RAMACO RESOURCES, INC.: METC (Nasdaq Global Market)
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13F-HR YORKTOWN ENERGY PARTNERS IX, L.P.  11/14/17 (09/30/17) 
13F-HR YORKTOWN ENERGY PARTNERS IX, L.P.  08/14/17 (06/30/17) 
13F-HR YORKTOWN ENERGY PARTNERS IX, L.P.  05/15/17 (03/31/17) 
SC 13D RAMACO RESOURCES, INC.(YORKTOWN ENERGY PARTNERS IX, L.P.  02/21/17 
13F-HR YORKTOWN ENERGY PARTNERS IX, L.P.  02/14/17 (12/31/16) 
4 RAMACO RESOURCES, INC.(YORKTOWN ENERGY PARTNERS IX, L.P.  02/10/17 (02/08/17) 
3 RAMACO RESOURCES, INC.(YORKTOWN ENERGY PARTNERS IX, L.P.  02/10/17 (02/08/17) 
SC 13D EXTRACTION OIL & GAS, INC.(YORKTOWN ENERGY PARTNERS IX, L.P.  11/07/16 
4 EXTRACTION OIL & GAS, INC.(YORKTOWN ENERGY PARTNERS IX, L.P.  10/31/16 (10/26/16) 
3 EXTRACTION OIL & GAS, INC.(YORKTOWN ENERGY PARTNERS IX, L.P.  10/11/16 (10/11/16) 
3 CARBON NATURAL GAS CO(YORKTOWN ENERGY PARTNERS IX, L.P.  07/20/11 (06/29/11) 
4 CARBON NATURAL GAS CO(YORKTOWN ENERGY PARTNERS IX, L.P.  07/20/11 (07/18/11) 
D YORKTOWN ENERGY PARTNERS IX, L.P.  10/20/10 
 
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