Industrial size shortening (Fallout 4)

Industrial size shortening is a junk item in Fallout 4.

Characteristics
The box seems to be a worn dark blue, branded "Industrial Large ALL VEGETABLE shortening." with pictures of four cookies displayed underneath. It yields oil when scrapped or placed in a workshop.

Locations

 * One can be found inside the Cambridge campus diner inside the employees-only area.
 * One can be found inside the supply room of the Boston mayoral shelter.
 * One can be found in room 61 of the Harbormaster hotel.
 * One can be found in the kitchen of an apartment building just south of the Parkview Apartments.