Core Insights - The oil service engineering sector experienced a slight increase of 0.13% on December 2, with Haiyou Development leading the gains [1] - The Shanghai Composite Index closed at 3897.71, down 0.42%, while the Shenzhen Component Index closed at 13056.7, down 0.68% [1] Stock Performance - Haiyou Development (600968) closed at 3.86, up 1.58% with a trading volume of 596,000 shares and a transaction value of 228 million yuan [1] - Haiyou Engineering (600583) closed at 5.54, up 1.28% with a trading volume of 441,300 shares and a transaction value of 244 million yuan [1] - Other notable stocks include: - Dongsi Thought (601808) at 14.41, up 0.84% [1] - Zhongyou Engineering (600339) at 3.40, unchanged [1] - Beiken Energy (002828) at 12.18, down 0.49% [1] - Shihua Oil Service (600871) at 2.33, down 0.85% [1] - Tongyuan Petroleum (300164) at 6.05, down 1.31% [1] - Huibo Yin (002554) at 3.55, down 1.66% [1] - Zhongman Petroleum (603619) at 22.24, down 1.94% [1] - Bomai Ke (603727) at 15.35, down 2.17% [1] Capital Flow - The oil service engineering sector saw a net outflow of 210 million yuan from institutional investors, while retail investors contributed a net inflow of 248 million yuan [2][3] - Key stocks with significant capital flow include: - Tongyuan Petroleum (300164) with a net outflow of 40.06 million yuan from institutional investors [3] - Renji Co. (002629) with a net outflow of 33.28 million yuan from institutional investors [3] - Zhongman Petroleum (603619) with a net outflow of 26.94 million yuan from institutional investors [3] - Huibo Yin (002554) with a net outflow of 21.44 million yuan from institutional investors [3] - Haiyou Engineering (600583) with a net outflow of 20.98 million yuan from institutional investors [3]

- The report introduces two key tracking indicators: "Large Order Transaction Amount Proportion" and "Net Active Buy Amount Proportion" [7] - The "Large Order Transaction Amount Proportion" is designed to capture the buying behavior of large funds. It is calculated by identifying large orders from transaction data and computing the proportion of large buy orders' transaction amounts relative to the total daily transaction amount [7] - The "Net Active Buy Amount Proportion" reflects investors' active buying behavior. It is derived by distinguishing active buy and sell transactions from transaction data, calculating the net active buy amount (active buy amount minus active sell amount), and expressing it as a proportion of the total daily transaction amount [7] Factor Backtesting Results - For individual stocks, the top 10 stocks with the highest 5-day average "Large Order Transaction Amount Proportion" include Xinhua Du (90.6%, 99.2% percentile), Beichen Industrial (89.1%, 98.8% percentile), and Zhongyou Engineering (88.8%, 100.0% percentile) [9] - For individual stocks, the top 10 stocks with the highest 5-day average "Net Active Buy Amount Proportion" include Senying Windows (22.3%, 100.0% percentile), Huitong Group (20.0%, 100.0% percentile), and Yuandong Biotech (19.6%, 100.0% percentile) [10] - For broad-based indices, the 5-day average "Large Order Transaction Amount Proportion" ranges from 71.7% (Shanghai 50 Index) to 74.3% (China Securities 500 Index), while the "Net Active Buy Amount Proportion" ranges from -5.2% (Shanghai 50 Index) to 1.9% (China Securities 500 Index) [12] - For industries, the 5-day average "Large Order Transaction Amount Proportion" is highest in the banking sector (80.6%, 86.5% percentile) and lowest in the electronics sector (70.8%, 16.4% percentile). The "Net Active Buy Amount Proportion" is highest in the steel sector (7.9%, 75.8% percentile) and lowest in the banking sector (-14.6%, 3.3% percentile) [13] - For ETFs, the top 10 ETFs with the highest 5-day average "Large Order Transaction Amount Proportion" include Guotai CSI A500 ETF (92.3%, 36.1% percentile) and Guotai SSE 10-Year Treasury Bond ETF (90.7%, 89.3% percentile) [15] - For ETFs, the top 10 ETFs with the highest 5-day average "Net Active Buy Amount Proportion" include Southern SSE STAR Chip ETF (27.5%, 100.0% percentile) and E Fund Hang Seng Dividend Low Volatility ETF (23.6%, 99.6% percentile) [16]

Core Insights - The oil service engineering sector experienced a rise of 1.78% on December 1, with Keli Co., Ltd. leading the gains [1] - The Shanghai Composite Index closed at 3914.01, up 0.65%, while the Shenzhen Component Index closed at 13146.72, up 1.25% [1] Stock Performance - Keli Co., Ltd. (code: 920088) closed at 32.01, with a gain of 6.17% and a trading volume of 39,200 shares, amounting to a transaction value of 123 million yuan [1] - Tongyuan Petroleum (code: 300164) closed at 6.13, up 5.69%, with a trading volume of 1,137,300 shares and a transaction value of 687 million yuan [1] - Zhun Oil Co., Ltd. (code: 002207) closed at 8.68, increasing by 4.20%, with a trading volume of 320,300 shares and a transaction value of 277 million yuan [1] - Other notable performers include Shihua Oil Service (code: 600871) with a 3.07% increase and a closing price of 2.35, and Tian Sihua (code: 601808) with a 2.29% increase, closing at 14.29 [1] Fund Flow Analysis - The oil service engineering sector saw a net outflow of 113 million yuan from institutional investors, while retail investors contributed a net inflow of 168 million yuan [2] - Keli Co., Ltd. had a net inflow of 11.38 million yuan from institutional investors, representing 9.25% of its total trading volume [3] - Other companies like Haiyou Development (code: 600968) and Tongyuan Petroleum experienced mixed fund flows, with Haiyou Development seeing a net inflow of 10.62 million yuan from institutional investors [3]

Core Points - The company announced a total of 13 guarantees amounting to approximately 30.11 million RMB in October 2025 [1] - The company and its subsidiaries have an approved guarantee limit of up to 51.126 billion RMB for the year 2025, effective from January 1 to December 31, 2025 [2] - The guarantees provided include 50.301 billion RMB for subsidiaries with a debt-to-asset ratio above 70% and 0.825 billion RMB for those below [4] - The total guarantee amount from January to October 2025 is approximately 3.991 billion RMB, with bank credit guarantees accounting for about 2.253 billion RMB and performance guarantees for about 1.738 billion RMB [6] Guarantee Details - The company has completed the approval process for the guarantees in October 2025 within the previously set limits [3] - The guarantees are aimed at enhancing the company's competitive edge in market development and project contracting, aligning with the interests of all shareholders [6] - As of October 31, 2025, the total guarantee balance is approximately 44.887 billion RMB, representing 169.31% of the company's audited net assets as of December 31, 2024 [6]

（文章来源：证券日报） 证券日报网讯 11月28日晚间，中油工程发布公告称，2025年10月份，公司及子公司对所属各级分、子 公司实际发生的担保共计13笔，均为授信担保，担保金额约3010.95万元。 ...

Market Overview - The oil service engineering sector increased by 0.47% on November 28, with Beiken Energy leading the gains [1] - The Shanghai Composite Index closed at 3888.6, up 0.34%, while the Shenzhen Component Index closed at 12984.08, up 0.85% [1] Stock Performance - Beiken Energy (002828) closed at 12.21, up 5.35% with a trading volume of 395,000 shares and a turnover of 477 million yuan [1] - Huibo Yin (002554) closed at 3.66, up 5.17% with a trading volume of 454,800 shares and a turnover of 164 million yuan [1] - Zhun Oil Co. (002207) closed at 8.33, up 4.52% with a trading volume of 294,100 shares and a turnover of 242 million yuan [1] - Tongyuan Petroleum (300164) closed at 5.80, up 4.13% with a trading volume of 713,900 shares and a turnover of 410 million yuan [1] - Other notable performers include Keli Co. (920088) and Qian Neng Heng Xin (300191), with increases of 2.20% and 1.86% respectively [1] Capital Flow - The oil service engineering sector saw a net inflow of 91.91 million yuan from institutional investors, while retail investors experienced a net outflow of 74.93 million yuan [2] - The overall capital flow indicates a mixed sentiment, with institutional investors showing confidence while retail investors withdrew funds [2] Individual Stock Capital Flow - Tongyuan Petroleum (300164) had a net outflow of 32.24 million yuan from institutional investors, indicating a lack of confidence [3] - Zhun Oil Co. (002207) experienced a net inflow of 17.01 million yuan from institutional investors, suggesting positive sentiment [3] - Beiken Energy (002828) saw a net inflow of 12.63 million yuan from institutional investors, reflecting strong interest [3]

证券代码：600339 证券简称：中油工程 公告编号：临 2025-063 中国石油集团工程股份有限公司 关于 2025 年 10 月份担保发生情况的公告 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。 重要内容提示： 担保对象及基本情况 | | 被担保人名称 | | | 中国石油工程建设有限公司 | | --- | --- | --- | --- | --- | | | 本次担保金额 | | | 8,071,207.85 元 | | 担保对象一 | 实际为其提供的担保余额 | | | 11,303,575,692.73 元 | | | 是否在前期预计额度内 | 是 | □否 | □不适用：_________ | | | 本次担保是否有反担保 | □是 | 否 | □不适用：_________ | | 担保对象二 | 被担保人名称 | | | 中国石油管道局工程有限公司 | | | 本次担保金额 | | | 14,563,421.44 元 | | | 实际为其提供的担保余额 | | | 11,688,305,218.96 ...

Market Overview - The oil service engineering sector saw a slight increase of 0.07% on November 27, with Renji Co., Ltd. leading the gains [1] - The Shanghai Composite Index closed at 3875.26, up 0.29%, while the Shenzhen Component Index closed at 12875.19, down 0.25% [1] Stock Performance - Renji Co., Ltd. (002629) closed at 8.33, up 5.04% with a trading volume of 242,300 shares [1] - Other notable stocks included: - CNOOC Development (600968) at 3.73, up 0.54% [1] - Zhongman Petroleum (603609) at 23.27, up 0.52% [1] - China Oil Engineering (600339) at 3.35, up 0.30% [1] - The overall trading volume and turnover for the oil service engineering sector were significant, with various stocks showing mixed performance [1][2] Capital Flow - The oil service engineering sector experienced a net outflow of 3.09 million yuan from institutional investors, while retail investors saw a net inflow of 30.19 million yuan [2] - The detailed capital flow for specific stocks indicated varying trends, with some stocks experiencing significant outflows from institutional and speculative investors [3] Individual Stock Capital Flow - Major stocks and their capital flow included: - CNOOC Engineering (600583) with a net inflow of 21.34 million yuan from institutional investors [3] - Zhongman Petroleum (603619) with a net inflow of 18.28 million yuan [3] - However, stocks like Huibo Energy (002554) and PetroChina Oilfield Services (600871) faced notable net outflows [3]

Core Viewpoint - Company reported steady improvement in operational quality and profitability, with a revenue of 57.529 billion yuan and a net profit of 0.523 billion yuan for the first three quarters of 2025 [2][8]. Financial Performance - For the first three quarters of 2025, the company achieved a revenue of 57.529 billion yuan, a year-on-year increase of 12.42%, while the net profit attributable to shareholders was 0.523 billion yuan, a decrease of 17.22% [8]. - The company signed new contracts worth 99.216 billion yuan, representing a year-on-year growth of 5.25% [8]. International Business - The company secured new contracts worth 25.264 billion yuan in international markets, accounting for 25.46% of total new contracts, including projects in the UAE and Iraq related to the Belt and Road Initiative [3][8]. Risk Management - The company is enhancing project management by optimizing responsibility allocation, strengthening budget constraints, and improving supply chain management to mitigate risks associated with long-cycle projects [4]. Financial Safety - The company is focusing on cash flow management by predicting cash inflows and outflows, ensuring timely collection of receivables, and maintaining necessary financing channels [5]. Brand and Project Execution - The company has executed nearly 70,000 projects since its listing, showcasing its strong brand influence and commitment to high-quality project delivery, particularly in Belt and Road countries [6]. Cash Position - As of September 30, 2025, the company reported cash and cash equivalents of 30.365 billion yuan [7]. Contract Composition - In the first three quarters of 2025, domestic contracts accounted for 73.952 billion yuan (74.54%), while emerging businesses contributed 28.015 billion yuan (28.23%) of the total new contracts [8].

Group 1 - The company disclosed that as of September 30, 2025, the number of shareholders is 68,489 [1]