We like the check mark, it communicates because we are speaking to investors. This check mark indicates that yes this is a valid place to put funds. The circle does not communicate, but a flame -- not a candle -- would communicate better.
The left side of the check is a little dainty. A little shorter perhaps will help emphasize the check mark.
And since we are doing oil drilling -- the lines in the check mark work well -- we would like to see alternate color scheme that is darker to lighter -- gradually going from darker to lighter. as a gradient. You could take the letter I or surface letter that goes down through the word energy etc. This however is a style point for you to work out.
We like the deep blues and greens --- or oranges and greens, blues etc. But the colors you have are not working for us. We are dealing with more earthy elements yet we want to be a little modern.
You are on the right track. Lets see what you can do from here!!
Thank You.