Corporate governance often relies on the three lines of defense model. Texas Oil Company drills for oil in the Gulf of Mexico and is extremely concerned with the risks associated with a well blowout where crude oil is emitted into the gulf causing a substantial environmental disaster. Texas is a large company with an Environmental Services department within corporate headquarters in Houston. It also has a 50 member internal auditing department. Day to day operational decision for drilling in the Gulf take place at the drilling field office in New Orleans Louisiana. Based on the structure of Texas, describe how the three lines of defense model would be applicable for Texas.