Low oil prices are typically considered a boon for consumers' wallets.

A still from a Boot Barn commercial. Boot sales reported soft third quarter sales thanks to pressures in oil and commodity-related markets.

But as the cost of a barrel of oil continues to plummet, Boot Barn — a company that specializes in Western and work-related footwear — said sales during its recently ended quarter were weak in regions where the local economy depends on the energy sector for jobs.