How is Oil and Gas Industry related to Electrical engineering jobs?

I don't understand how oil and gas industry has anything to do with electrical engineering jobs??


Am I not seeing this because currently I am working as a electronics engineer ?





This is how I am thinking about this - Oil and gas industry , digs up oil , provides it to our cars and trucks so they can run. Now I don't understand how or where ';Electrical engineers'; come into play into this ?? Please make me understand. I want to know.





P.s: I am an entry level electronics engineer, with a degree in ';Electrical engineering'; , Currently I am located in Houston, texas.How is Oil and Gas Industry related to Electrical engineering jobs?
A great deal of electric power is used in extracting oil and gas from the ground, transporting it through pipelines, separating and refining the crude products and distributing the products. Electrical engineers design the required electrical equipment and the associated electric power distribution and control systems. In some situations, electric power must be generated on site rather than purchased from electric utility companies. In addition, electrical engineers are involved in the process instrumentation and control system design. The process control includes both computer systems and specialized electronic equipment.