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 employs 105 people, according to data from 2025.
SUMMARIZED FROM THE FEDERAL FIGURES ON THIS PAGE
Map, cities and product lines
Plants in Maryland3 FACILITIES
Listing 3 of 6: the facilities with a website, a size band or two sources on record. The rest are in site search.
| Facility | City | Employees | Status |
|---|---|---|---|
| Reliable Contracting Company, INC. - Gambrills | Millersville | — | LIKELY ACTIVE |
| Reliable Contracting Company, INC. - Glen Burnie | Glen Burnie | — | LIKELY ACTIVE |
| Aggregate Industries - Severn Asphalt | Severn | — | UNVERIFIED |
All petroleum and coal products manufacturing nationwide · All manufacturing in Maryland