* Mild weather forecasts keep curve soft
Jan 18 (Reuters) - British spot gas prices rose on Monday on the back of higher heating demand, while later-dated contracts fell on expectations of milder weather.
Gas for instant delivery rose 0.35 pence per therm, or 1.10 percent, to 32.10 p/therm by 0938 GMT, while the day-ahead contract dipped to 32.10 p/therm, 0.25 p/therm below Friday levels.
A UK gas network oversupplied by 4.5 million cubic metres/day (mcm/day) failed to dent bullish sentiment, given that demand was 21 percent above seasonal norms at 349.3 mcm/day.
"Forecasts of colder conditions into tomorrow on top of ongoing outage in Norway are seeing contracts delivering this week make gains," said Marcel Boonaert, head of trading and portfolio at Wingas UK.
Gas deliveries from main supplier Norway looked steady as Langeled, the country's main export pipeline, pumped a little under 60 mcm/day to Britain, while the South Hook liquefied natural gas (LNG) terminal flowed nearly 35 mcm/day.
Gas prices further forward eased, with weekend gas down 0.95 pence/therm at 30.85 p/therm.
Benchmark summer 2016 gas contract traded 0.45 p/therm lower as crude oil prices slid to levels not seen since 2003, trading at around $27.67 a barrel following the lifting of sanctions on Iran.
In the Netherlands, day-ahead gas at the TTF hub fell 0.20 euro to 13.23 euros per megawatt-hour.
In Europe's carbon market, the front-year EU Allowance price fell by 0.10 euros to 6.62 euros a tonne. (Reporting by Oleg Vukmanovic in Milan; Editing by xx)