Peter Reynolds Vig

RoundRock Capital Partners LP is an independent hedge fund manager headquartered in Dallas, Texas. It was founded by Peter R. Vig in 2001. The firm provides investment advice to a hedge fund that invests in publicly traded royalty trust, E&P MLPs, and other high yield upstream energy companies.

Tiger Global Management LLC (Tiger Global) is an independent, SEC-registered investment advisor and hedge fund manager headquartered in New York City. The firm was founded in 2001 by Charles Coleman III. Tiger Global provides discretionary investment advisory services to private funds that are pooled and/or co-investment vehicles intended for sophisticated investors and institutional investors.

Cumberland Partners Ltd. provides investment fund advice. The company is headquartered in Minneapolis, MN.

Oppenheimer Asset Management, Inc. (OAM) is a SEC-registered investment advisor headquartered in New York City. Founded in 1986, the firm is a subsidiary of E.A. Viner International Co., which is owned by Oppenheimer Holdings, Inc. (NYSE: OPY). OAM offers a variety of advisory services to individuals, foundations, pension and profit-sharing plans, trusts, charitable organizations, business or government entities, insurance companies and endowments.

Barrow, Hanley, Mewhinney & Strauss LLC, dba Barrow Hanley Global Investors (Barrow Hanley), is a SEC-registered investment advisor headquartered in Dallas, Texas. The firm was founded by Michael C. Mewhinney in 1979. They are a subsidiary of Perpetual US Holding Co., Inc., ultimately held by Perpetual Ltd. (ASX: PPT) in Australia. The firm provides US and global equity and fixed income management strategies to institutional investors, mutual funds, and other clients. Barrow Hanley is a signatory to the United Nations' Principles for Responsible Investment (UN PRI).