Year-over-year total releases
Reported on-site TRI releases in pounds (lbs), grouped by reporting year.
Facility detail
ONEOK HYDROCARBON L.P. - MONT BELVIEU NGL FRACTIONATION (MB
11350 FITZGERALD RD, BAYTOWN, TX, 77523
Parent company: ONEOK INC.
Carcinogen
— EPA classifications across all reporting years
Top chemical totals
The 10 chemicals with the highest cumulative on-site releases in pounds (lbs) across all available years.
Full release table
Rows are years. Columns show the five highest-total chemicals across all years plus each year's total release volume.
| All values in pounds (lbs) | ||||||
|---|---|---|---|---|---|---|
| Year | n-Hexane | Ammonia | Benzene | Cyclohexane | Total (lbs) | |
| 2024 | 1,726 | 2,436 | 197 | 148 | 4,507 | |
| 2023 | 928 | 3,148 | 31 | 43 | 4,150 | |
| 2022 | 12,394 | 4,630 | 31 | 18 | 17,072 | |
▎ Facilities report to EPA's TRI once they manufacture, process, or use a listed chemical above set thresholds. Once that threshold is crossed, they must report actual releases regardless of size — so a small number reflects genuine low-level discharge, not a data error.