When weighing oil stocks to buy and watch, consider which ones are diversified and which are focused more on shale or particular regions like the Permian Basin. Crude oil prices have a big impact, especially on pure-play shale producers. After series of takeover deals that reshuffling some shale oil stocks, Pioneer Natural Resources (PXD) now reigns as the top producer in the Permian Basin and is boosting returns to shareholders. Investors should do additional research before making any purchases. While oil prices have risen recently, they are still under pressure amid another round of lockdowns in Europe and growing ... (full story)