SINGAPORE, Jan 31 (Reuters) - Asia's middle distillates markets were thinly discussed on Friday, with prices little changed, as some traders were still away for the holidays though February refiner sales resumed the momentum.

More offers emerged from South Korea, with GS Caltex seeking to sell more high sulphur gasoil cargoes, in line with earlier expectations. MDIS/TENDA

Meanwhile, some supply issues at one Southeast Asian refining site were still present - with some cancellation of second-half February cargoes likely, one trade source who was affected said.

Jet fuel markets were also slightly supported as the export arbitrage to the U.S. West Coast widened in the past two trading sessions.

Refining margins GO10SGCKMc1 closed at slightly above $14 a barrel, the highest for the week.

In spot cash markets, differentials GO10-SIN-DIF were little changed as discussions on the trading window stayed muted with some traders still away for the holidays.

Regrade JETREG10SGMc1 held its ground at discounts of 60 cents per barrel, with some traders expecting swing cargoes in India and the Middle East to pivot east again due to the price strength here.

SINGAPORE CASH DEALS O/AS

- No deals for both fuels

INVENTORIES

- Middle distillates stocks held at Fujairah Oil Industry Zone gained to a two-week high of 2.731 million barrels in the week ended Jan. 27, according to industry information service S&P Global Commodity Insights. FUJAIRAH/

- Singapore's middle distillates stocks rose for the first time in three weeks as net diesel/gasoil exports slipped and net imports of jet fuel/kerosene soared, official data showed on Friday. O/SING1

- Gasoil stocks held independently in the Amsterdam-Rotterdam-Antwerp $(ARA)$ refining and storage hub, which include diesel, fell 1% to 2.43 million metric tons. ARA/

REFINERY NEWS REF/OUT

- Russia's offline primary oil refining capacity in January is estimated to be up 44% from December, according to Reuters calculations based on data from industry sources.

- U.S. crude oil refiner Valero Energy Corp VLO.N said on Thursday it plans to operate its 14 refineries up to 90% of their combined total complete throughput capacity of 3.2 million barrels per day (bpd) in the first quarter of 2025.

NEWS

- India's state-run Bharat Petroleum Corp BPCL.NS has awarded a 12-month tender to import 1 million barrels per month of Abu Dhabi's Murban crude oil from April to TotalEnergies TTEF.PA, two sources with knowledge of the matter said.

- Oil prices were steady on Friday but on course for a weekly decline as markets wait to see if U.S. President Donald Trump follows through on his threat to impose tariffs on Mexico and Canada this weekend.

- An oil refinery in Russia's southern Volgograd region caught fire after an overnight Ukrainian drone attack, but the blaze has now been put out, the regional governor said on Friday.

PRICES

(Reporting by Trixie Yap; Editing by Shreya Biswas)

((trixie.yap@thomsonreuters.com;))