Leaders in Baghdad and Erbil are still far away from achieving a long-lasting resolution to Iraq’s oil policy disputes, even though the tides of optimism have swelled in the past few weeks.There is reason to be hopeful. In November, the autonomous Kurdistan Regional Government (KRG) began participating in federal Iraqi oil exports for the first time since 2013, and began receiving federal budget payments. On Dec. 2, the Iraqi Cabinet ratified a political agreement that could help move that …