The price of oil in 2009 when the JDZ was drilled ranged from $36 to $79 yet they stilled drilled. Oil prices are affected by demand and economic conditions. Don't you think that these large oil companies look long term where the see the price stable or higher. After all there is a finite amount of oil that is gradually being consumed. Like land they ain't making any more of it. Of course alternate sources of energy could consumption in the future.
That's a 180° turn from your position years ago! The argument back when oil was screaming north was, "crude prices don't affect ERHE because they don't have reserves".