Oil Campaign of World War II in the context of "Lubrication"

Bottrop (German pronunciation: [ˈbɔtʁɔp] ) is a city in west-central Germany, on the Rhine–Herne Canal, in North Rhine-Westphalia. Located in the Ruhr industrial area, Bottrop adjoins Essen, Oberhausen, Gladbeck, and Dorsten. The city had been a coal-mining and rail center and contains factories producing coal-tar derivatives, chemicals, textiles, and machinery. Bottrop grew as a mining center beginning in the 1860s, was chartered as a city in 1921, and bombed during the Oil Campaign of World War II. In 1975, it unified with the neighbouring communities of Gladbeck and Kirchhellen, but Gladbeck left it in 1976, leading to Kirchhellen becoming a district of Bottrop as Bottrop-Kirchhellen. It is also twinned with Blackpool, England.

Carl Andrew Spaatz (born Spatz; 28 June 1891 – 14 July 1974), nicknamed "Tooey", was an American World War II general. As commander of Strategic Air Forces in Europe in 1944, he successfully pressed for the bombing of the enemy's oil production facilities as a priority over other targets. He became Chief of Staff of the newly formed United States Air Force in 1947.