This photo taken on Aug. 19, 2026 shows a sunset view seen from a geophysical survey vessel of Caspian Geophysical Company, a China-Azerbaijan joint venture, in the Caspian Sea near Baku, Azerbaijan. (Xinhua/Chen Junfeng)

This photo taken on Aug. 19, 2026 shows a sunset view seen from a geophysical survey vessel of Caspian Geophysical Company, a China-Azerbaijan joint venture, in the Caspian Sea near Baku, Azerbaijan. (Xinhua/Chen Junfeng)

This photo taken on Aug. 19, 2026 shows a sunset view seen from a geophysical survey vessel of Caspian Geophysical Company, a China-Azerbaijan joint venture, in the Caspian Sea near Baku, Azerbaijan. (Xinhua/Chen Junfeng)

This photo taken on Aug. 19, 2026 shows a sunset view seen from a geophysical survey vessel of Caspian Geophysical Company, a China-Azerbaijan joint venture, in the Caspian Sea near Baku, Azerbaijan. (Xinhua/Chen Junfeng)

This photo taken on Aug. 18, 2026 shows a sunset view seen from a geophysical survey vessel of Caspian Geophysical Company, a China-Azerbaijan joint venture, in the Caspian Sea near Baku, Azerbaijan. (Xinhua/Chen Junfeng)

This photo taken on Aug. 18, 2026 shows a sunset view seen from a geophysical survey vessel of Caspian Geophysical Company, a China-Azerbaijan joint venture, in the Caspian Sea near Baku, Azerbaijan. (Xinhua/Chen Junfeng)