Total reported releases
Total reported releases at Wynnewood Refining CO have risen 88% since 2010 (through 2024).
TRI facility · TRI 2024 reporting year
Wynnewood Refining CO
Total reported releases 290k lb held roughly steady year over year (-1%). Total releases concentrations are up 88% since 2010.
906 S POWELL AVE, Wynnewood, Oklahoma · 324110 · Petroleum · operated by Cvr Energy INC
Anomaly engine
Notable Signals
Chemicals reported · most recent year
What This Facility Releases
n-Hexane
n-Hexane concentrations have more than doubled since 2010.
Ammonia
Ammonia concentrations have more than doubled since 2011.
Xylene (mixed isomers)
Xylene (mixed isomers) concentrations have more than doubled since 2010.
Toluene
Toluene concentrations have more than doubled since 2010.
Hydrogen cyanide
Hydrogen cyanide concentrations are roughly unchanged from 2015.
Benzene
Benzene concentrations are up 69% since 2010.
Styrene
Styrene concentrations are up 19% since 2019.
Ethylbenzene
Ethylbenzene concentrations have more than doubled since 2010.
Equity context · ACS 2018-2022 block-group demographics
Who Lives Next To This Facility
Within 3 miles of this facility (2 Census block groups, population-weighted demographics): a population of 2,137. Why we surface this →
51.5%
Low-income
30.8%
People of color
6.0%
Under age 5
25.1%
Over age 64
Source: Census ACS 2018-2022 block-group demographics, population-weighted across the 3-mile buffer around this facility (from USEPA-clone/EJAM-open blockgroupstats). Indicator-level percentile and EJ-disparity scores are surfaced on the county page and the state page — they describe wider regional exposure burdens, not effects attributable to a single facility.
Source. EPA Toxics Release Inventory · retrieved 2026-05-07. Reporting year 2024. TRI is a federal public-domain dataset under 17 USC §105.
What this is not. TRI quantifies releases reported by the facility under EPCRA §313 — not ambient air or water concentrations measured at receptors. We do not attribute individual health outcomes to specific facilities; that exceeds what the data can support.