However, the Government had previously refused to be drawn on when a decision would be announced.
Ms Fahnbulleh, a keynote speaker for the conference, held by the trade body for the energy sector, was asked if decisions had been made on either field.
She replied: “As you will understand, we are in a quasi-judicial process, and I won’t get into the specifics. What I will say is we have got all the information on Jackdaw, and the department has gone through that and so there is a decision that will be imminent.
“Rosebank will take a little bit longer. But because my first two months of the job have been completely dominated and inundated with this question, when I have got a 100,000 things in my in-tray, I have an incentive to make sure that we come to decisions as quickly as we can.”