Operational since 1902, Stewart & Stevenson is a designer, manufacturer and marketer of specialized equipment for oil and gas industry. Based in El Paso, Texas, the company also provides aftermarket parts and services to other related industries. It offers customers a wide array of products, such as equipment for well stimulation, well workover and service, drilling, coiled tubing, cementing and nitrogen pumping. In addition, the firm provides power generation and electrical systems, as well as engines, transmissions and material handling equipment. Stewart & Stevenson also offers rental equipment to a broad range of customers.