The biodiversity of the region declined after large areas were cleared to plant oil palms.

Researchers studying the oil palm planted genetically improved varieties to increase yields while reducing environmental impact.

Before the ceremony, he asked me to oil up the hinges so the doors wouldn't squeak.

The sudden drop in global demand forced several oil fields to reduce output this quarter.

During the power outage, many households relied on oil stoves to keep warm.

She cleaned the antique paintbrushes with oil of turpentine to remove stubborn varnish.

I prefer to use canola oil for stir-frying because it has a high smoke point and a neutral flavor.

For authentic flavor, the chef brushed the naan with butter oil before serving.

The old varnisher claimed the chest's finish had been treated with wood oil, a dated extract from the gurjun tree prized for its durability.

Scientists collected samples of fossil oil from the coastal spill to analyze its composition.