxics Release Inventory (TRI) · August 2026
Largest Form R sites under this parent: Exxonmobil Refining & Supply Baytown Refinery (part); Exxonmobil Baton Rouge Chemical Plant (part); Exxonmobil Baton Rouge Refinery (part); Exxonmobil Oil Corp Joliet Refinery. Neighbor parents on the disclosure ladder: Targa Resources Corp; Ineos US I Inc; Valero Energy Corp; Republic Services Inc. Largest disclosed chemicals by pounds: Nitrate compounds (water dissociable; reportable only when in aqueous solution); Ethylene; Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size); n-Hexane; Ammonia. Heaviest-reporting states in this extract: Texas; Louisiana; Illinois. Industry labels on the parent rollup: Petroleum; Chemicals; Other; Petroleum Bulk Terminals.
Exxon Mobil Corp ranks #40 of 4,988 slug-merged TRI parents by disclosed release pounds, mid-to-upper among parents, not a top-25 volume name. Exxon Mobil Corp spans 13 states in this extract, placing it among the broader national TRI parent footprints. Exxon Mobil Corp's disclosed pounds are spread across 36 facilities, no single site dominates the parent total in this extract.
Parent aggregation for Exxon Mobil Corp follows facility-reported names. Compare the named neighbors (Targa Resources Corp; Ineos US I Inc; Valero Energy Corp) before treating rank as a hazard score; TRI stays self-reported and unweighted by toxicity.
Where Exxon Mobil Corp sits among TRI parents
Exxon Mobil Corp sits on a disclosure ladder beside Targa Resources Corp and Ineos US I Inc and Valero Energy Corp and Republic Services Inc. Open those parents for a different facility count, state span, and chemical mix.
Higher disclosed volume
- Targa Resources Corp · rank #38 · 105.5M lbs
- Ineos US I Inc · rank #39 · 94.2M lbs
Lower disclosed volume
- Valero Energy Corp · rank #41 · 35.2M lbs
- Republic Services Inc · rank #42 · 34.6M lbs
Largest chemicals disclosed by Exxon Mobil Corp
Nitrate compounds (water dissociable; reportable only when in aqueous solution); Ethylene; Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size); n-Hexane; Ammonia lead the Form R pound rollup for this parent, including filings such as Exxonmobil Refining & Supply Baytown Refinery (part). Pound totals, not toxicity-weighted risk.
| Chemical | Disclosed lbs |
|---|---|
| Nitrate compounds (water dissociable; reportable only when in aqueous solution) | 12.0M lbs |
| Ethylene | 6.5M lbs |
| Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) | 6.4M lbs |
| n-Hexane | 6.1M lbs |
| Ammonia | 4.0M lbs |
Where does this company operate?
| State | Facilities | Total Releases |
|---|---|---|
| Texas | 14 | 32.1M lbs |
| Louisiana | 7 | 16.5M lbs |
| Illinois | 2 | 6.2M lbs |
| New Mexico | 1 | 28.3K lbs |
| Tennessee | 2 | 27.4K lbs |
| Massachusetts | 1 | 20.7K lbs |
| North Dakota | 1 | 17.3K lbs |
| Guam | 1 | 13.6K lbs |
| Kansas | 2 | 9.9K lbs |
| Northern Mariana Islands | 2 | 8.4K lbs |
| New Jersey | 1 | 6.3K lbs |
| California | 1 | 2.2K lbs |
| Pennsylvania | 1 | 919 lbs |
Facilities (36)
Frequently Asked Questions
How much pollution does Exxon Mobil Corp release?
How many facilities does Exxon Mobil Corp operate?
What industries and chemicals show up for Exxon Mobil Corp?
Does Exxon Mobil Corp release carcinogens?
Compare beyond the release ladder
Nationwide peers by disclosed pounds & facility count
Cross-portfolio TRI parents nearest Exxon Mobil Corp on total disclosed release pounds (54.9M lbs) and reporting facility count (36). Release-volume peers include United Global Foods US Holdings Inc, Basf Corp, Jbs USA Food Co. Facility-count peers include Kilgore Cos LLC, Smyrna Ready Mix LLC, Hubbell Inc. Neighborhoods are forced disjoint so each axis surfaces a different set of parents.
Similar disclosed release pounds
Nearest parents (≥3 facilities, ≥10k lbs) by absolute TRI disclosed pounds, not rank-adjacent ladder neighbors.
Similar facility count
Nearest parents by reporting-site count (deduped against the release-pound neighborhood).
About This Data
EPA TRI parent totals cover all media. This extract's heaviest states for the parent are Texas, Louisiana, Illinois; facility-reported names can vary across subsidiaries.
Source: U.S. Environmental Protection Agency, TRI Basic Data Files
What to do with Exxon Mobil Corp's TRI parent record
From Exxon Mobil Corp, open Exxonmobil Refining & Supply Baytown Refinery (part) or compare against Targa Resources Corp rather than reading rank alone.
- Open the largest Form R site for Exxon Mobil Corp (Exxonmobil Refining & Supply Baytown Refinery (part) in TX). Largest facility
- Compare against Ineos US I Inc, the next-higher disclosed-volume parent. Higher-volume parent
- Browse the full parent release ranking to see where Exxon Mobil Corp sits among all slug-merged TRI parents. All parent companies
Rank and peers (Targa Resources Corp, Ineos US I Inc) are disclosure volume only, not toxicity-weighted risk or enforcement status.
Use and verify this record
Exxon Mobil Corp's record groups disclosed TRI parent-company filings so readers can compare reporting context without treating the total as a measure of risk.
Company release figures are computed directly from EPA Toxic Release Inventory data; source names and the record-linking method are documented in the methodology.
Primary sources
- EPA Toxics Release Inventory Basic Data Files - annual facility-level chemical-release disclosures
PlainEnviro renders public EPA records directly from its data pipeline; no figure on this page is typed in by an editor. See the editorial standards and corrections policy for how source changes and reported errors are handled.