That and I couldn't find any whale oil for sale.

He later on went to whale oil, but the cost was prohibitive.

He soon incorporated whale oil into the formula, although many changes have been made over the years.

Until this time, the primary lamp fuel had been whale oil.

Whatever the liquid was, it wasn't whale oil: of so much the engineers seemed certain.

The cheaper, more efficient fuel began to drive whale oil out of the market.

During the years 1932-34 the prices on whale oil sank from £25 to £10 per ton.

All this money and you can't afford whale oil except for that lantern.

It was designed with a 270-degree arc to conserve whale oil.

First, petroleum was discovered underground, which made whale oil less valuable.