Paul Chambers

A subsidiary of Lehman Brothers Holdings, Inc., Lehman Brothers, Inc. is a broker/dealer headquartered in New York City. They provide global equity and fixed research. The equity research department covers more than 100 sectors. They use a fundamental, quantitative, strategic and tactical research approach. In addition to these Lehman has also developed special products, such as 10 uncommon values and 10 uncommon eurovalues.

UBS O'Connor LLC is a registered investment advisor and hedge fund manager headquartered in Chicago, Illinois. The firm was founded in 2000 and is a subsidiary of UBS Asset Management (Americas) Inc., ultimately owned by UBS Group AG (SIX, NYSE: UBS) in Switzerland. UBS O'Connor primarily provides discretionary and non-discretionary investment advisory services to various types of pooled investment vehicles, (which may or may not be exempt from registration), pension or profit-sharing plans, and institutional separately managed accounts.

Citadel Advisors LLC is a SEC-registered investment advisor and hedge fund manager headquartered in Miami, Illinois. The firm was founded in 1990 by Kenneth Griffin and is a wholly-owned by Citadel Advisors Holdings LP, ultimately held by GFH HFEVA LLC. Citadel Advisors manages private investment funds that are offered exclusively to sophisticated investors.

Founded in 1946, Howard Weil, Inc. is a broker/dealer located in New Orleans, Louisiana with an additional office in Houston, Texas. On November 1, 2012, Howard Weil became part of Scotia Capital (USA), Inc., a US registered broker-dealer and a member of FINRA and the NYSE. Scotia Capital (USA), Inc. is owned by the Bank of Nova Scotia (NYSE: BNA), aka Scotiabank. The firm is an energy investment boutique that provides equity research, institutional sales and trading, and investment banking services. They cover companies in the following energy sectors: major integrated oil, exploration and production, oilfield service, gas and power, independent refiners and coal producers. Howard Weil's sales force deals only with energy securities and covers institutional accounts in the US and internationally. Their trading expertise spans all sectors of the energy industry and includes small-, mid- and large-cap companies.

Barclays Capital, Inc. is a registered broker/dealer headquartered in New York City. The firm was founded in 1997 and is a subsidiary of Barclays Group US, Inc., ultimately owned by Barclays plc (LON: BARC) in Great Britain. Barclays Capital provides large corporate, government and institutional clients a full spectrum of prime brokerage services which includes equities and fixed income financing, OTC Clearing, Futures and Foreign Exchange Prime Brokerage and access to industry insights and analytics from their Strategic Consulting team.

Founded in 2007, TPH Asset Management LLC (TPHAM) is a hedge fund manager and registered investment advisor located in Houston, Texas. The firm is wholly-owned by Perella Weinberg Partners Group LP. TPHAM is an affiliate of Tudor, Pickering, Holt & Co., an investment and merchant bank that focuses exclusively on energy with its headquarters in Houston, Texas, and offices in Denver, New York and London. TPHAM provides energy-focused investment strategies across the energy sector to a diverse set of institutional and individual clients.

Nomura Securities International, Inc. (Invt Mgmt) (NSI-IM) is the investment management division of Nomura Securities International, Inc., a broker-dealer headquartered in New York City. The firm is a subsidiary of Nomura Holding America, Inc., which is owned by Nomura Holdings, Inc. (TYO: 8604) in Japan. NSI-IM provides advisory research services for a fee to institutional clients, such as banking or thrift institutions, pension and profit-sharing plans, corporations or other businesses, state government entities, investment companies, other investment advisers, corporations, or other businesses.