Vietnam appealed to Beijing over its looming jet fuel shortage. The Philippines asked China not to restrict fertilizer exports. After a visit to China last month to press the subject, Australia’s foreign minister said Beijing would cooperate with Australian companies on jet fuel shipments. The outreach produced assurances from China to address regional energy security issues as well as commitments from other countries to advance diplomatic dialogue with Beijing and, in some cases, cooperate on future renewable energy projects, according to government readouts. The diplomacy kept some Chinese fuel flowing, helping Asia avoid some of the worst-case scenarios that experts...