Dresser-Rand Group Inc., together with its subsidiaries, designs, manufactures, sells, and services rotating equipment solutions to the oil, gas, chemical, petrochemical, process, power generation, military, and other industries worldwide. It operates in two segments; New Units, and Aftermarket Parts and Services. The New Units segment provides engineering, manufacturing, project management, packaging, testing, sales, and administrative support services for centrifugal and reciprocating compression equipment and steam turbines; power turbines; special-purpose gas turbines; power recovery expanders; diesel, gas, and dual fuel engines; trip, trip throttle, and non-return valves; and magnetic bearings and control systems. The Aftermarket Parts and Services segment offers engineering, manufacturing, project management, installation, commissioning, start-up and other field, repair, overhaul, refurbishment, sales, and administrative support services for replacement parts, field service turnaround, service and repair, operation and maintenance contracts, rotor/spare parts storage, condition monitoring, controls retrofit, site/reliability audits, remote area energy solutions, equipment repair and rerates, equipment installation, applied technology, long-term service agreements, special coatings/welding, product training, turnkey installation/project management, and energy asset management services. The company markets its products and services through its sales representatives comprising direct sales/service personnel and a network of independent representatives and distributors. Dresser-Rand Group Inc. was incorporated in 2004 and is based in Houston, Texas with an additional location in Paris, France. Dresser-Rand Group Inc. operates as a subsidiary of Siemens Aktiengesellschaft.