Brant Hill DeMuth

Invesco Advisers, Inc. is a SEC-registered investment advisor headquartered in Atlanta, Georgia. They are a subsidiary of Invesco Group Services, Inc., ultimately held by Invesco Ltd. (NYSE: IVZ). The firm was founded in 1986 and previously known as Invesco Institutional NA, Inc. until April 2010 when Invesco Ltd. consolidated the businesses of their US investment advisors (Invesco AIM Advisors, Inc., Invesco AIM Capital Management, Inc., Invesco AIM Private Asset Management, Inc. and Invesco Global Asset Management NA, Inc.) under the name Invesco Advisers, Inc. They provide discretionary and non-discretionary investment advisory services to individuals, institutional and high net-worth clients through separate accounts, wrap fee programs and US registered investment companies and other Commingled Funds.

Founded in 1993, Mazama Capital Management, Inc. is an independent investment advisor firm located in Portland, Oregon with an additional office in New York City

The Colorado Public Employees' Retirement Association (Colorado PERA) is the State-owned pension fund manager headquartered in Denver, Colorado. The firm was founded by state law in 1931. Colorado PERA provides retirement and other benefits to current and former employees of the Colorado state government, public school teachers in the state, many university and college employees, judges, many employees of cities and towns, State Troopers, and the employees of many other public entities. Colorado PERA is a substitute for Social Security for most of these public employees.

Part of Invesco Ltd., AIM Distributors, Inc. is an American company.

Invesco Management Group, Inc. provides investment advice and services. The company is headquartered in Dallas, TX.

Bonanza Creek Energy, Inc. engages in the extraction of oil and associated liquids-rich natural gas. It focuses on the Niobrara and Codell formations in the Denver-Julesburg Basin. The company was founded on December 2, 2010 and is headquartered in Denver, CO.

SRC Energy, Inc. engages in the acquisition, development and production of oil and natural gas. It focuses in the operation of Wattenberg Field in the Denver-Julesburg Basin. The company was founded on May 11, 2005 and is headquartered in Denver, CO.

DJ Resources LLC explores and develops several conventional and unconventional oil and gas. The company is headquartered in Denver, CO.