Kohei Toyoda, Associated Researcher of RCAST and Member of ROLES, published a ROLES Commentary on the topic of the UAE's withdrawal from OPEC and OPEC+.

Kohei Toyoda, "UAE's Withdrawal from OPEC and Divergent Strategies of UAE and Saudi Arabia: Oil Market, Regional Security and Economic Competition" ROLES Commentary Nnno. 58, RCAST Open Laboratory for Emergence Strategies (ROLES), June 14, 2026.