black gold
Valuable underground liquid
Black gold is a nickname for crude oil, emphasizing its value and the wealth it generates.
The term evokes the riches that oil brought to regions like Texas and the Middle East: They struck black gold on the old family ranch.
Less commonly, black gold refers to other valuable dark substances like coal or rich soil.
petroleum
Natural underground hydrocarbon liquid
refinery · pipeline · OPEC · fossil fuel · derrick · offshore · fracking · shale · tanker · hydrocarbons
espresso
Concentrated pressurized brew
caffeine · roast · barista · latte · cappuccino · americano · mocha · macchiato · crema · beans
- petroleumcrude oil, crude, petroleum, oil wells, oil fields
- oil industrypetroleum, oil fields, oil well, oil rig, oil production
- caviarsturgeon, roe, beluga, osetra, fish roe
- Oil Historypetroleum, crude oil, oil wells, oil derricks, derricks
- Color Idiomsblue moon, green light, red flag, white lie, gray area
- gold24 karat, vermeil, karat, carat, electrum
black goldgreen energy
Environmentally sustainable electricity
renewable energy · clean energy · solar power · wind power · sustainable fuel
black goldgold
Element seventy-nine
yellow gold · white gold · precious metals · liquid sunshine · blue gold
black, gold, golden, blacken, blackness, blackish, gold mine, blackened, gilded