Consider first of all, Manti, that Hemi is drilling 'here and now', while ERHE only 'plans' to, next winter. Also, consider how long it takes for Hemi to drill a well, as compared to ERHE's deep sea drilling. Those deep sea wells aren't the 'poke a hole in the ground' type wells that Hemi drills.
Deep sea wells have MUCH more risk involved! My advice would be to invest in ERHE after their well has been drilled, and waiting for results. Otherwise, your investment dollars are are certainly stagnant (and dimishing?) until then.
GLTY either way.