Strauss Borrelli PLLC, a leading data breach law firm, is investigating Mack Energy Corporation, regarding its recent data breach. The Mack Energy Corporation data breach involved sensitive personal information belonging to an undetermined number of individuals.
ABOUT MACK ENERGY CORPORATION:
Mack Energy is an oil and gas company based in New Mexico. Founded in 1988, Mack Energy operates a range of oil and gas properties, as well identifies and evaluates prospective oil and gas properties.2 Headquartered in Artesia, New Mexico, Mack Energy employs over 50 individuals and operates an additional location in Fort Worth, Texas.2
WHAT HAPPENED?
On November 7, 2025, Mack Energy reported to the Attorney General of Texas that it had experienced a data breach in which the sensitive personal identifiable information in its systems may have been accessed by an unauthorized third party. As of November 10, 2025, details of the breach have not been made publicly available by Mack Energy. While the information impacted varies depending on the individual, the type of information potentially exposed includes:
- Name
- Social Security number
According to the Attorney General of Texas breach report, Mack Energy has begun providing notice to impacted individuals. A link to the breach report that Mack Energy filed with the Attorney General of Texas is below.
If you received a breach notification letter from Mack Energy Corporation:
We would like to speak with you about your rights and potential legal remedies in response to this data breach. Please fill out the form, below, or contact us at 872.263.1100 or sam@straussborrelli.com.










