Table of Contents For the years ended December 31, 2019 and 2018, Energy & Transportation segment sales by end user application were as follows: Energy & Transportation External Sales (Millions of dollars) 2019 2018 Oil and gas $ 5,205 $ 5,763 Power generation 4,474 4,334 Industrial 3,749 3,640 Transportation 5,057 5,095 Energy & Transportation External Sales $ 18,485 $ 18,832 138