EPA TRI Facility · Petroleum
Par Montana Billings Refinery
Billings, MT · Parent: Par Pacific Holdings Inc
- Total releases
- 881.7K lbs
- Chemicals reported
- 38
- Carcinogens
- 12
- Primary pathway
- Air Releases
AIR Form-R mix
Par Montana Billings Refinery: how the 881.7K lbs splits
881.7K lbs across all reported pathways
- Air Releases 693.1K lbs 78.6%
- Off-site Transfers 140.3K lbs 15.9%
- Land Disposal 28.1K lbs 3.2%
- Water Discharges 20.2K lbs 2.3%
Par Montana Billings Refinery's 881.7K lbs Form-R total is AIR - air releases is 78.6% of the bar. Next segment: off-site transfers at 15.9%. Leading chemical by pounds: Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size).
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.
MID volume AIR pathway CARC-LEAN
Par Montana Billings Refinery is an EPA Toxics Release Inventory reporter in Billings, MT, in the petroleum sector. It reported 157.8K lbs of releases across 32 chemicals in 2023, and 881.7K lbs in total across its 2019-2023 reporting years. That ranks 1,415 of 25,986 TRI facilities nationwide by cumulative reported pounds, counting each facility over however many years it has filed. In Montana's 67 reporting TRI sites, pounds #1 is not chemical-count #1. Par Montana Billings Refinery is pounds #6 and chemical-count #3 at 881.7K lbs. Montana Resources LLC leads reported pounds (215.2M lbs) at 12 chemicals (chemical-count #11). Phillips 66 Co Billings Refinery leads chemical count at 39 chemicals (465.0K lbs, pounds #16). Reported volume rose against 2022. Pounds reported are not a measure of toxicity or health risk. Nearest other TRI reporters: Montana Sulphur & Chemical Co; Loveland Products Inc-Billings (formerly Transbas); Knife River Billings East Site; Cityservicevalcon LLC Billings Bulk Facility. Similar-scale Petroleum peers outside Montana: Calumet Shreveport Refining LLC; Hunt Refining Co a Corp; Certainteed Corp.; Par Hawaii Refining LLC. Other Par Pacific Holdings Inc sites in this extract: US Oil & Refining Co; Wyoming Refining Co; Par West Refinery; Par Montana Spokane Terminal. Largest disclosed chemicals by pounds: Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size); Ethylene glycol; n-Hexane; Diethanolamine.
Par Montana Billings Refinery stamps MID volume with a dominant AIR pathway (78.6% air releases) across 38 chemicals · 12 carcinogen-classified. Cumulative Form-R extract: 881.7K lbs (2019–2023). All figures are self-reported EPCRA §313 estimates, not measured stack emissions or a health-risk score. Scale peers include Calumet Shreveport Refining LLC and Hunt Refining Co a Corp.
Par Montana Billings Refinery vs. every reporting TRI facility
Cumulative reported release pounds, with this facility marked in the national distribution
882K lbs Top 5% higher than 95% 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
Par Montana Billings Refinery inside Yellowstone's TRI pounds
Among the 902 Petroleum facilities in this database, Par Montana Billings Refinery reports the 82nd-largest volume, placing it in the top 9.1% of its sector. This one site accounts for 25.6% of every pound reported in Yellowstone. Scale peers outside Montana include Calumet Shreveport Refining LLC and Hunt Refining Co a Corp.
County-dominant here means ≥25% of Yellowstone's reported pounds (3.5M lbs county total). Shares only print when the site reports ≥1,000 lbs.
Annual disclosure change
What changed: EPA TRI 2023 reporting year
- Par Montana Billings Refinery's total reported releases rose from 153.8 thousand lb in 2022 to 157.8 thousand lb in 2023, based on EPA TRI filings.
- Par Montana Billings Refinery's land releases fell from 86 lb in 2022 to 4 lb in 2023, based on EPA TRI filings.
- Par Montana Billings Refinery's off-site transfers rose from 19.3 thousand lb in 2022 to 31.6 thousand lb in 2023, based on EPA TRI filings.
- Par Montana Billings Refinery's water releases rose from 5.1 thousand lb in 2022 to 6.2 thousand lb in 2023, based on EPA TRI filings.
Par Montana Billings Refinery Form-R facts
Compare this facility
See how Par Montana Billings Refinery stacks up against nearby facilities and the typical reporter.
11.7× more than the comparison
12.7× more 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 Par Montana Billings Refinery releases toxic chemicals into the environment. Total: 881.7K lbs.
Emissions Trend Summary
From 2019 to 2023, total releases decreased by 17% (190.6K lbs to 157.8K lbs).
Par Montana Billings Refinery: annual Form-R pounds
MID site · AIR pathway · TRI years 2019–2023
- 2019 0
- 2020 0
- 2021 0
- 2022 0
- 2023 0
What this shows Par Montana Billings Refinery year-over-year reported totals (decreased by 17% from 2019 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: Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size).
| Year | Total | Chemicals |
|---|---|---|
| 2019 | 190.6K lbs | 34 |
| 2020 | 180.1K lbs | 35 |
| 2021 | 199.3K lbs | 34 |
| 2022 | 153.8K lbs | 33 |
| 2023 | 157.8K lbs | 32 |
Chemical Releases
Aggregated across all reporting years (2019–2023). 12 of 38 chemicals are carcinogens. Sorted by total release volume.
Par Montana Billings Refinery · AIR-pathway site
Nearest TRI Facilities to Par Montana Billings Refinery
Closest other reporters in Montana - including Montana Sulphur & Chemical Co, Loveland Products Inc-Billings (formerly Transbas), Knife River Billings East Site, ordered by distance.
Showing 8 of 66 other reporting facilities in Montana.
Similar Petroleum Facilities
Other Petroleum facilities with similar total release volumes (±80%), outside Montana - e.g. Calumet Shreveport Refining LLC, Hunt Refining Co a Corp, Certainteed Corp..
Compare beyond Montana
Nationwide peers by reported pounds & chemical count
Cross-state TRI reporters nearest Par Montana Billings Refinery on cumulative reported pounds (881.7K lbs) and distinct chemical count (38). Release-pound peers include Sterling Specialty Chemicals LLC, Colorado Springs Utilities Ray Nixon Power Plant, Okeechobee Clean Energy Center. Chemical-count peers include Monroe Energy Llc-Trainer Refinery, Ohio Refining Co, Citgo Petroleum Corp. 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.
- Sterling Specialty Chemicals LLC Mobile, AL · Chemicals 882.2K lbs reported
- Colorado Springs Utilities Ray Nixon Power Plant Fountain, CO · Electric Utilities 882.6K lbs reported
- Okeechobee Clean Energy Center Okeechobee, FL · Electric Utilities 879.5K lbs reported
- Arauco Na Grayling Particleboard Grayling, MI · Wood Products 885.1K lbs reported
Similar chemical count
Nearest out-of-state reporters by distinct Form-R chemicals (deduped against the release-pound neighborhood).
Other Par Pacific Holdings Inc Facilities
Same-parent TRI sites ranked by reported releases - including US Oil & Refining Co, Wyoming Refining Co, Par West Refinery.
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 Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size), Ethylene glycol, n-Hexane, Diethanolamine; nearby reporters include Montana Sulphur & Chemical Co. Par Montana Billings Refinery stamps MID volume · AIR pathway · CARC-LEAN 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 Par Montana Billings Refinery TRI extract (MID · AIR · CARC-LEAN · lead Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)) joins EPA Form-R filings with facility identity - reported pounds, not a health-risk rating.
Par Montana Billings Refinery totals are self-reported EPCRA §313 estimates for Billings, MT, latest year 2023. Form-R rows span 2019–2023 (5 years). NAICS 324110 · Petroleum. 25.6% of Yellowstone TRI pounds in this extract. Nearest ABS peer: Sterling Specialty Chemicals LLC (Δ 553 lbs). Pounds ≠ exposure.
Par Montana Billings Refinery stamps MID volume · AIR pathway · CARC-LEAN · lead Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size). PlainEnviro renders this EPA Form-R extract from its pipeline; no figure is typed in by an editor. 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