I have been looking for wallpaper border for an oil and gas industry office, preferably something with oil wells, or an oil & gas theme, anyone know where I might find border along these lines?

Since your theme is a bit odd, you may need to try a custom maker of borders, such as:

Create A Border

That's true, above! Just another possible option that I can think of right now would be that maybe there are stencils available that you could use, that are in the shapes that might go with the kind of theme that you are wanting. But, those also may be hard to find. So, maybe you could make your own stencils if using stencils is an option that you might want to try. On the following search are some sites that might enable you to do that. Create a Stencil - Google Search