EPA TRI Facility · Natural Gas Processing
Oneok Field Svc/maysville Gas Plt
Maysville, OK · Parent: Oneok Inc
- Total releases
- 101.4K lbs
- Chemicals reported
- 5
- Carcinogens
- 1
- Primary pathway
- Air Releases
AIR Form-R mix
Oneok Field Svc/maysville Gas Plt: how the 101.4K lbs splits
101.4K lbs across all reported pathways
- Air Releases 100.9K lbs 99.5%
- Off-site Transfers 510 lbs 0.5%
Oneok Field Svc/maysville Gas Plt's 101.4K lbs Form-R total is AIR - air releases is 99.5% of the bar. Next segment: off-site transfers at 0.5%. Leading chemical by pounds: Formaldehyde.
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-HEAVY
Oneok Field Svc/maysville Gas Plt is an EPA Toxics Release Inventory reporter in Maysville, OK, in the natural gas processing sector. It reported 47.0K lbs of releases across 4 chemicals in 2023, and 101.4K lbs in total across its 2022-2023 reporting years. That ranks 4,554 of 25,986 TRI facilities nationwide by cumulative reported pounds, counting each facility over however many years it has filed. In Oklahoma's 350 reporting TRI sites, pounds #1 is not chemical-count #1. Oneok Field Svc/maysville Gas Plt is pounds #77 and chemical-count #104 at 101.4K lbs. International Paper Co leads reported pounds (28.8M lbs) at 21 chemicals (chemical-count #10). Clean Harbors Lone Mountain LLC Lone Mountain Facility leads chemical count at 51 chemicals (15.9M lbs, pounds #3). Reported volume fell against 2022. Pounds reported are not a measure of toxicity or health risk. Nearest other TRI reporters: Bradley Gas Processing Plant; Forum Energy Technologies-Allied Production-Titan; Grady Gas Plant; Dcp Midstream - Chitwood. Similar-scale Natural Gas Processing peers outside Oklahoma: Dcp National Helium Plant; Andeavor Field Services Llc-Belfield Gas Plant; Ramsey Gas Plant; Dcp Midstream O-Connor Gas Plant. Other Oneok Inc sites in this extract: Oneok Rockies Midstream LLC - Grasslands Gas Plant; Oneok Hydrocarbon LP - Bushton Complex; Canadian Valley Gas Plant; Magellan Processing L.P.. Largest disclosed chemicals by pounds: Formaldehyde; n-Hexane; Methanol; Cyclohexane.
Oneok Field Svc/maysville Gas Plt stamps MID volume with a dominant AIR pathway (99.5% air releases) across 5 chemicals · 1 carcinogen-classified. Cumulative Form-R extract: 101.4K lbs (2022–2023). All figures are self-reported EPCRA §313 estimates, not measured stack emissions or a health-risk score. Scale peers include Dcp National Helium Plant and Andeavor Field Services Llc-Belfield Gas Plant.
Oneok Field Svc/maysville Gas Plt vs. every reporting TRI facility
Cumulative reported release pounds, with this facility marked in the national distribution
101K lbs Top 18% higher than 82% 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
Oneok Field Svc/maysville Gas Plt: carcinogen-lbs share on Form-R
Among the 339 Natural Gas Processing facilities in this database, Oneok Field Svc/maysville Gas Plt reports the 54th-largest volume, placing it in the top 15.9% of its sector. Carcinogen-classified chemicals make up 51.8% of the reported pounds, not just of the chemical count. Scale peers outside Oklahoma include Dcp National Helium Plant and Andeavor Field Services Llc-Belfield Gas Plant.
Carcinogen-heavy means ≥50% of pounds (51.8% here), not of chemical count. EPA/IARC classification ≠ site risk.
Annual disclosure change
What changed: EPA TRI 2023 reporting year
- Oneok Field Svc/maysville Gas Plt's total reported releases fell from 54.4 thousand lb in 2022 to 47.0 thousand lb in 2023, based on EPA TRI filings.
- Oneok Field Svc/maysville Gas Plt's off-site transfers fell from 510 lb in 2022 to 0 lb in 2023, based on EPA TRI filings.
- Oneok Field Svc/maysville Gas Plt's chemicals reported fell from 5 in 2022 to 4 in 2023, based on EPA TRI filings.
- Oneok Field Svc/maysville Gas Plt's air releases fell from 53.9 thousand lb in 2022 to 47.0 thousand lb in 2023, based on EPA TRI filings.
Oneok Field Svc/maysville Gas Plt Form-R facts
Compare this facility
See how Oneok Field Svc/maysville Gas Plt stacks up against nearby facilities and the typical reporter.
9.1× more than the comparison
17% 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 Oneok Field Svc/maysville Gas Plt releases toxic chemicals into the environment. Total: 101.4K lbs.
Emissions Trend Summary
From 2022 to 2023, total releases decreased by 14% (54.4K lbs to 47.0K lbs).
Oneok Field Svc/maysville Gas Plt: annual Form-R pounds
MID site · AIR pathway · TRI years 2022–2023
- 2022 0
- 2023 0
What this shows Oneok Field Svc/maysville Gas Plt year-over-year reported totals (decreased by 14% 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: Formaldehyde.
| Year | Total | Chemicals |
|---|---|---|
| 2022 | 54.4K lbs | 5 |
| 2023 | 47.0K lbs | 4 |
Chemical Releases
Aggregated across all reporting years (2022–2023). 1 of 5 chemicals are carcinogens. Sorted by total release volume.
| Chemical | Total | Flags |
|---|---|---|
| Formaldehyde | 52.5K lbs | Carcinogen |
| n-Hexane | 41.2K lbs | - |
| Methanol | 4.5K lbs | - |
| Cyclohexane | 3.2K lbs | - |
| Ethylene glycol | 1 lbs | - |
Oneok Field Svc/maysville Gas Plt · AIR-pathway site
Nearest TRI Facilities to Oneok Field Svc/maysville Gas Plt
Closest other reporters in Oklahoma - including Bradley Gas Processing Plant, Forum Energy Technologies-Allied Production-Titan, Grady Gas Plant, ordered by distance.
Showing 8 of 349 other reporting facilities in Oklahoma.
Similar Natural Gas Processing Facilities
Other Natural Gas Processing facilities with similar total release volumes (±80%), outside Oklahoma - e.g. Dcp National Helium Plant, Andeavor Field Services Llc-Belfield Gas Plant, Ramsey Gas Plant.
Compare beyond Oklahoma
Nationwide peers by reported pounds & chemical count
Cross-state TRI reporters nearest Oneok Field Svc/maysville Gas Plt on cumulative reported pounds (101.4K lbs) and distinct chemical count (5). Release-pound peers include Daramic LLC, Valley Queen Cheese Factory Inc., Great Lakes Composites LLC. 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 Oneok Inc Facilities
Same-parent TRI sites ranked by reported releases - including Oneok Rockies Midstream LLC - Grasslands Gas Plant, Oneok Hydrocarbon LP - Bushton Complex, Canadian Valley Gas 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 Formaldehyde, n-Hexane, Methanol, Cyclohexane; nearby reporters include Bradley Gas Processing Plant. Oneok Field Svc/maysville Gas Plt stamps MID volume · AIR pathway · CARC-HEAVY 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 Oneok Field Svc/maysville Gas Plt TRI extract (MID · AIR · CARC-HEAVY · lead Formaldehyde) joins EPA Form-R filings with facility identity - reported pounds, not a health-risk rating.
Oneok Field Svc/maysville Gas Plt totals are self-reported EPCRA §313 estimates for Maysville, OK, latest year 2023. Form-R rows span 2022–2023 (2 years). NAICS 211130 · Natural Gas Processing. 5.8% of Garvin TRI pounds in this extract. Nearest ABS peer: Daramic LLC (Δ 0 lbs). Pounds ≠ exposure.
Oneok Field Svc/maysville Gas Plt stamps MID volume · AIR pathway · CARC-HEAVY · lead Formaldehyde. 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