coal bed

noun 0.839

coalfield

noun 0.731

coal

noun 0.725

coalface

noun 0.715

coal train

noun 0.713

coalbed methane

noun 0.702

coal black

noun 0.700

coalmining

noun 0.684

coal gas

noun 0.680

coal plant

noun 0.676

coking coal

noun 0.674

mineral coal

noun 0.672

coal tar

noun 0.667

colliery

noun 0.656

coaling

noun 0.656

coalman

noun 0.654

coal oil

noun 0.652

coalminer

noun 0.641

coal merchant

noun 0.622

brown coal

noun 0.619

oil sand

noun 0.587

culm

noun 0.579

charbon

noun 0.578

oil shale

noun 0.573

coalfish

noun 0.559

mineshaft

noun 0.550

black shale

noun 0.547

collier

noun 0.547

lignite

noun 0.542

seam

noun 0.542

fossil fuel

noun 0.537

black lung

noun 0.528

gold mine

noun 0.523

shale

noun 0.522

anthracite

noun 0.522

shale oil

noun 0.520

oil field

noun 0.519

oil gas

noun 0.514

marsh gas

noun 0.509

coking

noun 0.505

bedding plane

noun 0.504

pithead

noun 0.502