| Symbol | Name | Country | Exchange |
|---|---|---|---|
| ENSV | Enservco Corporation | US | AMEX |
| FET | Forum Energy Technologies, Inc. | US | NYSE |
| NR | Newpark Resources, Inc. | US | NYSE |
| OIS | Oil States International, Inc. | US | NYSE |
| SOI | Solaris Oilfield Infrastructure, Inc. | US | NYSE |
| AMIH | American Intl Hldgs Corp | US | OTC |
| NSLPQ | New Source Energy Partners L.P. | US | OTC |
| SECYF | Secure Energy Svcs | US | OTC |