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The first hint to crack the puzzle "Oil __ is turning crude oil into useful products" is:

It is a word which contains 8 letters

        

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The second hint to crack the puzzle "Oil __ is turning crude oil into useful products" is:

It starts with letter r

r        

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The third hint to crack the puzzle "Oil __ is turning crude oil into useful products" is:

It ends with letter g

r        g

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Looking for extra hints for the puzzle "Oil __ is turning crude oil into useful products"
r        g
Click on any empty tile to reveal a letter

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The answer for the puzzle "Oil __ is turning crude oil into useful products" is:
r e f i n i n g

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