A number of general technologies can contribute to increased efficiency and productivity in manufacturing. These include computer control of building environments, computer control of processes or major energy-using equipment, waste-heat recovery, and adjustable-speed motos. Most frequently cited in the petroleum industry is adjustable speed motors (43% of the industry). [MECS 1998]

General/Generic Technologies Use – 1998
(NAICS 324 Petroleum & Coal Products)

Source: MECS 1998