Petroleum and coal products manufacturers in Maryland
Maryland has 35 petroleum and coal products establishments employing 561 people (Census, 2023), and EPA's ECHO database lists 102 active petroleum and coal products facilities in the state. By employment it is Maryland's number 19 manufacturing industry, and Maryland ranks number 37 among states for it.
- NAICS subsector
- 324
- Petroleum and Coal Products Manufacturing
- Establishments
- 35
- Census 2023
- Employees
- 561
- Census 2023
- In EPA records
- 102
- With a page here
- 0
- Revised
- November 11, 2026
Where they cluster
Cities with the most active petroleum and coal products facilities in EPA records: Baltimore (22), Waldorf (5), Finksburg (4), Sparrows Point (4), Rockville (4).
Petroleum and coal products manufacturing across the US. Everything made in Maryland.