air pollution
chemical
chimney
construction
danger
diesel
distillation
distillery
dusk
energy
environment
factory
fuel
fumes
gas
gas refinery
gasoline
generation
glowing
horizontal
industrial
industry
manufacturing
night
oil
oil industry
oil refinery
petrochemical plant
petroleum
pipe
pipeline
plant
pollution
power
power station
pump
refinery
shiny
silhouette
sky
steel
structure
sunrise
sunset
supply
tank
technology
tower
tube