Tullow reports first-half loss on hefty exploration write-offs

(Reuters) - Oil and gas producer Tullow Oil Plc reported a net loss for the first half of the year after writing off more than $400 million (236 million pounds) in exploration costs. Tullow reported write-offs to the tune of $402 million after drilling dry holes in Mauritania, Ethiopia and Norway over the past six months. Read More http://ift.tt/1n1OU5w