| Symbol | Name | Country | Exchange |
|---|---|---|---|
| CKX | CKX Lands, Inc. | US | AMEX |
| DNOW | NOW Inc. | US | NYSE |
| DWSN | Dawson Geophysical Company | US | NASDAQ |
| ERII | Energy Recovery, Inc. | US | NASDAQ |
| KEX | Kirby Corporation | US | NYSE |
| TTI | Tetra Technologies, Inc. | US | NYSE |
| CIPI | Correlate Infrastructure Partners Inc | US | OTC |