This is stated on the website of the President of Ukraine.
“The parties also discussed cooperation in the energy sector, noting the importance of the signed memorandum of understanding between Ukraine, Poland and the United States. Vice President Mike Pence emphasized United States support for Ukraine’s independence on the energy issue, ”the statement said.
Earlier it was reported that representatives of Ukraine, Poland and the United States signed an agreement on gas cooperation between the countries in Warsaw.
On August 31, the representative of the Polish government on strategic energy infrastructure Pyotr Naimsky said that Warsaw would be able to supply Ukraine 6 billion cubic meters of gas per year, provided that the Ukrainian side built an interconnector.