K-1 and 1099B

I know there have been variations of this question, but sometimes there are conflicting answers.  So here goes.  I bought and sold all my USO ETF in 2020 and received both a broker 1099-B and K-1 for the sale.  On the 1099-B, the cost was $2400 and sale was $3100, or a net income of $700.  On the K-1, the cost was $2400 but the sale was $3220 or a net income of $820.  So as not to duplicate the profit, I read that I would simply increase the cost basis of the 1099-B by $120 (the difference in profit).   But in doing that, I still owe more taxes than if I just reported the values of the 1099-B and didn't report the K-1.  I know it is best to report both, but do I adjust the 1099-B cost basis until I have the same tax if without a K-1?  Appreciate any help.  Thanks in Advance.