The equipment came from Turkey, raising the total value of Halliburton equipment shipped to Russia post-operation shutdown to at least $7,163,317. The former Halliburton unit now known as BurService received 98% of all exports to Russia made since September last year. Its clients include Gazprom (MCX: GAZP ), Rosneft, TNK-BP, and Lukoil. According to customs records, exports of Halliburton equipment to Russia continued until at least June this year. In response to these revelations, Bob Menendez, the leader of the US Senate foreign relations committee, wrote to Halliburton and its counterparts SLB and Baker Hughes earlier this month. The letter was written following reports that these companies continued to trade with Russia after the Ukraine invasion in February last year. Halliburton has maintained that it fully complied with sanctions and ceased all operations in Russia over a year ago.