Yes. I count 160 acres based on these legal descriptions, and I’ve seen abbreviations like this sometimes go NWNW4 rather than NW4NW4. Your mineral deed or lease will contain some more information and clarity on the acreage you have. If you don’t have a copy of it, you can obtain it from your County Clerk’s land records office.
If you’re still uncertain after looking at the deed or conveyance, you can always go up the title chain or look at what everybody else has in the section. Sometimes that can provide a little more clarity. Bottom line, if you’re willing to do the work, there’s resources to figure out what you have.