Name

Jurisdiction of Formation

AESI Holdings Inc.

Delaware

Atlas Sand Operating, LLC

Delaware

Atlas Sand Company, LLC (d/b/a Atlas Energy Solutions)

Delaware

Atlas Sand Construction, LLC

Texas

Fountainhead Logistics, LLC

Delaware

Fountainhead Transportation Services, LLC

Delaware

Fountainhead Equipment Leasing, LLC

Delaware

OLC Kermit, LLC

Texas

OLC Monahans, LLC

Texas

Atlas Sand Employee Company, LLC

Texas

Hi-Crush Operating, LLC

Delaware

Hi-Crush LMS LLC

Delaware

Hi-Crush Investments LLC

Delaware

OnCore Processing LLC

Delaware

Hi-Crush Permian Sand LLC

Delaware

Hi-Crush PODS LLC

Delaware

NexStage LLC

Texas

FB Logistics LLC

Texas

BulkTracer Holdings LLC

Texas

Pronghorn Logistics Holdings, LLC

Colorado

PropDispatch LLC

Texas

Pronghorn Logistics, LLC

Colorado

Propflow, LLC

Delaware

PropFlow Employee Co., LLC

Texas

PropFlow International, LLC

Arkansas

PropFlow Operating, LLC

Arkansas

Wyatt Holdings, LLC

Delaware

Wyatt Operating, LLC

Delaware

Moser Acquisition Inc.

Delaware

Moser Engine Service Inc. (d/b/a Atlas Energy Solutions)

Delaware

Galt Power Solutions LLC

Texas