It was composed of an industrial airport, a giant rail yard, access to the Interstate and 30 million square feet of warehouses. But luckily for Perot that was not all as drillers discovered the giant Barnett Shale natural gas field right under his land. Since, he has sold off most of the natural gas reserves for $700 million and many of the Alliance buildings for over $800 million. Now, he has plans to build some 30 million square feet in Fort Worth and to carry out other major construction projects in California, Florida and Pennsylvania. Furthermore, he is going to develop a giant oilfield in the Kurdish region of Iraq through his oil company HKN Energy. Aside from putting his money in business, Henry has also united with his four sisters in the donation of $50 million towards the construction of Dallas’ new Perot Museum of Nature & Science.