Abu Dhabi’s national oil company, ADNOC, has offered additional barrels of Murban crude to its international minority partners in the onshore concession where the grade is being produced, sources with knowledge of the plan told Bloomberg on Friday. Some of the partners have already sold part of the additional barrels, of yet unknown volumes, on the spot market, according to Bloomberg’s sources. BP, TotalEnergies, China National Petroleum Corporation (CNPC), Zhenhua Oil, Inpex of Japan, and South Korea’s GS Energy are…