In February 1935, J.D. Rockefeller's Stanolind and British-owned Amerada Petroleum made the first of many discoveries in the expansive Katy gas field.
According to Adams, the hydrocarbons produced from the Katy field were uniquely suited for use in the manufacture of aviation gasoline, rubber, and toluene—which, among other uses, is a raw material for the explosive TNT. The demand for Katy's natural gas was sufficiently high that the companies with an interest in the acreage, including Humble Oil, decided to jointly fund a cycling plant—a gas processing facility built over the field and designed to maximize recovery without flaring or wasting residue gas.
Built at a cost of $3 million—$50 million today when adjusted for inflation—the gas plant covered 100 acres and included more than 150 buildings. The plant was located in the center of the roughly 35,000-acre gas field, most of which lies in Waller County. The Humble plant was a critical strategic resource during World War II when workers helped to produce millions of gallons of aviation fuel for use by Allied forces. By the mid-1950s, the plant was the largest gas cycling project in the world.
"Humble Oil had integrity," said Linda Mikeska, whose father and husband both worked at the plant. "They instilled it into their employees and their employees instilled it in their families. They were very family oriented."