Stanford Propane Gas Forms Application For Services: Stanford LP Gas provides propane and related services for its residential and light commercial customers. Midland Form Gladwin Form 4% Sales tax Form: The state of Michigan allows propane delivered for residential use to be taxed at 4% sales tax instead of the current state tax rate of 6%. Midland Form Gladwin Form Electronic Funds Transfer Transfer funds directly from your bank account. Midland Form Gladwin Form Will Call Auto Fill: Set up your delivery options. Midland Form Gladwin Form