I've been keeping some XLE in my portfolio, and was startled to see how well it's performing. I decided therefore to look which oil companies are in the ETF, and have a look at their stock prices.
I was startled by the rapid growth rate of these, and was wondering if it might be time to sell, because it very much looks like a bubble to me. Especially with Exxon Mobil, the current growth is textbook parabolic.
[Exxon Mobil (XOM), Chevron (CVX) and Conoco Philips (COP)](https://imgur.com/a/WA3wiNM)
