Ways to Contact Us

There are many ways to contact us. Feel free to use the method you find most convenient.


Call our Client Care Center and speak to a Client Care Associate at 1-888-222-3720. To better serve you, our Client Care phone hours are 7 am to 7 pm, Monday through Friday. We also offer 24/7 emergency service. If you have an emergency, please call for immediate assistance.

Online Email:

Fill out the consultation form on the right side of this page. You can also order fuel oil by clicking here.


Send fax correspondence to 1-301-934-0727.


Send written correspondence to: SMO Client Care Center 109 North Maple Avenue La Plata, MD 20646

In Person:

You may stop by one of our offices to drop off a payment Monday through Friday:

• Hein/SMO plant at 7400 Baltimore Annapolis Blvd, Glen Burnie (8am-4pm)

• SMO La Plata plant at 109 N. Maple Ave, La Plata (9am-4pm)

• Wills Group office at 6355 Crain Highway, La Plata (8am-4pm)

• SMO Prince Frederick office at 201 Bugeye Square, Prince Frederick (8am-4pm)

Contact Us

Please fill out this form and a client care representative will contact you.

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