Once your resume got shortlisted, they may ask you to come in person for a face to face interview. They will ask you the questions based on your experience, what have you done and all. Also they will concentrate on oil and gas related work.

You need to schedule interview with HR by sending the resume through mail. If your profile is suitable, you will get the call from HR. Once the interview is done, they will rank your profile with other candidates and will call you if selected for further discussion