Hi Jackson! I do not believe we have had one recently, but Houston does have workshops on occasion. Haven't heard of there being a more informal meetup. I've been to some general meetups about data science, but not any specific to Tableau. I'm sure you've found all of the training online already, and these are particularly helpful starting out. Also, a lot of people share workbooks on the forums or in Tableau public, and these can be a great resource. It all depends on what questions you are trying to answer. The Tableau Conference is great (I went last year, but will not be able to this year). A lot of the sessions are shorter versions of the paid Tableau training and provide some great information. They should also have a track for your industry. At the end of the conference, most of the sessions are shared with attendees. So, if you can't make everything you want, you can watch it later. Seeing that you are in Oil/Gas, there are a lot of local users at a variety of companies. I'm sure you will find a good group to network with.
If you run into any difficulty, I recommend posting on the help forums once you've really gotten to the end of your rope. Always include a packaged workbook if you can, as this helps other users troubleshoot your issue.