Record cold temperatures across the country, and particularly in the Midwest, have created an unprecedented surge in demand for propane, sparking higher energy costs for farmers and consumers.
According to the Energy Information Administration, residential propane prices in the Midwest topped $4.20 per gallon last week, quite a bit higher than the $2.28 consumers paid just a month ago.
Related: Cold Weather Strains Midwestern Propane Supplies
That has sparked questions from Sen. Chuck Grassley, R-Iowa, and lawmakers in other affected states, who say the shortages have them concerned for consumers.
"The recent propane supply shortage and price increases are causing hardship for the many rural Iowa families that use propane to heat their homes," Grassley said. "I'm asking the agency that oversees business practices to look at the propane situation and see whether the price increases are legitimate or manipulated in any way to consumers' detriment."
Grassley submitted a letter to the Federal Trade Commission to question soaring prices, suggesting they "remain vigilant in overseeing the propane market prevent possible anti-competitive behavior or illegal manipulation, and to ensure that any supply shortages are not created artificially."
Meanwhile, other lawmakers are requesting additional funds from the Department of Health and Human Services to make sure families have enough heat.
Sens. Amy Klobuchar, D-Minn., Al Franken, D-Minn., and Tammy Baldwin, D-Wis., last week said extreme cold weather combined with transportation bottlenecks should warrant emergency Low Income Energy Assistance Program grants for impacted states.
Related: Missouri Attorney General To Investigate Propane Price Spikes
The letter was submitted shortly after another group of Representatives from Minnesota requested assistance from the White House to not only help consumers, but ensure that constituents have enough fuel to "keep livestock and poultry barns warm."
The Representatives also requested that the U.S. Department of Transportation exemption to the hours-of-service regulations be extended for as long as may necessary to address the issue. The exemption allows drivers to work longer hours to keep propane deliveries coming.