user: Question: What was the startup year for the project with a NIOC operator?
Columns: ['Country', 'Project Name', 'Year startup', 'Operator', 'Peak']
Types: ['text', 'text', 'text', 'text', 'text']
Sample row: ['OPEC', 'OPEC', 'OPEC', 'OPEC', 'OPEC']
SQL:

assistant: SELECT "Year startup" FROM "Table" WHERE "Operator" = 'NIOC';