Max energy level up?

Hi everybody, i want to know at what level of Prod system you get your max energy increased. I have 7000 in Ring Craft and the only times i get a raise of the max energy was at 1000, 4000 and 7000. I dont know about other types of craft (Equipment and weapons) because i have them at 2000. I read the wormy patch notes, but i want to see if they are correct from your experience.

Thanks for the input!

Never mind, i figured it out. Just for the record, you win energy only at 1000, 4000, 7000 and 10K. I check again the Wormy's patchnotes again and they are correct.

Cool, I actually wasn't sure how that worked. Thanks.

3k4.