| SIC | Description |
|---|---|
| 291 | Petroleum Refining | 2911 | Petroleum refining | 295 | Asphalt Paving and Roofing Materials | 2951 | Asphalt paving mixtures and blocks | 2952 | Asphalt felts and coatings | 299 | Misc. Petroleum and Coal Products | 2992 | Lubricating oils and greases | 2999 | Petroleum and coal products, nec |