Actually 7 - Eleven already has so CITGO wouldn't be there anymore. 7-Eleven wants to sell their own brand now.
Doesn't hurt Venezuela. In a world oil market, somebody (say, the chinese) are going to get in line to buy their oil.
The only people hurt are the american employees, who work for the american-affiliate of Citgo. Citgo is based in Houston, Texas by the way. Not Caracas Venezuela. Citgo is run, operated, and managed by Americans.