Rosneft’s logo is seen at the company’s headquarters in central Moscow. Rosneft will sell drilling rigs to Norway’s North Atlantic Drilling in return for shares in the firm, going ahead with an earlier agreed deal despite sanctions over Ukraine.

Russia’s top crude oil producer Rosneft will sell drilling rigs to Norway’s North Atlantic Drilling (NADL) in return for shares in the firm, going ahead with an earlier agreed deal despite sanctions over Ukraine.

Rosneft and its head Igor Sechin, a long-standing ally of Russian President Vladimir Putin, have been sanctioned by the West over Moscow’s role in the Ukraine crisis, limiting the firm’s access to international financial markets.

Earlier this month, Norway decided to join the US and European Union in the punitive measures against Moscow.

Although the sanctions do not stop Rosneft from signing the agreement, the Kremlin-controlled firm may face difficulties in funding the deal as its access to the capital markets is limited by the punitive measures. But a source close to the deal said that the main component is the asset swap, rather than cash. A Rosneft spokesman declined to comment on the amount of cash the firm would need to fund the deal.

In a separate statement, NADL said that Rosneft will get an approximately 30% stake in the company by the issue of new shares at the previously agreed price of $9.25 per share, with the balance between the value of the rigs and the new shares being paid to NADL in cash.

The deal was first announced in May.

The Russian and Norwegian firms had already entered into a drilling agreement worth up to $4.25bn in July.

Rosneft has been expanding its business rapidly after the $55bn acquisition of Anglo-Russian oil firm TNK-BP last year. It has said it was aiming to develop its servicing business and dropped its co-operation with Russia’s biggest oilfield services company Eurasia Drilling.

Following the transaction, Seadrill, the world’s largest driller by market capitalisation, will continue to own more than 50% of NADL.

Seadrill currently owns 70% of the outstanding shares in the company, which has a market capitalisation of approximately $2.4bn. Rosneft will be entitled to two out of seven seats on NADL’s board once the deal is completed.

NADL said it would acquire Rosneft’s 150 land drilling rigs along with new five-year contracts with Rosneft for these units.

“The final parameters of the deal, including the amount of Rosneft’s cash contribution in NADL’s charter capital, will be defined upon receiving corporate and accountant’s approvals which is expected till the end of the 2014,” Rosneft said in a statement.