Jack J. Grynberg (21 January 1932 – 11 October 2021) was a Polish-born American businessman. He was a Denver-based oil and gas developer who amassed a multibillion-dollar fortune in the oil and natural gas sector.
Born |
1932 Brest, Poland (now in Belarus)
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Died |
11 October 2021 (aged 89)
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Zodiac | |
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