Sou Hu Cai Jing·2025-04-30 08:02Core Viewpoint - The China Oil and Gas Industry Index has shown a decline in performance over the past month, three months, and year-to-date, indicating a challenging environment for companies in the oil and gas sector [1][2]. Group 1: Index Performance - The China Oil and Gas Industry Index closed at 1702.45 points, down 0.1% on the day, with a trading volume of 13.015 billion yuan [1]. - Over the past month, the index has decreased by 5.06%, by 5.11% over the last three months, and by 7.93% year-to-date [1]. Group 2: Index Composition - The index includes companies involved in oil and gas exploration, equipment manufacturing, transportation, sales, refining, and primary petrochemical production [1]. - The top ten weighted companies in the index are: China National Petroleum (10.35%), China National Offshore Oil (10.1%), Sinopec (9.56%), Guanghui Energy (5.06%), China Merchants Energy (3.78%), Jereh Group (3.67%), Hengli Petrochemical (3.21%), Satellite Chemical (3.13%), Dongfang Shenghong (2.8%), and COSCO Shipping Energy (2.79%) [1]. - The index is primarily composed of companies listed on the Shanghai Stock Exchange (71.28%) and the Shenzhen Stock Exchange (28.72%) [1]. Group 3: Industry Breakdown - The industry composition of the index shows that energy accounts for 61.78%, materials for 20.62%, industrials for 14.80%, finance for 1.71%, and utilities for 1.10% [2]. - The index samples are adjusted biannually, with changes implemented on the next trading day following the second Friday of June and December [2].