Extracting a string from a string

[nickydharia]

I have lengthy title names such as "Giant_SOW_20141203 clean US-OPP134163" which i need to extract the ID number which is US-OPP134163. The ID number is the same every time starting with 'US-OPP' and then 6 numeral digits. I am looking for a formula that will extract this ID number from titles. Please see the file attached for examples of title names and what my end project should look like in column B.

Thank you,
Nick

[minnesotaart]

Use this formula in (for example) B2:
=MID(A2,FIND("US-OPP",A2),12)