The average retail price for diesel exhaust fluid (DEF) in the U.S. increased slightly as 2011 drew to a close, with prices at the pump bumping up three cents per gallon between November and December to $2.76/gal., according to Chris Goodfellow, emissions analyst with global consulting firm Integer Research.

The most recent price movement in the U.S. follows a three cent increase during the previous reporting period, he added.

Integer, which tracks and lists global DEF pricing via its website discoverDEF.com, noted that it’s now tracking the cost of DEF at 347 locations in North America, including many major truck stops.

In Canada, Goodfellow said there are now four truck stops offering DEF at the pump, all operated by Pilot Flying J, with pricing at 80 cents Canadian per liter. That roughly equates to $3.16/gal.

For more information, including a complete breakdown of DEF pump pricing and pricing for DEF delivered in 2.5 gallon jug, tote and bulk formats, visit discoverDEF.com.