Billionaire Profile
Nikolai Buinov
Global Rank
#831

Image: Public domain | via Wikimedia Commons

Nikolai Buinov

CEO, Irkutsk Oil Company (INK)
RU
Real-Time Net Worth
$4.9B
As of December 2025
Age
58
Source
Oil, gas
Industry
energy
Citizenship
RU

Biography

Nikolai Buinov, born in 1967, is a prominent Russian businessman and entrepreneur. His primary source of wealth is the Oil and gas industry through his ownership of Irkutsk Oil Company (INK), the largest private oil company in Russia. Buinov's career began in the early 1990s. He founded Bodaibo Energy in 1995 and later acquired the license that became the Irkutsk Oil Company (INK) in 2000. He is currently the chairman of INK's board, after serving as president since 2011, and he holds a significant ownership stake. As of December 2025, Buinov's net worth is estimated at $4.9 billion.

Wealth Over Time

In-Depth Profile

Early Life

Nikolai Buinov was born on June 19, 1967, in Krasnoyarsk, Russia. He graduated from the Leningrad Institute of Railway Engineers with a Master of Science in Engineering in 1990. His upbringing in a family of entrepreneurs influenced his career path.

Rise to Success

Buinov's career began in 1993 at a timber company. In 1995, he founded Bodaibo Energy with his father. The company supplied fuel and lubricants to gold miners. In 1997, he acquired an oil field license that would later become the Irkutsk Oil Company (INK). In 2000, he co-founded INK with his father and Boris Sinyavsky. Buinov became the president of INK in 2011 and was appointed Chairman of the Board in January 2022. He has been instrumental in growing INK into Russia's largest private oil company and holds a 64% stake.

Key Business Strategies

Buinov's key strategy has been to expand INK's oil production. In 2017, he announced plans to increase crude oil production to 8.5 million tons per year. Since 2017, he has also invested heavily in the hotel business, including the reconstruction of the Wawelberg Bank building.

Philanthropy

Information on Buinov's specific philanthropic initiatives is limited in the search results. However, he is known for his philanthropic efforts and contributions to various charitable causes.

Career Milestones

1990

Graduated

Graduated from St. Petersburg State Transport University.

1993

Began Career

Began his career at a timber company.

1995

Founded Bodaibo Energy

Founded Bodaibo Energy with his father.

1997

Acquired Oil Field License

Purchased an oil field license, which became Irkutsk Oil Company.

2000

Founded INK

Founded Irkutsk Oil Company (INK).

2011

President of INK

Became President of INK.

2022

Chairman of the Board of INK

Became Chairman of the board of INK.

Philanthropy & Social Impact

Charitable Giving

Unknown

Undisclosed

Contributions to various charitable causes.

Controversies & Challenges

2025

Sanctions

Subject to sanctions by the UK government for involvement in obtaining benefits from the Russian government through Irkutsk Oil Company, a company in the Russian energy sector.