Following the initial peace talks in the Middle East last week, petroleum products are set to post substantial price rollbacks across gasoline, diesel, and kerosene.Effective Tuesday, June 23, the Department of Energy (DOE) has prescribed a range of oil price adjustments to be implemented by oil companies this week.Based on computations, gasoline prices should fall by ₱3.90 to ₱5.90 per liter this week, diesel by ₱9.04 to ₱11.04 per liter, and k…