From our Mid-Atlantic energy analyst friend, today's observation: “The tussle for supremacy between OPEC and U.S. shale drillers is killing off older oil fields at the fastest pace in almost a quarter century. That could hurt the industry once the current glut has faded.” We blend that into include other forces that are trending to curtail future crude oil production: If one takes the cumulative increased decline of older assets together with the drying up of new annual new discovery additions (a subject for future note), plus the higher decline rates of shale wells, [...]