Helping Hand Contracting LLC

In business since 1998, Conroy Excavating is a contractor providing snow removal and truck hauling services. Based in Tabernash, Colo., the company specializes in all foundation excavation, such as walk out basements, monolithic slab, crawl spaces and sub floor basements, to name a few. Additionally, it provides pipeline as well as sewer installation, inspection and backfill. Conroy Excavating is capable of designing and installation of septic system and leach fields. The company also renders an array of services pertaining to snowplowing and removal.

Founded in 1954, M. A. Mortenson Company is a family-owned construction company that specializes in a range of services including planning, program management, preconstruction and general contracting. It also has expertise in the areas of construction management, design-build and development services. The company organizes safety training sessions, as well as offers substance abuse prevention programs. M. A. Mortenson Company serves the aviation, civil, telecommunications and health care industries. In addition, it has undertaken projects of educational institutes, wastewater lands, public assemblies and justice centers. With one of its locations in Denver, the company maintains offices in Milwaukee, Minneapolis, Phoenix and Seattle. M. A. Mortenson Company has operations in Canada and China.

MarkWest Energy Partners is engaged in the gathering, transmission and processing of natural gas and the transportation, fractionation and storage of natural gas liquids. The company processes gas from the Appalachian Basin and Michigan. Through several acquisitions completed during 2003 and 2004, the company has also expanded the geographic coverage of its natural gas gathering, processing and transmission to the southwest United States. In addition, one of its acquisitions in Michigan has allowed the company to enter into the crude oil transportation business. MarkWest Energy Partners is a publicly owned company. Its shares are listed on the American Stock Exchange under the ticker symbol MWE. The company is headquartered in Englewood, Colo.