Amazon has the 1-Gallon (128 Fl Oz) Amazon Brand Happy Belly Peanut Oil for $14.49 - 5% off with Subscribe & Save (can cancel at any time) = $13.77 with free shipping on $25+ or with Prime. Has excellent (4.7 out of 5-star) Amazon customer reviews.

• If buying in bulk, this qualifies for 20% off $40 for Prime members. 3 x bottles for $34 after 20%, S&S -> $11 per gallon.