As the gas rises the bubbles help to push the oil ahead.

In the mist of the alley the gas had risen high now.

The gases rise up and are collected on the top of the furnace.

Roiling purple gas rose out of it and rolled down toward them.

The water was bubbling furiously as the gas rose from the wires.

He felt hot gas rising slowly up through his chest and into his throat.

The remaining gases then rise through a tower called a scrubber.

The stench of gas rising from the small white stove was sickening to me.

The Shadow saw the white gas rising thickly from the case, spreading in a cloud through the office.

This year, heating oil contracts are up 51 percent while natural gas has risen 55 percent.