A gas war among stations in one Michigan town forced prices below $1.

What caused the drop in prices

According to some reports, the fuel fight in Houghton Lake saw prices hovering around 50 cents -- and even dropped as low as 47 cents at one point on Sunday.

The Beacon & Bridge Market, Citgo and Marathon stations were offering the fuel for less than $1, according to 9and10 News.

Read more: Why you should never use a debit card at a gas station

Police officers were helping direct traffic near the stations because of long lines, according to 9and10 News.

However, the prices were apparently promotional. Gas was back to $1.46, $1.48 and $1.47 at those stations on Monday morning, according to gasbuddy.com.