5月18日电，阿曼能源和矿产部与西方石油签署协议，修改和延长53号区块勘探和生产共享协议，协议延长至2050年，投资额约为115亿阿曼里亚尔。

Group 1 - The core point of the article is the signing of an agreement between the Ministry of Energy and Minerals of Oman and Occidental Petroleum to modify and extend the exploration and production sharing agreement for Block 53 until 2050, with an investment amount of approximately 11.5 billion Omani Rials [1] Group 2 - The agreement signifies a long-term commitment to the development of Block 53, which is expected to enhance oil production and exploration activities in the region [1] - The investment of 11.5 billion Omani Rials indicates a significant financial commitment from Occidental Petroleum, reflecting confidence in the potential of the block [1] - The extension of the agreement until 2050 aligns with global trends towards long-term energy projects, emphasizing the importance of stable partnerships in the energy sector [1]