As a part of PET 333E: Drilling Engineering course,  Ms. Sıla Erdurmuş and Mr. Burak Büyükkağnıcı from Baker Hughes gave a 2-hr lecture on Directional Drilling. We would like to thank Baker Hughes, Mr. Koray Gözübüyükoğulları (Country Manager for Turkey), Ms. Emilya Mammadova (Sales Manager), Ms. Sıla Erdurmuş (Field Engineer) and Mr. Burak Büyükkağnıcı (Field Engineer) for their time and sharing valuable field experiences.