aerial
altitude
backwater
beautiful
bog
boring rig
day
derrick
environment
exploration
fenny
forest
fuel
gas
headgear
high
industry
marsh
marshy
mineral
mining
morass
naphtha
nature
north
oil
oilfield
outdoor
over
paludal
petrol
petroleum
pollution
processing
pump
quagmire
rig
road
season
sky
swamp
technology
top
tower
view
water
way