I have not had much luck with buying call options, but I usually bought slightly out of money. So, I stopped, and now just buy the stocks themselves.
I have held RIG in the past, and had made some money. When the disaster struck, I quickly sold off whatever I had left.
I thought it was a bargain at the current price, and recently bought some at around $45. Low P/E, and some dividend. I am OK with it, and will hold for a few years, as I usually do.
PS. I usually do better selling out-of-money covered call options. I usually end up making more money than selling the stock outright, but less than selling the stock at the strike time. Oh well, that's how I do it when I find it hard to sell a rising stock, and have to use the call options to force myself to sell.