Year-over-year total releases
Reported on-site TRI releases in pounds (lbs), grouped by reporting year.
Facility detail
BLACKS FORK GAS PLANT
17962 COUNTY ROAD 233, GRANGER, WY, 82934
Parent company: MARATHON PETROLEUM CORP
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 | Methanol | Toluene | n-Hexane | Benzene | Xylene (mixed isomers) | Total (lbs) |
| 2024 | 270 | 314 | 231 | 73 | 152 | 1,040 |
| 2023 | 439 | 308 | 233 | 250 | 140 | 1,370 |
| 2022 | 388 | 297 | 267 | 222 | 136 | 1,319 |
▎ 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.