A concrete platform with fading blue paint marks the birthplace of the modern oil and gas industry in southeast Texas. Weather-beaten signs describe how drillers tapped the Spindletop oil well in 1901‚ a discovery that launched petroleum giants Texaco‚ Mobil and Gulf Oil. Nearby‚ a red pipeline traces a neat path above flat‚ gravel-covered earth. French company Air Liquide started building this unassuming facility‚ with a wellhead and other machinery‚ on the iconic site in 2014 to store what...