Murex Petroleum Corporation Data Breach

Location: MT, ND, SD

About the Investigation:

Did You Receive A Data Breach Notice From Murex Petroleum Corporation?

If so, your sensitive personal identifiable information may have been stolen!

Murex Petroleum Corporation operates 230 wells in the states of Montana, North Dakota, and South Dakota, with interests in five other states as well. In early January of 2026, Murex discovered that their computer network had been breached in May of 2025. This occurred as a result of a ransomware attack conducted by a cybercriminal gang who extracted data including employee names, dates of birth, home addresses, Social Security numbers, and more.

Data breaches are serious matters that can cause long term damage. Hackers break into networks so that they can steal your personal information to sell it on the dark web, commit identity theft, financial theft or other frauds. Ransomware gangs break into networks, steal private data and then demand money for its return. 

How do you know if you were affected? If you receive a letter from Murex Petroleum Corporation notifying you that your private information was impacted in their data breach, contact us to find out if you may be eligible for compensation!

What should you do if you were affected? Among other things, it is important that if the notice letter you receive offers you credit monitoring services, you should sign up for them.  Keep a copy of the data breach notice letter for your records and monitor your accounts for any fraudulent activity. Change the passwords to any accounts you currently have and contact an attorney who can help you with next steps by filling out the form on this page!

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Thank you!  Someone from our intake department will be in touch soon. For more information about what to do when you find out your data has been stolen, please visit Data Stolen in a Data Breach? 4 Steps to Take to Protect Yourself – Join Class Actions
If you have questions or need to contact us immediately, email us at newintakes@sirillp.com.

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