“OILHOLE” is a valid word. — 10 points Scrabble

hellany place of pain and turmoil
holean opening into or through something
hilla local and well-defined elevation of the land
heil
helo
olio
oleoa spread made chiefly from vegetable oils and used as a substitute for butter
elhi

liea statement that deviates from or perverts the truth
oohexpress admiration and pleasure by uttering `ooh' or `aah'
oila slippery or viscous liquid or liquefiable substance not miscible with water
illan often persistent bodily disorder or disease; a cause for complaining
looa toilet in Britain
ole
leiflower arrangement consisting of a circular band of foliage or flowers for ornamental purposes
ellan extension at the end and at right angles to the main building
hoea tool with a flat blade attached at right angles to a long handle
oho
hiemove fast

hea very light colorless element that is one of the six inert gasses; the most difficult gas to liquefy; occurs in economically extractable amounts in certain natural gases (as those found in Texas and Kansas)
oha midwestern state in north central United States in the Great Lakes region
hian expression of greeting
eh
hoa trivalent metallic element of the rare earth group; occurs together with yttrium; forms highly magnetic compounds
elangular distance above the horizon (especially of a celestial object)
lia soft silver-white univalent element of the alkali metal group; the lightest metal known; occurs in several minerals
lo
oe

OILHOLE