HARTFORD, Wis. — The Wisconsin Department of Agriculture, Trade and Consumer Protection (DATCP) issued a formal warning to a Hartford Kwik Trip after the store raised its fuel prices more than once within a 24-hour period — a violation of state law. The warning letter, dated April 13, 2026, was sent to Kwik Trip, Inc.'s Petroleum Department at its La Crosse headquarters. It states the violations occurred on January 5 and January 6, 2026, at the store located at 1411 E. Sumner Street in Hartford.