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Andrews Kurth Kenyon LLP

600 TRAVIS, SUITE 4200, HOUSTON, TX 77002, USA
Work +1 713 220 4200
Fax +1 713 220 4285
Austin, Beijing, Dallas, Dubai, Durham, Houston and 6 more

Michael O'Leary

Work +1.713.220.4360
Andrews Kurth Kenyon LLP

Work Department





Mike is a member of the Policy Committee and co-chair of the Corporate/Securities practice.

Mike has an extensive corporate securities and mergers and acquisitions practice with particular emphasis on representation of issuers and underwriters in public and private offerings of equity and debt securities; representation of buyers, sellers and special committees in mergers and acquisitions (domestic and foreign) and of private equity firms' investments in energy and energy infrastructure; redemptions and exchanges of corporate debt; negotiating complex partnerships and joint ventures; structuring spin-offs and "going private" transactions; and corporate governance. The clients Mike represents include some of the largest and best-known names in the energy business. He has a significant reputation in master limited partnerships, energy and oilfield services, energy infrastructure, private equity investments, pipeline company transactions, royalty trusts and forest products companies.


  • Houston Bar Association
  • State Bar of Texas


  • JD, 1980, with honors, University of Houston Law Center
  • BS, 1977, cum laude, Finance, The University of Alabama

United States: Finance

Capital markets: debt offerings

Within: Capital markets: debt offerings

The ‘highly dependable, knowledgeable and responsive’ team at Andrews Kurth Kenyon LLP strikes the right note with its ‘pragmatic and problem-solving approach’. The firm regularly ranks among the most prolific capital markets practices in Texas, mainly for energy issuers, but it is also increasingly active for underwriters and recent experience also spans the financial services and technology industries. Houston-based department co-head David Buck is ‘excellent’ and acted for Enterprise Products Operating in its $1.2bn issuance of senior unsecured notes. In another highlight, Washington DC-based William Cooper and Houston’s Stephanie Beauvais advised the underwriters on Magellan Midstream Partners’ $650m notes issuance. Houston-based Michael O’Leary jointly heads the group alongside Buck.

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Capital markets: equity offerings

Within: Capital markets: equity offerings

Dedicated and highly responsive’, the team at Andrews Kurth Kenyon LLP contains ‘excellent lawyers’. Corporate and securities co-chair Michael O’Leary teamed up with Jon Daly and Cindy Lin to act for LongPoint Minerals in a $525m private placement. O’Leary also worked with Courtney Cochran Butler and Jordan Hirsch to advise Credit Suisse Securities, BMO Capital Markets and Wells Fargo Securities as the underwriters on a follow-on offering by Laredo Petroleum. Co-chair David Buck and Melinda Brunger assisted Independence Contract Drilling with its $46.3m follow-on offering. All named partners operate out of Houston, but the group is also well represented in Austin, Dallas, New York and Washington DC.

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United States: Industry focus

Energy transactions: oil and gas

Within: Energy transactions: oil and gas

Andrews Kurth Kenyon LLP’s practice is particularly active in M&A and commercial contracts, from upstream to downstream. George Vlahakos advised G2X Energy on its acquisition of a 50% stake in Natgasoline, which is set to be the US’ largest methanol production facility. Other clients include Anadarko Petroleum and FourPoint Energy. Michael O’Leary and Timothy Unger head the department. All named attorneys are based in Houston.

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United States: M&A/corporate and commercial

M&A: middle-market (sub-$500m)

Within: M&A: middle-market (sub-$500m)

Andrews Kurth Kenyon LLP’s practice grew through the recruitment of Houston-based oil and gas specialists Christopher Richardson and Charlie Ofner from Mubadala Petroleum and Oasis Petroleum respectively. The team excels in energy sector deals; it acted for LRR Energy in its acquisition of a subsidiary of Vanguard Natural Resources and advised Energy Transfer Partners on its acquisition of certain interests in PennTex Midstream Partners. It also advises in other sectors, such as assisting specialty pharmacy Avita Drugs with its sale to Tailwind Capital portfolio company Long’s Drugs and advising cloud-based software company Gravitant on its sale to IBM. Recent large deal highlights include advising Archer Well Company on its disposition of outstanding equity interests in certain North American subsidiaries; representing LDR Holding Corporation in its approximately $1.1bn sale to Zimmer Biomet Holdings; and advising Chelsea Petroleum Products Holdings, an affiliate of ArcLight Capital, on its purchase of Gulf Oil Limited Partnership and a related business. Houston-based David Buck and Michael O’Leary head the department. Buck has particular experience with energy, maritime transportation, restaurant, aviation and death care companies; and O’Leary’s representative experience includes acting as counsel to a publicly traded master limited partnership (MLP) in its acquisition of natural gas liquid pipelines and related assets. Other recommended Houston advisers are John Clutterbuck, Jon Daly, Melinda Brunger, Hal Haltom Jr, Henry Havre and firm managing partner Robert Jewell. In Washington DC, Bill Cooper is a key name, as are Dallas-based Mark Solomon, Peter Bogdanow, David Washburn and Victor Zanetti and Austin-based Alan Bickerstaff. Since publication, Mark Solomon, Peter Bogdanow, David Washburn and Victor Zanetti have joined Katten Muchin Rosenman LLP’s new Dallas office.

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