In the companies Halliburton and Baker Hughes, which are key players in the market in the oil and gas service sector, said about the refusal from the intentions of the merger on the background of the possible problems with the approval of the transaction in a number of countries in the world, due to fears of authorities regarding a possible reduction in the level of competition on the market. Furthermore, according to some analysts estimate, the positive effects of such a step at this point decreased. Previously, the amount of the transaction was estimated at 35 billion dollars. This fact is negative for Halliburton shares, but a greater impact at the moment will be the oil price and expectations about the future prospects of the oil and gas sector. We forecast a drop in the company's stocks in the near future by 7-10%.