Seven & i Holdings Co, the world’s largest convenience store operator, is betting $21 billion on the future of quick-stop shopping in the US, reviving a once-abandoned deal to make sure the target didn’t fall into the hands of a competitor. The global operator of the 7-Eleven franchise agreed to buy Marathon Petroleum Corp’s gas-station business, adding 3,900 Speedway outlets to clinch a dominant position of almost 14,000 stores in the US and Canada. Seven & i pushed ahead despite the uncertainty of the pandemic and investor pessimism. Its shares declined 4.8 per cent in Tokyo on Monday. Marathon rose 13 per cent before regular US trading hours.

)