Background and Transaction Structure

The dispute arises from Hess Corporation's 30% working interest in the Guyana Stabroek Block, one of the world's most significant recent offshore oil discoveries. In October 2023, a merger transaction was announced that would result in ExxonMobil acquiring Hess's stake in the Stabroek Block. The Stabroek Block is governed by a 2014 joint operating agreement among the co-venturers, which includes a right of first refusal provision. Chevron Corporation, asserting rights under the JOA's ROFR clause, initiated ICC arbitration to block the transfer of Hess's Guyana stake to ExxonMobil as part of the merger.

The ROFR Dispute

The central legal issue turned on whether the merger triggered Chevron's contractual right of first refusal under the 2014 joint operating agreement. Chevron argued that the merger constituted a transfer of Hess's working interest requiring compliance with the JOA's ROFR notice provisions. Hess apparently contended that the merger structure did not trigger the ROFR or that Chevron's rights were otherwise not implicated by the transaction. The tribunal was required to interpret the scope of the ROFR clause and determine whether the change-of-control transaction fell within its terms.

The Tribunal's Award

The ICC tribunal ruled decisively in Chevron's favor, issuing a $6.2 billion award that includes specific performance requiring Hess to unwind the transfer of its Guyana assets to ExxonMobil. The tribunal determined that Chevron's ROFR was indeed triggered by the merger announcement and that Hess breached the JOA's notice provisions. Beyond the specific performance remedy, the tribunal awarded Chevron $340 million in damages specifically attributable to Hess's failure to comply with the ROFR notice requirements. The award's magnitude reflects the extraordinary value of the Guyana Stabroek Block assets and the tribunal's enforcement of ROFR provisions through an unwinding remedy.

Implications for Upstream M&A Practice

This award carries substantial implications for structuring upstream acquisitions involving assets subject to joint operating agreements with ROFR provisions. The tribunal's determination that this merger triggered ROFR rights demonstrates the potential reach of ROFR enforcement in change-of-control contexts. Practitioners structuring E&P acquisitions must now account for the risk that merger structures may not avoid ROFR obligations in JOAs, potentially requiring advance negotiation of ROFR waivers or modifications as a condition to closing. The $340 million damages award for notice provision breaches, separate from the specific performance remedy, underscores the importance of strict compliance with JOA procedural requirements even where parties dispute whether a ROFR applies.