Steve S. Stotts

Founded in 1997, Aviva Investors Americas LLC is a registered investment advisor headquartered in Des Moines, Iowa. The firm was also previously known as Aviva Capital Management, Inc. Aviva Investors Americas is a subsidiary of Aviva USA Corp. and their ultimate parent is London-based Aviva Plc (LSE: AV). The firm manages assets for life insurance and annuity companies, re-insurance companies and other institutional clients.

Allstate Investments /Private Equity(Allstate Investments) is a private equity division of The Allstate Corporation. The firm is headquartered in Northbrook, Illinois.

Duff & Phelps Credit Rating Co. issues credit ratings on corporate bonds, preferred stocks, commercial paper, and CDs. The company is headquartered in Chicago, IL.

Société Générale SA (Broker) (Société Général CIB) is the brokerage division of Société Générale SA (EPA: GLE) in France. Headquartere din Paris, the firm was founded in 1864 and provides full spectrum of brokerage services specifically tailored for both retail and institutional investors. Société Général CIB also offers execution, clearing and prime services across the following asset classes: equities, FX, fixed income, commodities, and listed derivatives to almost 30 European brokers in more than 80 markets worldwide.

Scout Investments, Inc. (Scout) is a SEC-registered investment advisor headquartered in Kansas City, Missouri. The firm is a wholly-owned subsidiary of Carillon Tower Advisers, Inc., itself a subsidiary of Raymond James Financial, Inc. (NYSE: RJF). Founded in 2001, Scout provides discretionary investment management services to registered and unregistered investment companies, institutional accounts and individuals through separately managed accounts. They also provide model portfolios to financial intermediaries for use in unified managed accounts (UMA).

Homesteaders Life Co. (Investment Portfolio) (Homesteaders-IP) is the investment portfolio division of Homesteaders Life Co., an insurance company headquartered in West Des Moines, Iowa. The firm provides products and services to promote and support the funding of advance funeral planning and end-of-life expenses. Homesteaders-IP manages the investment portfolio of insurance clients.

Principal Global Investors LLC, dba Principal Asset Management (Principal AM), is a SEC-registered investment advisor headquartered in Des Moines, Iowa. The firm was founded in 1998 and is a wholly owned subsidiary of the Principal Global Investors Holding Co. (US) LLC and their ultimate parent is Principal Financial Group, Inc. (NASDAQ: PFG). Principal AM provides investment advisory services to institutional investors and individuals on a discretionary or non-discretionary basis.

MidAmerican Energy Co. engages in the provision of electricity services. It operates through the Regulated Electric and Regulated Natural Gas segments. The Regulated Electric segment includes regulated retail sales of electricity to residential, commercial, and industrial customers and from wholesale sales. Regulated Natural Gas segment transports gas owned by others through its distribution system. The company was founded in 1995 and is headquartered in Des Moines, IA.