began transiting gas eastwards from Slovakia in 2014, and Shell began in 2015. In response to the reverse flows initiative, Russia has cut supplies to central and eastern European countries, seeking to prevent exports to Ukraine. In September, Hungary stopped supplying gas to Ukraine, days after a meeting between Hungarian Prime Minister Orban and Gazprom's CEO. Gazprom charges widely different prices to different European countries, which many believe is based on Russia's political goals in the region. Ukraine is seeking arbitration from the "Stockholm Chamber of Commerce" to fairly assess past debts between the two countries and to establish a fair basis of future operations. Since April 2014, Ukraine is the only non-EU country to voluntarily publish its volume in storage facilities on the EU transparency platform of Gas Storage Europe (GIE). The company also publishes data on the amount of gas entering and leaving the country. In November 2014, Ukrtransgaz, the operator of Ukraine's gas transportation system, began posting daily statistics on the information platform of the European Network of Transmission System Operators for Gas (ENTSOG). Also, the same year Naftogaz launched a new website in order to showcase its transparency initiatives. In March 2018, "Naftogaz" won a trial against Russian Gazprom for shortened gas supplies before the Arbitration Institute of the Stockholm Chamber of Commerce, and was set to receive net amount of $2.56 billion. As of 31 December 2017, Naftogaz has around 72,000 employees and annual revenue of €7.443 billion. Of total revenue, €2.908 billion (39.07%) is generated from oil and gas production, €2.415 billion (32.45%) from oil and gas transit, €1.137 billion (15.28%) from oil transmission and sales and €817 million (10.98%) is generated from gas transmission and sales. Also, a total transit volume in 2017 stood at six-year maximum of 93 billion cubic meters. The transit contract between the Naftogaz and Gazprom is set to expire in December 2019, after which Ukraine will cease to be the main transit country of Russian gas to the European Union countries. In April 2019, the Chinese Sinosure agreed to loan $1 billion in insurance coverage to Naftogaz. In the first half of 2022, Naftogaz had a deficit of $1.6 billion and as a consequence, went into default. Three Gas Wars The first war According to Gazprom, in February 1993, Ukraine's debt exceeded 138 billion rubles. That year Gazprom signed an agreement in Warsaw on the construction of a