An Angolan oil producer has used its rights as an existing partner to secure Chevron’s $260 million offshore asset sale, preventing a London-listed company from entering two producing blocks.

Etu Energias agreed to acquire Chevron’s 31% operated interest in Angola’s Block 14 and its 15.5% non-operated interest in the adjoining Block 14K.

The agreement carries a base cash price of $260 million and an economic effective date of January 1, 2026, according to the transaction terms reported by World Oil⁠. The assets had initially been destined for Energean.

In March, Chevron agreed to sell the same interests to the London-listed energy company for a base price of $260 million. Energean described the acquisition as an opportunity to enter Angola through already-producing fields.

Etu, however, was already a shareholder in the blocks. It exercised pre-emption rights that allowed it to match the terms offered by the prospective outside buyer.