I used to own OXY for myself and a few clients who like to have some individual stock exposure. My thesis was in part based on the ownership of Berkshire Hathaway and Warren Buffet's strong opinions on the management skills of CEO Vicki Hollub. But, I do my own research and like when management is clear on strategic direction.
In the end, I didn't like that management said they had no need to do more acquisitions and several weeks later they did the opposite. On top of that, I'm unclear on the strategy on carbon capture and it's lack of profits. For my money and the money of those I represent, I saw a glimpse of what Peter Lynch might call "diwrosification." I'm no expert on everything relating to gas and oil - I'm an expert on people who do what they say they will do. When they don't, it's time to consider moving on.
Most people are afraid of doing something they think is against the grain or selling a position that famous billionaire owns. But let me tell you - you never really know why a legendary investor owns something - or really, if they own it that day. You get a 13F from the SEC that tells you what a big manager owned at the last day of the quarter. You don't know if they have side deals, own derivatives, own debt, have other reasons for owning beyond just the stock going up. No great investor is going to call you to tell you when they buy or sell or why.
The point of keeping an eye on the GOATs is simply for idea generation. But I find in general that GOATs are just that - people who made a lot of good decisions in the past, when they were younger, more aggressive, and now have a lot of money they don't want to lose.