Operating revenue at the Port of Oakland reached an all-time high in Fiscal Year 2015. The Port today reported $336.6 million in revenue for the year ended June 30. That was up 4.2 percent from the previous year. “The result is encouraging, given the challenges we faced,” said Executive Director Chris Lytle. “The job now is to build on our strengths and grow our business.” The Port reported revenue increases in all three of its major business lines: The Port said operating expense increased 6.8 percent during FY 2015. That led to an 8.5 percent decline in operating income from the previous year. • Aviation: up 3.1 percent due largely to an 8.7 percent boost in passenger traffic at Oakland International Airport; • Commercial Real Estate: up nearly 20 percent;  • Maritime: up 3.9 percent despite a 6.5 percent decline in loaded container volume that followed a labor dispute last winter on the West Coast waterfront. The Port said operating expense increased 6.8 percent during FY 2015. That led to an 8.5 percent decline in operating income from the previous year.