Lee started work in the petroleum industry in 1976 where he worked as an operations engineer in both offshore and onshore well operations. He worked in many international locations including North America, Norway, Indonesia, Africa, Yemen, Syria, Oman, Qatar, Iraq, Egypt, Australia, Russia and Trinidad. He has worked for over 12 companies: PetroCanada, Gulf Canada, BP Resources, TAC Engineering, Dome Petroleum, Qatar LNG, Baker Hughes, NEEXEN, DNO, Virgin Resource and NIko Resources. He is highly experienced in the planning of well operations for drilling, completions and production.