If you look at the 5 year charts on many of the O&G stocks there's definitely a lot of room for recovery for some of them, but some are way more risky on if they'll recover.
I am in no way recommending anyone buy these, but the potential is there.
PGAS .08 today, had been over $6 in the last 5 years, over $2 in the last 2 years.
AXAS $3.10 today, been north of $50 in the last 5 years, over $25 in the last 2 years, but they're a little sketchy on if they can refinance some of their debt, but with crude prices continuing to rise it may work out.
Even BORR could end up 3-5x today's current price.
Full disclosure, each one of the stocks I named I do own shares in each, but my risk tolerance is pretty high.