A little-known energy exploration company said on Tuesday that it has made a world-class oil discovery in remote Alaska, potentially breathing new life into the state’s declining North Slope. The company says it expects to be able to extract between 1.8 billion and 2.4 billion barrels from the discovery, probably using barges built along the Gulf Coast, then towed to Alaska and permanently sunk in the bay to create man-made drilling islands. “It is not going to be easy, but we’ve had projects like this around the world,” said Caelus Energy Chief Executive James Musselman. He previously led Kosmos Energy Ltd. KOS -4.77 % and the former Triton Energy, exploration firms that made giant finds off the west African coast. Caelus said it planned to build an $800 million, 125-mile pipeline that will carry the oil underneath state-owned waters to connect with existing pipelines. That idea likely will generate […]