HONG KONG (S&P Global Ratings) Aug. 26, 2016--S&P Global Ratings today said the rating on CNOOC Ltd. (A+/Negative/--; cnAAA/--) is not immediately affected by its headline net loss in the first six months of 2016. The company's key credit metrics remain on track with our full-year forecast. CNOOC Ltd. made a headline net loss of Chinese renminbi (RMB) 7.7 billion, in line with the company's profit warning on July 28, 2016. The loss was primarily driven by a RMB10.4 billion impairment, mainly related to fields in North America, Europe, and Africa. The impairment was a result of falling oil prices, and has no impact on the company's cash flow. Excluding impairments, 2016 interim EBITDA of about RMB35 billion was on