According to SEC filings, Mr. Youyou is the beneficial owner of 86,164,285 shares of Deep Well.
Looks like he build the company to the point that his French friends felt confident to invest the money necessary to convert Mr. Youyou's faith in Horst and Horst's team over the years, into profitable oil production from this immense reservoir. He must be a very astute businessman. If you read his background, he sold luxury watches, jewelry and perfume in the former countries of the Soviet Union right after the collapse of communism, and he was a VERY early investor in DWOG when less patient investors couldn't see the potential.
Is he going to join his fellow directors in converting his options? That will be the ultimate vote of confidence in DWOG's future.
