By Selina Williams and Jenny Busche 

LONDON--Russian billionaire Mikhail Fridman's investment fund is expected to close a EUR5 billion ($5.6 billion) deal on Monday to acquire Dea, the oil and natural-gas arm of German utility RWE AG, people familiar with the matter said.

Completion of the transaction would propel a controversial figure into the heart of Europe's oil-and-gas sector at a time of growing concerns over Russian ownership of the region's energy infrastructure. Governments have been fretting about energy security amid tensions over the conflict in Ukraine, a transit point for Russian gas to European markets. Just last week, a plan for central European countries to produce their own nuclear fuel using Russian technology became another flash point for fears of Europe's reliance on Russia for energy imports.

The Dea deal was announced in March last year. But it hit a roadblock trying to get a "letter of comfort," or nonbinding consent, from the U.K. government. Britain was concerned that Mr. Fridman could be a future target of sanctions, which have targeted Russian businesses and government officials over hostilities in Ukraine. Such sanctions could result in the shutdown of production from Dea's U.K. natural gas fields at a time when the country's other domestic gas supplies are already declining.

While Mr. Fridman has business relationships throughout Russia and maintains contact with government officials, he isn't viewed as a member of Russian President Vladimir Putin's inner circle.

In January, Mr. Fridman's investment fund, LetterOne Group, said it would keep Dea's U.K. operations separate from other Dea activities for a number of years, in an effort to assure British officials. RWE and LetterOne agreed that RWE would buy back the U.K. business, if new sanctions affected the deal during the first year after the sale was completed.

A person familiar with the matter said the U.K. "letter of comfort" could be issued this weekend. However, RWE and LetterOne could go ahead with the deal without the letter, which is nonbinding, people familiar with the matter said.

A U.K. government spokeswoman on Friday said the government is examining the details of the deal closely.

The Dea deal would be the first big energy acquisition for Luxembourg-based investment fund LetterOne, set up in 2013 by Mr. Fridman and fellow Russian billionaire German Khan to invest part of their proceeds from the blockbuster $55 billion sale of the TNK-BP oil venture to OAO Rosneft, the Russian energy titan.

The Dea sale is also a crucial part of RWE's plan to reduce its EUR31 billion debt pile amid a broad restructuring of the company. Germany's largest power producer has seen its profits eroded by subsidized renewable energy and weak economic growth which have hurt electricity demand and prices.

Dea produces 100,000 barrels of oil equivalent a day from fields in Britain's North Sea, Egypt, Norway, Denmark and Germany, where it is the country's largest oil and gas producer. It also has licenses in Algeria, Libya, Turkmenistan and Guyana.

With its stable cash flows from production in low-risk developed countries, Dea could give Mr. Fridman a springboard for further investments in oil-and-gas assets in emerging countries in Africa and elsewhere. Such assets are now significantly cheaper than they were a year ago because of the recent sharp fall in oil prices.

Mr. Fridman, 50 years old, has been looking to expand his holdings in the oil, telecommunications, retail and banking businesses where he and Mr. Khan have made billions of dollars over the last two decades through their company, Alfa Group.

Alfa collected $13.9 billion from the sale of the TNK- BP stake. At the time, Mr. Putin publicly called on the tycoons who were selling out of TNK-BP to keep the proceeds in Russia.

TNK-BP was Alfa's most lucrative investment--the group spent around $1 billion in the late 1990s for its share of what became TNK-BP, a venture that paid them $9 billion in dividends over its 10-year life.

Alfa has been known for conflicts with former partners in Russia, including BP and Norway's Telenor AS. In 2011, Alfa, along with its other Russian partners in TNK-BP, took on Rosneft and won a court order to block a proposed $16 billion deal between Rosneft and BP.

LetterOne's energy unit L1 Energy has an advisory team comprising a who's who of the oil industry. It includes former BP Chief Executive John Browne and BG Group PLC Chairman Andrew Gould, who previously headed up oil services giant Schlumberger Ltd., and former Anadarko Petroleum Corp. CEO James Hackett

Write to Selina Williams at selina.williams@wsj.com and Jenny Busche at jenny.busche@wsj.com

Access Investor Kit for RWE AG

Visit http://www.companyspotlight.com/partner?cp_code=P479&isin=DE0007037129

Access Investor Kit for RWE AG

Visit http://www.companyspotlight.com/partner?cp_code=P479&isin=US74975E3036

Subscribe to WSJ: http://online.wsj.com?mod=djnwires

Rwe (TG:RWE)
Historical Stock Chart
From Mar 2024 to Apr 2024 Click Here for more Rwe Charts.
Rwe (TG:RWE)
Historical Stock Chart
From Apr 2023 to Apr 2024 Click Here for more Rwe Charts.