To provided a machine with an oil pan of low manufacturing cost suppressing the generation of noise as much as possible.

A receiving part 35 is formed out of a lower end surface 20c and an inner side surface 32e of a flange part 32c by joining the lower end surface of the flange part 20b of a cylinder block 20a and the flange part 32c of a lower case 32b. A stay 36 made of elastic material is fixed on an outer surface of a bottom part of an oil pan separator 31. The flange part 31c of the oil pan separator 31 is abutted on the receiving part 35 and an oil pan cover 32a is installed on the lower case 32b. Consequently, the stay 36 receives compression force between the oil pan separator 31 and the oil pan cover 32a, and the oil pan separator 31 is elastically supported in a space surrounded by the cylinder block 20a and a lower housing 32.