19 March 2022 - The largest oil companies Halliburton and Schlumberger began to leave Russia
19 July 2022 - Large global oil service companies Baker Hughes, Halliburton, Schlumberger and Weatherford have not yet left Russia
24 April 2023 - Naftogaz wants to attract ExxonMobil, Halliburton and Chevron to increase gas production
You can buy Halliburton products. They closed offices & sellpoints in Russia and don't support russian facist regime