Noun
(informal, idiomatic) Raw petroleum; crude oil.
Black pepper, in the context of being a historically valuable spice.
Black-coloured gold, variously produced by patination, deposition, oxidation, etc. and used in jewellery or in high-technology applications.
Coal.
Source: en.wiktionary.orgTo shipbrokers, coal was black gold. Roald Dahl
Added to this, the API reported a crude build of inventories for the past week, leading the black gold to fall through the $45 handle. Source: Internet
And apparently they have had their own environmental disaster long before all that "black gold" started spilling into the Gulf. Source: Internet
There's your cup of black gold, and you didn't even need mess with a tangled sleeping bag. Source: Internet
The “Kirill Lavrov” is one of two giant tankers that ferry the black gold to land. Source: Internet
Ultimately, IS is a cancer of modern industrial capitalism in meltdown, a fatal by-product of our unwavering addiction to black gold, a parasitical symptom of escalating civilisational crises across both the Muslim and Western worlds. Source: Internet