After a year trying to get a farm-out deal with Providence Resources to develop the Barryroe oil field off the coast of Cork across the line, Ståle Fjelland is in a reflective mood. When we speak, the exploration veteran is in his office in Sandnes, Norway’s seventh-largest city. Over the last year, Fjelland and his team had worked with Irish exploration company Providence on assembling a consortium of exploration big hitters including Schlumberger, Maersk and Aker to develop the field by deferring payments to them. But as things progressed, it became clear that more cash would be needed to finance…