Prime Minister of Poland Donald Tusk intends to change a gas agreement with Russia, if it turns out that the part of needs could be covered by the gas produced from shale. This was stated by Prime Minister during the interview for Radiо Zet. According to his words, the agreement with Russia has not yet been ratified, so is it possible to make changes. However, the comments of Prime Minister can’t be accomplished, as it is impossible to estimate shale fields without extra tests. First results of drilling, starting in June, will be known only in a few months. And final results will be received only in two-three years. READ MORE