Market Overview - The oil service engineering sector experienced a decline of 0.46% on September 16, with Tongyuan Petroleum leading the drop [1] - The Shanghai Composite Index closed at 3861.87, up 0.04%, while the Shenzhen Component Index closed at 13063.97, up 0.45% [1] Individual Stock Performance - Key stocks in the oil service engineering sector showed mixed performance, with Huibo Yin closing at 3.24, up 0.93%, and Beiken Energy closing at 10.56, down 1.68% [1][2] - The trading volume and turnover for notable stocks included: - Huibo Yin: 482,900 shares, turnover of 155 million yuan - Shihua Oil Service: 1,015,700 shares, turnover of 216 million yuan - Potential Energy: 55,400 shares, turnover of 112 million yuan [1][2] Capital Flow Analysis - The oil service engineering sector saw a net outflow of 198 million yuan from institutional investors, while retail investors contributed a net inflow of 153 million yuan [2][3] - Notable capital flows for specific stocks included: - Zhongyou Engineering: Institutional net inflow of 499,300 yuan, retail net inflow of 2,545,200 yuan - Beiken Energy: Institutional net outflow of 17,508,300 yuan, retail net inflow of 24,413,100 yuan [3]

Group 1 - The core point of the announcement is that the controlling shareholder, Shanghai Zhongman Investment Holdings Co., Ltd., has been actively increasing its stake in Zhongman Petroleum and Natural Gas Group Co., Ltd. The shareholder has already purchased 1,435,000 shares, representing 0.31% of the total share capital, for an amount of 25.099 million yuan [1] - The controlling shareholder plans to continue purchasing shares with a total investment amount not less than 180 million yuan and not exceeding 360 million yuan, including previous purchases, within a 12-month period starting from March 13, 2025 [1] - As of the date of the announcement, the controlling shareholder has acquired an additional 4,322,828 shares between April 8 and June 30, 2025, with a total investment of 76.7856 million yuan, bringing the cumulative investment to 101.8846 million yuan [1] Group 2 - The company will participate in the 2025 Shanghai-listed companies collective reception day and mid-year performance briefing, aimed at enhancing interaction with investors [6] - The event is scheduled for September 19, 2025, and will be conducted online, allowing investors to engage with the company's leadership regarding its half-year performance, governance, and strategic development [7] - Investors are encouraged to submit questions prior to the event to ensure that the discussion addresses common concerns [7]

Core Viewpoint - Zhongman Petroleum announced a share buyback plan, with its controlling shareholder, Shanghai Zhongman Investment Holding Co., Ltd., increasing its stake in the company through a centralized bidding transaction [2] Summary by Relevant Sections - **Share Buyback Details** - The buyback period is from April 8, 2025, to June 30, 2025, during which Zhongman Holding plans to acquire 4,322,828 shares [2] - The total amount for this buyback is 76.7856 million yuan, excluding transaction fees [2] - Cumulatively, the total amount spent on share buybacks, including previous purchases, is 101.8846 million yuan, excluding transaction fees [2]

证券代码：603619 证券简称：中曼石油 公告编号：2025-055 中曼石油天然气集团股份有限公司 关于控股股东增持公司股份计划时间过半 暨增持进展的公告 本公司董事会、全体董事及控股股东保证本公告内容不存在任何虚假记载、 误导性陈述或者重大遗漏，并对其内容的真实性、准确性和完整性承担法律责任。 重要内容提示： 已披露增持计划情况 基于对公司长期投资价值和未来发展前景的高度认可，公司控股股东上海中 曼投资控股有限公司（以下简称"中曼控股"）于 2025 年 3 月 5 日-2025 年 3 月 6 日以集中竞价交易方式增持（以下简称"前次增持"）公司股份 1,435,000 股，占公司总股本的 0.31%，前次增持金额 2,509.90 万元（不含交易费用）。中 曼控股计划自 2025 年 3 月 13 日起 12 个月内，以自有资金和股票增持专项贷款 通过上海证券交易所系统以集中竞价交易方式增持公司无限售流通 A 股股份。增 持金额不低于人民币18,000万元，不超过人民币36,000万元（含前次增持金额）， 且 2025 年 3 月 13 日起至 2025 年 7 月 17 日增持金额不低于人民币 2 ...

为进一步加强与投资者的互动交流，中曼石油天然气集团股份有限公司(以下 简称"公司")将参加由中国证券监督管理委员会上海监管局指导、上海上市公司 协会及深圳市全景网络有限公司联合举办的"2025 年上海辖区上市公司集体接待 日暨中报业绩说明会活动"，现将有关事项公告如下: 本次活动将采用网络远程的方式举行，投资者可登录 "全景路演"网站 (https://rs.p5w.net/html/175611728073329.shtml);或关注微信公众号(名称:全景财经); 或下载全景路演 APP，参与本次互动交流。 活动时间为 2025 年 9 月 19 日(周五)15:00-17:00。届时公司董事长李春第先生、 董事兼总裁李世光先生、董事会秘书石明鑫先生将在线就公司 2025 年半年度业绩、 公司治理、发展战略、经营状况等投资者关心的问题，与投资者进行沟通与交流， 欢迎广大投资者踊跃参与！（如遇特殊情况，出席人员可能进行部分调整）。 为充分尊重投资者，提升交流的针对性，投资者可于 2025 年 9 月 19 日（周五） 14：00 前访问 http://ir.p5w.net/zj/进入问题征集专题页面。公司将在 ...

Group 1 - The core point of the article is that Zhongman Petroleum (603619.SH) has announced a share buyback plan, with a significant amount already executed [1] - As of the announcement date, Zhongman Holdings has increased its shareholding by 4.3228 million shares through centralized bidding from April 8, 2025, to June 30, 2025, with a total investment of 76.7856 million yuan (excluding transaction fees) [1] - The cumulative amount of shares bought back by Zhongman Holdings, including previous purchases, has reached 102 million yuan (excluding transaction fees) [1]

Market Overview - On September 12, the oil service engineering sector declined by 0.45% compared to the previous trading day, with Zhun Oil Co. leading the decline [1] - The Shanghai Composite Index closed at 3883.69, up 0.22%, while the Shenzhen Component Index closed at 12996.38, up 0.13% [1] Stock Performance - Key stocks in the oil service engineering sector showed varied performance, with Huibo Yin (002554) increasing by 3.01% to a closing price of 3.08, while Zhun Oil Co. (002207) decreased by 2.57% to 7.97 [2][1] - The trading volume and turnover for notable stocks included: - Huibo Yin: 418,000 shares, turnover of 127 million yuan - Zhun Oil Co.: 307,000 shares, turnover of 245 million yuan [2] Capital Flow - The oil service engineering sector experienced a net outflow of 242 million yuan from institutional investors, while retail investors saw a net inflow of 155 million yuan [2] - The capital flow for specific stocks indicated: - Zhun Oil Co.: Net outflow of 14.52 million yuan from institutional investors [3] - Huibo Yin: Net inflow of 13.11 million yuan from retail investors [3] Individual Stock Analysis - Zhun Oil Co. faced significant selling pressure with a net outflow of 14.52 million yuan from institutional investors, indicating a bearish sentiment [3] - Other stocks like Beiken Energy (002828) and Zhongman Petroleum (603619) also saw substantial net outflows of 22.26 million yuan and 27.30 million yuan, respectively [3]

Market Overview - The A-share market opened with mixed performance among the three major indices, with the Shanghai Composite Index up by 0.01%, the Shenzhen Component down by 0.3%, and the ChiNext Index down by 0.97% [1] Sector Performance - The industrial metals sector showed strength, with Northern Copper Co. hitting the daily limit up and Electric Alloy (300697) rising over 8% [1] - CPO concept stocks exhibited mixed results, with Qingshan Paper (600103) and Jingwang Electronics (603228) increasing over 7%, while Tianfu Communication, New Yisheng (300502), and Zhongji Xuchuang (300308) fell over 6% [1] - International oil prices saw a significant decline, leading to a lower opening for oil and gas stocks, with Tongyuan Petroleum (300164) and Zhongman Petroleum (603619) both dropping approximately 2% [1]

Market Overview - The A-share market opened with mixed performance among the three major indices, with the Shanghai Composite Index up by 0.01%, the Shenzhen Component down by 0.3%, and the ChiNext Index down by 0.97% [1] Sector Performance - The industrial metals sector showed strength, with Northern Copper Industries hitting the daily limit up, and Electric Alloy rising over 8% [1] - CPO concept stocks exhibited mixed results, with Qingshan Paper and Jingwang Electronics increasing by over 7%, while Tianfu Communication, New Yisheng, and Zhongji Xuchuang fell by over 6% [1] - International oil prices experienced a significant decline, leading to a lower opening for oil and gas stocks, with Tongyuan Petroleum and Zhongman Petroleum both dropping approximately 2% [1]

Market Overview - On September 11, the oil service engineering sector rose by 0.15% compared to the previous trading day, with CNOOC Development leading the gains [1] - The Shanghai Composite Index closed at 3875.31, up 1.65%, while the Shenzhen Component Index closed at 12979.89, up 3.36% [1] Individual Stock Performance - CNOOC Development (600968) closed at 3.97, with an increase of 1.28% and a trading volume of 620,900 shares, totaling a transaction value of 244 million yuan [1] - CNOOC Engineering (600583) closed at 5.39, up 0.75%, with a trading volume of 425,400 shares and a transaction value of 228 million yuan [1] - PetroChina Engineering (600871) closed at 2.10, up 0.48%, with a trading volume of 1,144,800 shares and a transaction value of 238 million yuan [1] - Other notable stocks include Renji Co. (002629) at 7.20 (+0.42%) and Yingshisi (601808) at 13.91 (+0.36%) [1] Capital Flow Analysis - The oil service engineering sector experienced a net outflow of 126 million yuan from institutional investors, while retail investors saw a net inflow of 157 million yuan [2] - The table indicates that CNOOC Development had a net inflow of 43.45 million yuan from institutional investors, while retail investors had a net outflow of 28.67 million yuan [3] - CNOOC Engineering saw a net inflow of 10.30 million yuan from institutional investors, with retail investors experiencing a net outflow of 1.61 million yuan [3] Summary of Key Stocks - CNOOC Development (600968) had a significant institutional net inflow of 43.45 million yuan, while retail investors had a net outflow of 28.67 million yuan [3] - CNOOC Engineering (600583) had a net inflow of 10.30 million yuan from institutional investors, with retail investors seeing a net outflow of 1.61 million yuan [3] - Other stocks like PetroChina Engineering (600871) and Renji Co. (002629) also showed varied capital flows, indicating mixed investor sentiment [3]