Difference between Rock Oil and Coal Oil

ROCK OIL vs COAL OIL: NOUN

Kerosene or any unspecified lower grade derivative of crude petroleum
Same as petroleum.
A flammable hydrocarbon oil that is distilled from bituminous coal and is used as a fuel for lamps.
A flammable hydrocarbon oil used as fuel in lamps and heaters

Dry hole, Ligroin, Naphtha, Petroleum ether, Olefiant, Unoil, Oil, Mineral oil, Huile, Neroli oil, Fossil oil, Coal oil, Crude, Crude oil, Petroleum

Picoline, Fuel, Fueling, Soot, Gas, Fuelling, Pyridine, Bunkering, Bunker, Kerosene, Rock oil, Fossil oil, Crude, Crude oil, Petroleum

Oleamen, Rhigolene, Rape oil, Dry hole, Naphtha, Petroleum ether, Olefiant, Unoil, Oil, Mineral oil, Huile, Neroli oil, Crude, Crude oil, Petroleum

Alaska, Picoline, Naphthalene, Soot, Gas, Fueling, Fuel, Pyridine, Bunkering, Bunker, Kerosene, Rock oil, Crude, Crude oil, Petroleum

Use caution when walking on uneven surfaces or surfaces which contain ice, snow, rock, oil, water, or other adverse or unstable material.

People used coal, oil, wood, and everything was lightened by candles.
Examples include coal, oil, and various sorts of metallic ores.
Petroleum or coal oil and its products for illuminating purposes.
Earth, such as coal, oil, natural gas, and trees.
Carbon also occurs in coal, oil, and natural gas.
From Coal, Oil and Gas to Green Energy.
Some examples include: wind turbines, solar panels, biodiesel, ethanol, coal, oil, gas, hydrogen, wave, geothermal, oil sands, and liquefied natural gas.
These energy and mineral resources include, but are not limited to, coal, oil, gas, geothermal, oil shale, potassium, sodium, and phosphate.
Coal oil was first produced in 1851 by Irish immigrant miners at the Victoria Coal Mines near Cloverport, Kentucky.
Relative cost of natural gas, soft coal, coal oil, gasoline, and electricity for cooking.