As someone that has no stakes in the oil industry, I would describe fracking as deeply anti-social.
NK possessing nukes is the reason there hasn't been a war in the region for so long. Which gives a "good" model for Iran to follow. I'm not happy that NK has nukes, or that Iran is trying to get them, but you have to admit that while the US exists as it is, they are the only way for a nation to protect itself from constant wars and invasions. I would be willing to bet that Iran getting nukes would paradoxically make the Middle East much safer: the US and their allies would be forced to leave it alone, which in turn would shrink the anti-US sentiment in the long term, which would cut into the ranks of terrorist cells, etc.
It makes an invasion of Iran less likely, but it also probably means more conflict, not less.
Acquiring nukes rebalances the power between Iran and the US and its neighbors. Roughly equal pairs of states fight more than lopsided ones, historically. The probability for a win on either side is higher when on equal footing.
Nukes as a deterrent caps escalation. This emboldens the holder of the nukes in lower levels of conflict. See Russia with Ukraine (knowing NATO wouldn’t respond), Kargil after Pakistan got nukes, and NK sinking the Cheonan.
Iran getting a bomb probably triggers Saudi Arabia to follow suite, possibly Turkey and Egypt too. Many of the conflicts in the area aren’t (solely) defined by US presence. The Iran–Saudi, Sunni–Shia, and Israel–Iran rivalries to name a few.
It’s possible the dynamics shake out differently, but color me skeptical.
I'm no expert in geopolitics, but to me the relation between a nuclearized Iran and Saudi Arabia could become like that of North and South Koreas: tense but ultimately passive.
That relationship is (was?) a proxy for two mature superpowers. The dynamic between the mid-tier powers in the Middle East is not that similar, IMO. With the US realigning, I expect to see more activity in that conflict.
I can’t know the future, but if the model I’m proposing is correct we’ll see some NK/SK shake-ups soon. That won’t bode well for Iran.