NEW DELHI, Jan 7 (Reuters) - Asia"s naphtha crack climbed on Friday, snapping a four-day losing streak, after prices found support from rising crude oil benchmarks, although increasing European inventories limited gains. The refining profit margin rose to $132.75 a tonne, up $3.40 from the last close. However, naphtha margins posted a loss of more than 19% this week on demand concerns. Naphtha inventories at Amsterdam-Rotterdam-Antwerp (ARA) refining and storage area rose 45% to 237,000 tonnes last week, data from Dutch consultancy Insights Global showed on Thursday, while gasoline stocks increased by almost 10% to 1.098 million tonnes. The refining profit margin for gasoline in the region eased to $10.67 a barrel from $11.23 in the last session. The crack registered a weekly loss of more than 4% as Omicron cases surged across the globe and dented consumption sentiment. In physical markets, Unipec purchased two cargoes of the benchmark 92-octane grade, while Gunvor and ENOC bought a cargo each of the 92-octane grade and 95-octane grade of gasoline. NEWS - Oil prices edged up on Friday, heading for their biggest weekly gains since mid-December, fueled by supply worries amid escalating unrest in Kazakhstan and outages in Libya. read more CASH DEALS : Four gasoline trades. CASH ($/T) ASIA CLOSE Change % Change Prev Close RIC OSN Naphtha CFR Japan M1 750.00 17.50 2.39 732.50 OSN Naphtha CFR Japan M2 742.00 17.50 2.42 724.50 OSN Naphtha Diff 8.00 0.00 0.00 8.00 Naphtha Netback FOB Sing 81.33 1.94 2.44 79.39 Naphtha Diff FOB Sing 0.40 0.00 0.00 0.40 Naphtha-Brent Crack 132.75 3.40 2.63 129.35 Gasoline 97 95.75 1.32 1.40 94.43 Gasoline 95 94.80 1.76 1.89 93.04 Gasoline 92 92.97 1.32 1.44 91.65 Gasoline crack 10.67 -0.56 -4.99 11.23 For a list of derivatives prices, including margins, please double click the RICs below. Brent M1 Naphtha CFR Japan M1 Naphtha CFR Japan M1/M2 Naphtha CFR Japan M2 Naphtha Japan-Sing Netback M1 Naphtha Japan-Sing Netback M2 Naphtha FOB Sing M1 Naphtha FOB Sing M1/M2 Naphtha FOB Sing M2 Naphtha Cracks M1 East-West Naphtha M1 East-West Naphtha M2 NWE Naphtha M1 NWE Naphtha M1/M2 NWE Naphtha M2 Crack NWE Naphtha-Brent M1 Crack NWE Naphtha-Brent M2 *Sing refers to Singapore