EPA TRI Facility · Natural Gas Processing
Mont Belvieu Fractionator
Mont Belvieu, TX · Parent: Oneok Inc.
- Total releases
- 3.3K lbs
- Chemicals reported
- 3
- Carcinogens
- 1
- Primary pathway
- Off-site Transfers
Reported-total composition
How the reported total is distributed
3.3K lbs across all reported pathways
- Off-site Transfers 3.0K lbs 93.0%
- Air Releases 227 lbs 7.0%
The segments reconcile to the cumulative total shown above. Off-site transfers are shown separately from releases to air, water, and land.
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.
LIGHT volume OFFSITE pathway CARC-HEAVY
Mont Belvieu Fractionator is an EPA Toxics Release Inventory reporter in Mont Belvieu, TX, in the natural gas processing sector. It reported 3.3K lbs of releases across 3 chemicals in 2023. That ranks 11,974 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. Mont Belvieu Fractionator is pounds #1153 and chemical-count #1035 at 3.3K 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). Pounds reported are not a measure of toxicity or health risk. Nearest other TRI reporters: Mb Frac I II & III; Enterprise Products Operating LLC; Chemicals Inc; Mb Frac Vi&viii. Similar-scale Natural Gas Processing peers outside Texas: Etc Northeast Pipeline LLC Revolution Cryogenic Plant; Roadrunner Gas Plant; Tebone Fractionation Plant; Bear Den Gas Plant. Other Oneok Inc. sites in this extract: Oneok Hydrocarbon L.P. - Mont Belvieu Ngl Fractionation (mb; Stateline Complex. Largest disclosed chemicals by pounds: Benzene; n-Hexane; Cyclohexane.
Mont Belvieu Fractionator has reported 3.3K lbs of toxic releases across 3 chemicals to the EPA Toxic Release Inventory, based on annual facility disclosures from 2019 through 2023. Of the chemicals reported, 1 is classified as carcinogen, representing 33% of the facility's chemical profile. The facility operates in the Natural Gas Processing sector. The primary release pathway is off-site transfers, accounting for 93% of total releases. All release data shown below is self-reported to the EPA under the Emergency Planning and Community Right-to-Know Act (EPCRA) Section 313.
Mont Belvieu Fractionator vs. every reporting TRI facility
Cumulative reported release pounds, with this facility marked in the national distribution
3.3K lbs Top 46% higher than 54% 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
Where this facility sits in the TRI record
Among the 339 Natural Gas Processing facilities in this database, Mont Belvieu Fractionator reports the 289th-largest volume (3.3K lbs). Its reported volume is concentrated rather than spread: Benzene alone is 89.3% of the total. Carcinogen-classified chemicals make up 89.3% of the reported pounds, not just of the chemical count.
Placement is computed from reported TRI pounds in this database. Thresholds are fixed across every facility page: concentrated ≥60% of volume in one chemical, county-dominant ≥25% of the county total, carcinogen-heavy ≥50% of pounds. Share-based statements are shown only for sites reporting at least 1,000 lbs, because a share of a very small total is not a meaningful signal. Reported pounds are self-reported estimates and do not measure toxicity or health risk.
Quick Facts
Compare this facility
See how Mont Belvieu Fractionator stacks up against nearby facilities and the typical reporter.
94% less than the comparison
25% less 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 Mont Belvieu Fractionator releases toxic chemicals into the environment. Total: 3.3K lbs.
Chemical Releases
Aggregated across all reporting years (2023–2023). 1 of 3 chemicals are carcinogens. Sorted by total release volume.
| Chemical | Total | Flags |
|---|---|---|
| Benzene | 2.9K lbs | Carcinogen |
| n-Hexane | 190 lbs | - |
| Cyclohexane | 159 lbs | - |
Location
Nearest TRI Facilities to Mont Belvieu Fractionator
Closest other reporters in Texas - including Mb Frac I II & III, Enterprise Products Operating LLC, Chemicals Inc, ordered by distance.
Showing 8 of 2,015 other reporting facilities in Texas.
Similar Natural Gas Processing Facilities
Other Natural Gas Processing facilities with similar total release volumes (±80%), outside Texas - e.g. Etc Northeast Pipeline LLC Revolution Cryogenic Plant, Roadrunner Gas Plant, Tebone Fractionation Plant.
Compare beyond Texas
Nationwide peers by reported pounds & chemical count
Cross-state TRI reporters nearest Mont Belvieu Fractionator on cumulative reported pounds (3.3K lbs) and distinct chemical count (3). Release-pound peers include Svc Manufacturing Inc, Covalence Coated Products, Univar Solutions-Phoenix Px. Chemical-count peers include Industrial C&s of Pr LLC Arecibo Plant, Island Litho Corp., Fenwal International Inc. 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.
- Svc Manufacturing Inc Tolleson, AZ · Beverages 3.3K lbs reported
- Covalence Coated Products Columbus, GA · Plastics and Rubber 3.3K lbs reported
- Univar Solutions-Phoenix Px Phoenix, AZ · Chemical Wholesalers 3.3K lbs reported
- Omnimax International LLC Lancaster, PA · Fabricated Metals 3.3K lbs reported
Similar chemical count
Nearest out-of-state reporters by distinct Form-R chemicals (deduped against the release-pound neighborhood).
Other Oneok Inc. Facilities
Same-parent TRI sites ranked by reported releases - including Oneok Hydrocarbon L.P. - Mont Belvieu Ngl Fractionation (mb, Stateline Complex.
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 Benzene, n-Hexane, Cyclohexane; nearby reporters include Mb Frac I II & III. Mont Belvieu Fractionator stamps LIGHT volume · OFFSITE pathway · CARC-HEAVY 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 Mont Belvieu Fractionator record combines EPA TRI filings, facility identity, and compliance context without turning reported releases into a health-risk rating.
TRI release totals are self-reported estimates, not measured stack emissions. The methodology explains how records are joined, computed, and refreshed.
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.
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