https://interfax.com/newsroom/top-stories/31230/
Russia raises gas pressure at Ukraine's eastern border to contract level - Ukrtransgaz
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https://smiraponitke.com/2016/10/31/ukraine-ukrtransgaz-and-engie-sign-agreement-on-gas-storage-in-ukrainian-ugs.html
Ukraine: Ukrtransgaz and Engie sign agreement on gas storage in Ukrainian UGS – Business World
PJSC Ukrtransgaz and French company Engie have signed an agreement on cooperation for natural gas storage in Ukrainian underground gas storage facilities...
gas storagein ukrainianbusiness worldukraineukrtransgaz