12月18日，上证指数涨0.16%，收报3876.37点，恒生指数涨0.12%，收报25498.13点。 中海油服AH溢价达120.67%，位居AH股溢价率第29位。当日收盘，中海油服A股报13.78元，涨幅 1.1%，H股报6.9港元，上涨0.58%。 *注：AH股是指同时在A股和港股上市的公司，溢价（A/H）越大，说明H股相比A股越便宜。 本文源自：市场资讯 作者：金股通 资料显示，中海油田服务股份有限公司(中海油服,China Oilfield Services Limited或COSL)是全球较具规 模的综合型油田服务供应商。服务贯穿海上石油及天然气勘探,开发及生产的各个阶段。业务分为四大 类:物探勘察服务、钻井服务、油田技术服务及船舶服务。COSL于2002年11月20日公开发行H股,并在香 港联合交易所主板上市,股票编号:2883。2004年3月26日起,COSL之股票以一级美国存托凭证的方式在美 国柜台市场进行交易,股票编号为CHOLY。COSL于2007年9月28日在上海证券交易所上市,A股股票简称: 中海油服,股票编号:601808。 ...

Core Viewpoint - CNOOC Services' stock price has experienced fluctuations, with a current decline of 2.01% and a year-to-date decrease of 2.46%, despite a recent 20-day increase of 5.93% [1] Financial Performance - For the period from January to September 2025, CNOOC Services reported a revenue of 34.854 billion, reflecting a year-on-year growth of 3.54%, and a net profit attributable to shareholders of 3.209 billion, which is a significant increase of 31.28% [2] Shareholder Information - As of September 30, 2025, the number of shareholders for CNOOC Services decreased by 6.08% to 64,000, with an average of 0 circulating shares per person [2] - The company has distributed a total of 15.492 billion in dividends since its A-share listing, with 2.866 billion distributed over the last three years [3] Major Shareholders - The top circulating shareholder is China Securities Finance Corporation, holding 138 million shares, unchanged from the previous period [3] - Other notable shareholders include招商优质成长混合(LOF) and华泰柏瑞沪深300ETF, with changes in their holdings compared to the previous period [3]

Core Viewpoint - CNOOC Services, established in 2001 and listed in 2007, is one of the largest integrated oilfield service providers globally, covering all stages of oil and gas exploration, development, and production, with a rare full industry chain service capability [1] Financial Performance - In Q3 2025, CNOOC Services achieved a revenue of 34.854 billion yuan, ranking 2nd in the industry, surpassing the industry average of 16.033 billion yuan and the median of 1.866 billion yuan; the top competitor, Sinopec Oilfield Services, reported a revenue of 55.163 billion yuan [2] - The net profit for the same period was 3.391 billion yuan, ranking 1st in the industry, exceeding the industry average of 0.933 billion yuan and the median of 0.252 billion yuan; the second-ranked competitor, CNOOC Development, reported a net profit of 2.925 billion yuan [2] Financial Ratios - As of Q3 2025, the debt-to-asset ratio for CNOOC Services was 44.26%, lower than the previous year's 46.83% and below the industry average of 60.32%, indicating strong solvency [3] - The gross profit margin for the same period was 18.20%, up from 17.24% year-on-year and above the industry average of 17.03%, reflecting strong profitability [3] Shareholder Information - As of June 30, 2014, the number of A-share shareholders increased by 0.49% to 98,600, with an average holding of 30,000 circulating A-shares, up by 1.23% [5] - As of September 30, 2025, the top ten circulating shareholders included China Securities Finance Corporation with 138 million shares, unchanged, and other notable shareholders with varying changes in holdings [5] Business Highlights - The drilling segment remains robust, with increased operational volume and utilization rates expected to continue rising [6] - The oilfield technical services segment has shown consistent growth, becoming a core business that is likely to drive stable development [6] - The shipping segment has seen significant improvement, while the geophysical exploration business is undergoing adjustments, with future performance expected to improve [6] - CNOOC's capital expenditure remains high, which may lead to more development opportunities due to increased global oil and gas production [6]

Company Overview - CNOOC Services Co., Ltd. is primarily engaged in oil and gas exploration, development, and production, with key business segments including drilling services (27.34% of revenue), oilfield technical services (57.26%), marine services (9.87%), and geophysical exploration services (5.53%) [1] - The company was established on December 25, 2001, and was listed on September 28, 2007 [1] Financial Performance - For the first half of 2025, CNOOC Services reported a revenue of 23.32 billion yuan, representing a year-on-year growth of 3.51%, and a net profit attributable to shareholders of 1.964 billion yuan, which is a 23.33% increase year-on-year [2] - CNOOC Services has distributed a total of 15.492 billion yuan in dividends since its A-share listing, with 2.866 billion yuan distributed over the past three years [3] Stock Performance - As of August 28, CNOOC Services' stock price increased by 2.05% to 14.47 yuan per share, with a market capitalization of 69.045 billion yuan [1] - Year-to-date, the stock has decreased by 3.66%, but has seen a 3.95% increase over the past 20 days and an 8.97% increase over the past 60 days [1] Shareholder Structure - As of June 30, 2025, the number of shareholders increased by 4.90% to 68,200, with an average of 0 circulating shares per person [2] - Major shareholders include Hong Kong Central Clearing Limited, which holds 12.1671 million shares, and several ETFs, with notable changes in holdings among the top ten shareholders [3]

Core Viewpoint - CNOOC Services experienced a decline in stock price and trading volume, with a market capitalization of 68.759 billion yuan as of August 27, 2023 [1] Group 1: Stock Performance - As of August 27, 2023, CNOOC Services' stock price was 14.41 yuan per share, down 2.04% [1] - Year-to-date, the stock price has decreased by 4.05%, with a 2.20% increase over the last five trading days, a 1.55% increase over the last 20 days, and an 8.11% increase over the last 60 days [1] Group 2: Financial Performance - For the first half of 2025, CNOOC Services reported revenue of 23.32 billion yuan, a year-on-year increase of 3.51%, and a net profit attributable to shareholders of 1.964 billion yuan, up 23.33% [2] Group 3: Shareholder Information - As of June 30, 2025, the number of shareholders increased to 68,200, a rise of 4.90% [2] - CNOOC Services has distributed a total of 15.492 billion yuan in dividends since its A-share listing, with 2.866 billion yuan distributed over the last three years [3] - The top ten circulating shareholders include Hong Kong Central Clearing Limited, which reduced its holdings by 37.7625 million shares, and several ETFs that increased their holdings [3]

Group 1 - The Shanghai Composite Index rose by 1.51% to close at 3883.56 points, while the Hang Seng Index increased by 1.94% to 25829.91 points [1] - China Oilfield Services Limited (COSL) has an AH premium of 114.04%, ranking 20th among AH shares [1] - COSL's A-shares closed at 14.62 yuan, up by 1.39%, and H-shares closed at 7.46 HKD, increasing by 0.4% [1] Group 2 - COSL is a major integrated oilfield service provider globally, offering services across all stages of offshore oil and gas exploration, development, and production [1] - The company's business is divided into four main categories: geophysical exploration services, drilling services, oilfield technical services, and marine services [1] - COSL was publicly listed on the Hong Kong Stock Exchange on November 20, 2002, and has been trading in the U.S. OTC market since March 26, 2004, and on the Shanghai Stock Exchange since September 28, 2007 [1]

Group 1 - The Shanghai Composite Index rose by 0.13% to close at 3771.1 points, while the Hang Seng Index fell by 0.24% to 25104.61 points [1] - China Oilfield Services Limited (COSL) has an AH premium of 110.56%, ranking 22nd among AH shares [1] - COSL's A-shares closed at 14.49 yuan, up 2.77%, and H-shares closed at 7.49 HKD, up 4.61% [1] Group 2 - COSL is a major integrated oilfield service provider globally, offering services across all stages of offshore oil and gas exploration, development, and production [1] - The company's services are categorized into four main types: geophysical exploration services, drilling services, oilfield technical services, and marine services [1] - COSL was publicly listed on the Hong Kong Stock Exchange on November 20, 2002, and has been trading in the U.S. OTC market since March 26, 2004, and on the Shanghai Stock Exchange since September 28, 2007 [1]

Company Overview - China Oilfield Services Limited (COSL) is a major integrated oilfield service provider globally, offering services across all stages of offshore oil and gas exploration, development, and production [1] - COSL's business is divided into four main categories: geophysical exploration services, drilling services, oilfield technical services, and marine services [1] Stock Performance - On August 14, the Shanghai Composite Index fell by 0.46%, closing at 3666.44 points, while the Hang Seng Index decreased by 0.37%, closing at 25519.32 points [1] - COSL's A-shares closed at 13.87 yuan, down by 1.0%, and its H-shares closed at 7.19 Hong Kong dollars, down by 0.28% [1] - The A/H premium for COSL reached 111.03%, ranking it 20th among AH shares in terms of premium rate [1] Listing Information - COSL was publicly listed on the Hong Kong Stock Exchange on November 20, 2002, under the stock code 2883 [1] - The company began trading in the U.S. over-the-counter market as American Depositary Receipts (ADRs) on March 26, 2004, with the stock code CHOLY [1] - COSL's A-shares were listed on the Shanghai Stock Exchange on September 28, 2007, under the stock code 601808 [1]

Group 1 - The Shanghai Composite Index rose by 0.48% to close at 3683.46 points, while the Hang Seng Index increased by 2.58% to 25613.67 points [1] - China Oilfield Services Limited (COSL) has an AH premium of 112.57%, ranking 19th among AH stocks in terms of premium rate [1] - COSL's A-shares closed at 14.01 yuan, remaining flat, while its H-shares closed at 7.21 Hong Kong dollars, up by 0.14% [1] Group 2 - COSL is recognized as a large-scale integrated oilfield service provider globally, offering services across all stages of offshore oil and gas exploration, development, and production [1] - The company's business is divided into four main categories: geophysical exploration services, drilling services, oilfield technical services, and marine services [1] - COSL was publicly listed on the Hong Kong Stock Exchange on November 20, 2002, and began trading on the Shanghai Stock Exchange on September 28, 2007 [1]

Company Overview - China Oilfield Services Limited (COSL) is a major integrated oilfield service provider globally, offering services across all stages of offshore oil and gas exploration, development, and production [1] - COSL's business is divided into four main categories: geophysical exploration services, drilling services, oilfield technical services, and marine services [1] Stock Performance - On August 12, the Shanghai Composite Index rose by 0.5%, closing at 3665.92 points, while the Hang Seng Index increased by 0.25%, closing at 24969.68 points [1] - COSL's A-shares closed at 14.01 yuan, with an increase of 0.79%, while its H-shares closed at 7.2 Hong Kong dollars, up by 1.84% [1] A/H Share Premium - COSL's A/H share premium reached 112.43%, ranking it 22nd among A/H shares in terms of premium rate [1][2]