Actually, I got news of this offer on my monthly Gold Card statement. As long as you register your AMEX card, you'll get the 50 points per transaction up to 500 points max. The points are supposed to post within 4-6 weeks. When I signed up for it, there wasn't any special AMEX insignia on the Exxon/Mobil Speedpass web page. I'm taking it for granted that I'll get the points within 4-6 weeks. We'll see.