Clearly it's a biased source. However, that said, I don't have a problem with it at all. Unlike you, I don't assume everything that happens in the entire world, is all a "BigOil" conspiracy. Further, I don't have a problem with every member of a family, that hasn't done anything wrong.
Perhaps your family tree includes some KKK members, or maybe some Nazis, or perhaps some Black Panther or Weatherman Underground, or who knows what.... that doesn't apply to you. Nor does Osama who has been cut off from his family for ages, mean that every other Bin Ladin on the planet is also a terrorist.
Bush's connection to international oil companies, including the Bin Ladins, is well documented and well researched. There's nothing there. If there was, the democrats would have been all over it, but they didn't. Because it wasn't important or worth noting.
Only if you are a conspiracy nut, where all evil in the world, is someone connected to an oil rig, is this important. The rest of us, need something more than business ties to legit businessmen in other countries, to be concerned about.