In 2005, the area was restored and some 276 tons of earth containing chlorinated hydrocarbons and 595 tons containing petroleum was removed.

(The original U.S. Senate draft temporarily (for only 5 years) excluded the entire value of goods containing petroleum).

It is one of the provinces known to contain petroleum and natural gas.

Petroleum geologists study the locations of the subsurface of the Earth which can contain extractable hydrocarbons, especially petroleum and natural gas.

It doesn't contain petroleum and is biodegradable.

Avoid products that contain benzocaine, lidocaine, or petroleum (like Vaseline).

The river valley contains unexploited petroleum and natural gas deposits.

Within the anticline, numerous Pliocene-age sand units contain petroleum of various types.

Clay and sand, which lie in the topmost layer, may contain petroleum.

Oil sprays contain petroleum and are ideal to snuff out scales, mealybugs, whiteflies and red spiders.