--- title: "What are the differences between CNI Oil & Gas, Petrochemical Industry, and Subdivision Chemicals indices?" type: "News" locale: "zh-HK" url: "https://longbridge.com/zh-HK/news/281598333.md" description: "CNI Oil & Gas, CSI Petrochemical Industry, and CSI Chemicals Sub-industry indices each have different focuses. CNI Oil & Gas concentrates on the oil and gas sector, with a high concentration of constituent stocks, making it suitable for investors optimistic about rising oil prices; the Petrochemical Industry covers both oil and gas and chemicals, with a more balanced distribution of constituent stocks; the Chemicals Sub-industry focuses on chemical products, with a low concentration of constituent stocks. Investors can choose the corresponding index based on their needs, and the management fee for related ETFs is 0.15% per year, offering a cost advantage" datetime: "2026-04-03T02:59:11.000Z" locales: - [zh-CN](https://longbridge.com/zh-CN/news/281598333.md) - [en](https://longbridge.com/en/news/281598333.md) - [zh-HK](https://longbridge.com/zh-HK/news/281598333.md) --- > 支持的語言: [简体中文](https://longbridge.com/zh-CN/news/281598333.md) | [English](https://longbridge.com/en/news/281598333.md) # What are the differences between CNI Oil & Gas, Petrochemical Industry, and Subdivision Chemicals indices? In the layout of the energy and chemical sector, the indices that have attracted market attention include: CNI Oil & Gas Index (referred to as "CNI Oil & Gas"), CSI Petrochemical Industry Index (referred to as "Petrochemical Industry"), and CSI Chemicals Sub-industry Theme Index (referred to as "Chemicals Sub-industry"). What are the differences between these indices? How should we choose? **From the perspective of index positioning,** CNI Oil & Gas focuses on oil and gas exploration and development, oil and gas equipment and services, gas transmission and distribution sales, etc. Chemicals Sub-industry purely focuses on chemical products and other chemical industries, while Petrochemical Industry covers both oil and gas and chemical sectors, providing a broader coverage. **From the top ten constituent stocks,** CNI Oil & Gas is mainly composed of oil and gas extraction and storage and transportation companies, with the "Three Oil Giants" (China National Petroleum, China National Offshore Oil, China Petroleum & Chemical) each accounting for over 10%, and a high concentration of the top ten constituent stocks (67.9%); the Petrochemical Industry balances both chemical and oil and gas processing companies, including Wanhua Chemical, Salt Lake Industry, and the "Three Oil Giants," with a moderate concentration of the top ten constituent stocks (55.9%); Chemicals Sub-industry is primarily composed of chemical companies and does not involve the "Three Oil Giants," with a relatively low concentration of the top ten constituent stocks (45.2%). Data source: iFind, as of March 17, 2026. **From the perspective of market capitalization structure,** CNI Oil & Gas shows a "polarization" characteristic, with small-cap stocks below 10 billion accounting for as much as 50%, while there are also super large-cap stocks above 300 billion (accounting for 4%), resulting in relatively large overall elasticity; both Petrochemical Industry and Chemicals Sub-industry are mainly composed of mid-cap stocks between 10 billion and 50 billion, with a relatively balanced market capitalization distribution and smaller elasticity. **Constituent stock circulating market capitalization distribution** Data source: iFind, March 25. **In summary, for participating in oil "family" investments:** If you are optimistic about rising oil prices and prefer higher elasticity, pay attention to the CNI Oil & Gas Index. **Oil ETF** **E Fund** **(** **159181)** **has a management fee of 0.15% per year, while most similar ETFs have a management fee rate of 0.50% per year, providing significant long-term holding cost advantages.** If you want to seize investment opportunities in the entire petrochemical industry chain and pursue a relatively balanced allocation in segmented fields, pay attention to the CSI Petrochemical Industry Index. The **E Fund CSI Petrochemical Industry ETF** **(516570)** that tracks this index also has a significant fee advantage (0.15% per year) and ranks first in size among similar ETFs. If you focus on downstream investments in the petrochemical industry, pay attention to the CSI Chemicals Sub-industry Theme Index. Risk Warning: Funds carry risks, and investment should be cautious ### 相關股票 - [Invesco Great Wall CNI Oil&Gas ETF (159588.CN)](https://longbridge.com/zh-HK/quote/159588.CN.md) - [GF Fund CNI Oil&Gas ETF (159018.CN)](https://longbridge.com/zh-HK/quote/159018.CN.md) - [Tianhong CSI Chemicals Sub-industry ETF (159133.CN)](https://longbridge.com/zh-HK/quote/159133.CN.md) - [细分化工 (000813.CN)](https://longbridge.com/zh-HK/quote/000813.CN.md) - [Guotai CSI Oil & Gas Industry ETF (561360.CN)](https://longbridge.com/zh-HK/quote/561360.CN.md) - [China Merchants CNI Oil&Gas ETF (159197.CN)](https://longbridge.com/zh-HK/quote/159197.CN.md) - [Fullgoal CSI Subdivision Chemical Industry Theme ETF (516120.CN)](https://longbridge.com/zh-HK/quote/516120.CN.md) - [Fullgoal S&P Oil & Gas Exploration & Production Select Industry ETF(QDII) (513350.CN)](https://longbridge.com/zh-HK/quote/513350.CN.md) - [Penghua CNI Oil&Gas ETF (159697.CN)](https://longbridge.com/zh-HK/quote/159697.CN.md) - [ChinaAMC CSI Petrochemical Industry ETF (159731.CN)](https://longbridge.com/zh-HK/quote/159731.CN.md) - [CNI Oil&Gas (399439.CN)](https://longbridge.com/zh-HK/quote/399439.CN.md) - [E Fund CSI Petrochemical Industry ETF (516570.CN)](https://longbridge.com/zh-HK/quote/516570.CN.md) ## 相關資訊與研究 - [Strong Petrochemical Updates on Resumption Efforts and Ongoing Reporting Delays](https://longbridge.com/zh-HK/news/281220363.md) - [PetroChina says Strait of Hormuz oil and gas supplies account for roughly 10% of its operations](https://longbridge.com/zh-HK/news/280984885.md) - [Potentially recoverable oil at Namibia's Mopane field rises 57%, shareholder says](https://longbridge.com/zh-HK/news/281196633.md) - [BREAKINGVIEWS-US will keep dancing to global energy tune](https://longbridge.com/zh-HK/news/281397738.md) - [ROI-US natural gas supply outlook hinges on three key shale basins: Maguire](https://longbridge.com/zh-HK/news/281309376.md)