$3 for 3 fill-ups offer:

You must fully enroll in Exxon Mobil Rewards+ between February 1, 2019 and April 30, 2019 in order to be eligible: after completing each fill-up of a minimum 8-gallons using your fully enrolled rewards card between your initial enrollment date and May 31, 2019 (midnight CST), you will earn 100 bonus points, up to 300 total bonus points for 3 fill-ups, in addition to any other point offers. Bonus valid only once per Exxon Mobil Rewards+ member regardless of total number of purchases during the eligibility period.

$6 for 3 fill-ups offer:

You must fully enroll in Exxon Mobil Rewards+ between February 1, 2019 and April 30, 2019 in order to be eligible: upon completing 3 fill-ups of a minimum 8-gallons each of Synergy Supreme+ during the 30 day period following full enrollment, you will earn 300 bonus points. This is incremental to the 100 bonus points, up to 300 total bonus points, you will receive for each of the 3 fill-ups as part of the 300 total bonus points for 3 fill-ups of any fuel grade offer that is also in market during this time frame. This offer does not preclude you from using other offers. Bonus valid only once per Exxon Mobil Rewards+ member regardless of total number of purchases during the eligibility period.