Investment Rating - The report maintains a positive outlook on the polyester industry, particularly for polyester filament yarn, with expectations for improved profitability during the peak season [4][6][19]. Core Insights - The profitability of polyester filament yarn has shown signs of improvement since late July, following a period of weak demand due to export tariffs and seasonal factors [6][7]. - The report highlights that the current inventory pressure is primarily concentrated in the downstream textile sector, with downstream fabric inventory at a high of 30.57 days and filament raw material inventory at a low of 9.85 days [14][15]. - The upstream oil sector is experiencing rising oil prices, with Brent crude oil futures closing at $69.67 per barrel, reflecting a 1.8% increase week-on-week [23][24]. - The refining sector is seeing mixed results, with overseas refined oil crack spreads increasing, while olefin price spreads show variability [54][56]. Summary by Sections Polyester Sector - Polyester filament yarn profitability is gradually improving, with price spreads for POY, FDY, and DTY reaching 1211, 1516, and 1200 CNY/ton respectively as of August 1 [7][19]. - The overall operating rate for polyester filament yarn remains around 90%, while downstream textile enterprises are operating at a low of 50.4% [15][19]. Upstream Sector - Brent crude oil prices have increased, with a week-on-week rise of 1.8%, and WTI prices up by 3.33% [23][24]. - The report notes a decrease in the number of active drilling rigs in the U.S., with a total of 540 rigs as of August 1, down by 2 from the previous week [34]. Refining Sector - The report indicates that the Singapore refining margin for major products has increased to $15.48 per barrel, while domestic refining margins remain at lower levels [54][56]. - The report suggests that refining profitability may improve as economic recovery progresses, despite current low margins [54][56]. Investment Recommendations - The report recommends focusing on leading companies in the polyester sector such as Tongkun Co. and Wankai New Materials, as well as high-quality refining companies like Hengli Petrochemical and Sinopec [19].

1. Report Industry Investment Rating No relevant information is provided in the given content. 2. Core Viewpoints of the Report - This week, the weekly average prices of Brent/WTI crude oil futures were $71.6/$68.5 per barrel, up $2.8/$2.7 per barrel from last week. The total US crude oil inventory, commercial crude oil inventory, strategic crude oil inventory, and Cushing crude oil inventory were 8.3/4.3/4.0/0.2 billion barrels, with a week - on - week increase of 7.94/7.7/0.24/0.69 million barrels respectively. US crude oil production was 13.31 million barrels per day, up 40,000 barrels per day week - on - week. The number of active US crude oil rigs was 410 this week, down 5 week - on - week, and the number of active US fracturing fleets was 168, down 1 week - on - week. US refinery crude oil processing volume was 16.91 million barrels per day, down 30,000 barrels per day week - on - week, and the refinery crude oil utilization rate was 95.4%, down 0.1 pct week - on - week. US crude oil imports, exports, and net imports were 6.14/2.7/3.44 million barrels per day, with a week - on - week change of +160,000/ - 1.16 million/+1.32 million barrels per day respectively [2]. - The weekly average prices of US gasoline, diesel, and jet fuel were $92/$101/$90 per barrel, with a week - on - week change of +$2.9/ - $2.0/ - $4.1 per barrel respectively. The price spreads with crude oil were $20/$30/$19 per barrel, with a week - on - week change of +$0.6/ - $4.3/ - $6.3 per barrel respectively. US gasoline, diesel, and jet fuel inventories were 2.3/1.1/0.4 billion barrels, with a week - on - week change of - 2.72/ + 3.64/ - 2.11 million barrels respectively. US gasoline, diesel, and jet fuel production was 10.04/5.21/1.87 million barrels per day, with a week - on - week change of +680,000/+130,000/ - 10,000 barrels per day respectively. US gasoline, diesel, and jet fuel consumption was 9.15/3.61/2.09 million barrels per day, with a week - on - week change of +190,000/+260,000/+410,000 barrels per day respectively. US gasoline imports, exports, and net exports were 120,000/890,000/770,000 barrels per day, with a week - on - week change of - 40,000/+170,000/+200,000 barrels per day respectively; US diesel imports, exports, and net exports were 230,000/1.31 million/1.09 million barrels per day, with a week - on - week change of +110,000/ - 120,000/ - 230,000 barrels per day respectively; US jet fuel imports, exports, and net exports were 60,000/150,000/80,000 barrels per day, with a week - on - week change of - 90,000/ - 110,000/ - 30,000 barrels per day respectively [2]. - Recommended companies include CNOOC Limited (600938.SH/0883.HK), PetroChina Company Limited (601857.SH/0857.HK), Sinopec Corporation (600028.SH/0386.HK), CNOOC Oilfield Services Limited (601808.SH), Offshore Oil Engineering Co., Ltd. (600583.SH), and CNOOC Energy Technology & Services Limited (600968.SH). Companies to be noted include Sinopec Oilfield Service Corporation (600871.SH/1033.HK), China National Petroleum Corporation Engineering Co., Ltd. (600339.SH), and Sinopec Mechanical Engineering Co., Ltd. (000852.SZ) [3]. 3. Summary by Relevant Catalogs 3.1 Crude Oil Weekly Data Briefing - **Upstream Key Company Price Movements**: This section presents the price, price changes in the recent week, month, three - month, one - year periods, and year - to - date price changes of multiple upstream companies such as CNOOC, PetroChina, and Sinopec, along with their market capitalization and valuation data [8]. - **Crude Oil Price**: The weekly average prices of Brent, WTI, Russian Urals, and Russian ESPO crude oils were $71.6, $68.5, $67.2, and $67.8 per barrel respectively, with week - on - week increases of $2.8, $2.7, $2.3, and $2.9 per barrel respectively. The LME copper spot price was $9,165 per ton, down $653.5 week - on - week, and the US dollar index was 100, up 2.6 week - on - week [8]. - **Crude Oil Inventory**: The total US crude oil inventory, commercial crude oil inventory, strategic crude oil inventory, and Cushing crude oil inventory were 8.3/4.3/4.0/0.2 billion barrels, with a week - on - week increase of 7.94/7.7/0.24/0.69 million barrels respectively [2][8]. - **Crude Oil Production**: US crude oil production was 13.31 million barrels per day, up 40,000 barrels per day week - on - week. The number of US crude oil rigs was 410, down 5 week - on - week, and the number of US fracturing fleets was 168, down 1 week - on - week [2][8]. - **Refinery Data**: US refinery crude oil processing volume was 16.91 million barrels per day, down 30,000 barrels per day week - on - week, and the refinery utilization rate was 95.4%, down 0.1 pct week - on - week. The utilization rate of Chinese local refineries was 51.0%, up 0.95 pct, and that of Chinese major refineries was 84.0%, up 0.05 pct [8]. - **Crude Oil Import and Export**: US crude oil imports, exports, and net imports were 6.14/2.7/3.44 million barrels per day, with a week - on - week change of +160,000/ - 1.16 million/+1.32 million barrels per day respectively [2][8]. - **Product Oil Data**: It includes the price, price spread, inventory, production, consumption, and import/export data of product oils in the US, China, Europe, and Singapore [9]. - **Oilfield Services Data**: The weekly average daily rates of offshore jack - up drilling platforms and semi - submersible drilling platforms are provided [9]. 3.2 This Week's Petroleum and Petrochemical Sector Market Review - **Petroleum and Petrochemical Sector Performance**: No specific performance data is provided in the given content, only the section title is mentioned [11]. - **Performance of Sector Listed Companies**: The price, market capitalization, and price changes in the recent week, month, three - month, one - year periods, and year - to - date price changes of multiple listed companies in the sector are presented, along with their valuation data [22][23]. 3.3 Crude Oil Sector Data Tracking - **Crude Oil Price**: Analyzes the prices and price spreads of Brent, WTI, Urals, ESPO crude oils, as well as the relationship between the US dollar index, copper price, and WTI crude oil price [28][30][40]. - **Crude Oil Inventory**: Discusses the relationship between US commercial crude oil inventory and oil prices, the weekly drawdown rate of US commercial crude oil inventory and the change rate of Brent oil prices, and presents the data of US total crude oil inventory, commercial crude oil inventory, strategic crude oil inventory, and Cushing crude oil inventory [43][44][53]. - **Crude Oil Supply**: Analyzes US crude oil production, the number of crude oil rigs, and the number of fracturing fleets, as well as their relationship with oil prices [57][59][61]. - **Crude Oil Demand**: Presents US refinery crude oil processing volume, refinery utilization rate, and the utilization rates of Chinese local and major refineries [65][69][72]. - **Crude Oil Import and Export**: Analyzes US crude oil imports, exports, net imports, and the import/export and net import data of crude oil and petroleum products [76][81]. 3.4 Product Oil Sector Data Tracking - **Product Oil Price**: Analyzes the relationship between international oil prices and domestic gasoline, diesel retail prices, and presents the prices and price spreads of product oils in different regions such as the US, China, Europe, and Singapore [87][114][120]. - **Product Oil Inventory**: Presents the inventory data of gasoline, diesel, and jet fuel in the US and Singapore [127][131][137]. - **Product Oil Supply**: Presents the production data of gasoline, diesel, and jet fuel in the US [143][145][146]. - **Product Oil Demand**: Presents the consumption data of gasoline, diesel, and jet fuel in the US, as well as the number of US airport passenger screenings [149][150][156]. - **Product Oil Import and Export**: Analyzes the import/export and net export data of gasoline, diesel, and jet fuel in the US [161][166][167]. 3.5 Oilfield Services Sector Data Tracking - Presents the average daily rates of jack - up drilling platforms and semi - submersible drilling platforms in the oilfield services industry [175][180].

截至2025年8月1日收盘，中海油服（601808）报收于13.8元，较上周的14.12元下跌2.27%。本周，中海 油服7月30日盘中最高价报14.26元。8月1日盘中最低价报13.77元。中海油服当前最新总市值658.48亿 元，在油服工程板块市值排名1/13，在两市A股市值排名222/5149。 本周关注点 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。 公司公告汇总 中海油服关于为全资子公司提供担保的公告，担保对象为COSL Middle East FZE，担保金额为9800万美 元，在前期预计额度内，无反担保。截至公告日，上市公司及其控股子公司对外担保总额为441.44亿元 人民币，占上市公司最近一期经审计净资产的比例为99.4%。2025年7月31日，中海油服全资子公司 COSL Middle East FZE与香港上海汇丰银行有限公司签署美元循环贷款协议，中海油服为借款人提供担 保，担保期限至2026年7月30日。COSL Middle East FZE是中海油服的全资子公司，法定代表人为胡文 军，成立时间为2006年 ...

| 概念 | 今日涨跌幅（%） | 概念 | 今日涨跌幅（%） | | --- | --- | --- | --- | | 动物疫苗 | 2.22 | 中船系 | -2.54 | | DRG/DIP | 1.87 | 兵装重组概念 | -1.90 | | BC电池 | 1.71 | 国产航母 | -1.45 | | 禽流感 | 1.62 | 民爆概念 | -1.19 | | ERP概念 | 1.61 | 可燃冰 | -1.14 | | 医疗废物处理 | 1.61 | 国家大基金持股 | -0.86 | | TOPCON电池 | 1.53 | 足球概念 | -0.78 | | 烟草 | 1.53 | 稀土永磁 | -0.73 | | 医药电商 | 1.51 | 中字头股票 | -0.73 | | MLOps概念 | 1.50 | 共封装光学(CPO) | -0.71 | 截至8月1日收盘，可燃冰概念下跌1.14%，位居概念板块跌幅榜前列，板块内，中国石化、新锦动力、 德石股份等跌幅居前，股价上涨的有3只，涨幅居前的有潜能恒信、广州发展、海默科技等，分别上涨 1.26%、0.63%、0.48%。 资金面上看，今日 ...

（文章来源：证券日报） 证券日报网讯 7月31日晚间，中海油服发布公告称，2025年7月31日，公司全资子公司 COSLMiddleEastFZE与香港上海汇丰银行有限公司共同签署美元循环贷款协议。公司为借款人 COSLMiddleEastFZE提供担保，担保金额为9，800万美元，担保期限至2026年7月30日。 ...

证券代码：601808 证券简称：中海油服 公告编号：临 2025-017 中海油田服务股份有限公司 关于为全资子公司提供担保的公告 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 | COSL | Middle 万美元 | East FZE | | --- | --- | --- | --- | --- | --- | | 担 保 象 | 对 | 本次担保金额 | 9,800 | | | | | | 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：_________ | 累计担保情况 | 对外担保逾期的累计金额（亿元 | 0 | | --- | --- | | 人民币） | | | 截至本公告日上市公司及其控股 | | | 子公司对外担保总额（亿元人民 | 441.44 | | 币） | | | 对外担保总额占上市公司最近一 期经审计净资产的比例（%） | 99.4 ...

中海油田服務股份有限公司 CHINA OILFIELD SERVICES LIMITED (於中華人民共和國註冊成立之股份有限公司) （股票代號：2883） 海外監管公告 本公告乃根據《香港聯合交易所有限公司證券上市規則》第13.10B條 規定而作出。 2025年7月31日 於本公告日期，本公司執行董事為趙順強先生（董事長）、盧濤先生 及肖佳先生；本公司非執行董事為范白濤先生及劉秋東先生；本公司 獨立非執行董事為趙麗娟女士、郭琳廣先生及姚昕先生。 证券代码：601808 证券简称：中海油服 公告编号：临 2025-017 中海油田服务股份有限公司 关于为全资子公司提供担保的公告 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 公司 2025 年 3 月 25 日召开的董事会 2025 年第一次会议审议通过了《关于 全资子公司 COSL Middle East FZE 美元贷款续签并由公司为其提供担保的议案》。 详情请见公司于 2025 年 3 月 26 日在上海证券交易所网站（www.sse ...

Market Overview - The oil service engineering sector experienced a decline of 2.09% on July 31, with Tongyuan Petroleum leading the drop [1] - The Shanghai Composite Index closed at 3573.21, down 1.18%, while the Shenzhen Component Index closed at 11009.77, down 1.73% [1] Individual Stock Performance - Notable declines in individual stocks include: - Beiken Energy (002828) down 3.98% to 10.13 [1] - PetroChina Engineering (600339) down 2.56% to 3.43 [1] - Sinopec Oilfield Service (600871) down 1.96% to 2.00 [1] - The trading volume and turnover for these stocks indicate significant market activity, with Beiken Energy having a turnover of 2.82 billion [1] Capital Flow Analysis - The oil service engineering sector saw a net outflow of 149 million from institutional investors, while retail investors contributed a net inflow of 93.17 million [2] - The capital flow for individual stocks shows: - Haiyou Engineering (600583) with a net inflow of 17.39 million from institutional investors [3] - Zhongyou Engineering (600339) with a net inflow of 15.79 million from institutional investors [3] - Beiken Energy (002828) faced a net outflow of 16.96 million from institutional investors [3]

截至7月30日收盘，可燃冰概念上涨3.07%，位居概念板块涨幅第1，板块内，10股上涨，潜能恒信、新 锦动力、神开股份等涨幅居前，分别上涨11.82%、8.07%、4.76%。 资金面上看，今日可燃冰概念板块获主力资金净流入0.21亿元，其中，7股获主力资金净流入，净流入 资金居首的是潜能恒信，今日主力资金净流入6615.85万元，净流入资金居前的还有神开股份、海默科 技、新锦动力等，主力资金分别净流入4791.59万元、3886.83万元、2255.01万元。 资金流入比率方面，海默科技、潜能恒信、神开股份等流入比率居前，主力资金净流入率分别为 10.08%、9.29%、5.00%。（数据宝） 可燃冰概念资金流入榜 今日涨跌幅居前的概念板块 | 概念 | 今日涨跌幅（%） | 概念 | 今日涨跌幅（%） | | --- | --- | --- | --- | | 可燃冰 | 3.07 | 电子身份证 | -2.82 | | 青蒿素 | 2.33 | 数字货币 | -2.81 | | 乳业 | 1.84 | 移动支付 | -2.56 | | 玉米 | 1.38 | 兵装重组概念 | -2.46 | | 社区团 ...

从中证沪港深互联互通中小综合能源指数持仓样本的行业来看，煤炭占比37.69%、焦炭占比19.45%、 油气开采占比12.76%、燃油炼制占比12.13%、油田服务占比8.87%、油气流通及其他占比5.85%、天然 气加工占比3.25%。 资料显示，该指数系列样本每半年调整一次，样本调整实施时间分别为每年6月和12月的第二个星期五 的下一交易日。权重因子随样本定期调整而调整，调整时间与指数样本定期调整实施时间相同。在下一 个定期调整日前，权重因子一般固定不变。特殊情况下将对该指数系列样本进行临时调整。当样本退市 时，将其从指数样本中剔除。样本公司发生收购、合并、分拆等情形的处理，参照计算与维护细则处 理。当中证沪港深500指数、中证沪港深互联互通中小综合指数和中证沪港深互联互通综合指数样本发 生变动时，将进行相应调整。 据了解，中证沪港深行业指数系列将中证沪港深 500、中证沪港深互联互通中小综合以及中证沪港深互 联互通综合指数样本按行业分类标准分别分为 11 个行业，再以各行业全部证券作为样本编制指数，以 反映中证沪港深指数系列中不同行业公司证券的整体表现。该指数以2004年12月31日为基日，以1000.0 ...