Good point of view that you share with us friend @frederickbangs, is as you say, the price of oil has nothing to do with marketing, what I want to imply in this article is that due to the low prices of oil the private companies that supply equipment and services to the big national companies have to apply a good marketing philosophy in their sales, because due to low oil prices many of those services and equipment that were purchased in the past may no longer be available today, that is what I mean, we all know that the price of oil simply depends on the supply and demand that exists for this resource. I hope that I have clarified the point that was unfinished. Greetings and thank you for commenting on my post.