Although variously defined, the upper limit for heavy oil is 22° API gravity with a viscosity of 100 cp (centipoise). The American Petroleum Institute's "API gravity" is a standard to express the ...

Except the strategic petroleum reserve doesn’t contain cash. The reserve can hold more than 700 million barrels of oil. Right ...

five of the world’s top oil-producing nations created the Organization of the Petroleum Exporting Countries, or OPEC. The intergovernmental organization — which has since expanded to 13 ...

Chemists in the oil industry tend to be highly practical problem-solvers. They enjoy lab work and working on a team that involves communicating with chemical engineers, product managers, and customers ...

High debt and low crude oil prices hit Occidental Petroleum stock in 2024. The oil and gas producer, however, is repaying debt and generating incremental cash flows from a recent acquisition.