EPA TRI Facility · Natural Gas Processing
Oneok Hydrocarbon L.P. - Mont Belvieu Ngl Fractionation (mb
Baytown, TX · Parent: Oneok Inc.
- Total releases
- 45.8K lbs
- Chemicals reported
- 4
- Carcinogens
- 1
- Primary pathway
- Off-site Transfers
MIXED Form-R mix
Oneok Hydrocarbon L.P. - Mont Belvieu Ngl Fractionation (mb: how the 45.8K lbs splits
45.8K lbs across all reported pathways
- Off-site Transfers 24.5K lbs 53.6%
- Air Releases 21.2K lbs 46.4%
Oneok Hydrocarbon L.P. - Mont Belvieu Ngl Fractionation (mb's 45.8K lbs Form-R total is MIXED - off-site transfers is 53.6% of the bar. Next segment: air releases at 46.4%. Leading chemical by pounds: Benzene.
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 MIXED pathway CARC-HEAVY
Oneok Hydrocarbon L.P. - Mont Belvieu Ngl Fractionation (mb is an EPA Toxics Release Inventory reporter in Baytown, TX, in the natural gas processing sector. It reported 19.3K lbs of releases across 4 chemicals in 2023, and 45.8K lbs in total across its 2022-2023 reporting years. That ranks 6,314 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. Oneok Hydrocarbon L.P. - Mont Belvieu Ngl Fractionation (mb is pounds #617 and chemical-count #778 at 45.8K 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: Enterprise Products Operating LLC; Mont Belvieu Fractionator; Mb Frac I II & III; Chemicals Inc. Similar-scale Natural Gas Processing peers outside Texas: Granger Gas Plant; Discovery Producer Services:larose Cryogenic Plant; Cana Gas Processing Plant; Fort Lupton Gas Processing Plant. Other Oneok Inc. sites in this extract: Stateline Complex; Mont Belvieu Fractionator. Largest disclosed chemicals by pounds: Benzene; n-Hexane; Ammonia; Cyclohexane.
Compare Oneok Hydrocarbon L.P. - Mont Belvieu Ngl Fractionation (mb with
Nearest reporters in Texas
- Enterprise Products Operating LLC Mont Belvieu · 4.6M lbs
- Mont Belvieu Fractionator Mont Belvieu · 3.3K lbs
- Mb Frac I II & III Baytown · 51.8K lbs
- Chemicals Inc Baytown · 260 lbs
Similar-scale Natural Gas Processing sites elsewhere: Granger Gas Plant (WY) · Discovery Producer Services:larose Cryogenic Plant (LA) · Cana Gas Processing Plant (OK)
Oneok Hydrocarbon L.P. - Mont Belvieu Ngl Fractionation (mb is a LIGHT · MIXED-pathway Form-R site in Baytown, TX: 45.8K lbs across 4 chemicals (1 carcinogen-classified, CARC-HEAVY). No single media clears 70% of the bar (lead segment off-site transfers at 53.6%). All figures are self-reported EPCRA §313 estimates, not measured stack emissions or a health-risk score. Scale peers include Granger Gas Plant and Discovery Producer Services:larose Cryogenic Plant.
Oneok Hydrocarbon L.P. - Mont Belvieu Ngl Fractionation (mb vs. every reporting TRI facility
Cumulative reported release pounds, with this facility marked in the national distribution
46K lbs Top 24% higher than 76% 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
Oneok Hydrocarbon L.P. - Mont Belvieu Ngl Fractionation (mb: carcinogen-lbs share on Form-R
Among the 339 Natural Gas Processing facilities in this database, Oneok Hydrocarbon L.P. - Mont Belvieu Ngl Fractionation (mb reports the 117th-largest volume (45.8K lbs). Carcinogen-classified chemicals make up 51.4% of the reported pounds, not just of the chemical count. Scale peers outside Texas include Granger Gas Plant and Discovery Producer Services:larose Cryogenic Plant.
Carcinogen-heavy means ≥50% of pounds (51.4% here), not of chemical count. EPA/IARC classification ≠ site risk.
Annual disclosure change
What changed: EPA TRI 2023 reporting year
- Oneok Hydrocarbon L.P. - Mont Belvieu Ngl Fractionation (mb's total reported releases fell from 26.4 thousand lb in 2022 to 19.3 thousand lb in 2023, based on EPA TRI filings.
- Oneok Hydrocarbon L.P. - Mont Belvieu Ngl Fractionation (mb's air releases fell from 17.1 thousand lb in 2022 to 4.2 thousand lb in 2023, based on EPA TRI filings.
- Oneok Hydrocarbon L.P. - Mont Belvieu Ngl Fractionation (mb's off-site transfers rose from 9.4 thousand lb in 2022 to 15.2 thousand lb in 2023, based on EPA TRI filings.
Oneok Hydrocarbon L.P. - Mont Belvieu Ngl Fractionation (mb Form-R facts
Compare this facility
See how Oneok Hydrocarbon L.P. - Mont Belvieu Ngl Fractionation (mb stacks up against nearby facilities and the typical reporter.
99% less than the comparison
73% 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 Oneok Hydrocarbon L.P. - Mont Belvieu Ngl Fractionation (mb releases toxic chemicals into the environment. Total: 45.8K lbs.
Emissions Trend Summary
From 2022 to 2023, total releases decreased by 27% (26.4K lbs to 19.3K lbs).
Oneok Hydrocarbon L.P. - Mont Belvieu Ngl Fractionation (mb: annual Form-R pounds
LIGHT site · MIXED pathway · TRI years 2022–2023
- 2022 0
- 2023 0
What this shows Oneok Hydrocarbon L.P. - Mont Belvieu Ngl Fractionation (mb year-over-year reported totals (decreased by 27% from 2022 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: Benzene.
| Year | Total | Chemicals |
|---|---|---|
| 2022 | 26.4K lbs | 4 |
| 2023 | 19.3K lbs | 4 |
Chemical Releases
Aggregated across all reporting years (2022–2023). 1 of 4 chemicals are carcinogens. Sorted by total release volume.
| Chemical | Total | Flags |
|---|---|---|
| Benzene | 23.5K lbs | Carcinogen |
| n-Hexane | 13.3K lbs | - |
| Ammonia | 7.8K lbs | - |
| Cyclohexane | 1.1K lbs | - |
Oneok Hydrocarbon L.P. - Mont Belvieu Ngl Fractionation (mb in Chambers
Nearest TRI Facilities to Oneok Hydrocarbon L.P. - Mont Belvieu Ngl Fractionation (mb
Closest other reporters in Texas - including Enterprise Products Operating LLC, Mont Belvieu Fractionator, Mb Frac I II & III, 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. Granger Gas Plant, Discovery Producer Services:larose Cryogenic Plant, Cana Gas Processing Plant.
Compare beyond Texas
Nationwide peers by reported pounds & chemical count
Cross-state TRI reporters nearest Oneok Hydrocarbon L.P. - Mont Belvieu Ngl Fractionation (mb on cumulative reported pounds (45.8K lbs) and distinct chemical count (4). Release-pound peers include Kenway Composites, Ardagh Glass Inc, Hdi Landing Gear USA Inc. Chemical-count peers include Hamilton Sundstrand de Puerto Rico Inc., Abb Installation Products Caribe LLC, Solenis 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.
- Kenway Composites Augusta, ME · Plastics and Rubber 45.8K lbs reported
- Ardagh Glass Inc Sapulpa, OK · Nonmetallic Mineral Product 45.7K lbs reported
- Hdi Landing Gear USA Inc Strongsville, OH · Transportation Equipment 45.7K lbs reported
- Ineos Composites Jacksonville, AR · Chemicals 45.8K lbs reported
Similar chemical count
Nearest out-of-state reporters by distinct Form-R chemicals (deduped against the release-pound neighborhood).
- Hamilton Sundstrand de Puerto Rico Inc. Santa Isabel, PR · Transportation Equipment 4 chemicals
- Abb Installation Products Caribe LLC Vega Baja, PR · Electrical Equipment 4 chemicals
- Solenis LLC Chicopee, MA · Chemicals 4 chemicals
- Adhesive Applications Inc. - O'Neill St Easthampton Easthampton, MA · Miscellaneous Manufacturing 4 chemicals
Other Oneok Inc. Facilities
Same-parent TRI sites ranked by reported releases - including Stateline Complex, Mont Belvieu Fractionator.
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, Ammonia, Cyclohexane; nearby reporters include Enterprise Products Operating LLC. Oneok Hydrocarbon L.P. - Mont Belvieu Ngl Fractionation (mb stamps LIGHT volume · MIXED 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 Oneok Hydrocarbon L.P. - Mont Belvieu Ngl Fractionation (mb TRI extract (LIGHT · MIXED · CARC-HEAVY · lead Benzene) joins EPA Form-R filings with facility identity - reported pounds, not a health-risk rating.
Oneok Hydrocarbon L.P. - Mont Belvieu Ngl Fractionation (mb totals are self-reported EPCRA §313 estimates for Baytown, TX, latest year 2023. Form-R rows span 2022–2023 (2 years). NAICS 211130 · Natural Gas Processing. 0.6% of Chambers TRI pounds in this extract. Nearest ABS peer: Kenway Composites (Δ 7 lbs). Pounds ≠ exposure.
Oneok Hydrocarbon L.P. - Mont Belvieu Ngl Fractionation (mb stamps LIGHT · MIXED pathway (off-site transfers leads at 53.6%). Pipeline-rendered EPA Form-R only - no editor-typed pounds. 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