Jeffrey R. O'Brien
  1. Partner

A partner in Davis Polk’s Corporate Department and co-head of the firm's European practice, Mr. O’Brien advises companies, financial intermediaries and private equity sponsors on their most complex M&A, leveraged finance (including high-yield and loans) and other capital markets transactions. He has worked in our London, New York and Madrid offices and has been based in the London office since 2005.

Work Highlights

Recent M&A Transactions
  • Telia Company AB on the separate sales of its:
    • 100% interest in the Uzbek mobile operator Ucell to the State Committee of the Republic of Uzbekistan for Assistance to Privatized Enterprises and Development of Competition for $215 million on a debt-free basis

    • 60.4% interest in the Nepalese mobile operator Ncell to Axiata Group for $1.03 billion; and

    • 60% interest in the Tajik mobile operator Tcell to the Aga Khan Fund for Economic Development S.A.

  • Delonex Energy Limited in connection with its entry into a consortium with Vitol Investment Partnership II Ltd. and Africa Oil Corp to acquire a 50% ownership interest in Petrobras Oil and Gas B.V. (“POGBV”) for $1.407 billion

  • Reliance Industries Limited on its acquisition of wireless infrastructure assets from Reliance Communications

  • A private equity portfolio company on the sale of its operations in a Latin American jurisdiction
  • Tele2 AB on its $2.4 billion sale of its Russian operations to VTB Group
  • DONG Energy in connection with an equity capital injection from Goldman Sachs and other investors
  • Delonex Energy Limited in connection with a $600 million investment from an investment group led by an affiliate of Warburg Pincus LLC
  • EQT on its 12.8 billion Danish kroner ($2.2 billion) sale of Dako, a Danish healthcare equipment manufacturer, to Agilent Technologies
  • Novo Nordisk on strategic transactions including numerous licensing transactions and asset acquisitions in the United States
  • A leading global hedge fund on the sale of one of its European assets
  • Morgan Stanley:
    • in connection with its participation in a consortium acquiring HSBC Rail
    • on the $2.5 billion sale of its aircraft leasing business to Terra Firma
  • Royal Caribbean on its acquisition of Pullmantur, a Madrid-based cruise and tour operator, for €430 million in cash and the assumption of €270 million of net debt
  • Julius Baer on its CHF 5.6 billion acquisition of three private banks and an asset manager from a leading global bank
  • A U.S. private equity fund on its investment in a European communications company
  • Yahoo! on its investment in and exit from Sonera Zed
Recent High-Yield, Credit, Restructuring and Other Capital Markets Transactions
  • Netcompany on its DKK 7.75 billion ($1.2 billion) IPO and NASDAQ Copenhagen listing 
  • Reliance Industries on several Yankee bond offerings, a senior perpetual bond offering, a Formosa bond offering and a consent solicitation in respect of three series of Yankee bonds 
  • The lead arrangers and initial purchasers of a TLB, TLA and high-yield notes offering for Inovyn Finance plc
  • ODIGEO Group on three high-yield notes offerings, its IPO, a consent solicitation in respect of two series of high-yield notes and a cash tender offer for one series of high-yield notes
  • Technicolor on its comprehensive balance sheet restructuring, several term loan facilities and working capital facilities and repricings and other liability management transactions
  • Ocado Group on a consent solicitation in respect of high-yield notes
  • The initial purchasers on:
    • a high-yield notes offering by Worldpay Finance plc
    • four high-yield notes offerings by Abengoa
    • on the debut high-yield notes offering for Abengoa Yield
  • ISS A/S on several concurrent tender offers for, and partial redemptions of, high-yield notes
  • Codere on five high-yield notes offerings, entry into, and amendments and extensions to, its senior credit facilities and its IPO
  • Leading hedge fund and private equity fund jointly in connection with a $300 million recapitalization of a portfolio company with operations in Latin America by way of the issuance of convertible senior notes and subsequent consent solicitations and tender offers for such notes
  • A leading global hedge fund on its approximately $100 million credit facility
  • UBM on a Yankee bond offering and a rights issue
  • Cairn India on an equity private placement
  • The issuers and underwriters on numerous Spanish IPOs

Professional History

  • Partner, 2008-present
  • Associate, 2000-2008

Bar Admissions

  • State of New York
  • SRA (Solicitors Regulation Authority, London)


  • B.A., University of Virginia, 1996
    • with highest distinction
  • J.D., Georgetown University Law Center, 2000
    • magna cum laude
    • Order of the Coif
    • Member, Georgetown Law Journal


  • Spanish