Exhibit 21.1
Schedule of Significant Subsidiaries
| Name of Organization |
State/Jurisdiction of Incorporation | |
| Heckmann Water Resources Corporation | Texas | |
| Heckmann Water Resources (CVR), Inc. | Texas | |
| Heckmann Environmental Services, Inc. | Delaware | |
| Thermo Fluids Inc. | Delaware | |
| Badlands Power Fuels, LLC | Delaware | |
| Badlands Power Fuels, LLC | North Dakota | |
| Landtech Enterprises, LLC | North Dakota | |
| Badlands Leasing, LLC | North Dakota | |
| Ideal Oilfield Disposal, LLC | North Dakota |
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