It’s hard for a $250-billion-plus business to change its stripes, butRoyal Dutch Shell’s(NYSE:RDS-A)(NYSE:RDS-B) has done a rather incredible job over the past few years transforming the company into one of the most compelling investments in the integrated oil and gas industry. Now that Shell has weathered the storm of low oil prices and is back to generating returns, management has plans both within and without the oil industry to preserve what it calls a “world-class investment case.” Here are several quotes from the company’s most recent earnings conference call that highlight some of the efforts Shell is taking to both grow the business and make the stock a better investment. FULL ARTICLE