Borneo Oil Bhd chairman Tan Kok Chor has died at the age of 76, the company confirmed on Tuesday.

The news marks a significant leadership change for the Malaysian energy producer, which has relied on Tan’s stewardship during a period of volatile commodity markets and regional supply shifts.

Tan served as chairman for many years, guiding the company through expansions in its upstream operations and navigating the complexities of the Southeast Asian energy landscape.

His departure leaves a void at the top of the board, prompting questions about the immediate succession plan and long-term strategic direction for the firm.

The market reaction was muted in early trading, with shares of Borneo Oil (BRNL.KL) showing limited volatility as investors digested the news.

Traders are likely to monitor the stock for any signs of uncertainty regarding management continuity or potential shifts in capital allocation policy.