(ANSA) - WARSAW, 15 NOV - Poland's state gas company PGNiG says it has notified Russia's Gazprom that will not extend a long-term deal on gas imports when that deal expires in three years. The announcement on Friday comes as Poland has been working to reduce its dependence on Russian energy sources. Those efforts include replacing Russian gas with imports from the United Stat es and Norway. PGNiG said that it had sent Gazprom notice that it will termina te the so-called Yamal contract as of Dec. 31, 2022. (ANSA-AP).