Oil-fields meaning

Natural gas is also furnished to the city from oil-fields in Kansas.

Within recent years, owing to the initiative of Colonel English, a method of raising oil by the agency of compressed air has been introduced into the Baku oil-fields.

A form of the rod system is used in the Russian oil-fields, but owing to the large diameter of the wells the appliances differ from those employed elsewhere.

The primitive methods originally in use in the Russian oil-fields have already been described; but these were long ago superseded by pipe-lines, while a great deal of oil is carried by tank steamers on the Caspian to the mouth of the Volga where it is transferred to barges and thence at Tzaritzin to railway tank-cars.