MasTec, Inc. is an infrastructure construction company. The Company operates primarily across North America through a range of industries. The Company operates through five segments: Communications, Oil and Gas, Electrical Transmission, Power Generation and Industrial, and Other. Its primary activities include the engineering, building, installation, maintenance and upgrade of communications, energy and utility infrastructure, such as wireless, wireline/fiber, satellite communications and customer fulfillment activities; petroleum and natural gas pipeline infrastructure; electrical utility transmission and distribution; conventional and renewable power generation, and industrial infrastructure. The Company offered its services primarily under the MasTec service mark and had operations across 510 locations as of December 31, 2016. It provides services under master service and other service agreements, which are generally multi-year agreements.