JOAs: The Stabroek Arbitration and the Limits of ROFR Protection in Upstream Joint Ventures

The arbitration arising from the Stabroek Block joint operating arrangements between ExxonMobil, CNOOC, and Hess Corporation (and the related Chevron acquisition) has emerged as an important structuring consideration for oil and gas lawyers and joint venture partners in drafting and negotiating upstream JOAs.

Facts[1]

The dispute arose in the context of the Stabroek Block offshore Guyana, a highly material petroleum asset operated by ExxonMobil, with Hess Corporation and CNOOC as non-operating co-venturers holding participating interests under a Joint Operating Agreement (JOA). Hess held approximately a 30% participating interest in the joint venture.

In 2023, Chevron entered into a share-for-share transaction to acquire 100% of Hess Corporation in a deal valued at approximately US$53 billion. Importantly, the transaction was structured as a corporate acquisition rather than a direct transfer of Hess’s participating interest in the Stabroek Block. As a result, Hess remained the registered holder of its 30% interest in the joint venture post-transaction, but ultimate control of Hess shifted to Chevron.

ExxonMobil and CNOOC objected to the transaction. They argued that, notwithstanding its corporate form, the practical effect of the acquisition was that Chevron would indirectly acquire Hess’s participating interest in the joint venture. On that basis, they contended that the transaction should be treated as a transfer of the JV interest for the purposes of the ROFR provisions under the JOA. They maintained that they were entitled to be offered the opportunity to acquire the interest on the same terms under the contractual pre-emption mechanism.

Chevron and Hess resisted this characterisation. They argued that the JOA ROFR provisions were limited to direct transfers, assignments, or disposals of participating interests, and did not extend to changes in share ownership or corporate control of a JV participant. Since there was no transfer of the participating interest itself, the ROFR mechanism was not engaged. Any extension of the clause to cover M&A transactions, they argued, would amount to rewriting the contract.

The dispute was referred to ICC arbitration for determination of the proper interpretation of the ROFR clause and whether it extended to indirect transfers arising from corporate-level acquisitions.

Decision of the Tribunal

Based on publicly reported information, the tribunal is understood to have accepted the Chevron and Hess position and rejected the attempt by ExxonMobil and CNOOC to characterise the transaction as a transfer of a participating interest under the JOA.

The tribunal drew a clear distinction between a direct transfer of a participating interest and a corporate-level change of control resulting from a share acquisition. It is understood to have held that, under a standard AIPN-style JOA, the ROFR mechanism is triggered only where there is an actual transfer, assignment, or disposition of the participating interest itself.

A share-for-share acquisition of the corporate entity holding the interest does not constitute such a transfer. Accordingly, the tribunal declined to extend the ROFR provisions beyond their express contractual scope. The result was that Chevron’s acquisition of Hess was permitted to proceed, and Hess’s participating interest in the Stabroek Block remained intact within the joint venture structure.

Key Lessons for Venture Partners

The Stabroek arbitration underscores a fundamental principle in upstream joint ventures: control rights exist only to the extent they are clearly and expressly drafted in the JOA. While ROFR provisions are often commercially perceived as broad protective mechanisms, their legal operation is in fact confined to direct transfers of participating interests, unless expressly expanded by clear contractual language.

In the instant case, the tribunal’s approach (as reflected in public reporting) confirms that a change in corporate ownership of a JV participant does not, without more, trigger pre-emption rights under a standard AIPN-style JOA. Accordingly, corporate acquisitions of JV participants may fall entirely outside the scope of standard pre-emption protections. This reflects a clear contractual distinction between asset-level transfers, which are regulated by the JOA, and entity-level transactions, which are not unless expressly brought within the agreement. If co-venturers intend to regulate indirect entry through M&A activity, the JOA must clearly include appropriate mechanisms such as change-of-control triggers, deemed transfer provisions, or consent rights over shareholder-level transactions.

[1] The arbitration award itself is not public. The factual background, arguments, and outcome discussed in this note are based on publicly available reporting.