For quality, price, good customer service, shipping, etc. I like Sun Pure Botanicals
in NM. Great price on High Altitude French Lavender which is said to help with migraines.
: Since you're in Utah, MMS
is near Logan and carries good quality EOs but their selection is limited. They also carry a large inventory of other supplies for soap, lotions & potions. Also a good company to do business with.
I forgot to mention, I use Eden Botanicals
for information about EOs. Sun Pure Botanicals is a little lacking in that area.