CONVEX
Scenario × Asset Analysis

What Happens to CPI: Food When Natural Gas Spikes?

What happens when natural gas prices spike? Winter heating costs, electricity prices, fertilizer costs, and the cascading economic effects of America's most volatile commodity.

CPI: Food
346.6
as of Mar 1, 2026
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Trigger: Henry Hub Natural Gas
$3.04
Condition: rises above $6/MMBtu (doubles from normal levels)
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How CPI: Food Responds

Natural gas is the primary input for nitrogen fertilizer. Gas spikes increase food production costs, which feed through to food CPI with a 6-12 month lag. This is the hidden channel of gas-to-food inflation.

Scenario Background

Natural gas is the most volatile major commodity because its supply and demand are both highly inelastic in the short term and extremely weather-sensitive. Unlike oil, which can be easily stored and transported globally, natural gas storage is limited and pipeline infrastructure constrains supply response. A cold winter snap or a summer heat wave can cause prices to spike 50-100% in days.

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Historical Context

Natural gas spiked to $13/MMBtu in 2005 after Hurricanes Katrina and Rita damaged Gulf Coast production infrastructure. It hit $15 in 2008 during the energy price boom. The 2022 European energy crisis pushed US Henry Hub from $3 to $9 as LNG exports surged. The 2021 Texas freeze caused localized spot prices to exceed $200 for brief periods. More typically, gas oscillates between $2 and $5, with spikes above $6 considered extreme events that produce significant economic effects. Each major spike ...

What to Watch For

  • Storage below the 5-year average heading into November, winter spike risk elevated
  • Extended cold weather forecasts, the demand catalyst for gas spikes
  • LNG export capacity additions, increasing the link between US and global gas prices
  • Gas-to-coal switching economics, when gas gets expensive enough, power plants switch to coal
  • Gas producer supply response (rig count changes),the market's self-correcting mechanism

Other Assets When Natural Gas Spikes

Other Scenarios Affecting CPI: Food

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