1 Semester Credit Hours Prerequisites: PETR majors only; 3.0 TTU GPA; C or better in PETR 3303, PETR 3103, PETR 3306. Corequisites: GEOL GEOL 4334, PETR 3105, ENCO 3350. Rotary drilling and rheology lab. Design and conduct experiments in order to analyze and interpret data. (Design course)