FUELLING is a playable word

fuel Scrabble® Dictionary

verb
fueled, fueling, fuels or fuelled, fuelling, fuels
to provide with fuel (material used to produce energy)
89 Playable Words can be made from "FUELLING"
   2-Letter Words (11 found)
   3-Letter Words (32 found)
   5-Letter Words (11 found)
   6-Letter Words (4 found)
   7-Letter Words (3 found)
   8-Letter Words (1 found)