TRI facility · TRI 2024 reporting year

Phillips 66 Ponca City Site

Total reported releases 350k lb fell meaningfully year over year (-25%). Total releases concentrations have fallen 19% since 2010.

1000 S PINE ST, Ponca City, Oklahoma · 324110 · Petroleum · operated by Phillips 66 Co

TOTAL RELEASES · 20102024
Bar chart of annual values from 2010 to 2024, in lb. Most recent year (2024): 350k.1.1M'10'12'14'16'18'20'22'24350k
Anomaly engine

Notable Signals

YEAR-OVER-YEAR DROP · RELEASE SHIFT

Lead And Lead Compounds

Lead And Lead Compounds releases at Phillips 66 Ponca City Site fell from 139k lb to 1k lb (99% lower) between 2023 and 2024.

LONG-ARC IMPROVEMENT · LONG-ARC SHIFT

Ammonia

Ammonia at Phillips 66 Ponca City Site have more than three-quarters since 2010 (through 2024).

LONG-ARC IMPROVEMENT · LONG-ARC SHIFT

Benzene

Benzene at Phillips 66 Ponca City Site have more than halved since 2010 (through 2024).

Chemicals reported · most recent year

What This Facility Releases

RESPIRATORYCAS 74-90-8

Hydrogen cyanide

99k lb · +43% YoY

Hydrogen cyanide concentrations have fallen 10% since 2012.

RESPIRATORYCAS 110-54-3

n-Hexane

68k lb · +2% YoY

n-Hexane concentrations are up 23% since 2010.

RESPIRATORYCAS 108-88-3

Toluene

44k lb · +2% YoY

Toluene concentrations have fallen 37% since 2010.

RESPIRATORYCAS 1330-20-7

Xylene (mixed isomers)

33k lb · +10% YoY

Xylene (mixed isomers) concentrations have fallen 41% since 2010.

GENERALCAS 110-82-7

Cyclohexane

26k lb · -2% YoY

Cyclohexane concentrations are roughly unchanged from 2010.

CARCINOGENCAS 71-43-2

Benzene

16k lb · -3% YoY

Benzene concentrations have more than halved since 2010.

GENERALCAS 7783-06-4

Hydrogen sulfide

15k lb · -1% YoY

Hydrogen sulfide concentrations are up 16% since 2012.

GENERALCAS 7664-41-7

Ammonia

12k lb · -2% YoY

Ammonia concentrations have more than halved since 2010.

Equity context · ACS 2018-2022 block-group demographics

Who Lives Next To This Facility

Within 3 miles of this facility (20 Census block groups, population-weighted demographics): a population of 19,028. Why we surface this →

POPULATION SHARE
47.0%

Low-income

POPULATION SHARE
33.3%

People of color

POPULATION SHARE
7.0%

Under age 5

POPULATION SHARE
16.6%

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.