German energy Wintershall said its development plans for the Maria oil field in the Norwegian Sea were approved by the government in Oslo. “In a challenging oil price environment, we are moving ahead with the execution of this key development project,” Hugo Dijkgraaf, the field’s project director for Wintershall, said in a statement. “Through Maria we are investing in one of our core international regions which demonstrates our commitment on the Norwegian Continental Shelf.” Wintershall in June sold its minority shares in four fields on the Norwegian shelf to Tellus Petroleum, which has headquarters in Oslo. Tellus, which said its strategic goal is to become a premier player offshore Norway, agreed to pay more than $600 […]