Murphy Oil Corp. MUR, +0.00% on Wednesday said company Chief Executive Roger W. Jenkins, pending test results, has a presumptive diagnosis of COVID-19, and has taken a temporary medical leave. David R. Looney, Murphy Oil’s executive vice president and chief financial officer, will temporarily assume CEO duties. Murphy Oil said Jenkins is expected to “completely recover.” Murphy Oil shares are down 79% over the last year. The broader S&P 500 index SPX, +1.15% is down 12% in the last year.