JACKSON, Miss.—Cal-Maine Foods Inc. says it has completed its purchase of the remaining half of Delta Egg Farm LLC.

Cal-Maine is paying $17 million to a unit of Moark LLC of Fontana, Calif., to buy the half of the Delta Egg operation that it doesn't own.

Delta Egg Farm includes a feed mill and 1.2 million-hen capacity egg complex near Delta, Utah. It also includes a 400,000-hen capacity organic egg complex near Chase, Kan.

Based in Jackson, Miss., Cal-Maine is the largest producer of fresh shell eggs in the United States, selling its eggs in 29 states.