Core Insights - The oil service engineering sector experienced a 0.5% increase on December 24, with Huibo Po leading the gains [1] - The Shanghai Composite Index closed at 3940.95, up 0.53%, while the Shenzhen Component Index closed at 13486.42, up 0.88% [1] Sector Performance - The following companies in the oil service engineering sector showed notable price changes: - Huibo Po (002554) closed at 3.33, up 2.46% with a trading volume of 553,500 shares and a transaction value of 181 million yuan [1] - China Oil Engineering (600339) closed at 3.37, up 1.51% with a trading volume of 230,100 shares and a transaction value of 77.02 million yuan [1] - Beiken Energy (002828) closed at 11.06, up 1.37% with a trading volume of 74,800 shares and a transaction value of 82.43 million yuan [1] - Other companies such as Zhonghai Aofeng (601808) and Bomai Ke (603727) also saw slight increases in their stock prices [1] Capital Flow - The oil service engineering sector saw a net outflow of 32.18 million yuan from institutional investors and 32.67 million yuan from retail investors, while there was a net inflow of 64.85 million yuan from individual investors [2] - The detailed capital flow for specific companies indicates varied investor behavior, with some companies experiencing significant net outflows from institutional and retail investors [3]

证券代码：603619 证券简称：中曼石油 公告编号：2025-076 中曼石油天然气集团股份有限公司 关于变更签字会计师及质量控制复核人的公告 本公司董事会及全体董事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。 中曼石油天然气集团股份有限公司（以下简称"公司"）已于 2025 年 4 月 23 日召开第四届董事会第八次会议，于 2025 年 6 月 5 日召开 2024 年年度股东 大会，审议通过了《关于续聘中汇会计师事务所（特殊普通合伙）担任公司 2025 年度审计机构的议案》，同意公司续聘中汇会计师事务所（特殊普通合伙）（以 下简称"中汇"）为公司 2025 年度财务报表和内部控制审计机构，负责公司 2025 年度的审计工作，具体内容详见公司于 2025 年 4 月 25 日披露的《中曼石油天然 气集团股份有限公司续聘会计师事务所的公告》（公告编号：2025-017）。 公司于 2025 年 12 月 24 日收到中汇出具的《关于变更签字会计师及质量控 制复核人的告知函》，现将有关情况公告如下： 一、本次签字会计师及质量控制复核人变更情况 ...

Shareholder Reductions - Zhang Fan from 壹网壹创 plans to reduce his holdings by no more than 2.5% [1] - Yan Jun, honorary chairman and chief scientist of 航宇微, intends to reduce his holdings by no more than 1.66% [1] - 长安信托·中保投1号信托, a shareholder of 紫光股份, plans to reduce its holdings by no more than 1% [1] - Jiang Shuguang, deputy general manager of 崇达技术, plans to reduce his holdings by no more than 200,000 shares [1] - 热景生物 intends to sell back repurchased shares not exceeding 1.8542 million shares [1] - Yuan Meihe, a shareholder of 欧科亿, plans to reduce his holdings by no more than 1.89% [1] - Zhu Fengxue and his concerted actions from 中曼石油 will collectively reduce their holdings by 0.35% [1] - Tokyo Guorui, a shareholder of 燕东微, has already reduced its holdings by 0.88% [1] - Huaguang New Materials' shareholder, Huan Guang Investment, has cumulatively reduced its holdings by 1.60% [1] - Jiayuan Group has reduced its holdings in 吉祥航空 by 8.6065 million shares [1] - Longgao Electric New from 富特科技 has cumulatively reduced its holdings by 1.00% [1] - Actual controller Shi Huiqing from 可川科技 has reduced his holdings by 1.05% [1] - Lu Xinchun, a shareholder of 华海清科, has reduced his holdings by 3.3156 million shares [1] Other Corporate Actions - 建设机械 has terminated the issuance of shares to specific objects [1] - 蒋伟, the controlling shareholder of 吴海生科, has been fined 14.6292 million yuan by the China Securities Regulatory Commission [1]

Core Viewpoint - The announcement from Zhongman Petroleum indicates a significant reduction in shareholding by major shareholders, which may impact the company's stock performance and investor sentiment [2] Group 1: Shareholding Changes - Zhongman Petroleum announced that major shareholders Zhu Fengxue and Shanghai Gongrong Investment Center reduced their holdings by a total of 1,626,600 shares, representing 0.35% of the company's total share capital [2] - Zhu Fengxue sold 185,800 shares, accounting for 0.04% of the total share capital, while Gongrong Investment sold 1,440,800 shares, which is 0.31% of the total share capital [2] - Following this reduction, the combined shareholding of Zhu Fengxue and Gongrong Investment decreased from 33,301,339 shares to 31,674,739 shares, with their total holding percentage dropping from 7.21% to 6.86% [2]

证券之星消息，截至2025年12月23日收盘，中曼石油(603619)报收于22.26元，下跌0.54%，换手率 1.48%，成交量6.83万手，成交额1.51亿元。 该股最近90天内共有3家机构给出评级，买入评级3家。 资金流向名词解释：指通过价格变化反推资金流向。股价处于上升状态时主动性买单形成的成交额是推 动股价上涨的力量，这部分成交额被定义为资金流入，股价处于下跌状态时主动性卖单产生的的成交额 是推动股价下跌的力量，这部分成交额被定义为资金流出。当天两者的差额即是当天两种力量相抵之后 剩下的推动股价上升的净力。通过逐笔交易单成交金额计算主力资金流向、游资资金流向和散户资金流 向。 注：主力资金为特大单成交，游资为大单成交，散户为中小单成交 以上内容为证券之星据公开信息整理，由AI算法生成（网信算备310104345710301240019号），不构成 投资建议。 该股主要指标及行业内排名如下： 中曼石油2025年三季报显示，前三季度公司主营收入29.85亿元，同比下降2.18%；归母净利润4.53亿 元，同比下降32.18%；扣非净利润4.32亿元，同比下降31.78%；其中2025年第三季度，公司单 ...

关于持股 5%以上的股东权益变动触及 1%刻度 的提示性公告 股东朱逢学及其一致行动人保证向本公司提供的信息真实、准确、完整， 没有虚假记载、误导性陈述或重大遗漏。 本公司董事会及全体董事保证公告内容与信息披露义务人提供的信息 一致。 一、信息披露义务人及其一致行动人的基本信息 证券代码：603619 证券简称：中曼石油 公告编号：2025-075 中曼石油天然气集团股份有限公司 1.身份类别 | | □控股股东/实际控制人及其一致行动人 | | --- | --- | | | ☑其他 5%以上大股东及其一致行动人 | | 投资者及其一致行动人的身份 | □合并口径第一大股东及其一致行动人（仅适用 | | | 于无控股股东、实际控制人） | | | □其他______________（请注明） | 2.信息披露义务人信息 | 信息披露义务人名称 | | 投资者身份 | 统一社会信用代码 | | --- | --- | --- | --- | | | □ □ | 控股股东/实控人 | | | 朱逢学 | | 控股股东/实控人的一致 | 不适用 ☑ | | | 行动人 | | | 3.一致行动人信息 | 一致行动 ...

Core Viewpoint - Zhongman Petroleum (603619.SH) announced a reduction in shareholding by major shareholders Zhu Fengxue and Shanghai Gongrong Investment Center, indicating a shift in ownership dynamics within the company [1] Shareholding Changes - Zhu Fengxue and Gongrong Investment collectively reduced their holdings by 1,626,600 shares from December 19 to December 22, 2025, representing 0.35% of the company's total share capital [1] - Zhu Fengxue sold 185,800 shares, accounting for 0.04% of the total share capital, while Gongrong Investment sold 1,440,800 shares, representing 0.31% of the total share capital [1] - Following this transaction, Zhu Fengxue and Gongrong Investment's total shareholding decreased from 33,301,339 shares to 31,674,739 shares, reducing their combined ownership percentage from 7.21% to 6.86%, which is a change that touches the 1% threshold [1]

Core Viewpoint - Zhongman Petroleum announced a share reduction by major shareholders Zhu Fengxue and his concerted party Gongrong Investment, totaling 1.6266 million shares, which represents 0.35% of the total share capital [1] Group 1: Shareholder Actions - Zhu Fengxue reduced his holdings by 185,800 shares, accounting for 0.04% of the total shares [1] - Gongrong Investment reduced its holdings by 1,440,800 shares, representing 0.31% of the total shares [1] - Following this reduction, the combined shareholding of Zhu Fengxue and Gongrong Investment decreased from 7.21% to 6.86%, reaching a 1% threshold [1] Group 2: Compliance and Impact - The share reduction aligns with previously disclosed plans and does not trigger a mandatory tender offer [1] - The reduction will not result in any changes to the controlling shareholder or actual controller of the company [1]

来源：中国能源网 【美国原油供给】截至2025年12月12日当周，美国原油产量为1384.3万桶/天，较上周减少1.0万桶/天。 截至2025年12月19日当周，美国活跃钻机数量为406台，较上周减少8台。截至2025年12月19日当周，美 国压裂车队数量为160部，较上周减少8部。 【美国原油需求】截至2025年12月12日当周，美国炼厂原油加工量为1698.8万桶/天，较上周增加12.8万 桶/天，美国炼厂开工率为94.80%，较上周上升0.3pct。 【美国原油库存】截至2025年12月12日当周，美国原油总库存为8.37亿桶，较上周减少102.5万桶 （-0.12%）；战略原油库存为4.12亿桶，较上周增加24.9万桶（+0.06%）；商业原油库存为4.24亿桶， 较上周减少127.4万桶（-0.30%）；库欣地区原油库存为2086.2万桶，较上周减少74.2万桶（-3.43%）。 【美国成品油库存】截至2025年12月12日当周，美国汽油总体、车用汽油、柴油、航空煤油库存分别为 22562.7、1426.3、11850.0、4357.6万桶，较上周分别+480.8（+2.18%）、-192.1（-1 ...

Investment Rating - The report maintains a "Positive" investment rating for the oil processing industry, consistent with the previous rating [1]. Core Insights - International oil prices experienced fluctuations, with Brent and WTI prices recorded at $60.05 and $56.52 per barrel respectively as of December 19, 2025, reflecting a decrease of 1.75% and 1.60% from the previous week [2][9]. - The geopolitical situation, particularly discussions around the Russia-Ukraine peace agreement and U.S. sanctions on Venezuela, has influenced market dynamics, leading to a mixed impact on oil prices [2][9]. - The oil and petrochemical sector showed resilience, with a 1.60% increase in the sector's performance compared to a 0.28% decline in the broader market (CSI 300) [10]. Summary by Sections Oil Price Review - As of December 19, 2025, Brent crude futures settled at $60.05 per barrel, down $1.07 (-1.75%), while WTI crude futures settled at $56.52 per barrel, down $0.92 (-1.60%) [2][17]. - The Urals crude price remained stable at $65.49 per barrel, while ESPO crude fell to $47.86 per barrel, down $1.77 (-3.57%) [2][17]. Offshore Drilling Services - The number of global offshore self-elevating drilling rigs increased to 375, with a net addition of 7 rigs, while floating drilling rigs rose to 131, with a net addition of 2 rigs [27]. U.S. Oil Supply - U.S. crude oil production was reported at 13.843 million barrels per day, a decrease of 10,000 barrels from the previous week [44]. - The active rig count in the U.S. decreased to 406, down by 8 rigs [44]. U.S. Oil Demand - U.S. refinery crude processing increased to 16.988 million barrels per day, with a utilization rate of 94.80%, up 0.3 percentage points from the previous week [55]. U.S. Oil Inventory - Total U.S. crude oil inventory stood at 837 million barrels, a decrease of 1.025 million barrels (-0.12%) from the previous week [62]. - Strategic oil reserves increased slightly to 412 million barrels, while commercial inventories decreased to 424 million barrels [62]. Related Companies - Key companies in the sector include China National Offshore Oil Corporation (CNOOC), China Petroleum & Chemical Corporation (Sinopec), and PetroChina, among others [3].