One interviewer who was nice. General questions about the oil market. Would recommend reading up on basics. Opec, brent, wti take a long time to get back to you and theres alot of stages.

The process is composed of 2 rounds of interviews with senior members and an excel test. Both interviews aim at testing reasoning skills, the first one includes more behavioral questions, the second is more analytical and includes the analysis of some charts. Getting to the interview with some basic understanding of the most recent market dynamics and trends is recommended.