Group 1 - European natural gas prices are set to rise for the first time in three weeks, driven by waning optimism regarding U.S. President Trump's efforts to end the Russia-Ukraine war [1] - The benchmark futures price has increased slightly, with an expected rise of approximately 8% for the week, following a drop to a one-year low due to market expectations of a potential peace agreement [1] - The Dutch TTF natural gas monthly futures rose by 1.1% to €33.55 per megawatt-hour [1] Group 2 - Analysts from Energy Aspects, led by Erisa Pasko, indicate that a satisfactory agreement for all parties is still a long way off [3] - The European natural gas market is preparing for upcoming maintenance work in Norway, a key gas supplier, which will lead to reduced supply [3] - Higher prices may be necessary to attract liquefied natural gas shipments and compete with Asian buyers for supply [3]