┬áContinental Resources Inc (CLR.N) said on Monday it had agreed to a sweetened offer from founder Harold Hamm to take the U.S. shale oil producer private at a valuation of about $27 billion. Hamm, a legendary oilman who once called the Organization of the Petroleum Exporting Countries a “toothless tiger,” said in June that he wanted to take the company private because public markets have not supported the oil and gas industry. Hamm offered $74.28 per share for the stake not owned by him and the Hamm family trust. He had proposed $70 per share in June. The company’s shares jumped more than 8% to close at $74.14 on Monday and posted a total return of 67% […]