Petroleum and Coal Products Manufacturing in Maryland

NAICS 324 · MD

The Petroleum and Coal Products Manufacturing industry in Maryland has 56 establishments, according to the Bureau of Labor Statistics. This register lists 85 facilities in Maryland. TAMKO Building Products LLC - Frederick, located in Frederick, employed 105 people in 2025.

SUMMARIZED FROM THE FEDERAL FIGURES ON THIS PAGE

Map, cities and product lines

Biggest counties

Baltimore12 Baltimore8 Prince George's8 Anne Arundel6 Montgomery6 Carroll5 Charles5 Frederick5

Biggest cities

Baltimore (10)Waldorf (4)Hagerstown (3)Silver Spring (3)Aberdeen (3)Frederick (3)Finksburg (3)Clinton (3)Curtis Bay (2)Eden (2)

Plants in Maryland1 FACILITIES

Listing 1 of 3: the facilities with a website, a size band or two sources on record. The rest are in site search.

Facility	City	Employees	Status
Prince Georges Contractors	Clinton	—	LIKELY ACTIVE

Search all 85 facilities

All petroleum and coal products manufacturing nationwide · All manufacturing in Maryland