[TheRealVille]

[quote=TheRealThing]I have some experience in the oil refining industry. We were constantly upgrading, changing pumps, reworking vessels, running new pipe lines, changing out refractories, improving the process is a 24/7 proposition. Really now? I also work in the construction/ maintenance part of oil refineries. Old refinery units are dying all the time. I have worked in the refinery at Catlettsburg at different times for the last 21 years, and have helped demo several old units that have ran their course. That plant was just built in the late 20's. Yes, you can update equipment for many years, but even at refineries, the units lifespan runs at around 40-50 years.