What Makes a Crude Oil âLight?â Crude can be classified as âlightâ or âheavy,â a characteristic which refers to the oilâs relative density based on the American Petroleum Institute (API) Gravity. This measurement reflects how light or heavy a crude oil is compared to water. If an oilâs API Gravity is greater than 10, it is lighter than water and will float on it. If an oilâs API Gravity is less than 10, it is heavier than water and will sink. Lighter crude is easier and less expensive to produce. It has a higher percentage of light hydrocarbons that can be recovered with simple distillation at a refinery.
It was reported that Greenberg got engaged to his girlfriend of 18 months, actress Jamie Chung, while on vacation on Turks and Caicos Islands during the December 2013 holiday. They married on October 31, 2015 in Santa Barbara, California.
Met his second wife Gretchen when she was a contestant on Family Feud (1976) in 1981. Hosted Family Feud (1976) for a total of ten years: nine consecutive years (1976-1985) and one non-consecutive year (the 1994-1995 season). Has one brother. Father with second wife of actress Shannon Dawson.n April 6, 1981, the Johnson family appeared on Family Feud and Richard was introduced to 27-year-old Gretchen Johnson. They had a daughter, Shannon Dawson (Shannon Nicole Dawson), in 1990, and were married in 1991.