Key Takeaways CNQ outperformed with a 15.1% gain over six months compared with OXY's 1.4% decline.CNQ has a lower debt-to-capital ratio of 29.91% versus OXY's 37.93%, signaling more conservative leverage.CNQ's ROE stands at 18.93% and dividend yield at 4.59%, both surpassing OXY's 12.35% ROE and 2.15% yield.The companies operating in the Zacks Oil-Energy sector offer a compelling long-term investment outlook, underpinned by extensive shale reserves, sophisticated extraction technologies and sustained global ...