The lines that have the “royalty interest” with a date and a product amount and a product price are the ones to track for production. The tax and fee lines are a net against the gross amounts. You will sometimes get correction lines for previous months. They “Should” have a previous month that equals them. They take off the incorrect number ad replace it with a new “correct” amount. Looks like this statement has some plant products correction months.
Some companies are better than others as far as readability.