Carlyle’s $22B Lukoil deal stalls as US approval drags on for nearly 10 months, leaving European refineries idle

A deal that was supposed to untangle one of Russia’s largest oil companies from its international assets has instead become a case study in sanctions-era paralysis. Carlyle Group’s proposed $22 billion acquisition of Lukoil’s overseas operations, announced on January 29, 2026, remains stuck in the US government’s approval pipeline nearly eight months later, with no closing authorization in sight.

Meanwhile, European refineries that were supposed to keep running under new ownership sit idle, compounding fuel supply pressures in a market that was already stretched thin.

A deal frozen in regulatory amber

The transaction covers a sprawling portfolio of international assets: upstream oil fields in Iraq, refineries in Romania and Bulgaria, and retail operations spanning multiple countries. Kazakhstan holdings, including stakes in the Tengiz and Karachaganak fields and the Caspian Pipeline Consortium, were carved out of the deal.

The Office of Foreign Assets Control, the US Treasury arm responsible for enforcing sanctions, has issued a series of general licenses allowing negotiations and basic maintenance activities to continue. The latest iteration, GL 131J, extends through October 22, 2026. But there’s a critical distinction between permitting talks and permitting a close. OFAC has done the former, not the latter.

The sanctions themselves trace back to October 2025, when the US imposed sweeping restrictions on Russian energy interests in response to the ongoing conflict in Ukraine. Severing Lukoil’s international operations from its Russian parent company in a way that satisfies those sanctions requires an extraordinary level of compliance work, essentially rebuilding corporate structures, supply chains, and financial flows from scratch.

Carlyle continues conducting due diligence and has explored potential partnerships to share the risk and complexity of the acquisition. The deal remains non-exclusive, meaning Lukoil has also been in discussions with other parties, including Exxon Mobil and Chevron. Quantum Energy Partners and Abu Dhabi’s IHC have also surfaced as interested parties. One earlier bidder, commodity trader Gunvor, withdrew after drawing US criticism for its involvement.

Romania’s refining crisis

The most tangible consequence of the stalled deal is playing out in Romania. Lukoil’s Petrotel-Lukoil refinery, which accounts for roughly 20% of the country’s total refining capacity, has been idled. The facility is currently undergoing insolvency proceedings, and Lukoil requested an OFAC license to restart operations in July 2026.

Bulgaria faces a similar dynamic. Lukoil’s Neftochim Burgas refinery, the largest in Southeastern Europe, has been a focal point of sanctions-related uncertainty for years.

The sanctions compliance puzzle

At the heart of the delay is a genuinely difficult regulatory challenge. OFAC doesn’t just need to approve a financial transaction. It needs to be satisfied that the resulting corporate structure cleanly separates the acquired assets from any ongoing Russian ownership, control, or benefit. For a company as deeply integrated into Russia’s energy complex as Lukoil, that’s a massive undertaking.

The repeated extensions of general licenses suggest OFAC recognizes the strategic value of moving these assets into Western ownership, but isn’t willing to cut corners on compliance. Each extension buys more time for negotiations without signaling that approval is imminent.

European governments face an uncomfortable tension between supporting sanctions enforcement and ensuring domestic energy security. Romania’s loss of 20% of its refining capacity is the kind of concrete, measurable cost that tests political patience with sanctions regimes, especially when voters are paying more at the pump.