ATCO Ltd. is engaged in structures and logistics, utilities, energy and technologies. The Structures & Logistics segment includes the manufacture, sale and lease of transportable workforce housing and space rentals products. The Utilities segment includes the distribution of natural gas by ATCO Gas, the transmission of natural gas by ATCO Pipelines, and the distribution and transmission of electricity by ATCO Electric and its subsidiaries. The Energy segment includes the supply of electricity and cogeneration steam by ATCO Power and the supply of electricity by ATCO Power, and the natural gas gathering by ATCO Midstream. The ATCO Australia segment includes the supply of electricity and cogeneration steam by ATCO Power Australia. The Corporate and Other segment includes the development, operation and support of information systems and technologies. On July 29, 2011, Canadian Utilities Limited completed the acquisition of WA Gas Networks Pty Ltd (WAGN).