This was reported by the US Embassy in Poland.

“The United States, Poland and Ukraine, during a meeting in Warsaw, signed an important trilateral cooperation agreement to strengthen regional energy security through diversification of natural gas supplies,” the statement said.

The United States, Poland, and Ukraine have signed an important trilateral cooperation agreement to strengthen regional energy security via diversified natural gas supplies while meeting in Warsaw. @ SecPerry @ UKRinPLpic.twitter.com / R34fDNPQbZ

- US Embassy Warsaw (@USEmbassyWarsaw) 31 באוגוסט 2019

According to Polske Radio, the corresponding document was signed by US Secretary of Energy Rick Perry, Secretary of the National Security and Defense Council of Ukraine Alexander Danilyuk and the representative of the Polish government for strategic energy infrastructure Pyotr Naimsky.

Earlier it was reported that representatives of the governments of Poland, the United States and Ukraine intend to sign a gas agreement in Warsaw.

On August 31, Naimsky stated that Warsaw would be able to supply Ukraine with 6 billion cubic meters of gas per year, provided that the Ukrainian side built an interconnector.