On January 31, 2026, Kayrolla Zhekeiuly Kassenov, the Operator, formation pressure maintenance at the Akshabulak field was retired due to pension age.

Kairolla Zhekeiuly has the secondary specialized education. In 2006, he graduated from Kyzylorda State University name after Korkyt Ata in Specialty of Mechanical Engineer (O&GFDO).

In 1999, he started his work activities at JV Kazgermunai LLP.  Over the years, he has held various positions from watchman to an oil & gas production operator and since 2009 he has been working as formation pressure maintenance operator at the Akshabulak field. The total work experience is more than 26 years in the Company.

Kairolla Zhekeiuly for conscientious work of the JV Kazgermunai LLP was awarded and his awards are as follows: in 2015, Certificate of Honor from E&P KazMunayGas JSC on the Oilman Day; in 2019,  Jubilee Medal "120th anniversary of Kazakhstan Oil"; in 2021, Certificate of Honor from the Company’s Management Board on the Independence Day of the Republic of Kazakhstan; in 2025, Letter of Gratitude from the Prime Minister of the Republic of Kazakhstan.