| Imperial Petroleum Recovery Corp.: Provides products and services to oil processors including microwave-based oil separation equipment. (OTC: IREC.PK) |
| IOR Energy: An independent Australian energy company engaged in oil refining, oil and gas exploration, process engineering, environmental services amd power generation. |
| Oman Lng: Produces liquefied natural gas. |
| Rentech Inc.: Gas to liquid and natural gas conversion technology for carbon-bearing materials, iron-based catalysts, oil, and coal bed methane, based in Denver, Colorado. Publicly traded company. |
| SK Corporation NIR Plus: Quality analysis, control and real time process optimization by technology based on near-infrared spectroscopy combined with oil refinery and petrochemical process applications. |
| Syntroleum Corporation: Providing process technology for the conversion of natural gas into synthetic liquid hydrocarbons, which can be refined into ultra-clean fuels and specialty products. |
| Taylor NGL Limited Partnership: Investing in facilities associated with natural gas and NGL processing in Western Canada. |
| Thermal Conversion Corp: High-temperature plasma processing systems for converting low-value hydrocarbons and organic wastes to valuable chemical feedstocks and other useful byproducts. |
Classical
