Spring Insight (IST) applicants have rated the interview process at bp with 3 out of 5 (where 5 is the highest level of difficulty) and assessed their interview experience as 100% positive. To compare, the company-average is 59.1% positive. This is according to Glassdoor user ratings.
Here are the most commonly searched roles for interview reports -
CV screen, extremely lengthy online forms, many online tests (SJT, numerical), followed by a competency phone interview and offer. The whole process (for the london office) took around a month. At the end of the insight week there is an additional interview: succesful candidates go to an assessment centre.