** Shares of South Korea's oil refineries fall, while
airline stocks gain on tumbling oil prices
** Brent LCOcv1 and U.S. crude CLcv1 prices hit their
lowest since October 2017 on Friday, pushing down U.S. energy
shares more than 3 pct urn:newsml:reuters.com:*:nL2N1XY0TU
** Shares of S-Oil 010950.KS tumble more than 4.1 pct,
while SK Innovation 096770.KS loses nearly 3 pct
** T'Way Air 091810.KS led the gains in airline sector,
jumping as much as 5.3 pct
** Jeju Air 089590.KS and Asiana Airline 020560.KS rise
as much as 3.5 pct each, while Jin Air 272450.KS gains up to
2.9 pct
** The broader KOSPI market .KS11 was trading up 0.5 pct
((hayoung.choi.thomsonreuters.com@reuters.net))