Oil Paint Tool shuts down program

Almost certainly a gpu issue. Try the steps here: https://helpx.adobe.com/photoshop/kb/troubleshoot-gpu-graphics-card.html#DisableGraphicsProcessor Updating the graphics driver or the card altogether will likely solve your problem.

Also, I'm not seeing any submitted crash reports from you in our system.

If you haven't done so already, please submit all Crash Reports along with your email address: https://helpx.adobe.com/photoshop/kb/submit-crash-reports.html 

Hello, JenJoan, sorry to hear that.

Could you please share your system info from Photoshop>Help>System Info?