Ranking the Best Firms to Break Into Commodities Trading (Gas & Power) in Houston

I'm a senior graduating soon and looking to build a long term career in energy trading, specifically US nat gas and power, ideally in Houston. I understand that becoming a trader straight out of college is unlikely, so I'm looking for the best place to build a strong foundation and eventually transition into a trading seat.

A few questions:

1. Which graduate programs or entry level roles provide the strongest preparation and most realistic path to a trading seat?
2. Is it better to start in scheduling/operations, market risk, or trading analytics?
3. How do banks, trading houses, and oil majors compare in terms of trading culture, mentorship, and long term career opportunities?

Would really appreciate insights from anyone familiar with the Houston commodities trading market. Thanks!