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 86 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
| Facility | City | Employees | Status |
|---|---|---|---|
| Gray & Son, INC. - Finksburg | Finksburg | — | LIKELY ACTIVE |
| C.j. Miller, LLC - Finksburg | Finksburg | 20–99 | LIKELY ACTIVE |
| S& G Concrete | Finksburg | — | UNVERIFIED |
All petroleum and coal products manufacturing nationwide · All manufacturing in Maryland