Archrock, Inc. is a natural gas contract operations services company. The Company also provides natural gas compression services to customers in the oil and natural gas industry throughout the United States and supplies aftermarket services to customers that own compression equipment in the United States. The Company operates through two segments: contract operations and aftermarket services. The contract operations segment primarily provides natural gas compression services to meet specific customer requirements. The Company provides contract operations services, including the personnel, equipment, tools, materials and supplies to meet its customers' natural gas compression needs. The aftermarket services segment provides a range of services to support the compression needs of customers, from parts sales and normal maintenance services to full operation of a customer's owned assets.