Exxon Mobil Corporation closed at $166.29 on August 21, 2026, marking a 0.89% gain over the prior 24-hour period. The move extended a broader upward trend for the oil major, which has posted a 4.81% rise over the past seven days.
The 30-day performance has been notably stronger, with shares climbing 9.60% over that span. Exxon Mobil's market capitalization stood at $677.52 billion as of the close.
The session's gain added incrementally to what has been a sustained period of appreciation for the stock. The 30-day advance of 9.60% represents one of the more significant intermediate-term moves for the integrated energy company in recent trading.
No single catalyst was identified in the available data to explain the daily or weekly price movement. The figures reflect market pricing as recorded on August 21, 2026.
