Best Large-Cap Stocks: ConocoPhillips (COP) Source: JHVEPhoto / Shutterstock.com Even in the best of times, the oil and natural gas industry has always sparked controversy because of the negative environmental implications. During the worst of the Covid-19 pandemic, karma seemed to bite sector players like ConocoPhillips (NYSE:COP) in the hind quarters. We’re now in a paradigm of soaring inflation and geopolitical turmoil, cynically lifting COP stock as one of the best large-cap stocks to buy.