SINGAPORE (Standard&Poor's) Feb. 13, 2015--Standard&Poor's Ratings Services said today that Thai Oil Public Co. Ltd.'s weak 2014 financial results have no impact on the corporate credit ratings (BBB/Stable/--; axA/--). Despite the tough industry conditions in the refining sector and our expectation of that continuing for the next 12 months at least, our view is for Thai Oil to remain a "highly strategic" subsidiary of its major shareholder PTT Public Co. Ltd. We had anticipated Thai Oil's weak financial performance when we lowered our stand-alone credit profile on the company to 'bb+' from 'bbb-' on Dec. 11, 2014. We believe the 'bb+' stand-alone credit profile reflects the company's higher sensitivity to oil price fluctuations and inventory losses,