Transocean to Acquire Valaris in $17 Billion Offshore Drilling Deal

Transocean Ltd. and Valaris Limited announced Monday they have agreed to merge in an all-stock transaction that would create one of the world’s largest offshore drilling contractors, with a combined enterprise value of about $17 billion.

Under the deal, valued at roughly $5.8 billion in equity, Transocean shareholders will own about 53% of the combined company, while Valaris shareholders will hold the remaining 47%.

The merger brings together a fleet of 73 rigs spanning ultra-deepwater, harsh-environment, and shallow-water markets, including 33 ultra-deepwater drillships, nine semisubmersibles, and 31 modern jackups. The combined company will also carry an industry-leading backlog of about $10 billion.

“This transaction creates a very attractive investment in the offshore drilling industry,” said Transocean President and CEO Keelan Adamson, calling the deal well-timed for what he described as a multi-year offshore drilling upcycle.

The companies expect the merger to generate more than $200 million in cost synergies, on top of Transocean’s existing cost-reduction program that targets more than $250 million in savings through 2026.

Valaris CEO Anton Dibowitz said the combination would reunite Transocean with “world-class jackup expertise,” creating a company capable of operating across all offshore environments and water depths.

Valaris shareholders will receive 15.235 shares of Transocean stock for each Valaris share. Adamson will continue as CEO of the combined company, while Valaris CEO Jeremy Thigpen will serve as executive chairman of the board.

The company will remain incorporated in Switzerland, with its primary administrative office in Houston.

The transaction has been unanimously approved by both boards and is expected to close in the second half of 2026, subject to regulatory approvals and shareholder votes. Major shareholders on both sides have already committed to support the deal.

Management said strong cash flow from the combined fleet is expected to support accelerated debt reduction, with leverage projected to fall to around 1.5x within two years of closing.

Industry analysts have taken note of the transaction’s strategic timing. Leslie Cook, Principal Analyst for Upstream Supply Chain at Wood Mackenzie, commented that once finalized, Transocean will solidify its market-leading position in the high-spec ultra-deepwater rig market and become a top-five player in the high-spec jack-up market??.

“We are in a highly consolidated market with little room for organic growth. As a result, we did expect to see more consolidation this year and acquiring new backlog makes sense for Transocean,” Cook noted??. She added that as the market moves closer to duopoly conditions seen in other supply chain sectors, rig owners will gain pricing power, supporting prices in the short term while positioning Transocean to more efficiently capitalize on offshore upcycles longer-term??.

Evercore is advising Transocean, while Goldman Sachs is advising Valaris. The companies are scheduled to discuss the deal on a joint investor call later today.

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