EPA TRI Facility · Petroleum
Wyoming Refining Co
Newcastle, WY · Parent: Par Pacific Holdings Inc
- Total releases
- 76.4K lbs
- Chemicals reported
- 23
- Carcinogens
- 6
- Primary pathway
- Air Releases
MIXED Form-R mix
Wyoming Refining Co: how the 76.4K lbs splits
76.4K lbs across all reported pathways
- Air Releases 52.5K lbs 68.8%
- Land Disposal 20.5K lbs 26.9%
- Water Discharges 3.3K lbs 4.3%
- Off-site Transfers 10 lbs <0.1%
Wyoming Refining Co's 76.4K lbs Form-R total is MIXED - air releases is 68.8% of the bar. Next segment: land disposal at 26.9%. Leading chemical by pounds: Toluene.
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-LEAN
Wyoming Refining Co is an EPA Toxics Release Inventory reporter in Newcastle, WY, in the petroleum sector. It reported 16.8K lbs of releases across 23 chemicals in 2023, and 76.4K lbs in total across its 2019-2023 reporting years. That ranks 5,171 of 25,986 TRI facilities nationwide by cumulative reported pounds, counting each facility over however many years it has filed. In Wyoming's 70 reporting TRI sites, pounds #1 is not chemical-count #1. Wyoming Refining Co is pounds #25 and chemical-count #7 at 76.4K lbs. Dyno Nobel Inc-Cheyenne Plant leads reported pounds (27.1M lbs) at 8 chemicals (chemical-count #19). Hf Sinclair Parco Refining LLC leads chemical count at 36 chemicals (1.5M lbs, pounds #10). Reported volume rose against 2022. Pounds reported are not a measure of toxicity or health risk. Nearest other TRI reporters: Western Gas Resources Hilight Gas Plant; Nelson Brothers Mining Services LLC; Pacificorp Wyodak Plant; Black Hills Corp - Neil Simpson Complex. Similar-scale Petroleum peers outside Wyoming: Calumet Branded Products LLC; Scott Biodiesel/greenville Terminal; Industrial Oils Unlimited LLC; Marathon Dickinson Refinery. Other Par Pacific Holdings Inc sites in this extract: Par Montana Billings Refinery; US Oil & Refining Co; Par West Refinery; Par Montana Spokane Terminal. Largest disclosed chemicals by pounds: Toluene; n-Hexane; Propylene; Xylene (mixed isomers).
Wyoming Refining Co is a LIGHT · MIXED-pathway Form-R site in Newcastle, WY: 76.4K lbs across 23 chemicals (6 carcinogen-classified, CARC-LEAN). No single media clears 70% of the bar (lead segment air releases at 68.8%). All figures are self-reported EPCRA §313 estimates, not measured stack emissions or a health-risk score. Scale peers include Calumet Branded Products LLC and Scott Biodiesel/greenville Terminal.
Wyoming Refining Co vs. every reporting TRI facility
Cumulative reported release pounds, with this facility marked in the national distribution
76K lbs Top 20% higher than 80% 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
Wyoming Refining Co inside Weston's TRI pounds
Among the 902 Petroleum facilities in this database, Wyoming Refining Co reports the 158th-largest volume, placing it in the top 17.5% of its sector. This one site accounts for 100% of every pound reported in Weston. Scale peers outside Wyoming include Calumet Branded Products LLC and Scott Biodiesel/greenville Terminal.
County-dominant here means ≥25% of Weston's reported pounds (76.4K lbs county total). Shares only print when the site reports ≥1,000 lbs.
Annual disclosure change
What changed: EPA TRI 2023 reporting year
- Wyoming Refining Co's total reported releases rose from 14.3 thousand lb in 2022 to 16.8 thousand lb in 2023, based on EPA TRI filings.
- Wyoming Refining Co's air releases rose from 10.3 thousand lb in 2022 to 12.7 thousand lb in 2023, based on EPA TRI filings.
- Wyoming Refining Co's water releases fell from 739 lb in 2022 to 571 lb in 2023, based on EPA TRI filings.
- Wyoming Refining Co's land releases rose from 3.3 thousand lb in 2022 to 3.5 thousand lb in 2023, based on EPA TRI filings.
Wyoming Refining Co Form-R facts
Compare this facility
See how Wyoming Refining Co stacks up against nearby facilities and the typical reporter.
92% less than the comparison
3.3× 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 Wyoming Refining Co releases toxic chemicals into the environment. Total: 76.4K lbs.
Emissions Trend Summary
From 2019 to 2023, total releases decreased by 3% (17.4K lbs to 16.8K lbs).
Wyoming Refining Co: annual Form-R pounds
LIGHT site · MIXED pathway · TRI years 2019–2023
- 2019 0
- 2020 0
- 2021 0
- 2022 0
- 2023 0
What this shows Wyoming Refining Co year-over-year reported totals (decreased by 3% 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: Toluene.
| Year | Total | Chemicals |
|---|---|---|
| 2019 | 17.4K lbs | 19 |
| 2020 | 13.2K lbs | 21 |
| 2021 | 14.8K lbs | 21 |
| 2022 | 14.3K lbs | 23 |
| 2023 | 16.8K lbs | 23 |
Chemical Releases
Aggregated across all reporting years (2019–2023). 6 of 23 chemicals are carcinogens. Sorted by total release volume.
| Chemical | Total | Flags |
|---|---|---|
| Toluene | 19.0K lbs | - |
| n-Hexane | 10.3K lbs | - |
| Propylene | 9.9K lbs | - |
| Xylene (mixed isomers) | 8.7K lbs | - |
| Benzene | 7.9K lbs | Carcinogen |
| Hydrogen fluoride | 6.6K lbs | - |
| Ammonia | 4.1K lbs | - |
| Hydrogen sulfide | 2.2K lbs | - |
| Cyclohexane | 1.8K lbs | - |
| Ethylbenzene | 1.7K lbs | Carcinogen |
| Cumene | 1.2K lbs | Carcinogen |
| Hydrogen cyanide | 797 lbs | - |
| 1,3-Butadiene | 784 lbs | Carcinogen |
| 1,2,4-Trimethylbenzene | 551 lbs | - |
| Naphthalene | 517 lbs | Carcinogen |
| Styrene | 170 lbs | Carcinogen |
| Ethylene | 154 lbs | - |
| Methanol | 10 lbs | - |
| Cresol (mixed isomers) | 9 lbs | - |
| 1-Propanesulfonic acid, 2-methyl-, 2-[[1-oxo-3-[(γ-ω-perfluoro-C4-16-alkyl)thio]propyl]amino] derivs., sodium salts | 0 lbs | - |
| Certain glycol ethers | 0 lbs | - |
| Thiols, C8-20, γ-ω-perfluoro, telomers with acrylamide | 0 lbs | - |
| 1-Propanaminium, 2-hydroxy-N,N,N-trimethyl-, 3-[(γ-ω-perfluoro-C6-20-alkyl)thio] derivs., chlorides | 0 lbs | - |
Wyoming Refining Co in Weston
Nearest TRI Facilities to Wyoming Refining Co
Closest other reporters in Wyoming - including Western Gas Resources Hilight Gas Plant, Nelson Brothers Mining Services LLC, Pacificorp Wyodak Plant, ordered by distance.
Showing 8 of 69 other reporting facilities in Wyoming.
Similar Petroleum Facilities
Other Petroleum facilities with similar total release volumes (±80%), outside Wyoming - e.g. Calumet Branded Products LLC, Scott Biodiesel/greenville Terminal, Industrial Oils Unlimited LLC.
Compare beyond Wyoming
Nationwide peers by reported pounds & chemical count
Cross-state TRI reporters nearest Wyoming Refining Co on cumulative reported pounds (76.4K lbs) and distinct chemical count (23). Release-pound peers include Ips Structural Adhesives Inc., Talon Products LLC, East Texas Gas Plant. Chemical-count peers include Woodland Pulp LLC, Brenntag Northeast LLC, Aes Warrior Run 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.
- Ips Structural Adhesives Inc. Durham, NC · Chemicals 76.5K lbs reported
- Talon Products LLC Bristol, IN · Plastics and Rubber 76.5K lbs reported
- East Texas Gas Plant Carthage, TX · Natural Gas Processing 76.5K lbs reported
- Mesker Mbm Lp. Huntsville Huntsville, AL · Fabricated Metals 76.6K 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 Par Montana Billings Refinery, US Oil & 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 Toluene, n-Hexane, Propylene, Xylene (mixed isomers); nearby reporters include Western Gas Resources Hilight Gas Plant. Wyoming Refining Co stamps LIGHT volume · MIXED 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 Wyoming Refining Co TRI extract (LIGHT · MIXED · CARC-LEAN · lead Toluene) joins EPA Form-R filings with facility identity - reported pounds, not a health-risk rating.
Wyoming Refining Co totals are self-reported EPCRA §313 estimates for Newcastle, WY, latest year 2023. Form-R rows span 2019–2023 (5 years). NAICS 324110 · Petroleum. 100% of Weston TRI pounds in this extract. Nearest ABS peer: Ips Structural Adhesives Inc. (Δ 47 lbs). Pounds ≠ exposure.
Wyoming Refining Co stamps LIGHT · MIXED pathway (air releases leads at 68.8%). 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