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
Plants in Maryland9 FACILITIES
Listing 9 of 10: the facilities with a website, a size band or two sources on record. The rest are in site search.
| Facility | City | Employees | Status |
|---|---|---|---|
| The United Oil Company, INC. | Baltimore | 20–99 | ACTIVE |
| US Lubricants - Baltimore Plant | Baltimore | 1–19 | LIKELY ACTIVE |
| Seaboard Asphalt Products Company | Baltimore | 1–19 | LIKELY ACTIVE |
| Pike Baltimore Terminals LLC - Baltimore Terminal | Baltimore | — | LIKELY ACTIVE |
| Flanigan, P. - N. Monroe Street | Baltimore | — | LIKELY ACTIVE |
| Bitumar USA INC. | Baltimore | — | LIKELY ACTIVE |
| Key Recycling, LLC | Baltimore | — | LIKELY ACTIVE |
| P. Flanigan and Sons, INC - Annapolis Rd | Baltimore | — | UNVERIFIED |
| Baltimore | Baltimore | 100–499 | LIKELY ACTIVE |
All petroleum and coal products manufacturing nationwide · All manufacturing in Maryland