SKOPJE (North Macedonia), May 15 (SeeNews) - North Macedonia's oil refinery Okta [MSE:OKTA] said on Friday it has turned to a net loss of 292.66 million denars ($5.14 million/4.74 million euro) in the first quarter of 2020 from a net profit of 23.7 million denars in the same period of last year.Â