Dmitry Viktorovich Avdeev

Integra Group engages in provision of drilling, workover and oilfield services. Its subsidiaries, provides drilling, workover, and other oilfield services to the petroleum industry; and manufactures specialized tools used in the exploration, development, and production of oil and gas. The company operates in Drilling and Workover, and Technology Services segments. The firm services include oil and gas equipment rental services and servicing; oil and gas wells drilling services; bit services; integrated project management services; well construction; supervising services of personnel controlling; well testing; fishing services; and directional drilling services. The company was founded in March 2004 and is headquartered in Moscow, Russia.

LetterOne Holdings SA (L1) is an independent private equity firm headquartered in Luxembourg, Luxembourg. The firm was founded in 2013 by Mikhail Fridman.