Her father is an independent oil and gas producer in Bradford.

It is the 2nd largest independent oil and gas company operating in South America.

In 1971, he started his career as an independent oil and mining entrepreneur on a global scale.

He became employed as an independent oil and gas lease broker.

After his father's death in 1969, he became an independent oil and gas operator.

Severneftegaz was one of the first independent oil and gas companies in Russia.

It is North America's largest independent oil and gas company.

His father is an independent oil and gas producer in Denver.

He also served as a board member at Lucas Energy, an independent crude oil and gas company.

His father was an independent oil and gas operator.