Tullow Oil’s shares drop sharply after the company loses an arbitration case involving taxes related to oil fields in Ghana. Multiple reports say the ruling goes against Tullow and triggers a significant payment claim tied to taxes on assets that represent most of the company’s production.
Bloomberg reports that the loss results in the stock falling by more than a third. Investing.com similarly reports a steep decline of around 36% following Ghana’s win, citing the dispute value of $196.5 million. The outlets align on the core event—a decisive arbitration outcome in Ghana’s favor—and on the scale of the market reaction. Differences mainly center on how the move is reported (e.g., “more than a third” versus “36%”) and the emphasis on the stated dispute amount.
Overall, the coverage indicates the ruling is financially material for Tullow and is directly linked to tax treatment of Ghana production, leading to an immediate and large reassessment of the company’s outlook by investors.