Operational for over 50 years, Crawford - Vogel & Wenzel Oil Company Inc. has been one of the leading oil companies in Southern New Hampshire. Based in Manchester, N.H., it offers commercial and residential customers a wide range of services, such as automatic metered oil delivery, cash discounts, budget plans, senior citizens discounts and pre-purchase plans. In addition, the firm provides annual servicing, service contracts and complete heating/air conditioning system installations with full time burner services.