___ gas, non-renewable energy source which is a combination of different compounds, mainly methane - Crossword Explorer Clue

Today's crossword puzzle clue is a quick one: ___ gas, non-renewable energy source which is a combination of different compounds, mainly methane. We will try to find the right answer to this particular crossword explorer clue. Crossword Explorer is the new wonderful word game developed by PlaySimple Games, known by his best puzzle word games on the android and apple store. Each pack has more than 10 levels. Some of the packs are: United States, Japan, Russia, Australia, India, Egypt, Greece, Brazil. We are sharing all the answers for this game, so here are the answers for "___ gas, non-renewable energy source which is a combination of different compounds, mainly methane" clue. Last but not least, if you are facing any difficulties in solving any of the Crossword Explorer levels, do not hesitate to leave a comment below. One of our representatives will be more than happy to assist you with the solution of the level you are stuck.