After all, as the top oil official in arguably the world's most influential oil-producing country, he has enormous influence.

But for all his power, is he the most ingenious? That question arises from the release of two reports on the current state of the oil industry that look at whether or not OPEC's strategy of forcing US shale to cut back is succeeding.

The first, issued on May 12 by OPEC, says, in essence, that Saudi Arabia's effort to keep its own oil production at near-record highs is succeeding in wresting market share back from US producers of shale oil, also called "light, tight oil" (LTO). The second, issued a day later by the International Energy Agency (IEA), agrees, but only up to a point.