-Name and address. Make sure it is accurate and matches what the IRS has on file.
-P.O. Box. If your post office does not deliver mail to
your street address, show your P.O. box number instead. If you have a
foreign address, enter the information in the following order: city,
state or province, country, then the postal code.
-Taxpayer Identification Number. Enter your Employer Identification
Number. If you are not required to have an EIN, enter your social
security number. An incorrect or missing number will delay processing of
your claim.

Form 8849 is used to claim a refund of excise taxes. Here are some quick
facts, brought to by the IRS.
-You can e-file Form 8849 with most IRS authorized e-file providers
-Use Schedules 1, 2, 3, 5, and 8 to claim certain fuel related refunds such
as nontaxable uses (or sales) of fuels.
-You are not required to claim a refund; however, if you do so you must
provide all the information requested on Form 8849 in order for your
refund to be processed properly.
-If a claim was not made for any gallons during the income tax year on Form
8849, an annual claim may be made. Generally, an annual claim is made
on Form 4136.