oil shale

noun 0.844

shale

noun 0.810

black shale

noun 0.727

oil sand

noun 0.716

coal oil

noun 0.675

crude oil

noun 0.658

rock oil

noun 0.649

oil gas

noun 0.641

oil

noun 0.634

wood oil

noun 0.624

oil field

noun 0.616

engine oil

noun 0.606

pine oil

noun 0.605

fracking

noun 0.600

tar sand

noun 0.598

rape oil

noun 0.589

motor oil

noun 0.589

bunker oil

noun 0.588

oilman

noun 0.584

whale oil

noun 0.580

oily

noun 0.577

fuel oil

noun 0.575

heating oil

noun 0.573

oil well

noun 0.568

oil platform

noun 0.567

mineral oil

noun 0.562

fossil fuel

noun 0.562

sunflower oil

noun 0.561

hydrocarbon

noun 0.560

oil refinery

noun 0.559

sump oil

noun 0.553

soybean oil

noun 0.551

flaxseed oil

noun 0.548

oiling

noun 0.548

rapeseed oil

noun 0.547

canola oil

noun 0.546

oilrig

noun 0.546

tall oil

noun 0.545

vegetable oil

noun 0.545

kerogen

noun 0.542

essential oil

noun 0.539

olive oil

noun 0.538

hydrofracturing

noun 0.534

asphalt shingle

noun 0.532

truffle oil

noun 0.531

oleum

noun 0.530

sweet crude

noun 0.528

baby oil

noun 0.526

schist

noun 0.524

cottonseed oil

noun 0.522

coal seam

noun 0.520

synfuel

noun 0.518

grapeseed oil

noun 0.517

bunker fuel

noun 0.516

petrochemical

noun 0.516

oil stove

noun 0.515

gilsonite

noun 0.513

sour crude

noun 0.512

natural gas

noun 0.511

mudstone

noun 0.509

black gold

noun 0.508

oiler

noun 0.507

oilseed

noun 0.507

oil drum

noun 0.506

gear oil

noun 0.505

methane hydrate

noun 0.505

fish oil

noun 0.504

biocrude

noun 0.504

brown coal

noun 0.504

coalbed methane

noun 0.503

oiliness

noun 0.502

sesame oil

noun 0.502

oil paint

noun 0.502