HONG KONG (Standard&Poor's) April 19, 2011--Standard&Poor's Rating Services said in a Credit FAQ published today that cuts to domestic gasoline and diesel prices that Korean oil refining and marketing (R&M) companies announced this month are not expected to result in any ratings changes or outlook revisions for rated companies. Leading Korean oil refining and marketing (R&M) company SK Innovation Co. Ltd. (SK Innovation; BBB/Stable/--) on April 3, 2011, announced a plan to lower domestic gasoline and diesel sales prices by Korean won (KRW) 100 per liter for the next three months--about a 5% cut to current retail prices. Shortly thereafter, Korea's three other refiners, GS Caltex Corp. (GS Caltex; BBB/Stable/A-2), S-Oil Corp. (S-Oil; BBB/Stable/--), and Hyundai