1.   To keep warm they burnt wood in a rusty oil barrel.

2.   On her way, she pauses, pointing to a rusty oil drum.

3.   Occasionally the vista is broken by a rusty oil tank and drilling gear or the bones of a half-century-old tractor and other farm equipment.

4.   The casino here consists of three double-wide trailers stuck together on cinder blocks in a rutted lot with two rusty oil drums outside for trash.