Adding in some more details:

1. The Card is Saphhire.

2. The printed material I got with the Hilton card said 6X on supermarkets, drug stores, stand- alone gas stations, and home telephone, wireless, cable, satellite TV and internet service providers.

3. Spending.. we're talking (on a monthly basis) roughly $400 on gas, $200 on groceries (sucks that Costco does not count else that would be another $250), $50 on internet, $150 on cell phone and $100 on satellite tv.

Hope this clears things up. Thanks to everyone for responding.