Collocations for oil - noun

heavy
light
crude
refined
offshore
mineral
engine, fuel, heating, lubricating, motor
linseed
paraffin (usually just paraffin) (kerosene in AmE)
Use a rag soaked in paraffin oil.

barrel
film
a rod coated with a film of oil

drop

extract, obtain, produce
drill for
The company is drilling for oil in the North Sea.

discover, find, strike
pump
export, import
burn, use
change, check (in a car, etc.)
soak sth in
smell of
The place smelled of oil.

company, producer
man (usually oilman)
baron, magnate, sheikh
industry, production
drilling, exploration
field, rig, well
pipeline
drum
tanker
refinery
prices, revenue
reserves, supplies
slick, spill, spillage
a seven-mile-long oil slick off the Alaskan coast

cooking
hydrogenated (esp. AmE), polyunsaturated
rancid
coconut, canola (AmE), corn, groundnut (BrE), olive, palm, peanut, rapeseed (esp. BrE), sesame, soya bean (BrE), soybean (AmE), sunflower, vegetable
a bottle of extra virgin olive oil

salad

heat
boil sb/sth in, cook sth in, fry sth in
drizzle, pour
Toast the bread, rub with garlic and drizzle over a little olive oil.

in oil
Fry the potato in a little sunflower oil.

aromatic, fragrant, scented
essential
essential oils extracted from flowers

natural
body, hair
baby, bath
aromatherapy, massage
cod liver, fish, omega-3
A daily dose of omega-3 fish oil will help children to concentrate better.

castor, evening primrose, flaxseed, lavender, tea tree, etc.

massage, rub
She rubbed a scented oil into her hair.

massage sth with, rub sth with
anoint sb/sth with
The sick were anointed with oil.

extract

oil of
oil of rosemary