AIR vs MDU Comparison

AAR Corp is engaged in providing products and services to aviation, government and defense market. It operates in segments namely: The parts supply segment majorly consists of sales and leasing of USM and aftermarket distribution of new, OEM-supplied replacement parts; Repair & Engineering segment provides airframe maintenance, component repair, and landing gear overhaul services; Integrated Solutions segment consists of its fleet management and operations of customer-owned aircraft, customized performance-based supply chain logistics programs in support of the U.S. Department of Defense, flight hour component inventory; and The Expeditionary Services segment consists of products and services supporting the movement of equipment and personnel by the U.S. and foreign governments and NGOs.

MDU Resources Group Inc operates in three business segments, which include the electric segment, which generates, transmits, and distributes electricity in Montana, North Dakota, South Dakota, and Wyoming; The natural gas distribution segment distributes natural gas in those states, as well as in Idaho, Minnesota, Oregon, and Washington; The pipeline segment provides natural gas transportation and underground storage services through a regulated pipeline system in the Rocky Mountain and northern Great Plains regions of the United States.