---
title: "China's 'Big Three' Oil Majors Issue Trading Alerts Following Stock Surges"
type: "News"
locale: "en"
url: "https://longbridge.com/en/news/277711354.md"
description: "China's major oil companies, including PetroChina, Cnooc, and Sinopec, issued trading alerts after their stocks surged due to the escalating Middle East conflict affecting oil supply. PetroChina reported a 20% increase in share price over three sessions, while oil prices rose significantly, with Brent crude reaching $82.54 a barrel. However, following the alerts, shares of these companies fell sharply, with PetroChina down 3.65%, Sinopec down 6.8%, and Cnooc down 4.0%. Analysts warn that prolonged conflict could drive oil prices to $100 a barrel and increase global inflation."
datetime: "2026-03-04T02:28:16.000Z"
locales:
  - [zh-CN](https://longbridge.com/zh-CN/news/277711354.md)
  - [en](https://longbridge.com/en/news/277711354.md)
  - [zh-HK](https://longbridge.com/zh-HK/news/277711354.md)
---

> Supported Languages: [简体中文](https://longbridge.com/zh-CN/news/277711354.md) | [繁體中文](https://longbridge.com/zh-HK/news/277711354.md)


# China's 'Big Three' Oil Majors Issue Trading Alerts Following Stock Surges

By Sherry Qin

China's oil majors simultaneously issued trading-volatility alerts, after their shares surged on the escalating Middle East conflict that is disrupting oil supply.

Shanghai-listed PetroChina, Cnooc Ltd. and China Petroleum & Chemical Corp., better known as Sinopec, issued the alerts late Tuesday and reminded investors of trading risks.

PetroChina said its "share price increased by more than 20% in the three consecutive sessions from Feb. 27 to March 3," adding that oil prices could fluctuate as the oil market is affected by geopolitical conditions and supply-demand dynamics.

Sinopec and Cnooc cited similar reasons in their alerts.

The widening Middle East conflict has halted traffic through the Strait of Hormuz, a chokepoint for energy markets, sending front-month Brent more than 10% higher so far this week. Brent was up 1.4% at $82.54 a barrel in early Asian trading Wednesday, while West Texas Intermediate crude was up 1.2%.

Analysts said that a prolonged conflict could propel oil prices to $100 a barrel and push up global inflation.

Shanghai-listed shares of the "Big Three" plunged on Wednesday morning following the warnings. PetroChina shed 3.65%, Sinopec was 6.8% lower and Cnooc declined 4.0%.

Write to Sherry Qin at sherry.qin@wsj.com

(END) Dow Jones Newswires

03-03-26 2118ET

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