EPA TRI Facility · Natural Gas Processing
Hess Seminole Gas Processing Plant
Seminole, TX · Parent: Occidental Petroleum Corp
- Total releases
- 57.8K lbs
- Chemicals reported
- 5
- Carcinogens
- 1
- Primary pathway
- Air Releases
AIR Form-R mix
Hess Seminole Gas Processing Plant: how the 57.8K lbs splits
57.8K lbs across all reported pathways
- Air Releases 55.2K lbs 95.5%
- Off-site Transfers 2.6K lbs 4.5%
Hess Seminole Gas Processing Plant's 57.8K lbs Form-R total is AIR - air releases is 95.5% of the bar. Next segment: off-site transfers at 4.5%. Leading chemical by pounds: Hydrogen sulfide.
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 AIR pathway CARC-LEAN
Hess Seminole Gas Processing Plant is an EPA Toxics Release Inventory reporter in Seminole, TX, in the natural gas processing sector. It reported 31.7K lbs of releases across 5 chemicals in 2023, and 57.8K lbs in total across its 2022-2023 reporting years. That ranks 5,802 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. Hess Seminole Gas Processing Plant is pounds #563 and chemical-count #649 at 57.8K 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 rose against 2022. Pounds reported are not a measure of toxicity or health risk. Nearest other TRI reporters: Thomas Petroleum LLC Seminole; Hobbs Fractionation Plant; Multi-Chem Group Denver City Tx Facility; Oxy Permian - Wasson CO2 Removal Plant. Similar-scale Natural Gas Processing peers outside Texas: Enterprise Gas Proc - Meeker Gas Plant; St. Regis Gas Treating Facility; Dkl Libby Gas Plant; Tom Stack LLC / Chisholm Plant. Other Occidental Petroleum Corp sites in this extract: Occidental Chemical Corp Luling; Occidental Chemical Corp; Occidental Chemical Holding Corp - Geismar Plant; Oxy Vinyls LP Pasadena Pvc Plant. Largest disclosed chemicals by pounds: Hydrogen sulfide; Propylene; Benzene; Diethanolamine.
Hess Seminole Gas Processing Plant stamps LIGHT volume with a dominant AIR pathway (95.5% air releases) across 5 chemicals · 1 carcinogen-classified. Cumulative Form-R extract: 57.8K lbs (2022–2023). All figures are self-reported EPCRA §313 estimates, not measured stack emissions or a health-risk score. Scale peers include Enterprise Gas Proc - Meeker Gas Plant and St. Regis Gas Treating Facility.
Hess Seminole Gas Processing Plant vs. every reporting TRI facility
Cumulative reported release pounds, with this facility marked in the national distribution
58K lbs Top 22% higher than 78% 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
Hess Seminole Gas Processing Plant inside Gaines's TRI pounds
Among the 339 Natural Gas Processing facilities in this database, Hess Seminole Gas Processing Plant reports the 87th-largest volume (57.8K lbs). This one site accounts for 93.0% of every pound reported in Gaines. Scale peers outside Texas include Enterprise Gas Proc - Meeker Gas Plant and St. Regis Gas Treating Facility.
County-dominant here means ≥25% of Gaines's reported pounds (62.1K lbs county total). Shares only print when the site reports ≥1,000 lbs.
Annual disclosure change
What changed: EPA TRI 2023 reporting year
- Hess Seminole Gas Processing Plant's total reported releases rose from 26.1 thousand lb in 2022 to 31.7 thousand lb in 2023, based on EPA TRI filings.
- Hess Seminole Gas Processing Plant's off-site transfers rose from 40 lb in 2022 to 2.6 thousand lb in 2023, based on EPA TRI filings.
- Hess Seminole Gas Processing Plant's air releases rose from 26.1 thousand lb in 2022 to 29.1 thousand lb in 2023, based on EPA TRI filings.
Hess Seminole Gas Processing Plant Form-R facts
Compare this facility
See how Hess Seminole Gas Processing Plant stacks up against nearby facilities and the typical reporter.
653.7× more than the comparison
50% 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 Hess Seminole Gas Processing Plant releases toxic chemicals into the environment. Total: 57.8K lbs.
Emissions Trend Summary
From 2022 to 2023, total releases increased by 21% (26.1K lbs to 31.7K lbs).
Hess Seminole Gas Processing Plant: annual Form-R pounds
LIGHT site · AIR pathway · TRI years 2022–2023
- 2022 0
- 2023 0
What this shows Hess Seminole Gas Processing Plant year-over-year reported totals (increased by 21% 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: Hydrogen sulfide.
| Year | Total | Chemicals |
|---|---|---|
| 2022 | 26.1K lbs | 5 |
| 2023 | 31.7K lbs | 5 |
Chemical Releases
Aggregated across all reporting years (2022–2023). 1 of 5 chemicals are carcinogens. Sorted by total release volume.
| Chemical | Total | Flags |
|---|---|---|
| Hydrogen sulfide | 33.9K lbs | - |
| Propylene | 21.2K lbs | - |
| Benzene | 2.7K lbs | Carcinogen |
| Diethanolamine | 0 lbs | - |
| Methanol | 0 lbs | - |
Hess Seminole Gas Processing Plant · AIR-pathway site
Nearest TRI Facilities to Hess Seminole Gas Processing Plant
Closest other reporters in Texas - including Thomas Petroleum LLC Seminole, Hobbs Fractionation Plant, Multi-Chem Group Denver City Tx Facility, 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. Enterprise Gas Proc - Meeker Gas Plant, St. Regis Gas Treating Facility, Dkl Libby Gas Plant.
Compare beyond Texas
Nationwide peers by reported pounds & chemical count
Cross-state TRI reporters nearest Hess Seminole Gas Processing Plant on cumulative reported pounds (57.8K lbs) and distinct chemical count (5). Release-pound peers include Mar-Bal Inc., Hb Fuller Co, Coats Na Hendersonville Plant. Chemical-count peers include Abbvie Ltd, Lilly del Caribe Inc Carolin A, Baxter Healthcare of Puerto Rico 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.
Similar chemical count
Nearest out-of-state reporters by distinct Form-R chemicals (deduped against the release-pound neighborhood).
Other Occidental Petroleum Corp Facilities
Same-parent TRI sites ranked by reported releases - including Occidental Chemical Corp Luling, Occidental Chemical Corp, Occidental Chemical Holding Corp - Geismar Plant.
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 Hydrogen sulfide, Propylene, Benzene, Diethanolamine; nearby reporters include Thomas Petroleum LLC Seminole. Hess Seminole Gas Processing Plant stamps LIGHT 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 Hess Seminole Gas Processing Plant TRI extract (LIGHT · AIR · CARC-LEAN · lead Hydrogen sulfide) joins EPA Form-R filings with facility identity - reported pounds, not a health-risk rating.
Hess Seminole Gas Processing Plant totals are self-reported EPCRA §313 estimates for Seminole, TX, latest year 2023. Form-R rows span 2022–2023 (2 years). NAICS 211130 · Natural Gas Processing. 93.0% of Gaines TRI pounds in this extract. Nearest ABS peer: Mar-Bal Inc. (Δ 2 lbs). Pounds ≠ exposure.
Hess Seminole Gas Processing Plant stamps LIGHT volume · AIR pathway · CARC-LEAN · lead Hydrogen sulfide. 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